The ADuCM355 is an on-chip system that controls and measures electrochemical sensors and biosensors. The ADuCM355 is an ultralow power, mixed-signal microcontroller based on the Arm? Cortex?-M3 processor. The device features current, voltage, and impedance measurement capability.The ADuCM355 features a 16-bit, 400 kSPS, multichannel successive approximation register (SAR) analog-to-digital converter (ADC) with input buffers, built-in antialias filter (AAF), and programmable gain amplifier (PGA). The current inputs include three transimpedance amplifiers (TIA) with programmable gain and load resistors for measuring different sensor types. The analog front end (AFE) also contains two low power amplifiers designed specifically for potentiostat capability to maintain a constant bias voltage to an external electrochemical sensor. The noninverting inputs of these two amplifiers are controlled by on-chip, dual output digital-to-analog converters (DACs). The analog outputs include a high speed DAC and output amplifier designed to generate an ac signal.The ADC operates at conversion rates up to 400 kSPS with an input range of ?0.9 V to +0.9 V. An input mux before the ADC allows the user to select an input channel for measurement. These input channels include three external current inputs, multiple external voltage inputs, and internal channels. The internal channels allow diagnostic measurements of the internal supply voltages, die temperature, and reference voltages.Two of the three voltage DACs are dual output, 12-bit string DACs. One output per DAC controls the noninverting input of a potentiostat amplifier, and the other controls the noninverting input of the TIA.The third DAC (sometimes referred to as the high speed DAC) is designed for the high power TIA for impedance measurements. The output frequency range of this DAC is up to 200 kHz.A precision 1.82 V and 2.5 V on-chip reference source is available. The internal ADC and voltage DAC circuits use this on-chip reference source to ensure low drift performance for all peripherals.The ADuCM355 integrates a 26 MHz Arm Cortex-M3 processor, which is a 32-bit reduced instruction set computer (RISC)?machine. The Arm Cortex-M3 processor also has a flexible multichannel direct memory access controller (DMA) supporting two independent serial peripheral interface (SPI) ports, universal asynchronous receiver/transmitter (UART), and I2C communication peripherals. The ADuCM355 has 128 kB of nonvolatile flash/EE memory and 64 kB of single random access memory (SRAM) integrated on-chip.The digital processor subsystem is clocked from a 26 MHz on-chip oscillator. The oscillator is the source of the main digital die system clock. Optionally, a 26 MHz phase-locked loop (PLL) can be used as the digital system clock. This clock can be internally subdivided so that the processor operates at a lower frequency and saves power. A low power, internal 32 kHz oscillator is available and can clock the timers. The ADuCM355 includes three general-purpose timers, a wake-up timer (which can be used as a general-purpose timer), and a system watchdog timer.The analog subsystem has a separate 16 MHz oscillator used to clock the ADC, DACs, and other digital logic on the analog die. The analog die also contains a separate 32 kHz, low power oscillator to clock a watchdog timer on the analog die. Both the 32 kHz oscillator and this watchdog are independent from the digital die oscillators and system watchdog timer.A range of communication peripherals can be configured as required in a specific application. These peripherals include UART, I2C, two SPI ports, and general-purpose input/output (GPIO) ports. The GPIOs, combined with the general-purpose timers, can be combined to generate a pulse-width modulation (PWM) type output.Nonintrusive emulation and program download are supported via the serial wire debug port (SW-DP) interface.The ADuCM355 operates from a 2.8 V to 3.6 V supply and is specified over a temperature range of ?40?C to +85?C. The chip is packaged in a 72-lead, 6 mm ? 5 mm land grid array (LGA) package.Note that, throughout this data sheet, multifunction pins, such as P0.0/SPI0_CLK, are referred to either by the entire pin name or by a single function of the pin, for example, P0.0, when only that function is relevant.Applications Gas detection Food quality Environmental sensing (air, water, and soil) Blood glucose meters Life sciences and biosensing analysis Bioimpedance measurements General Amperometry, voltammetry, and impedance spectroscopy functions

The ADuCM362/ADuCM363 is a fully integrated, 3.9 kSPS, 24-bit data acquisition system that incorporates dual, high performance, multichannel sigma-delta (?-?) analog-to-digital converters (ADCs), a 32-bit ARM Cortex?-M3 processor, and Flash/EE memory on a single chip. The ADuCM362/ ADuCM363 are designed for direct interfacing to external precision sensors in both wired and battery-powered applications. The ADuCM363 contains all the features of the ADuCM362, except that only one 24-bit ?-? ADC (ADC1) is available.The ADuCM362/ADuCM363 contain an on-chip 32 kHz oscillator and an internal 16 MHz high frequency oscillator. The high frequency oscillator is routed through a programmable clock divider from which the operating frequency of the processor core clock is generated. The maximum core clock speed is 16 MHz; this speed is not limited by operating voltage or temperature.The microcontroller core is a low power ARM Cortex-M3 processor, a 32-bit RISC machine that offers up to 20 MIPS peak performance. The Cortex-M3 processor incorporates a flexible, 11-channel DMA controller that supports all wired communica-tion peripherals (both SPIs, both UARTs, and I2C). Also integrated on chip are up to 256 kB of nonvolatile Flash/EE memory and 24 kB of SRAM.The analog subsystem consists of dual ADCs, each connected to a flexible input mux. Both ADCs can operate in fully differential and single-ended modes. Other on-chip ADC features include dual programmable excitation current sources, diagnostic current sources, and a bias voltage generator of AVDD_REG/2 (900 mV) to set the common-mode voltage of an input channel. A low-side internal ground switch is provided to allow power-down of an external circuit (for example, a bridge circuit) between conversions. Optional input buffers are provided for the analog inputs and the external reference inputs. These buffers can be enabled for all PGA gain settings.The ADCs contain two parallel filters: a sinc3 or sinc4 filter in parallel with a sinc2 filter. The sinc3 or sinc4 filter is used for precision measurements. The sinc2 filter is used for fast measure-ments and for the detection of step changes in the input signal.The devices contain a low noise, low drift internal band gap reference, but they can be configured to accept one or two external reference sources in ratiometric measurement config-urations. An option to buffer the external reference inputs is provided on chip. A single-channel buffered voltage output DAC is also provided on chip.The ADuCM362/ADuCM363 integrate a range of on-chip peripherals, which can be configured under microcontroller software control as required in the application. The peripherals include two UARTs, I2C, and dual SPI serial I/O communication controllers; a 19-pin GPIO port; two general-purpose timers; a wake-up timer; and a system watchdog timer. A 16-bit PWM controller with six output channels is also provided.The ADuCM362/ADuCM363 are specifically designed to operate in battery-powered applications where low power operation is critical. The microcontroller core can be configured in a normal operating mode that consumes 290 ?A/MHz (including flash/SRAM IDD). An overall system current consumption of 1 mA can be achieved with both ADCs on (input buffers off), PGA gain of 4, one SPI port on, and all timers on.The ADuCM362/ADuCM363 can be configured in a number of low power operating modes under direct program control, including a hibernate mode (internal wake-up timer active) that consumes only 4 ?A. In hibernate mode, peripherals, such as external interrupts or the internal wake-up timer, can wake up the devices. This mode allows the devices to operate with ultralow power while still responding to asynchronous external or periodic events.On-chip factory firmware supports in-circuit serial download via a serial wire interface (2-pin JTAG system) and UART; non-intrusive emulation is also supported via the serial wire interface. These features are incorporated into a low cost QuickStart? Development System that supports this precision analog micro-controller family.The devices operate from an external 1.8 V to 3.6 V voltage supply and are specified over an industrial temperature range of ?40?C to +125?C.Applications Industrial automation and process control Intelligent precision sensing systems 4 mA to 20 mA loop-powered smart sensor systems Medical devices, patient monitoring

The ADuCM410 is a fully integrated, single package device that includes high performance analog peripherals together with digital peripherals (controlled by a 160 MHz Arm? Cortex?-M33 processor) and integrated flash for code and data.The analog-to-digital converter (ADC) on the ADuCM410 provides 16-bit, 2 MSPS data acquisition using up to 16 input pins that can be programmed for single-ended or differential operation with a programmable gain amplifier (PGA) or transimpedance amplifier (TIA) for voltage and current measurements. Additionally, the die temperature and supply voltages can be measured.The ADC input voltage is 0 V to VREF. A sequencer is provided that allows a user to select a set of ADC channels to be measured in sequence without software involvement during the sequence. The sequence can optionally repeat automatically at a user-selectable rate.Up to 12 channels of 12-bit voltage digital-to-analog converters (VDACs) are provided with output buffers supported.The ADuCM410 can be configured so that the digital and analog outputs retain their output voltages through a watchdog or software reset sequence. Therefore, a product can remain functional even while the ADuCM410 is resetting itself.The ADuCM410 has a low power Arm Cortex-M33 processor and a 32-bit reduced instruction set computer (RISC) machine that offers up to 240 MIPS peak performance with a floating-point unit (FPU). Also integrated are 2? 512 kB Flash/EE memories and 128 kB static random access memory (SRAM)?both with single-error correction (SEC) and double error detection (DED) error checking and correction (ECC). The flash comprises two separate 512 kB blocks supporting execution from one flash block and simultaneous writing and/or erasing of the other flash block.The ADuCM410 operates from an on-chip oscillator and has a phase-locked loop (PLL) of 160 MHz. This clock can optionally be divided down to reduce current consumption. Additional low power modes can be set via the ADuCM410 software.The device includes a management data input/output (MDIO) interface capable of operating up to 10 MHz. User programming is eased by incorporating physical address (PHYADR) and device address (DEVAD) hardware comparators. The nonerasable kernel code combined with flags in user flash allow user code to reliably switch between the two hardware independent flash blocks.The ADuCM410 integrates a range of on-chip peripherals that can be configured under software control, as required in the application. These peripherals include 2? universal asynchronous receiver transmitter (UART), 3? I2C, and 3? serial peripheral interface (SPI) serial input/output communication controllers, general-purpose inputs/outputs (GPIOs), 32-element programmable logic arrays (PLAs), five general-purpose timers, a wake-up timer (WUT), and a system watchdog timer (WDT). A 16-bit pulse-width modulation (PWM) with eight output channels is also provided.The GPIO pins (Px.x) power up in high impedance input mode. In output mode, the software chooses between open-drain mode and push/pull mode. The pull-up and pull-down resistors can be disabled and enabled in the software. The GPIO pins can be configured with different voltage levels according to the IOVDDx pin, such as 3.3 V, 1.8 V, and 1.2 V. In GPIO output mode, the inputs can remain enabled to monitor the GPIO pins. The GPIO pins can also be programmed to handle digital or analog peripheral signals, in which case, the pin characteristics are matched to the specific requirement.A large support ecosystem is available for the Arm Cortex-M33 processor to ease product development of the ADuCM410. Access is via the Arm serial wire debug port. On-chip factory firmware supports in-circuit serial download via MDIO or I2C. These features are incorporated into a low cost, quick start development system supporting this precision analog microcontroller.Note that throughout this data sheet, multifunction pins, such as VDAC7/P4.2, are referred to either by the entire pin name or by a single function of the pin, for example, P4.2, when only that function is relevant.APPLICATIONS Optical networking 100 Gbps/200 Gbps/400 Gbps and higher frequency modules Industrial control, automation, and instrumentation systems

Low power precision analog microcontroller, ARM cortex M3 with dual sigma-delta ADCs Features: Analog input/output Dual (24-bit) ADCs 6 differential or 12 single-ended input channels Programmable Gain Amplifiers (PGA) (1-128) for each ADC Flexible input MUX for input channel selection to both ADCs Buffers for external reference connection  Programmable sensor excitation current sources On-chip precision voltage reference Single 12-bit voltage output DAC NPN mode for 4 mA to 20 mA loop applications Microcontroller ARM Cortex-M3 32-bit processor Serial wire download and debug Internal watch crystal for wakeup timer 16 MHz oscillator with 8-way programmable divider Memory 128 kB Flash/EE Memory, 8k Bytes SRAM  In-circuit debug/download via Serial Wire and UART Power Operates directly from a 3.0V battery Power consumption MCU Active Mode: Core consumes 290μA / MHz Active Mode: 1.0mA (All peripherals active), core operating at 500KHz Supply Range: 1.8V to 3.6V (max) Power down mode: 4μA (WU Timer Active) On-chip peripheral UART, I2C and 2 x SPI serial I/O 16-bit PWM controller 19-pin multifunction GPIO Port See data sheet for additional features Package and temperature range 48-lead LFCSP (7mm x 7mm) package –40°C to 125°C Development tools Low cost QuickStart Development System Third-party compiler and emulator tool support Multiple functional safety features for improved diagnostics

MicroConverter, 12-Bit ADCs and DACs with Embedded 62 kBytes Flash MCU Features: ANALOG I/O 8-channel, 247 kSPS 12-bit ADC DC performance: ±1 LSB INL AC performance: 71 dB SNR DMA controller for high speed ADC-to-RAM capture 2 12-Bit (monotonic) voltage output DACs Dual output PWM/Σ-Δ DACs On-chip temperature sensor function ±3C On-chip voltage reference Memory 62 kBytes on-chip Flash/EE program memory 4 kBytes on-chip Flash/EE data memory Flash/EE, 100 yr retention, 100 kCycles endurance 2304 bytes on-chip data RAM 8051 based core 8051 compatible instruction set (16 MHz max) 12 interrupt sources, 2 priority levels Dual data pointer Extended 11-bit stack pointer See data sheet for additional features

Precision Analog Microcontroller, Tunable Optical Control Microcontroller Features: Analog input/output 22-channel, 14-bit, 800 kSPS analog-to-digital converter (ADC) 10 external channels 1 on-chip die temperature monitor 6 current output digital-to-analog converter (IDAC) monitor channels 3 power monitor channels 2 buffered reference output channels Fully differential and single-ended modes 0 V to 2.5 V analog input range 6 low noise, 12-/14-bit IDAC outputs 1× 250 mA, 1× 200 mA, 2× 100 mA, and 2× 20 mA Semiconductor optical amplifier (SOA) IDAC pull-down to −3.0 V for fast current sink Eight 12-bit voltage output DACs (VDACs) Channel 0 and Channel 1: 0 V to 3 V, 75 Ω load Channel 2 and Channel 3: −5 V to 0 V, 500 Ω load Channel 4 and Channel 5: 0 V to 3 V, 300 Ω load Channel 6: 0 V to 5 V, 500 Ω load Channel 7: 0 V to 5 V, 100 Ω load 2.5 V, on-chip voltage reference 2 buffered 2.5 V outputs Microcontroller ARM Cortex-M3 processor, 32-bit RISC architecture Serial wire port supports code download and debugging Clocking options Trimmed on-chip oscillator (±3%) 80 MHz phase-locked loop (PLL) External 16 MHz crystal option External clock source Memory 2× 128 kB Flash/EE memories, 32 kB SRAM In-circuit download, SW-DP-based debugging Software triggered in-circuit reprogrammability On-chip peripherals UART, 2× I2C and 2× SPI serial input/output 28-pin general-purpose input/output (GPIO) port 3 general-purpose timers Wake-up (W/U) timer Watchdog timer (WDT) 32-element programmable logic array (PLA) Vectored interrupt controller Interrupt on edge or level external pin inputs 9× external interrupts Power Multiple supplies 5 V for VDAC6 and VDAC7 3.3 V for digital and analog inputs/outputs 1.8 V to 2.7 V for IDACs −5 V supply for IDAC3 and VDAC2/VDAC3 Package and temperature range 6 mm × 6 mm, 112-ball CSP_BGA package Fully specified for −40°C to +85°C ambient operation Tools QuickStart™ development system Full third party support

Precision Analog Microcontrollers, Analog I/O with MDIO Interface, ARM Cortex-M3 Features: Analog input/output Multichannel, 12-bit, 1 MSPS analog-to-digital converter (ADC) Up to 16 ADC input channels 0 V to VREF analog input range Single-ended modes AVDD and IOVDD monitors 12-bit voltage output digital-to-analog converters (VDACs) 8 VDACs with a range of 0 V to 2.5 V or AVDD outputs Voltage comparator Microcontroller ARM Cortex-M3 processor, 32-bit RISC architecture Serial wire port supports code download and debug Clocking options 80 MHz phase-locked loop (PLL) with programmable divider Trimmed on-chip oscillator (±3%) External 16 MHz crystal option External clock source up to 80 MHz Memory 2 × 128 kB independent Flash/EE memories 10,000 cycle Flash/EE endurance 20-year Flash/EE retention 32 kB SRAM Software triggered in-circuit reprogrammability via management data input/output (MDIO) On-chip peripherals MDIO slave up to 4 MHz 2 × I2C, 2 × SPI, UART Multiple general-purpose input/output (GPIO) balls: 3.6 V compliant 7 × 1.2 V compatible when used for MDIO 32-element programmable logic array (PLA) 3 general-purpose timers Wake-up timer Watchdog timer 16-bit pulse width modulator (PWM) Power Supply range: 2.9 V to 3.6 V Flexible operating modes for low power applications Packages and temperature range 6 mm × 6 mm, 96-ball CSP_BGA package Fully specified for −40°C to +105°C ambient operation Tools QuickStart development system Full third-party support

Precision Analog Microcontroller, 16-Bit Analog Input/Output with MDIO Interface, Arm Cortex-M33 Features: Analog input/output Multichannel, 16-bit, 2 MSPS ADC Up to 16 external channels On-chip die temperature monitor 4 power monitor channels 4 PGA/TIA channels supporting voltage and current measurements Fully differential and single-ended modes 0 V to VREF analog input range 12-bit voltage output DACs 8× 0 V to 2.5 V, 1 kΩ load 4× 0 V to 2.5 V, 2.5 kΩ load On-chip low drift voltage reference, 1.25 V or 2.5 V Buffered 1.25 V or 2.5 V output 4 voltage comparators Microcontroller 32-bit Arm Cortex-M33 core, 32-bit RISC architecture, FPU Serial wire port supports code download and debug Clocking options 16 MHz on-chip oscillator 160 MHz PLL output with programmable divider External clock source Memory 2× 512 kB independent Flash/EE memories 10,000-cycle Flash/EE endurance 20-year Flash/EE retention 128 kB SRAM with ECC Software triggered, in circuit reprogrammability via MDIO or I2C On-chip peripherals 2× UART, 3× SPI, 3× I2C serial input/output Multilevel voltage (3.3 V, 1.8 V, 1.2 V) GPIOs MDIO slave up to 10 MHz 5 general-purpose timers Wake-up timer (WUTs) Watchdog timers (WDTs) 32-element PLA 16-bit PWM 10 external Interrupts Power Multiple supplies: 3.3 V for voltage DACs and ADCs, and 3.3 V, 1.8 V, or 1.2 V for digital inputs/outputs Flexible operating modes for low power applications Packages and temperature range 5 mm × 5 mm 81-ball CSP_BGA and 3.46 mm × 3.46 mm 64-ball WLCSP BGA package uses ULA molding compounds Fully specified for −40°C to +105°C operation Tools Low cost quick start development system Full third-party support  

Configurable Impedance Network Analyzer & Potentiostat with Integrated Cortex M3 Core Features: Analog performance 160 kSPS, 16-bit, precision analog-to-digital converter (ADC) 4 dedicated voltage measurement channels 8 current measurement channels Impedance measurement engine High precision voltage reference Supply noise rejection filtering Ultralow leakage configurable switch matrix 12-bit digital-to-analog converter (DAC) Precision instrumentation amplifier control loop 6-channel CapTouch controller Temperature sensor Analog hardware accelerators Autonomous analog front-end (AFE) controller Independent sequencer for AFE functions Direct digital synthesizer (DDS)/arbitrary waveform generator Receive filters Complex impedance measurement (DFT) engine Processing 16 MHz ARM Cortex-M3 processor 384 kB of embedded flash memory 32 kB system SRAM 16 kB Flash configured EEPROM Integrated full-speed USB 2.0 controller and PHY Multilayer advanced microcontroller bus architecture (AMBA) bus matrix Central direct memory access (DMA) controller Real-time clock (RTC) General-purpose, wake-up, and watchdog timers Communication Input/output I2S and beeper interface LCD display controller (parallel and serial) LCD segment controller SPI, I2C, and UART peripheral interfaces Programmable GPIOs Power Coin cell battery compatible 2.5 V to 3.6 V active measurement range Power management unit (PMU) Power-on reset (POR) and power supply monitor (PSM) Packages and temperature range Operating temperature range: −40°C to +85°C Package: 120-lead, 8 mm × 8 mm CSP_BGA 

Configurable Impedance Network Analyzer & Potentiostat with Integrated Cortex M3 Core Features: Analog performance 160 kSPS, 16-bit, precision analog-to-digital converter (ADC) 4 dedicated voltage measurement channels 8 current measurement channels Impedance measurement engine High precision voltage reference Supply noise rejection filtering Ultralow leakage configurable switch matrix 12-bit digital-to-analog converter (DAC) Precision instrumentation amplifier control loop 6-channel CapTouch controller Temperature sensor Analog hardware accelerators Autonomous analog front-end (AFE) controller Independent sequencer for AFE functions Direct digital synthesizer (DDS)/arbitrary waveform generator Receive filters Complex impedance measurement (DFT) engine Processing 16 MHz ARM Cortex-M3 processor 384 kB of embedded flash memory 32 kB system SRAM 16 kB Flash configured EEPROM Integrated full-speed USB 2.0 controller and PHY Multilayer advanced microcontroller bus architecture (AMBA) bus matrix Central direct memory access (DMA) controller Real-time clock (RTC) General-purpose, wake-up, and watchdog timers Communication Input/output I2S and beeper interface LCD display controller (parallel and serial) LCD segment controller SPI, I2C, and UART peripheral interfaces Programmable GPIOs Power Coin cell battery compatible 2.5 V to 3.6 V active measurement range Power management unit (PMU) Power-on reset (POR) and power supply monitor (PSM) Packages and temperature range Operating temperature range: −40°C to +85°C Package: 120-lead, 8 mm × 8 mm CSP_BGA