Based on the iCoupler? and isoPower? chip scale transformertechnology, the ADM3260 is a hot swappable digital and powerisolator with two nonlatching, bidirectional communicationchannels, supporting a complete isolated I2C interface, and anintegrated isolated dc-to-dc converter, supporting up to150 mW of isolated power conversion.iCoupler is a chip scale transformer technology with functional,performance, size, and power consumption advantages ascompared to optocouplers. The bidirectional I2C channels eliminate the need for splitting I2C signals into separate transmitand receive signals for use with standalone optocouplers.Based on the Analog Devices, Inc., isoPower technology, theon-chip isolated dc-to-dc converter provides a regulated, isolatedvoltage of 3.15 V to 5.25 V with up to 150 mW of output power.With the ADM3260, the iCoupler and isoPower channels, alongwith the I2C transceivers, can be integrated with semiconductorcircuitry, which enables a complete isolated I2C interface andallows the power converter to be implemented in a small formfactor. The ADM3260 is available in 20-lead SSOP package andhas an operating temperature range of ?40?C to+105?C.isoPower uses high frequency switching elements to transfer powerthrough its transformer. Special care must be taken during printedcircuit board (PCB) layout to meet emissions standards. See theAN-0971 Application Note for board layout recommendationsApplications Isolated I2C, SMBus, and PMBus interfaces Multilevel I2C interfaces Central office switching Telecommunication and data communication equipment ?48 V distributed power systems ?48 V power supply modules Networking

The ADN4650/ADN4651/ADN46521 are signal isolated, low voltage differential signaling (LVDS) buffers that operate at up to 600 Mbps with very low jitter.The devices integrate Analog Devices, Inc., iCoupler? technology, enhanced for high speed operation, to provide galvanic isolation of the TIA/EIA-644-A compliant LVDS drivers and receivers. This technology allows drop-in isolation of an LVDS signal chain.Multiple channel configurations are offered, and the LVDS receivers on the ADN4651/ADN4652 include a fail-safe mechanism to ensure a Logic 1 on the corresponding LVDS driver output when the inputs are floating, shorted, or terminated, but not driven.For high speed operation with low jitter, the LVDS and isolator circuits rely on a 2.5 V supply. An integrated on-chip low dropout regulator (LDO) can provide the required 2.5 V from an external 3.3 V power supply. The devices are fully specified over a wide industrial temperature range and are available in a 20-lead, wide body SOIC package with 5 kV rms isolation or a 20-lead SSOP package with 3.75 kV rms isolation.Applications Analog front-end (AFE) isolation Data plane isolation Isolated high speed clock and data links Isolated serial peripheral interface (SPI) over LVDS

The ADN4693E-1 is a multipoint, low voltage differential signaling (M-LVDS) transceiver (driver and receiver pair) that can operate at up to 200 Mbps (100 MHz) nonreturn to zero (NRZ). The receiver detects the bus state with a differential input of as little as ?50 mV over the common-mode voltage range of the device. Electrostatic discharge (ESD) protection of up to ?15 kV is implemented on the bus pins. The ADN4693E-1 is designed to the TIA/EIA-899 standard for M-LVDS and complement TIA/EIA-644 LVDS devices with additional multipoint capabilities.The ADN4693E-1 features a Type 1 receiver with 25 mV of hysteresis so that slow-changing signals or loss of input does not lead to output oscillations.This full-duplex device is available in a compact 16-lead, 4 mm ? 4 mm lead frame chip scale package (LFCSP). The ADN4693E-1 is specified over the -40?C to +120?C junction temperature range.APPLICATIONS Backplane and cable multipoint data transmission Multipoint clock distribution Low power, high speed alternative to shorter RS-485 links Networking and wireless base station infrastructure Grid infrastructure and relay protection systems

The ADN4691E?/?ADN4693E?/ ADN4696E /?ADN4697E aremultipoint, low voltage differential signaling (M-LVDS)transceivers (driver and receiver pairs) that can operate at up to200 Mbps (100 MHz). The receivers detect the bus state with adifferential input of as little as 50 mV over a common-modevoltage range of ?1 V to +3.4 V. ESD protection of up to ?15 kVis implemented on the bus pins. The devices adhere to theTIA/EIA-899 standard for M-LVDS and complement TIA/EIA-644 LVDS devices with additional multipoint capabilities.The ADN4691E / ADN4693E are Type 1 receivers with 25 mV ofhysteresis so that slow-changing signals or loss of input does notlead to output oscillations. The ADN4696E / ADN4697E areType 2 receivers exhibiting an offset threshold, guaranteeing theoutput state when the bus is idle (bus-idle fail-safe) or the inputs areopen (open-circuit fail-safe).The devices are available as half-duplex in an 8-lead SOIC package(the ADN4691E / ADN4696E) or as full-duplex in a 14-leadSOIC package (the ADN4693E / ADN4697E).APPLICATIONS Backplane and cable multipoint data transmission Multipoint clock distribution Low power, high speed alternative to shorter RS-485 links Networking and wireless base station infrastructure

The ADPD188GG is a complete photometric system designed to measure optical signals from ambient light and from synchronous reflected light emitting diode (LED) pulses. Synchronous measurement offers best-in-class rejection of ambient light interference, both dc and ac. The module integrates a highly efficient photometric front end, two LEDs, and two photodiode (PD). All of these items are housed in a custom package that prevents light from going directly from the LED to the photodiode without first entering the subject.The front end of the application specific integrated circuit (ASIC) consists of a control block, a 14-bit analog-to-digital converter (ADC) with a 20-bit burst accumulator, and three flexible, independently configurable LED drivers. The control circuitry includes flexible LED signaling and synchronous detection. The analog front end (AFE) features best-in-class rejection of signal offset and corruption due to modulated interference commonly caused by ambient light. The data output and functional configuration occur over a 1.8 V I2C interface or a serial peripheral interface (SPI) port.Applications Optical heart rate monitoring Reflective PPG measurement CNIBP measurement?

The ADuC7023 is a fully integrated, 1 MSPS, 12-bit data acquisition system, incorporating high performance multichannel ADCs, 16-bit/32-bit MCUs, and Flash/EE memory on a single chip.The ADC consists of up to 12 single-ended inputs. An additional four inputs are available but are multiplexed with the four DAC output pins. The ADC can operate in single-ended or differential input modes. The ADC input voltage is 0 V to VREF. A low drift band gap reference, temperature sensor, and voltage comparator complete the ADC peripheral set.The DAC output range is programmable to one of two voltage ranges. The DAC outputs have an enhanced feature of being able to retain their output voltage during a watchdog or software reset sequence.The devices operate from an on-chip oscillator and a PLL, generating an internal high frequency clock of 41.78 MHz. This clock is routed through a programmable clock divider from which the MCU core clock operating frequency is generated. The microcontroller core is an ARM7TDMI?, 16-bit/32-bit RISC machine that offers up to 41 MIPS peak performance. Eight kilobytes of SRAM and 62 kilobytes of nonvolatile Flash/EE memory are provided on chip. The ARM7TDMI core views all memory and registers as a single linear array.The ADuC7023 contains an advanced interrupt controller. The vectored interrupt controller (VIC) allows every interrupt to be assigned a priority level. It also supports nested interrupts to a maximum level of eight per IRQ and FIQ. When IRQ and FIQ interrupt sources are combined, a total of 16 nested interrupt levels are supported.On-chip factory firmware supports in-circuit download via the I2C serial interface port, and non-intrusive emulation is supported via the JTAG interface. These features are incorporated into a low cost QuickStart? development system supporting this MicroConverter? family. The part contains a 16-bit PWM with five output signals.For communication purposes, the part contains 2 ? I2C channels that can be individually configured for master or slave mode. An SPI interface supporting both master and slave modes is also provided.The parts operate from 2.7 V to 3.6 V and are specified over an industrial temperature range of ?40?C to +125?C. The ADuC7023 is available in either a 32-lead or 40-lead LFCSP package. A 36-ball wafer level CSP package (WLCSP) is also available.Applications Optical networking Industrial control and automation systems Smart sensors, precision instrumentation Base station systems

The ADuC841/ADuC842/ADuC843 are complete smart transducer front ends, that integrates a high performance self-calibrating multichannel ADC, a dual DAC, and an optimized single-cycle 20 MHz 8-bit MCU (8051 instruction set compatible)on a single chip.The ADuC841 and ADuC842 are identical with the exception of the clock oscillator circuit; the ADuC841 is clocked directly from an external crystal up to 20 MHz whereas the ADuC842 uses a 32 kHz crystal with an on-chip PLL generating a programmable core clock up to 16.78 MHz.The ADuC843 is identical to the ADuC842 except that the ADuC843 has no analog DAC outputs.The microcontroller is an optimized 8052 core offering up to 20 MIPS peak performance. Three different memory options are available offering up to 62 kBytes of nonvolatile Flash/EE program memory. Four kBytes of nonvolatile Flash/EE data memory, 256 bytes RAM, and 2 kBytes of extended RAM are also integrated on-chip. The parts also incorporate additional analog functionality with two 12-bit DACs, power supply monitor, and a band gap reference. On-chip digital peripherals include two 16-bit ?-?. DACs, a dual output 16-bit PWM, a watchdog timer, a time interval counter, three timers/counters, and three serial I/O ports (SPI, I2C, and UART).On the ADuC812 and the ADuC832, the I2C and SPI interfaces share some of the same pins. For backwards compatibility, this is also the case for the ADuC841/ADuC842/ADuC843.However, there is also the option to allow SPI operate separately on P3.3, P3.4, and P3.5, while I2C uses the standard pins. The I2C interface has also been enhanced to offer repeated start, general call, and quad addressing.On-chip factory firmware supports in-circuit serial download and debug modes (via UART) as well as single-pin emulation mode via the EA pin..Applications Optical networking?laser power control Base station systems Precision instrumentation, smart sensors Transient capture systems DAS and communications systems

The ADuC841/ADuC842/ADuC843are complete smart transducer front ends, that integrates a high performance self-calibrating multichannel ADC, a dual DAC, and an optimized single-cycle 20 MHz 8-bit MCU (8051 instruction set compatible)on a single chip.The ADuC841 and ADuC842 are identical with the exception of the clock oscillator circuit; the ADuC841 is clocked directly from an external crystal up to 20 MHz whereas the ADuC842 uses a 32 kHz crystal with an on-chip PLL generating aprogrammable core clock up to 16.78 MHz.The ADuC843 is identical to the ADuC842 except that the ADuC843 has no analog DAC outputs.The microcontroller is an optimized 8052 core offering up to 20 MIPS peak performance. Three different memory options are available offering up to 62 kBytes of nonvolatile Flash/EE program memory. Four kBytes of nonvolatile Flash/EE data memory, 256 bytes RAM, and 2 kBytes of extended RAM arealso integrated on-chip. The parts also incorporate additional analog functionality with two 12-bit DACs, power supply monitor, and a band gap reference. On-chip digital peripherals include two 16-bit ?-?. DACs, a dual output 16-bit PWM, a watchdog timer, a time interval counter, three timers/counters, and three serial I/O ports (SPI, I2C, and UART).On the ADuC812 and the ADuC832, the I2C and SPI interfaces share some of the same pins. For backwards compatibility, this is also the case for the ADuC841/ADuC842/ADuC843.However, there is also the option to allow SPI operate separately on P3.3, P3.4, and P3.5, while I2C uses the standard pins. The I2C interface has also been enhanced to offer repeated start, general call, and quad addressing.On-chip factory firmware supports in-circuit serial download and debug modes (via UART) as well as single-pin emulation mode via the EA pin.Applications Optical networking?laser power control Base station systems Precision instrumentation, smart sensors Transient capture systems DAS and communications systems

The ADuC845, ADuC847, and ADuC848 are single-cycle,12.58 MIPs, 8052 core upgrades to the ADuC834 andADuC836. They include additional analog inputs forapplications requiring more ADC channels.The ADuC845, ADuC847, and ADuC848 are complete smarttransducer front ends. The family integrates high resolution?-? ADCs with flexible, up to 10-channel, input multiplexing, afast 8-bit MCU, and program and data Flash/EE memory on asingle chip.The ADuC845 includes two (primary and auxiliary) 24-bit ?-?ADCs with internal buffering and PGA on the primary ADC.The ADuC847 includes the same primary ADC as the ADuC845(auxiliary ADC removed). The ADuC848 is a 16-bit ADCversion of the ADuC847.The ADCs incorporate flexible input multiplexing, a temperaturesensor (ADuC845 only), and a PGA (primary ADC only)allowing direct measurement of low-level signals. The ADCsinclude on-chip digital filtering and programmable output datarates that are intended for measuring wide dynamic range andlow frequency signals, such as those in weigh scale, strain gage,pressure transducer, or temperature measurement applications.The devices operate from a 32 kHz crystal with an on-chip PLLgenerating a high frequency clock of 12.58 MHz. This clock isrouted through a programmable clock divider from which theMCU core clock operating frequency is generated. The microcontrollercore is an optimized single-cycle 8052 offering up to12.58 MIPs performance while maintaining 8051 instruction setcompatibility.The available nonvolatile Flash/EE program memory optionsare 62 kbytes, 32 kbytes, and 8 kbytes. 4 kbytes of nonvolatileFlash/EE data memory and 2304 bytes of data RAM are alsoprovided on-chip. The program memory can be configured asdata memory to give up to 60 kbytes of NV data memory indata logging applications.On-chip factory firmware supports in-circuit serial downloadand debug modes (via UART), as well as single-pin emulationmode via the EA pin. The ADuC845, ADuC847, and ADuC848are supported by the QuickStart? development system featuringlow cost software and hardware development tools.Applications Multichannel sensor monitoring Industrial/environmental instrumentation Weigh scales, pressure sensors, temperature monitoring Portable instrumentation, battery-powered systems Data logging, precision system monitoring

The ADuC845, ADuC847, and ADuC848 are single-cycle,12.58 MIPs, 8052 core upgrades to the ADuC834 andADuC836. They include additional analog inputs forapplications requiring more ADC channels.The ADuC845, ADuC847, and ADuC848 are complete smarttransducer front ends. The family integrates high resolution?-? ADCs with flexible, up to 10-channel, input multiplexing, afast 8-bit MCU, and program and data Flash/EE memory on asingle chip.The ADuC845 includes two (primary and auxiliary) 24-bit ?-?ADCs with internal buffering and PGA on the primary ADC.The ADuC847 includes the same primary ADC as the ADuC845(auxiliary ADC removed). The ADuC848 is a 16-bit ADCversion of the ADuC847.The ADCs incorporate flexible input multiplexing, a temperaturesensor (ADuC845 only), and a PGA (primary ADC only)allowing direct measurement of low-level signals. The ADCsinclude on-chip digital filtering and programmable output datarates that are intended for measuring wide dynamic range andlow frequency signals, such as those in weigh scale, strain gage,pressure transducer, or temperature measurement applications.The devices operate from a 32 kHz crystal with an on-chip PLLgenerating a high frequency clock of 12.58 MHz. This clock isrouted through a programmable clock divider from which theMCU core clock operating frequency is generated. The microcontrollercore is an optimized single-cycle 8052 offering up to12.58 MIPs performance while maintaining 8051 instruction setcompatibility.The available nonvolatile Flash/EE program memory optionsare 62 kbytes, 32 kbytes, and 8 kbytes. 4 kbytes of nonvolatileFlash/EE data memory and 2304 bytes of data RAM are alsoprovided on-chip. The program memory can be configured asdata memory to give up to 60 kbytes of NV data memory indata logging applications.On-chip factory firmware supports in-circuit serial downloadand debug modes (via UART), as well as single-pin emulationmode via the EA pin. The ADuC845, ADuC847, and ADuC848are supported by the QuickStart? development system featuringlow cost software and hardware development tools.Applications Multichannel sensor monitoring Industrial/environmental instrumentation Weigh scales, pressure sensors, temperature monitoring Portable instrumentation, battery-powered systems Data logging, precision system monitoring