The AD1940 /?AD1941 are a complete 28-bit, single-chip, multi-channel audio SigmaDSP? for equalization, multiband dynamic processing, delay compensation, speaker compensation, and image enhancement. These algorithms can be used to compen-sate for the real world limitations of speakers, amplifiers, and listening environments, resulting in a dramatic improvement of perceived audio quality.The signal processing used in the AD1940 / AD1941 is comparable to that found in high end studio equipment. Most of the processing is done in full, 56-bit double-precision mode, resulting in very good, low level signal performance and the absence of limit cycles or idle tones. The dynamics processor uses a sophisticated, multiple-breakpoint algorithm often found in high end broadcast compressors. The AD1940 / AD1941 are a fully programmable DSP. Easy to use software allows the user to graphically configure a custom signal processing flow using blocks such as biquad filters, dynamics processors, and surround sound processors. An extensive control port allows click-free parameter updates, along with readback capability from any point in the algorithm flow.The AD1940 / AD1941?s digital input and output ports allow a glueless connection to ADCs and DACs by multiple, 2-channel serial data streams or TDM data streams. When in TDM mode, the AD1940 / AD1941 can input 8 or 16 channels of serial data, and can output 8 or 16 channels of serial data. The input and output port configurations can be individually set. The AD1940 is controlled by a 4-wire SPI? port; the AD1941 is controlled by a 2-wire I2C? bus. Other than the control interface, the functions of the two parts are identical. APPLICATIONS Automotive sound systems Digital televisions Home theater systems (Dolby digital/DTS postprocessor) Multichannel audio systems Mini-component stereos Multimedia audio Digital speaker crossover Musical instruments In-seat sound systems (aircrafts/motor coaches)

The AD2S1210 is a complete 10-bit to 16-bit resolution tracking resolver-to-digital converter, integrating an on-board programmable sinusoidal oscillator that provides sine wave excitation for resolvers.The converter accepts 3.15 V p-p ? 27% input signals, in the range of 2 kHz to 20 kHz on the sine and cosine inputs. A Type II servo loop is employed to track the inputs and convert the input sine and cosine information into a digital representation of the input angle and velocity. The maximum tracking rate is 3125 rps.The AD2S1210WDSTZ and the AD2S1210WDSTZRL7 models have been approved by an independent accredited body for use in Automotive Safety Integrity Level B rated applications according to ISO 26262. Contact your local Analog Devices, Inc., sales office to obtain a copy of the safety manual and ASIL B safety assessment certificate. PRODUCT HIGHLIGHTS Ratiometric tracking conversion. The Type II tracking loop provides continuous output position data without conversion delay. It also provides noise immunity and tolerance of harmonic distortion on the reference and input signals. System fault detection. A fault detection circuit can sense loss of resolver signals, out-of-range input signals, input signal mismatch, or loss of position tracking. The fault detection threshold levels can be individually programmed by the user for optimization within a particular application. Input signal range. The sine and cosine inputs can accept differential input voltages of 3.15 V p-p ? 27%. Programmable excitation frequency. Excitation frequency is easily programmable to a number of standard frequencies between 2 kHz and 20 kHz. Triple format position data. Absolute 10-bit to 16-bit angular position data is accessed via either a 16-bit parallel port or a 4-wire serial interface. Incremental encoder emulation is in standard A-quad-B format with direction output available. Digital velocity output. 10-bit to 16-bit signed digital velocity accessed via either a 16-bit parallel port or a 4-wire serial interface. APPLICATIONS DC and ac servo motor control Encoder emulation Electric power steering Electric vehicles Integrated starter generators/alternators Automotive motion sensing and control

The AD3542R is a low drift, dual channel, ultra-fast, 16-bit accuracy, voltage output digital-to-analog converter (DAC) that can be configured in multiple voltage span ranges. The AD3542R operates with a fixed 2.5 V reference.The device incorporates three drift compensating feedback resistors for the internal transimpedance amplifier (TIA) that scales the output voltage. Offset and gain scaling registers allow for generation of multiple output span ranges, such as 0 V to 2.5 V, 0 V to 5 V, 0 V to 10 V, ?5 V to +5 V, and ?2.5 V to +7.5 V.The DAC can operate in fast mode for maximum speed or precision mode for maximum accuracy.The serial peripheral interface (SPI) can be configured in single SPI (classic SPI) mode, dual SPI mode and synchronous dual SPI mode with single date rate (SDR) or double data rate (DDR), with logical levels from 1.2 V to 1.8 V.To improve device robustness, cyclic redundancy check (CRC) can be enabled. Multiple error checkers have also been integrated to detect VREF failures or memory map corruption.The AD3542R is specified over the extended industrial temperature range (?40?C to +105?C).APPLICATIONS Instrumentation Hardware in the loop Process control equipment Medical devices Automated test equipment Data acquisition system Programmable voltage sources Optical communications

The AD5024 / AD5044 / AD5064 are low power, quad 12-/14-/ 16-bit buffered voltage output?nanoDAC? DACs that offer relative accuracy specifications of 1 LSB INL and 1 LSB DNL with individual reference pins and can operate from a single 4.5 V to 5.5 V supply. The AD5024 / AD5044 / AD5064 parts also offer a differential accuracy specification of ?1 LSB. The parts use a versatile 3-wire, low power Schmitt trigger serial interface that operates at clock rates up to 50 MHz and is compatible with standard SPI, QSPI?, MICROWIRE?, and DSP interface standards. Integrated reference buffers and output amplifiers are also provided on-chip. The AD5024 / AD5044 / AD5064 / AD5064-1 incorporate a power-on reset circuit that ensures the DAC output powers up to zero scale or midscale and remains there until a valid write takes place to the device. The AD5024 / AD5044 / AD5064 / AD5064-1 contain a power-down feature that reduces the current consumption of the device to typically 400 nA at 5 V and provides software selectable output loads while in power-down mode. Total unadjusted error for the parts is <2 mV.Product Highlights Quad channel available in 16-lead TSSOP package. 16-bit accurate, 1 LSB INL. Low glitch on power-up. High speed serial interface with clock speeds up to 50 MHz. Reset to known output voltage (zero scale or midscale).Applications Process control Data acquisition systems Portable battery-powered instruments Digital gain and offset adjustment Programmable voltage and current sources Programmable attenuators

The AD5291 and AD5292 are single-channel, 256-/1024-position digital potentiometers that combine industry leading variable resistor performance with nonvolatile memory (NVM) in a compact package. These devices are capable of operating across a wide voltage range, supporting both dual supply operation?at ?10.5 V to ?16.5 V and single supply operation at +21 V to +33 V, while ensuring less than 1% end-to-end resistor tolerance error and offering 20-time programmable (20-TP) memory.The guaranteed industry leading low resistor tolerance error?feature simplifies open-loop applications as well as precision?calibration and tolerance matching applications.The AD5291 and AD5292 device wiper settings are controllable?through the SPI digital interface. Unlimited adjustments are?allowed before programming the resistance value into the 20-TP memory. The AD5291 and AD5292 do not require any?external voltage supply to facilitate fuse blow, and there are 20 opportunities for permanent programming. During 20-TP activation, a permanent blow fuse command freezes the wiper?position (analogous to placing epoxy on a mechanical trimmer).The AD5291 and AD5292 are available in a compact 14-lead?TSSOP package. The part is guaranteed to operate over the?extended industrial temperature range of ?40?C to +105?C.APPLICATIONS Mechanical potentiometer replacement Instrumentation: gain and offset adjustment Programmable voltage-to-current conversion Programmable filters, delays, and time constants Programmable power supply Low resolution DAC replacement Sensor calibration

The AD5303?/ AD5313?/ AD5323 are dual 8-/10-/12-bit buffered voltage output DACs in a 16-lead TSSOP package that operate from a single 2.5 V to 5.5 V supply, consuming 230 ?A at 3 V. Their on-chip output amplifiers allow the outputs to swing rail-to-rail with a slew rate of 0.7 V/?s. The AD5313 / AD5323 utilize a versatile 3-wire?serial interface that operates at clock rates up to 30 MHz and is?compatible with standard SPI, QSPI?, MICROWIRE?, and DSP?interface standards The references for the two DACs are derived from two reference pins (one per DAC). These reference inputs may be configured as buffered or unbuffered inputs. The parts incorporate a power-on reset circuit, which ensures that the DAC outputs power up to 0 V and remain there until a valid write to the device takes place. There is also an asynchronous active low CLR pin that clears both DACs to 0 V. The outputs of both DACs may be updated simultaneously using the asynchronous LDAC input. The parts contain a power-down feature that reduces the current consumption of the devices to 200 nA at 5 V (50 nA at 3 V) and provides software-selectable output loads while in power-down mode. The parts may also be used in daisy-chaining applications using the SDO pin.The low power consumption of these parts in normal operation makes them ideally suited to portable battery-operated equipment. The power consumption is 1.5 mW at 5 V and 0.7 mW at 3 V, reducing to 1 ?W in power-down mode.APPLICATIONS Portable battery-powered instruments Digital gain and offset adjustment Programmable voltage and current sources Programmable attenuators

The AD5412/AD5422 are low cost, precision, fully integrated12-/16-bit digital-to-analog converters (DAC) offering a programmable current source and programmable voltage output designed to meet the requirements of industrial process control applications.The output current range is programmable at 4 mA to 20 mA, 0 mA to 20 mA, or an overrange function of 0 mA to 24 mA.The LFCSP version of this product has a CAP2 pin so that the HART signals can be coupled onto the current output of the AD5412/AD5422.Voltage output is provided from a separate pin that can be configured to provide 0 V to 5 V, 0 V to 10 V, ?5 V, or ?10 V output ranges; an overrange of 10% is available on all ranges.Analog outputs are short and open-circuit protected and can drive capacitive loads of 1 ?F.The device operates with an AVDD power supply range from 10.8 V to 40 V. Current loop compliance voltage is 0 V to AVDD ? 2.5 V.The flexible serial interface is SPI- and MICROWIRE?-compatible and can be operated in 3-wire mode to minimize the digital isolation required in isolated applications.The device also includes a power-on-reset function, ensuring that the device powers up in a known state. The part also includes an asynchronous clear pin (CLEAR) that sets the outputs to zero-scale/midscale voltage output or the low end of the selected current range.The total output error is typically ?0.01% in current mode and ?0.01% in voltage mode.Applications Process controls Actuator controls PLC HART network connectivity (LFCSP package only)

The AD5512A?/ AD5542A are single, 12-/16-bit, serial input, unbuffered voltage output digital-to-analog converters (DAC) that operate from a single 2.7 V to 5.5 V supply. The DAC output range extends from 0 V to VREF?and is guaranteed monotonic, providing 1 LSB INL accuracy at 16 bits without adjustment over the full specified temperature range of ?40?C to +85?C (AD5542A) or ?40?C to +125?C (AD5512A).Offering unbuffered outputs, the AD5512A / AD5542A achieve a 1 ?s settling time with low offset errors ideal for high speed open loop control.The AD5512A / AD5542A incorporate a bipolar mode of operation that generates a ?VREF?output swing. The AD5512A / AD5542A also include Kelvin sense connections for the reference and analog ground pins to reduce layout sensitivity.The AD5512A / AD5542A are available in a 16-lead LFCSP with the AD5542A also available in a 10-lead LFCSP and a 16-lead TSSOP. The AD5512A / AD5542A use a versatile 3-wire interface that is compatible with 50 MHz SPI, QSPI?, MICROWIRE?, and DSP interface standards.APPLICATIONS Automatic test equipment Precision Source-measure Instruments Data Acquisition Systems Medical and aerospace Instrumentation Communications equipmentPRODUCT HIGHLIGHTS 16-bit performance without adjustment. 2.7 V to 5.5 V single supply operation. Low 11.8 nV/?Hz noise spectral density. Low 0.05 ppm/?C temperature drift. 3 mm ? 3 mm LFCSP and TSSOP packaging.

The AD5546 /?AD5556 are precision 16-/14-bit, multiplying, low power, current output, parallel input D/A converters. They operate from a single 2.7 V to 5.5 V supply with ?10 V multiplying references for 4-quadrant outputs. Built-in 4-quadrant resistors facilitate the resistance matching and temperaturetracking that minimize the number of components needed for multiquadrant applications. The feedback resistor (RFB) simplifies the I-V conversion with an external buffer. The AD5546/AD5556 are packaged in compact TSSOP-28 packages with operating temperatures from ?40?C to +125?C.APPLICATIONS Automatic test equipment Instrumentation Digitally controlled calibration Digital waveform generation?

The AD5758 is a single-channel, voltage and current output digital-to-analog converter (DAC) that operates with a power supply range from ?33 V (minimum) on AVSS to +33 V (maximum) on AVDD1 with a maximum operating voltage between the two rails of 60 V. On-chip dynamic power control (DPC) minimizes package power dissipation, which is achieved by regulating the supply voltage (VDPC+) to the VIOUT output driver circuitry from 5 V to 27 V using a buck dc-to-dc converter, optimized for minimum on-chip power dissipation. The CHART pin enables a HART? signal to be coupled onto the current output.The device uses a versatile 4-wire serial peripheral interface (SPI) that operates at clock rates of up to 50 MHz and is compatible with standard SPI, QSPI?, MICROWIRE?, DSP, and microcontroller interface standards. The interface also features an optional SPI cyclic redundancy check (CRC) and a watchdog timer (WDT). The AD5758 offers improved diagnostic features from its predecessors, such as an integrated 12-bit diagnostic analog-to-digital converter (ADC). Additional robustness is provided by the inclusion of a line protector on the VIOUT, +VSENSE, and ?VSENSE pins. When used with its companion power management unit (PMU)/isolator (ADP1031), the AD5758 is capable of enabling customers to develop an eight channel to channel isolated analog output module with less than 2 W power dissipation, while meeting CISPR 11 Class B. Product Highlights DPC, using an integrated buck dc-to-dc converter for thermal management. When used with the ADP1031, the AD5758 enables eight channel to channel isolated outputs at <2 W dissipated power. Range of advanced diagnostic features, including an integrated ADC for high reliability. Highly robust with output protection from miswire events (?38 V). HART compliant.Applications Process control Actuator control Channel isolated analog outputs Programmable logic controller (PLC) and distributed control systems (DCS) applications HART network connectivity