AD7981HFZ

AD7981 is a 16bit, successive approximation, PulSAR® ADC designed for high temperature operation. The AD7981 is capable of sample rates of up to 600KSPS while maintaining low power consumption from a single power supply, VDD. It is a fast throughput, high accuracy, high temperature, successive approximation register(SAR) ADC, packaged in a small form factor with a versatile serial port interface(SPI). On the CNV rising edge, the AD7981 samples an analogue input, IN+, between 0V and REF with respect to a ground sense, IN-. The reference voltage, REF, is applied externally and can be set independent of the supply voltage, VDD. The SPI-compatible serial interface also features the ability, using the SDI input, to daisy-chain several ADCs on a single, 3-wire bus and provides an optional busy indicator. Typical application includes oil and gas exploration, avionics, heavy industrial, high temperature environments and scientific instrumentation.

• Pseudo differential analogue input range 0 V to VREF with VREF between 2.4V and 5.1V
• Throughput of 600KSPS and zero latency architecture
• 16bit resolution with no missing codes
• INL of ±2.5LSB maximum and DNL of ±0.9LSB maximum
• Dynamic range of 92dB, VREF = 5V and SNR of 91dB at fIN = 1KHz, VREF = 5V
• THD of -102dB at fIN = 1KHz, VREF = 5V and SINAD of 90.5dB at fIN = 1KHz, VREF = 5V
• Single-supply 2.5V operation with 1.8V to 5V logic interface
• Proprietary serial interface SPI-/QSPI-/MICROWIRE-/DSP-compatible
• Daisy-chain multiple ADCs and busy indicator
• 10 lead Ceramic FLATPACK package, extreme high temperature operation range from -55°C to +210°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party