AD7981
AD7981 is 600 kSPS PulSAR ADC manufactured by Analog Devices.
Data Sheet
Features
Extreme high temperature operation Specified temperature range
- 55°C to +210°C (10-lead FLATPACK)
- 55°C to +175°C (10-lead MSOP)
High performance Pseudo differential analog input range 0 V to VREF with VREF between 2.4 V and 5.1 V Throughput: 600 k SPS Zero latency architecture 16-bit resolution with no missing codes INL: ±2.5 LSB maximum, DNL: ±0.9 LSB maximum Dynamic range: 92 d B, VREF = 5 V SNR: 91 d B at f IN = 1 k Hz, VREF = 5 V THD:
- 102 d B at f IN = 1 k Hz, VREF = 5 V SINAD: 90.5 d B at f IN = 1 k Hz, VREF = 5 V
Low power dissipation Single-supply 2.5 V operation with 1.8 V to 5 V logic interface 2.25 m W typical at 600 k SPS (VDD only) 4.65 m W typical at 600 k SPS (total) 75 µW typical at 10 k SPS
Proprietary serial interface SPI-/QSPI-/MICROWIRE-/DSP-patible
Daisy-chain multiple ADCs and busy indicator Small footprint
10-lead, 3 mm × 3 mm, monometallic wire bonding MSOP 10-lead, 0.255 inches × 0.255 inches, monometallic wire bonding FLATPACK
APPLICATIONS
Oil and gas exploration Avionics Heavy industrial High temperature environments Scientific instrumentation
1 Protected by U.S. Patent 6,703,961.
Rev. C
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High Temperature, 16-Bit, 600 k SPS Pul SAR ADC AD7981
TYPICAL APPLICATION CIRCUIT
2.5V to 5.0V 2.5V
0V TO VREF
REF VDD VIO
IN+
AD7981 SCK
IN-
1.8V TO 5.0V
3- OR 4-WIRE INTERFACE (SPI, DAISY CHAIN,...
