Analog Devices, Inc. introduced the industry’s highest speed, high–temperature, 16-bit, A/D converter, which is more than twice as fast as currently available converters and provides error-free operation at temperatures of up to 175 degrees Celsius.
With sample rates up to 600-kSPS, the AD7981 PulSAR A/D converter is ideally suited for applications including wide bandwidth sonic and vibration measurement as well as low power, lower-bandwidth pressure and temperature sensing.
The AD7981 maximizes battery life in harsh environments by scaling power linearly with the sample rate, using only 4.65 mW at a full speed of 600 kSPS and 70 μW at 10 kSPS. The A/D converter features typical performance of +/-0.7-LSB INL and 91-dB SNR enabling a high dynamic range with better accuracy and precision.
This combination addresses critical performance criteria for precision measurement applications in harsh, high-temperature environments such as down-hole oil and gas drilling, as well as industrial and avionics applications.
Features:
－ Extreme high temperature operation Specified temperature range: ?55°C to +175°C
－ 16-bit resolution with no missing codes
－ 600 kSPS throughput with no latency/pipeline delay
－ SNR: 91dB typical @ 1 kHz input frequency
－ THD: ?100dB typical @ 1 kHz input frequency
－ INL: ±2.0 LSB max, DNL: ±0.9 LSB max
－ 2.25mW typical at 600 kSPS (VDD only)
－ 4.65 mW typical at 600kSPS (total)
－ 70 μW typical at 10 kSPS
－ 10-lead 3 mm × 5 mm mono-metallic wire bonding MSOP
－ 0 V to VREF with VREF between 2.4 V to 5.1 V
