16-Bit, 100 kSPS, Serial I/O A/D Converter

The AD977 / AD977A is a high speed, low power 16-bit A/D converter that operates from a single 5 V supply. The AD977A has a throughput rate of 200 kSPS whereas the AD977 has a throughput rate of 100 kSPS. Each part contains a successive approximation, switched capacitor ADC, an internal 2.5 V reference, and a high speed serial interface. The ADC is factory calibrated to minimize all linearity errors. The AD977 / AD977A is specified for full scale bipolar input ranges of ±10 V, ±5 V and ±3.3 V, and unipolar ranges of 0 V to 10 V, 0 V to 5 V and 0 V to 4 V.

* Fast 16-Bit ADC

* 100 kSPS Throughput Rate—AD977* 200 kSPS Throughput Rate—AD977A

* Single 5 V Supply Operation

* Power Dissipation 100 mW Max

* Power-Down Mode 50 µW* Input Ranges:

* Unipolar; 0 V–10 V, 0 V–5 V, and 0 V–4 V

* Bipolar; ±10 V, ±5 V, and ±3.3 V