GENERAL DESCRIPTION
The AD7997/AD7998 are 8-channel, 10- and 12-bit, low power, successive approximation ADCs with an I2C-compatible interface. The parts operate from a single 2.7 V to 5.5 V power supply and feature a 2 µs conversion time. The parts contain an 8-channel multiplexer and track-and-hold amplifier that can handle input frequencies up to 11 MHz.

FEATURES
  10- and 12-bit ADC with fast conversion time: 2 µs typ
  8 single-ended analog input channels
  Specified for VDD of 2.7 V to 5.5 V
  Low power consumption
  Fast throughput rate: up to 188 kSPS
  Sequencer operation
  Automatic cycle mode
  I2C®-compatible serial interface supports standard, fast, and high speed modes
  Out-of-range indicator/alert function
Pin-selectable addressing via AS
Shutdown mode: 1 µA max
Temperature range: −40°C to +85°C
20-lead TSSOP package
See the AD7992 and AD7994 for 2-channel and 4-channel equivalent devices, respectively