GENERAL DESCRIPTION
The AD7938-6 is a 12-bit high speed,low power,successive approximation (SAR) ADC.The partoperates froma single 2.7 V to5.25 V power supplyand features throughputrates up to 625 kSPS.The partcontains a low noise, wide bandwidth, differentialtrack-and-hold amplifierthatcan handle input frequencies upto 50 MHz.

FEATURES
Fast throughput rate:625kSPS
Specified for VDDof 2.7 V to 5.25 V
Low power
  3.6 mW maxat 625 kSPSwith 3 V supplies
  7.5 mW maxat 625 kSPSwith 5 V supplies
8 analog input channels with a sequencer
Software configurable analoginputs
  8-channel single-ended inputs
  4-channel fully differential inputs
  4-channel pseudo-differential inputs
  7-channel pseudo-differential inputs
Accurate on-chip 2.5 V reference
±0.2% max@ 25°C, 25 ppm/°C max
70 dB SINAD at50 kHz input frequency
Nopipeline delays
High speed parallel interface—word/byte modes
Full shutdown mode: 2 µA max
32-leadLFCSP and TQFP package