GENERAL DESCRIPTION
The AD7766/AD7766-1/AD7766-2 are high performance, 24-bit, oversampled SAR analog-to-digital converters (ADCs). The AD7766/AD7766-1/AD7766-2 combine the benefits of a large dynamic range and input bandwidth, consuming 15 mW, 10.5 mW, and 8.5 mW power, respectively, and are contained in a 16-lead TSSOP package.

FEATURES
Oversampled successive approximation (SAR) architecture
High performance ac and dc accuracy, low power
  115.5 dB dynamic range, 32 kSPS (AD7766-2)
  112.5 dB dynamic range, 64 kSPS (AD7766-1)
  109.5 dB dynamic range, 128 kSPS (AD7766)
  −112 dB THD
Exceptionally low power
  8.5 mW, 32 kSPS (AD7766-2)
  10.5 mW, 64 kSPS (AD7766-1)
  15 mW, 128 kSPS (AD7766)
High dc accuracy
  24 bits, no missing codes (NMC)
  INL: ±6 ppm (typical), ±15 ppm (maximum)
Low temperature drift
  Zero error drift: 15 nV/°C
  Gain error drift: 0.4 ppm/°C
On-chip low-pass FIR filter
  Linear phase response
  Pass-band ripple: ±0.005 dB
  Stop-band attenuation: 100 dB
2.5 V supply with 1.8 V/2.5 V/3 V/3.6 V logic interface options
Flexible interfacing options
  Synchronization of multiple devices
  Daisy-chain capability
  Power-down function
Temperature range: −40°C to +105°C

APPLICATIONS
Low power PCI/USB data acquisition systems
Low power wireless acquisition systems
Vibration analysis
Instrumentation
High precision medical acquisition