FEATURES

► Oversampled successive approximation (SAR) architecture

► High performance ac and dc accuracy, low power

► 115.5 dB dynamic range, 32 kSPS (AD7767-2)

► 112.5 dB dynamic range, 64 kSPS (AD7767-1)

► 109.5 dB dynamic range, 128 kSPS (AD7767)

► −118 dB THD

► Exceptionally low power

► 8.5 mW, 32 kSPS (AD7767-2)

► 10.5 mW, 64 kSPS (AD7767-1)

► 15 mW, 128 kSPS (AD7767)

► High dc accuracy

► 24 bits, no missing codes (NMC)

► INL: ±3 ppm (typical), ±7.6 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

and 5 V reference

► Flexible interfacing options

► Synchronization of multiple devices

► Daisy-chain capability

► Power-down function

► Temperature range: −40°C to +105°C

► Available in 4.4 mm × 5 mm, 16-lead TSSOP

APPLICATIONS

► Low power PCI/USB data acquisition systems

► Low power wireless acquisition systems

► Vibration analysis

► Instrumentation

► High precision medical acquisition