Rev. PrC

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FEATURES

8 Channel 24-Bit Simultaneous Sampling ADCs

Sample Rate Converter (SRC) for coherent sampling

Adjustable Phase Synchronization

PGA per Channel (gain 1, 2, 4, 8)

Low Input Bias Current: 6nA

Single Ended or True Differential Inputs

128ksps Output Data Rate/per channel

Internal 2.5V reference

Optimize Power Dissipation & Performance

Two Power Modes:

High Resolution Mode

Low Power Mode

Low Latency Sinc3 and Sinc5 Filter Paths

Low Resolution SAR ADC for System and Chip Diagnostics

POWER SUPPLY

Bipolar (±1.65V Supply) or Unipolar (3.3V Supply) Supply

Digital/IO Supply 1.8V to 3.6V

Performance Temperature range: –40°C to +105°C

Functional Temperature range: –40°C to +125°C

PERFORMANCE

Combined AC & DC Performance

112dB SNR/Dynamic Range at 8 kSPS

-108dB THD

±15ppm INL, ±250 uV Offset Error, ±0.1% Gain Error

±5 ppm/°C typ Internal Reference TempCo

APPLICATIONS

Power quality and Measurement Applications

General Purpose Data Acquisition Applications

Industrial Process Control Applications

FUNCTIONAL BLOCK DIAGRAM

Figure 1 AD7771 Functional Block Diagram

8-Ch, 24-Bit Simultaneous Sampling ADC

Preliminary Technical Data

AD7771

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