24-Bit ADC
Data Sheet
24-Bit, 625 kSPS, 109 dB Sigma-Delta ADC with On-Chip Buffers, Serial Interface
AD7763
FEATURES
120 dB dyna...
Description
Data Sheet
24-Bit, 625 kSPS, 109 dB Sigma-Delta ADC with On-Chip Buffers, Serial Interface
AD7763
FEATURES
120 dB dynamic range at 78 kHz output data rate 109 dB dynamic range at 625 kHz output data rate 112 dB SNR at 78 kHz output data rate 107 dB SNR at 625 kHz output data rate 625 kHz maximum fully filtered output word rate Programmable oversampling rate (32× to 256×) Flexible serial interface Fully differential modulator input On-chip differential amplifier for signal buffering Low-pass finite impulse response (FIR) filter with default
or user-programmable coefficients Overrange alert bit Digital offset and gain correction registers Low power and power-down modes Synchronization of multiple devices via SYNC pin I2S interface mode
APPLICATIONS
Data acquisition systems Vibration analysis Instrumentation
FUNCTIONAL BLOCK DIAGRAM
VIN– VIN+
DIFF
VREF+ REFGND
BUF
MCLK MCLKGND
SYNC RESET SH2:0
ADR2:0 CDIV
AD7763
CONTROL LOGIC I/O
OFFSET AND GAIN REGISTERS
MULTIBIT -
MOD...
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