AD7764BRUZ Datasheet

24-Bit, 312 kSPS, 109 dB Σ-Δ ADC with On-Chip Buffers and Serial Interface


The AD7764 is a high performance, 24-bit Σ-Δ analog-to-digital converter (ADC). It combines wide input bandwidth, high speed, and performance of 109 dB dynamic range at a 312 kHz output data rate. With excellent dc specifications, the converter is ideal for high speed data acquisition of ac signals where dc
data is also required.

High performance 24-bit ∑-∆ ADC
115 dB dynamic range at 78 kHz output data rate
109 dB dynamic range at 312 kHz output data rate
312 kHz maximum fully filtered output word rate
Pin-selectable oversampling rate (64×, 128×, and 256×)
Low power mode
Flexible SPI
Fully differential modulator input
On-chip differential amplifier for signal buffering
On-chip reference buffer
Full band low-pass finite impulse response (FIR) filter
Overrange alert pin
Digital gain correction registers
Power-down mode
Synchronization of multiple devices via SYNC pin
Daisy chaining

Data acquisition systems
Vibration analysis



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