描述 Description

The ADS932x is a high-speed, dual, simultaneous-sampling, analog-to-digital converter (ADC) with an integrated reference and reference buffer. The ADS932x has excellent AC performance, which makes the device optimum for wide-bandwidth data acquisition (DAQ) systems.

The device supports an SPI-compatible serial interface. This interface makes the ADS932x easy to pair with a diversity of microcontrollers, digital signal processors (DSPs), and field-programmable gate arrays (FPGAs). This device also supports a data averaging feature that provides an AC performance boost in noisy environments.

特性 Features

16-bit SAR ADC family

ADS9327: 5MSPS/ch

ADS9326: 3MSPS/ch



Two fully differential, simultaneously sampled channels

Supports 5V and 3.3V analog supply operation

Excellent DC and AC performance:

SNR: 93dB at 5MSPS

INL: ±1LSB, DNL: ±0.75LSB



Feature integration:

Internal reference

Integrated buffer for external reference input

Simple data average up to 128 samples



Configurable serial interface:

2 serial outputs for each ADC channel

1 serial output for each ADC channel

1 serial output for both ADC channels

Supports daisy-chain functionality



8-bit CRC on serial interface

Extended temperature range: –40°C to +125°C