1 Features
• 16-bit SAR ADC family
– ADS9327: 5MSPS/ch
– ADS9326: 3MSPS/ch
• Two differential, simultaneously sampled channels
• Supports 5V and 3.3V analog supply operation
• Excellent DC and AC performance:
– SNR: 93.2dB at 5MSPS
– INL: ±0.25LSB, DNL: ±0.2LSB
• Feature integration:
– Internal reference
– Common-mode voltage output buffer
– Integrated buffer for external reference input
– Simple data average up to 128 samples
– Moving data average up to 8 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

2 Applications
• Absolute optical encoders
• Absolute magnetic encoders
• Servo drive position feedback
• Ultrasound scanners
• Programmable DC power supplies, electronic
loads
• SONAR

3 Description
The ADS932x is a high-speed, dual, simultaneoussampling,
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.