描述 Description

The ADS922x is a family of 16-bit, high-speed, dual-channel, simultaneous-sampling, analog-to-digital converter (ADC) with an integrated driver for the ADC inputs. The integrated ADC driver simplifies external signal-chain that can be optimized for low-power and high-precision. The ADC consumes only 141 mW/ch at 10 MSPS/ch and the power consumption scales with lower sampling rates.The ADS922x uses a serial LVDS (SLVDS) data interface that enables high-speed digital interface while minimizing digital switching noise. The dual-channel ADC data can be read using separate SLVDS outputs per ADC channel or one SLVDS output for both ADC channels.

特性 Features

High-speed sampling rate: 10 MSPS/ch

ADS9228 (preview): 10 MSPS/ch

ADS9227: 5 MSPS/ch



2-channel, simultaneous sampling

Feature integration:

Integrated ADC driver

Integrated precision reference

Common-mode voltage output buffer



High-performance

16-bit no-missing-codes

INL: ±0.3 LSB, DNL: ±0.3 LSB

SNR: 93.5 dB, THD: –120 dB at fIN = 2 kHz



Wide input bandwidth:

ADS9228: 90 MHz (–3 dB)

ADS9227: 45 MHz (–3 dB)



Low-power 141 mW/ch at 10 MSPS/ch

Serial LVDS interface:

SDR and DDR output modes

Synchronous clock and data output



Extended operating range: –40°C to 125°C

6 mm × 6 mmVQFN package