1 Features

? High-speed, 10-MSPS/ch sampling rate

– ADS9218: 10 MSPS/ch

– ADS9217: 5 MSPS/ch

? 2-channel, simultaneous sampling

? Feature integration:

– Integrated ADC driver

– Integrated precision reference

– Common-mode voltage output buffer

? High-performance

– 18-bit no missing codes

– INL: ±1 LSB, DNL: ±0.75 LSB

– SNR: 95 dB, THD: –115 dB at fIN = 2 kHz

? Wide input bandwidth:

– ADS9218: 90 MHz (–3 dB)

– ADS9217: 45 MHz (–3 dB)

? Low-power 180 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-mm VQFN package

2 Applications

? Power analyzers

? Source measurement units (SMU)

? Marine equipment

? Servo drive position feedback

? DC power supplies, AC sources, electronic loads

3 Description

The ADS921x is an 18-bit, 10-MSPS/ch, dualchannel,

simultaneous-sampling, analog-to-digital

converter (ADC) with an integrated driver for the

ADC inputs. The ADC consumes only 180 mW/ch at

10 MSPS/ch and the power consumption scales with

lower sampling rates.

The ADS921x uses a serial low-voltage differential

signaling (SLVDS) data interface that enables highspeed

digital interface while minimizing digital

switching noise. The device comes in a space-saving,

6-mm × 6-mm, VQFN package.

The ADS921x is specified for the extended

temperature range of –40°C to +125°C.

INFORMATION