1 Features
• High-speed sampling rate: 20MSPS/ch
– ADS9229: 20MSPS/ch, 230mW/ch
– ADS9228: 10MSPS/ch, 146mW/ch
– ADS9227: 5MSPS/ch, 95mW/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: ±0.3LSB, DNL: ±0.3LSB
– SNR: 93.9dB
• Wide input bandwidth (–3dB):
– ADS9229 and ADS9228: 90MHz
– ADS9227: 45MHz
• Serial LVDS interface:
– SDR and DDR output modes
– Synchronous clock and data output
• Extended operating range: –40°C to +125°C

2 Applications
• Power analyzers
• Source measurement units (SMU)
• Marine equipment
• Servo drive position feedback
• DC power supplies, AC sources, electronic loads

3 Description
The ADS922x is a family of 16-bit, high-speed, dualchannel,
simultaneous-sampling, analog-to-digital
converter (ADC) with an integrated driver for the
ADC inputs. The integrated ADC driver simplifies
the signal chain, reduces power consumption for
precision applications, and supports high-frequency
signals beyond 1MHz. By not requiring an external
decoupling capacitor, the integrated ADC reference
buffer is optimized for wide bandwidth applications.
The ADS922x uses a serial LVDS (SLVDS) data
interface that enables high-speed digital interface
while minimizing digital switching noise. Read the
dual-channel ADC data using separate SLVDS
outputs per ADC channel or one SLVDS output for
both ADC channels.