1 Features
• High-speed and low-power:
– ADS9119: 20MSPS, 274mW
– ADS9118: 10MSPS, 83mW
– ADS9117: 5MSPS, 59mW
• Feature integration:
– Integrated ADC driver
– Integrated precision reference
– Common-mode voltage output buffer
• High performance:
– 18-bit no missing codes
– INL: ±0.8LSB, DNL: ±0.4LSB
– SNR: 95.5dB
• Wide input bandwidth:
– ADS9119 and ADS9118: 90MHz (–3dB)
– ADS9117: 45MHz (–3dB)
• 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 ADS911x is a family of 18-bit, high-speed,
analog-to-digital converters (ADCs) 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 ADS911x uses a serial LVDS (SLVDS)
data interface that enables high-speed digital
communication 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.