Texas Instruments ADS9219
The ADS921x is a family of 18-bit, high-speed, dualchannel, simultaneous-sampling, 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.| Part No. | ADS9219 |
|---|---|
| Datasheet | ADS9219 Download |
| Manufacturer |  Texas Instruments |
| Description | 18-Bit 20MSPS SAR ADC |
| Buy | Stock & Price |
FEATURES
3DESCRIPTION
● High-speed and low-power: – ADS9219: 20MSPS/ch, 230mW/ch – ADS9218: 10MSPS/ch, 146mW/ch – ADS9217: 5MSPS/ch, 95mW/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: ±1LSB, DNL: ±0.75LSB – SNR: 95.5dB and 104.5dB SNR with OSR = 16
● Wide input bandwidth (–3dB): – ADS9219 and ADS9218: 90MHz – ADS9217: 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 The ADS921x 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.
