Description
ADS1174 ADS1178 ADS1174 ADS1178 www.ti.com SBAS373B * OCTOBER 2007 * REVISED SEPTEMBER 2008 Quad/Octal, Simultaneous Sampling, 16-.
The ADS1174 (quad) and ADS1178 (octal) are multiple delta-sigma (ΔΣ) analog-to-digital converters (ADCs) with data rates up to 52k samples-per-second.
Features
* 1
* 234 Simultaneously Sample Four/Eight Channels
* Selectable Operating Modes:
High-Speed: 52kSPS Data Rate, 31mW/ch Low-Power: 10kSPS Data Rate, 7mW/ch
* AC Performance: 25kHz Bandwidth 97dB SNR
* 105dB THD
* DC Performance: 2µV/°C Offset Drift 2ppm/°C Gain Dr
Applications
* 3-Phase Power Monitors
* Defibrillators and ECG Monitors
* Coriolis Flow Meters
* Vibration/Modal Analysis
VREFP VREFN AVDD DVDD IOVDD
Input1 Input2 Input3 Input4
DS
SPI
and
DS
Frame-
DS
Sync
Interface
DS
Four
Digital
Filters
Control Logic
AGND
DGND