DESCRIPTION
●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 (SPS), which allow synchronous sampling of four and eight channels. These devices use identical packages, and are also compatible with the
●high-performance 24-bit ADS1274 and ADS1278, permitting drop-in upgrades.
●FEATURES
●• 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 Drift
●• Digital Filter:
● Linear Phase Response
● Passband Ripple: ±0.005dB
● Stop Band Attenuation: 100dB
●• Selectable SPI™ or Frame Sync Serial Interface
●• Simple Pin-Driven Control
●• Low Sampling Aperture Error
●• Specified from –40°C to +105°C
●• Analog Supply: 5V
●• I/O Supply: 1.8V to 3.3V
●• Digital Core Supply: 1.8V
●Applications
●• 3-Phase Power Monitors
●• Defibrillators and ECG Monitors
●• Coriolis Flow Meters
●• Vibration/Modal Analysis
