DESCRIPTION
●The ADS1271 is a 24-bit, delta-sigma analog-to-digital converter (ADC) with a data rate up to 105kSPS. It offers a unique combination of excellent DC accuracy and outstanding AC performance. The high-order, chopper-stabilized modulator achieves very low drift with
●low in-band noise. The onboard decimation filter suppresses modulator and signal out-of-band noise. The ADS1271 provides a usable signal bandwidth up to 90% of the Nyquist rate with less than 0.005dB of ripple.
●FEATURES
●105kSPS Data Rate
●AC Performance:
● 51kHz Bandwidth
● 109dB SNR (High-Resolution Mode)
● −105dB THD
●DC Accuracy:
● 1.8µV/°C Offset Drift
● 2ppm/°C Gain Drift
●Selectable Operating Modes:
● High-Speed: 105kSPS Data Rate
● High-Resolution: 109dB SNR
● Low-Power: 35mW Dissipation
●Power-Down Control
●Digital Filter:
● Linear Phase Response
● Passband Ripple: ±0.005dB
● Stop Band Attenuation: 100dB
●Internal Offset Calibration On Command
●Selectable SPIor Frame Sync Serial Interface
●Designed for Multichannel Systems:
● Daisy-Chainable Serial Interface
● Easy Synchronization
●Simple Pin-Driven Control
●Specified from −40°C to +105°C
●Analog Supply: 5V
●Digital Supply: 1.8V to 3.3V
●APPLICATIONS
●Vibration/Modal Analysis
●Acoustics
●Dynamic Strain Gauges
●Pressure Sensors
●Test and Measurement
