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Reference Design
ADS1120
SBAS535C – AUGUST 2013 – REVISED FEBRUARY 2017
ADS1120 4-Channel, 2-kSPS, Low-Power, 16-Bit ADC with Integrated PGA and Reference
1 Features
•1 Low Current Consumption: As Low as 120 μA (typ) in Duty-Cycle Mode
• Wide Supply Range: 2.3 V to 5.5 V • Programmable Gain: 1 V/V to 128 V/V • Programmable Data Rates: Up to 2 kSPS • 16-Bit Noise-Free Resolution at 20 SPS • Simultaneous 50-Hz and 60-Hz Rejection at
20 SPS with Single-Cycle Settling Digital Filter • Two Differential or Four Single-Ended Inputs • Dual-Matched Programmable Current Sources:
50 μA to 1.5 mA • Internal 2.048-V Reference: 5 ppm/°C (typ) Drift • Internal 2% Accurate Oscillator • Internal Temperature Sensor:
0.