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AD4112 - Sigma-Delta ADC

General Description

The AD4112 is a low power, low noise, 24-bit, sigma-delta (Σ-Δ) analog-to-digital converter (ADC) that integrates an analog front end (AFE) for fully differential or single-ended, high impedance (≥1 MΩ) bipolar, ±10 V voltage inputs, and 0 mA to 20 mA current inputs.

Key Features

  • Tested for robustness per: IEC61000-4-2, IEC61000-4-3, IEC61000-4-4, IEC61000-4-5, IEC61000-4-6, CISPR 11 24-bit ADC with integrated analog front end Fast and flexible output rate: 1.25 SPS to 31.25 kSPS Channel scan data rate of 6.21 kSPS per channel (161 µs settling) 16 noise free bits at 1 kSPS per channel 85 dB rejection of 50 Hz and 60 Hz at 20 SPS per channel ±10 V inputs, 4 differential or 8 single-ended Pin absolute maximum rating ±50 V Absolute input pin voltage up to ±20 V ≥1 MΩ impeda.

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The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Single Supply, 24-Bit, Sigma-Delta ADC with ±10 V and 0 mA to 20 mA Inputs Data Sheet AD4112 FEATURES Tested for robustness per: IEC61000-4-2, IEC61000-4-3, IEC61000-4-4, IEC61000-4-5, IEC61000-4-6, CISPR 11 24-bit ADC with integrated analog front end Fast and flexible output rate: 1.25 SPS to 31.25 kSPS Channel scan data rate of 6.21 kSPS per channel (161 µs settling) 16 noise free bits at 1 kSPS per channel 85 dB rejection of 50 Hz and 60 Hz at 20 SPS per channel ±10 V inputs, 4 differential or 8 single-ended Pin absolute maximum rating ±50 V Absolute input pin voltage up to ±20 V ≥1 MΩ impedance ±0.06% accuracy at 25°C 0 mA to 20 mA inputs, 4 single-ended Pin absolute maximum rating ±50 mA Input range from −0.5 mA to +24 mA 60 Ω impedance ±0.08% accuracy at 25°C On-chip 2.