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AD4114 - 24-Bit Sigma-Delta ADC

Description

The AD4114 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 eight fully differential or 16 single-ended, high impedance (≥1 MΩ), bipolar, ±10 V voltage inputs.

Features

  • 24-bit ADC with integrated AFE 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) 17.3 noise free bits at 1007 SPS per channel 120 dB common mode rejection of 50 Hz and 60 Hz at 20 SPS per channel ±10 V inputs, either 8 differential or 16 single-ended VIN pin absolute maximum rating: ±65 V Absolute input pin voltage up to ±20 V Minimum 1 MΩ impedance 0.07% TUE at 25°C On-chip 2.5 V reference ±0.12% initial accuracy at 25°C, ±5.

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Full PDF Text Transcription

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Single Supply, Multichannel, 31.25 kSPS, 24-Bit, Sigma-Delta ADC with ±10 V Inputs Data Sheet AD4114 FEATURES 24-bit ADC with integrated AFE 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) 17.3 noise free bits at 1007 SPS per channel 120 dB common mode rejection of 50 Hz and 60 Hz at 20 SPS per channel ±10 V inputs, either 8 differential or 16 single-ended VIN pin absolute maximum rating: ±65 V Absolute input pin voltage up to ±20 V Minimum 1 MΩ impedance 0.07% TUE at 25°C On-chip 2.5 V reference ±0.12% initial accuracy at 25°C, ±5 ppm/°C (typical) drift Internal or external clock Power supplies AVDD = 3.0 V to 5.5 V IOVDD = 2 V to 5.5 V Total current consumption AVDD + IOVDD (IDD) = 3.
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