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AD7691-EP - 250 kSPS PulSAR Differential ADC

Description

The AD7691-EP is an 18-bit, charge redistribution, successive approximation, analog-to-digital converter (ADC) that operates from a single power supply, VDD, between 2.3 V and 5 V.

Features

  • 18-bit resolution with no missing codes Throughput: 250 kSPS INL ±0.75 LSB typical ±1.5 LSB minimum/maximum at.
  • 40°C to +85°C.
  • 2.7 LSB/+2 LSB minimum/maximum at.
  • 55°C to +105°C Dynamic range: 102 dB typical Oversampled dynamic range: 125 dB at 1 kSPS Noise-free code resolution: 20 bits at 1 kSPS Effective resolution: 22.7 bits at 1 kSPS SINAD: 101 dB typical at fIN = 1 kHz, VREF = 5 V THD:.
  • 125 dB typical at fIN = 1 kHz, VREF = 5 V True differential analog input r.

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Datasheet preview – AD7691-EP

Datasheet Details

Part number AD7691-EP
Manufacturer Analog Devices
File Size 433.56 KB
Description 250 kSPS PulSAR Differential ADC
Datasheet download datasheet AD7691-EP Datasheet
Additional preview pages of the AD7691-EP datasheet.

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Full PDF Text Transcription

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Enhanced Product FEATURES 18-bit resolution with no missing codes Throughput: 250 kSPS INL ±0.75 LSB typical ±1.5 LSB minimum/maximum at −40°C to +85°C −2.7 LSB/+2 LSB minimum/maximum at −55°C to +105°C Dynamic range: 102 dB typical Oversampled dynamic range: 125 dB at 1 kSPS Noise-free code resolution: 20 bits at 1 kSPS Effective resolution: 22.7 bits at 1 kSPS SINAD: 101 dB typical at fIN = 1 kHz, VREF = 5 V THD: −125 dB typical at fIN = 1 kHz, VREF = 5 V True differential analog input range: ±VREF 0 V to VREF with VREF up to VDD on both inputs No pipeline delay Single-supply 2.3 V to 5 V operation with 1.8 V/2.5 V/3 V/5 V logic interface Serial interface SPI-/QSPI™-/MICROWIRE™-/DSP-compatible Ability to daisy-chain multiple ADCs Optional busy indicator feature Power dissipation 1.
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