AD7793
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AD7793

3-Channel, Low Noise, Low Power, 24-Bit Sigma Delta ADC with On-Chip In-Amp and Reference

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 2
1ku List Price Starting From $7.19
Features
  • Up to 23 bits effective resolution
  • RMS noise
  • 40 nV @ 4.17 Hz
  • 85 nV @ 16.7 Hz
  • Current: 400 μA typical
  • Power-down: 1 μA maximum
  • Update rate: 4.17 Hz to 470 Hz
  • 3 differential inputs
Additional Details
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The AD7792/AD7793 are low power, low noise, complete analog front ends for high precision measurement applications. The AD7792/AD7793 contain a low noise 16-/24-bit Σ-Δ ADC with three differential analog inputs. The on-chip, low noise instrumentation amplifier means that signals of small amplitude can be interfaced directly to the ADC. With a gain setting of 64, the rms noise is 40 nV when the update rate equals 4.17 Hz.

The devices contain a precision low noise, low drift internal band gap reference and can accept an external differential reference. Other on-chip features include programmable excitation current sources, burnout currents, and a bias voltage generator. The bias voltage generator sets the common-mode voltage of a channel to AVDD/2

The devices can be operated with either the internal clock or an external clock. The output data rate from the parts is software-programmable and can be varied from 4.17 Hz to 470 Hz.

The parts operate with a power supply from 2.7 V to 5.25 V. They consume a current of 400 μA typical and are housed in a 16-lead TSSOP package.

Applications

  • Thermocouple measurements
  • RTD measurements
  • Thermistor measurements
  • Gas analysis
  • Industrial process control
  • Instrumentation
  • Portable instrumentation
  • Blood analysis
  • Smart transmitters
  • Liquid/gas chromatography
  • 6-digit DVM
Part Models 2
1ku List Price Starting From $7.19

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
AD7793BRUZ
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AD7793BRUZ-REEL
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Part Models

Product Lifecycle

PCN

Feb 2, 2024

- 23_0143

Qualification of an Alternate Wafer Fab Site for 0.5um TSMC CMOS Process 

Jan 20, 2012

- 11_0218

Halogen Free Material Change for Certain TSSOP Products at Carsem

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Feb 2, 2024

- 23_0143

arrow down

Qualification of an Alternate Wafer Fab Site for 0.5um TSMC CMOS Process 

Jan 20, 2012

- 11_0218

arrow down

Halogen Free Material Change for Certain TSSOP Products at Carsem

Software & Part Ecosystem

Software & Part Ecosystem

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Evaluation Kit

Evaluation Kits 1

EVAL-AD7793

AD7793 Evaluation Board

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EVAL-AD7793

AD7793 Evaluation Board

AD7793 Evaluation Board

Product Detail

The EVAL-AD7793EBZ is a fully featured evaluation Board for the AD7793. The evaluation board can be connected to a PC via a standard USB interface. Software is provided enabling the user to perform detailed analysis of the ADC's performance.


Please note: This Evaluation software does not run on Windows 8 or Windows 10 (USB driver is non-compliant with OS >Windows 7).

Reference Designs

Reference Designs 4

pH Sensor Circuit

Isolated Low Power pH Monitor with Temperature Compensation

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CN0326

Isolated Low Power pH Monitor with Temperature Compensation

CN0326

Circuits from the lab

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Isolated Low Power pH Monitor with Temperature Compensation

Features and Benefits

  • 0.5% Accuracy
  • Low power
  • Temperature compensation
  • Completely isolated
View Detailed Reference Design external link
Thermocouple Measurement System with Cold Junction Compensation

Thermocouple Temperature Measurement System with Less Than 500 μA Current Drain

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CN0206

Thermocouple Temperature Measurement System with Less Than 500 μA Current Drain

CN0206

Circuits from the lab

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Thermocouple Temperature Measurement System with Less Than 500 μA Current Drain

Features and Benefits

  • Typical temperature range of -200 C to +400 C
  • T-type thermocouple measurement system
  • Low power 500uA max, and low system noise of 0.2 degrees
  • Single chip solution with programmable gain and cold junction compensation
  • High performance and accuracy
View Detailed Reference Design external link
Multichannel Thermocouple Measurement System

3-Channel Thermocouple Temperature Measurement System with 0.25 ° C Accuracy

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CN0172

3-Channel Thermocouple Temperature Measurement System with 0.25 ° C Accuracy

CN0172

Circuits from the lab

tooltip Info:Circuits from the lab
3-Channel Thermocouple Temperature Measurement System with 0.25 ° C Accuracy

Features and Benefits

  • 3 channel K-type thermocouple measurement system
  • Typical temperature range of -200 C to +1200 C
  • Highly accurate temperature measurement to 0.25 degrees
  • 16-bit digital temperature sensor used for cold junction compensation
View Detailed Reference Design external link
Differential Bridge Type Transducer Monitor with Temperature Compensation

Low Power, Temperature Compensated Bridge Signal Conditioner and Driver

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