AD7713
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AD7713

CMOS, Low Power 24-Bit Sigma-Delta, Signal Conditioning ADC with Matched RTD Current Sources

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Info: : PRODUCTION tooltip
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Part Details
Part Models 3
1ku List Price Starting From $42.49
Features
  • Charge Balancing ADC
    24 Bits No Missing Codes
    ±0.0015% Nonlinearity
  • Low-Pass Filter with Programmable Filter Cutoffs
  • Ability to Read/Write Calibration Coefficients
  • Bidirectional Microcontroller Serial Interface
  • 3-Channel Programmable Gain Front End
    Gains from 1 to 128
    2 Differential Inputs
    1 Single-Ended High Voltage Input
  • Single-Supply Operation
  • Low Power (3.5 mW typ) with Power-Down Mode (150 µW typ)
Additional Details
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The AD7713 is a complete analog front end for low frequency measurement applications. The device accepts low level signals directly from a transducer or high level signals (4 × VREF ) and outputs a serial digital word. It employs a sigma-delta conversion technique to realize up to 24 bits of no missing codes performance. The input signal is applied to a proprietary programmable gain front end based around an analog modulator. The modulator output is processed by an on-chip digital filter. The first notch of this digital filter can be programmed via the on-chip control register allowing adjustment of the filter cutoff and settling time.

The part features two differential analog inputs and one single-ended high level analog input as well as a differential reference input. It can be operated from a single supply (AVDD and DVDD at +5 V). The part provides two current sources which can be used to provide excitation in three-wire and four-wire RTD configurations. The AD7713 thus performs all signal conditioning and conversion for a single, dual or three-channel system.

The AD7713 is ideal for use in smart, microcontroller-based systems. Gain settings, signal polarity and RTD current control can be configured in software using the bidirectional serial port. The AD7713 contains self-calibration, system calibration and background calibration options and also allows the user to read and to write the on-chip calibration registers.

CMOS construction ensures low power dissipation and a hardware programmable power-down mode reduces the standby power consumption to only 150 µW typical. The part is available in a 24-pin, 0.3 inch wide, plastic and hermetic dual-in-line package (DIP) as well as a 24-lead small outline (SOIC) package.

Part Models 3
1ku List Price Starting From $42.49

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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Product Lifecycle

PCN

Mar 7, 2019

- 19_0046

Assembly Transfer of 18,20,24,28 Lead PDIP to Cirtek

Aug 19, 2009

- 07_0024

Package Material Changes for SOT23, MiniSO, MQFP, PDIP, PLCC, SOIC (narrow and wide body), SSOP, TSSOP and TSSOP exposed pad

Feb 7, 2011

- 10_0003

Halogen Free Material Change for SOIC Wide Body Products Assembled at Amkor

AD7713ARZ

PRODUCTION

AD7713ARZ-REEL

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Mar 7, 2019

- 19_0046

arrow down

Assembly Transfer of 18,20,24,28 Lead PDIP to Cirtek

Aug 19, 2009

- 07_0024

arrow down

Package Material Changes for SOT23, MiniSO, MQFP, PDIP, PLCC, SOIC (narrow and wide body), SSOP, TSSOP and TSSOP exposed pad

Feb 7, 2011

- 10_0003

arrow down

Halogen Free Material Change for SOIC Wide Body Products Assembled at Amkor

AD7713ARZ

PRODUCTION

AD7713ARZ-REEL

PRODUCTION

Tools & Simulations

Tools & Simulations 1

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