AD7190
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AD7190

4.8 kHz Ultralow Noise 24-Bit Sigma-Delta ADC with PGA

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Models 3
1ku List Price Starting From $7.48
Features
  • RMS noise: 8.5 nV @ 4.7 Hz (gain = 128)
  • 16 noise free bits @ 2.4 kHz (gain = 128)
  • Up to 22.5 noise free bits (gain = 1)
  • Offset drift: 5 nV/°C
  • Gain drift: 1 ppm/°C
  • Specified drift over time
  • 2 differential/4 pseudo differential input channels
  • Qualified for automotive applications
  • See Data Sheet for Additional Information
Additional Details
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The AD7190 is a low noise, complete analog front end for high precision measurement applications. It contains a low noise, 24-bit sigma-delta (Σ-Δ) analog-to-digital converter (ADC). The on-chip low noise gain stage means that signals of small amplitude can be interfaced directly to the ADC.

The device can be configured to have two differential inputs or four pseudo differential inputs. The on-chip channel sequencer allows several channels to be enabled, and the AD7190 sequentially converts on each enabled channel. This simplifies communication with the part. The on-chip 4.92 MHz clock can be used as the clock source to the ADC or, alternatively, an external clock or crystal can be used. The output data rate from the part can be varied from 4.7 Hz to 4.8 kHz.

The device has two digital filter options. The choice of filter affects the rms noise/noise-free resolution at the programmed output data rate, the settling time, and the 50 Hz/60 Hz rejection. For applications that require all conversions to be settled, the AD7190 includes a zero latency feature.

The part operates with 5 V analog power supply and a digital power supply from 2.7 V to 5.25 V. It consumes a current of 6 mA. It is housed in a 24-lead TSSOP package.

APPLICATIONS

  • Weigh scales
  • Strain gauge transducers
  • Pressure measurement
  • Temperature measurement
  • Chromatography
  • PLC/DCS analog input modules
  • Data acquisition
  • Medical and scientific instrumentation
Part Models 3
1ku List Price Starting From $7.48

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Documentation

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Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
AD7190BRUZ
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AD7190BRUZ-REEL
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AD7190WBRUZ
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Part Models

Product Lifecycle

PCN

May 20, 2024

- 23_0143

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

Aug 10, 2021

- 21_0035

Amkor Philippines as an Alternate Site for TSSOP_4.4

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

May 20, 2024

- 23_0143

arrow down

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

Aug 10, 2021

- 21_0035

arrow down

Amkor Philippines as an Alternate Site for TSSOP_4.4

Jan 20, 2012

- 11_0218

arrow down

Halogen Free Material Change for Certain TSSOP Products at Carsem

Software & Part Ecosystem

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Evaluation Kits 2

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EVAL-AD7190ASDZ

AD7190 Evaluation Board

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EVAL-AD7190ASDZ

AD7190 Evaluation Board

AD7190 Evaluation Board

Features and Benefits

  • Full featured evaluation board for the AD7190
  • PC control in conjunction with the system demonstration platform (EVAL-SDP-CB1Z/EVAL-SDP-CK1Z)
  • PC software for control and data analysis (time and frequency domain)

Product Detail

The EVAL-AD7190ASDZ evaluation kit features the AD7190 which is 4.8 kHz ultralow noise 24-bit sigma-delta (Σ-Δ) ADCs .The on-chip low noise gain stage means that signals of small amplitude can interface directly to the ADC.The internal clock option provides a compact solution for low BW requirements.

The AD7190 ACE Plugin fully configures the AD7190 device register functionality and provides dc time domain analysis in the form of waveform graphs, histograms, and associated noise analysis for ADC performance evaluation.

APPLICATIONS

  • Weigh scales
  • Strain gauge transducers
  • Pressure measurement
  • Temperature measurement
  • Chromatography
  • PLC/DCS analog input modules
  • Data acquisition
  • Medical and scientific instrumentation
reference details image

EVAL-AD7190

OBSOLETE: AD7190 Evaluation Board

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EVAL-AD7190

OBSOLETE: AD7190 Evaluation Board

OBSOLETE: AD7190 Evaluation Board

Product Detail

This evaluation board is obsolete and no longer recommended. The replacement board is the EVAL-AD7190ASDZ.

The EVAL-AD7190EBZ is a fully featured evaluation board for the AD7190. The evaluation board can be operated in standalone mode (either battery-powered or with external power supply) or connected to a PC via a standard USB interface. When operated with a PC, 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).

Tools & Simulations 3

Reference Designs 1

Weigh Scale System Using the AD7190

Precision Weigh Scale Design Using the AD7190 24-Bit Sigma-Delta ADC with Internal PGA

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CN0102

Precision Weigh Scale Design Using the AD7190 24-Bit Sigma-Delta ADC with Internal PGA

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Circuits from the lab

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Precision Weigh Scale Design Using the AD7190 24-Bit Sigma-Delta ADC with Internal PGA

Features and Benefits

  • 24-Bit ADC, handles fast data rates up to 4.8 kHz
  • Integrated PGA allows for wide array of sensors
  • High precision pressure applications
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Design & Integration Tools

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