ADR444

PRODUCTION

Ultralow Noise, LDO XFET® 4.096V Voltage Reference w/Current Sink and Source

Data Sheet (Rev. G) Product Selection Table
Part Models
6
1ku List Price
Starting From $3.27
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Part Details

  • Ultralow noise (0.1 Hz to 10 Hz)
    • ADR440: 1 μV p-p
    • ADR441: 1.2 μV p-p
    • ADR443: 1.4 μV p-p
    • ADR444: 1.8 μV p-p
    • ADR445: 2.25 μV p-p
  • Superb temperature coefficient
    • A Grade: 10 ppm/°C
    • B Grade: 3 ppm/°C
  • Low dropout operation (supply voltage headroom): 500 mV
  • Input range: (VOUT + 500 mV) to 18 V
  • High output source and sink current
    • +10 mA and −5 mA, respectively
  • Wide temperature range: −40°C to +125°C
ADR444
Ultralow Noise, LDO XFET® 4.096V Voltage Reference w/Current Sink and Source
ADR440-441-443-444-445 Functional Block Diagram ADR440-441-443-444-445 Functional Block Diagram ADR440-441-443-444-445-pc ADR440-441-443-444-445 Pin Configuration
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Documentation

Data Sheet 1

Technical Articles 1

Frequently Asked Question 1

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Hardware Ecosystem

Parts Product Life Cycle Description
Positive Linear Regulators (LDO) 1
LT3040
RECOMMENDED FOR NEW DESIGNS 20V, 200mA, Ultralow Noise, Ultrahigh PSRR Precision DAC/Reference Buffer
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Evaluation Kits

eval board
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EVAL-AD7768

AD7768 Evaluation Board

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Features and Benefits

  • Full featured evaluation board for the AD7768
  • PC control in conjunction with the SDP-H1 System Demonstration Platform (EVAL-SDP-CH1Z)
  • PC software control and data analysis 
  • Time and frequency domain
  • Standalone hardware capability

Product Details

The EVAL-AD7768FMCZ evaluation kit features the AD7768 24-bit, 256 kSPS, analog-to-digital converter (ADC). A 7 V to 9 V external bench top supply is regulated to 5 V and 3.3 V to supply the AD7768 and support components. The EVAL-AD7768FMCZ board connects to the USB port of the PC via a connection to the EVAL-SDP-CH1Z motherboard.

The AD7768 evaluation software fully configures the AD7768 device register functionality and provides dc and ac time domain analysis in the form of waveform graphs, histograms, and associated noise analysis for ADC performance evaluation.

The EVAL-AD7768FMCZ is an evaluation board that allows the user to evaluate the features of the ADC. The user PC software executable controls the AD7768 over a USB cable through the EVAL-SDP-CH1Z System Demonstration Platform (SDP). The AD7768 evaluation software requires PC running Windows® 7 to Windows 10 with a USB 2.0 port.

Full specifications on the AD7768 are available in the product data sheet, which should be consulted in conjunction with this user guide when working with the evaluation board.

eval board
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EVAL-AD7768-4

AD7768-4 Evaluation Board

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Features and Benefits

  • Full featured evaluation board for the AD7768-4
  • PC control in conjunction with the SDP-H1 system demonstration platform (EVAL-SDP-CH1Z)
  • PC software control and data analysis
  • Time and frequency domain
  • Standalone hardware capability

Product Details

The EVAL-AD7768-4FMCZ evaluation kit features the AD7768-4 24-bit, 256 kSPS, analog-to-digital converter (ADC). A 7 V to 9 V external bench top supply is regulated to 5 V and 3.3 V to supply the AD7768-4 and support components. The EVAL-AD7768-4FMCZ board connects to the USB port of the PC via a connection to the EVAL-SDP-CH1Z motherboard.

The AD7768-4 evaluation software fully configures the AD7768-4 device register functionality and provides dc and ac time domain analysis in the form of waveform graphs, histograms, and associated noise analysis for ADC performance evaluation.

The EVAL-AD7768-4FMCZ is an evaluation board that allows the user to evaluate the features of the ADC. The user PC software executable controls the AD7768-4 over a USB cable through the EVAL-SDP-CH1Z system demonstration platform (SDP).

Full specifications on the AD7768-4 are available in the product data sheet, which should be consulted in conjunction with this user guide when working with the evaluation board.

eval board
schematic 10
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EVAL-AD7761

AD7761 Evaluation Board

Buy Now View Details

Features and Benefits

  • Full featured evaluation board for the AD7761
  • PC control in conjunction with the SDP-H1 system demonstration platform (EVAL-SDP-CH1Z)
  • PC software control and data analysis
  • Time and frequency domain
  • Standalone hardware capability

Product Details

The EVAL-AD7761FMCZ evaluation kit features the AD7761 16-bit, 256 kSPS, analog-to-digital converter (ADC). A 7 V to 9 V external bench top supply is regulated to 5 V and 3.3 V to supply the AD7761 and support components. The EVAL-AD7761FMCZ board connects to the USB port of the PC via a connection to the EVAL-SDP-CH1Z motherboard.

The AD7761 evaluation software fully configures the AD7761 device register functionality and provides dc and ac time domain analysis in the form of waveform graphs, histograms, and associated noise analysis for ADC performance evaluation.

The EVAL-AD7761FMCZ is an evaluation board that allows the user to evaluate the features of the ADC. The user PC software executable controls the AD7761 over a USB cable through the EVAL-SDP-CH1Z system demonstration platform (SDP).

Full specifications for the AD7761 are available in the product data sheet, which should be consulted in conjunction with this user guide when working with the evaluation board.
EVAL-AD7768
AD7768 Evaluation Board
EVAL-AD7768FMCZ SDP-H1 evaluation board layout EVAL-AD7768FMCZ Sample Board Configuration EVAL-AD7768FMCZ Sample FFT AD7768 Power THD Combinations
EVAL-AD7768-4
AD7768-4 Evaluation Board
EVAL-AD7768-4FMCZ SDP-H1 evaluation board layout EVAL-AD77648-4 Evaluation software main window AD7768 Power THD Combinations
EVAL-AD7761
AD7761 Evaluation Board
EVAL-AD7761FMCZ - Angle View EVAL-AD7761FMCZ - Bottom View EVAL-AD7761FMCZ - Top View

Reference Designs

Basic Analog Output Circuit for Single Channel
Basic Analog Output Circuit for Single Channel
CN0202 Circuits from the lab

Flexible, High Accuracy, Low Drift, PLC/DCS Analog Output Module

View Detailed Reference Design

Features and Benefits

  • Programmable analog output
  • Industrial current and voltage output driver
  • Ultralow noise and low temperature drift
Simplified Circuit Diagram
Simplified Circuit Diagram
CN0535 Circuits from the lab

High Performance, Alias Free Measurement Platform for Flexible Data Acquisition System

View Detailed Reference Design

Features and Benefits

  • Alias free Measurement System
  • Optimized for AC & DC Performance
  • Wide Analog Input (+/-12V)
  • FMC Compatible Form Factor

Part Used

Resources

Design & Integration Tools

Videos

  • lazy blur
    VIDEO · 2021-11-16 06:43
    CN0535 Unboxing and Getting Started Video
  • lazy blur
    VIDEO · 2021-11-04 04:42
    CN0535 Mbed Example Program Setup
Four AD7765 ADCs in a Daisy-Chained Connection
Four AD7765 ADCs in a Daisy-Chained Connection
CN0157 Circuits from the lab

24-Bit, 4-Channel, High Dynamic Range, 156 kSPS per Channel Simultaneous Sampling Data Acquisition System

View Detailed Reference Design

Features and Benefits

  • 24 bit, 4 channel simultaneous sampling system
  • High dynamic range with high crosstalk isolation
  • Daisy chain configuration minimizes digital lines to host
Flexible Analog Front-End Circuit for Wide Industrial Range Signal Conditioning
Flexible Analog Front-End Circuit for Wide Industrial Range Signal Conditioning
CN0251 Circuits from the lab

24-Bit, 4.7 Hz, 4-Channel Analog Data Acquisiton System

View Detailed Reference Design

Features and Benefits

  • 4-channel wide dynamic range
  • Industrial signal levels
  • In-amp input stage for high CMR
Basic Analog Output Circuit for Single Channel
Basic Analog Output Circuit for Single Channel
CN0204 Circuits from the lab

Flexible, High Voltage, High Accuracy, Low Drift PLC/DCS Analog Output Module

View Detailed Reference Design

Features and Benefits

  • High voltage, up to 44V
  • Programmable analog output
  • Galvanic isolation from rest of system
  • Ideal for PLC and DCS modules
Multichannel Data Acquisition Circuit
Multichannel Data Acquisition Circuit
CN0269 Circuits from the lab

18-Bit, 1.33 MSPS, 16-Channel Data Acquisition System

View Detailed Reference Design

Features and Benefits

  • 18-Bit, 16-Channel Data Acquisition
  • 16 single-ended, 8 differential inputs
  • 1.33MSPS sampling rate
  • 250kHz channel switching rate
CN0202
Flexible, High Accuracy, Low Drift, PLC/DCS Analog Output Module
Basic Analog Output Circuit for Single Channel
CN0535
High Performance, Alias Free Measurement Platform for Flexible Data Acquisition System
Simplified Circuit Diagram
CN0157
24-Bit, 4-Channel, High Dynamic Range, 156 kSPS per Channel Simultaneous Sampling Data Acquisition System
Four AD7765 ADCs in a Daisy-Chained Connection
CN0251
24-Bit, 4.7 Hz, 4-Channel Analog Data Acquisiton System
Flexible Analog Front-End Circuit for Wide Industrial Range Signal Conditioning
CN0204
Flexible, High Voltage, High Accuracy, Low Drift PLC/DCS Analog Output Module
Basic Analog Output Circuit for Single Channel
CN0269
18-Bit, 1.33 MSPS, 16-Channel Data Acquisition System
Multichannel Data Acquisition Circuit

Latest Discussions

35 Weeks Ago
RE: Design Verification
50 Weeks Ago
Output voltage noise Density
1 Years Ago
Correction of AD4134 Vcm does not seem to work
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