AD8628
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AD8628

Zero-Drift, Single-Supply, Rail-to-Rail Input/Output Operational Amplifier

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 12
1ku List Price Starting From $1.30
Features
  • Lowest auto-zero amplifier noise
  • Low offset voltage: 1 μV
  • Input offset drift: 0.002 μV/°C
  • Rail-to-rail input and output swing
  • 5 V single-supply operation
  • High gain, CMRR, and PSRR: 130 dB
  • Very low input bias current: 100 pA maximum
  • Low supply current: 1.0 mA
  • Overload recovery time: 50 μs
  • No external components required
  • Qualified for automotive applications
Additional Details
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This amplifier has ultralow offset, drift, and bias current. The AD8628/AD8629/AD8630 are wide bandwidth auto-zero amplifiers featuring rail-to-rail input and output swing and low noise. Operation is fully specified from 2.7 V to 5 V single supply (±1.35 V to ±2.5 V dual supply).

The AD8628/AD8629/AD8630 provide benefits previously found only in expensive auto-zeroing or chopper-stabilized amplifiers. Using Analog Devices, Inc., topology, these zero-drift amplifiers combine low cost with high accuracy and low noise. No external capacitor is required. In addition, the AD8628/ AD8629/AD8630 greatly reduce the digital switching noise found in most chopper-stabilized amplifiers.

With an offset voltage of only 1 μV, drift of less than 0.005 μV/°C, and noise of only 0.5 μV p-p (0.1 Hz to 10 Hz), the AD8628/AD8629/AD8630 are suited for applications where error sources cannot be tolerated. Position and pressure sensors, medical equipment, and strain gage amplifiers benefit greatly from nearly zero drift over their operating  temperature range. Many systems can take advantage of the rail-to-rail input and output swings provided by the AD8628/AD8629/AD8630 to reduce input biasing complexity and maximize SNR.

The AD8628/AD8629/AD8630 are specified for the extended industrial temperature range (−40°C to +125°C). The AD8628 is available in tiny 5-lead TSOT, 5-lead SOT-23, and 8-lead narrow SOIC plastic packages. The AD8629 is available in the standard 8-lead narrow SOIC and MSOP plastic packages. The AD8630 quad amplifier is available in 14-lead narrow SOIC and 14-lead TSSOP plastic packages. See the Ordering Guide section of the data sheet for automotive grades.

Applications

  • Automotive sensors
  • Pressure and position sensors
  • Strain gage amplifiers
  • Medical instrumentation
  • Thermocouple amplifiers
  • Precision current sensing
  • Photodiode amplifiers
Part Models 12
1ku List Price Starting From $1.30

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
AD8628ARTZ-R2
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AD8628ARTZ-REEL7
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AD8628ARZ
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AD8628ARZ-REEL
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AD8628ARZ-REEL7
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AD8628AUJZ-REEL
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AD8628AUJZ-REEL7
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AD8628WARTZ-R7
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AD8628WARTZ-RL
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AD8628WARZ-R7
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AD8628WAUJZ-R7
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AD8628WAUJZ-RL
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Part Models

Product Lifecycle

PCN

May 8, 2023

- 23_0068

Qualification of Alternate Wafer Fab Site at ADI Limerick for 0.6um CMOS Amplifier Product

AD8628ARTZ-R2

PRODUCTION

AD8628ARTZ-REEL7

PRODUCTION

AD8628ARZ

PRODUCTION

AD8628ARZ-REEL

PRODUCTION

AD8628ARZ-REEL7

PRODUCTION

AD8628AUJZ-REEL

PRODUCTION

AD8628AUJZ-REEL7

PRODUCTION

AD8628WARTZ-R7

PRODUCTION

AD8628WARTZ-RL

PRODUCTION

AD8628WARZ-R7

PRODUCTION

AD8628WAUJZ-R7

PRODUCTION

AD8628WAUJZ-RL

PRODUCTION

Aug 20, 2010

- 09_0204

AD8628 Die Revision

AD8628ARTZ-R2

PRODUCTION

AD8628ARTZ-REEL7

PRODUCTION

AD8628ARZ

PRODUCTION

AD8628ARZ-REEL

PRODUCTION

AD8628ARZ-REEL7

PRODUCTION

AD8628AUJZ-REEL

PRODUCTION

AD8628AUJZ-REEL7

PRODUCTION

Oct 11, 2022

- 22_0253

Addition of UTAC Thailand as an Alternate Assembly Site for SOT23, SC70 and TSOT Packages/Devices

Feb 4, 2010

- 10_0009

Halogen Free Material Change for SOT_23 Products

AD8628ARTZ-REEL7

PRODUCTION

AD8628WARTZ-R7

PRODUCTION

AD8628WARTZ-RL

PRODUCTION

Jan 26, 2010

- 10_0007

Halogen Free Material Change for TSOT Products

AD8628AUJZ-REEL

PRODUCTION

AD8628AUJZ-REEL7

PRODUCTION

AD8628WAUJZ-RL

PRODUCTION

Jul 20, 2012

- 12_0105

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

Filter by Model

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Part Models

Product Lifecycle

PCN

May 8, 2023

- 23_0068

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Qualification of Alternate Wafer Fab Site at ADI Limerick for 0.6um CMOS Amplifier Product

AD8628ARTZ-R2

PRODUCTION

AD8628ARTZ-REEL7

PRODUCTION

AD8628ARZ

PRODUCTION

AD8628ARZ-REEL

PRODUCTION

AD8628ARZ-REEL7

PRODUCTION

AD8628AUJZ-REEL

PRODUCTION

AD8628AUJZ-REEL7

PRODUCTION

AD8628WARTZ-R7

PRODUCTION

AD8628WARTZ-RL

PRODUCTION

AD8628WARZ-R7

PRODUCTION

AD8628WAUJZ-R7

PRODUCTION

AD8628WAUJZ-RL

PRODUCTION

Aug 20, 2010

- 09_0204

arrow down

AD8628 Die Revision

AD8628ARTZ-R2

PRODUCTION

AD8628ARTZ-REEL7

PRODUCTION

AD8628ARZ

PRODUCTION

AD8628ARZ-REEL

PRODUCTION

AD8628ARZ-REEL7

PRODUCTION

AD8628AUJZ-REEL

PRODUCTION

AD8628AUJZ-REEL7

PRODUCTION

Oct 11, 2022

- 22_0253

arrow down

Addition of UTAC Thailand as an Alternate Assembly Site for SOT23, SC70 and TSOT Packages/Devices

Feb 4, 2010

- 10_0009

arrow down

Halogen Free Material Change for SOT_23 Products

AD8628ARTZ-REEL7

PRODUCTION

AD8628WARTZ-R7

PRODUCTION

AD8628WARTZ-RL

PRODUCTION

Jan 26, 2010

- 10_0007

arrow down

Halogen Free Material Change for TSOT Products

AD8628AUJZ-REEL

PRODUCTION

AD8628AUJZ-REEL7

PRODUCTION

AD8628WAUJZ-RL

PRODUCTION

Jul 20, 2012

- 12_0105

arrow down

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

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

EVAL-OPAMP-1

EVAL-OPAMP-1 Evaluation Board

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EVAL-OPAMP-1

EVAL-OPAMP-1 Evaluation Board

EVAL-OPAMP-1 Evaluation Board

Product Detail

The Universal Precision Op Amp Evaluation Boards have been designed and optimized for many circuit configurations allowing the users to best suit their applications. These boards are all RoHs Compliant. See references below on what board to order by lead count and package.

  • EVAL-PRAOPAMP-1KSZ (Single 5-Lead SC70) KS-5
  • EVAL-PRAOPAMP-1RJZ (Single 5-Lead SOT 23) RJ-5
  • EVAL-PRAOPAMP-1RMZ (Single 8-Lead MSOP) RM-8
  • EVAL-PRAOPAMP-1RZ (Single 8-Lead SOIC) R-8
Tools & Simulations

Tools & Simulations 5

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Reference Designs

Reference Designs 5

Precision DAC Configuration

High Precision Digital-to-Analog Conversion Using the 16-Bit AD5542/AD5541 Voltage Output DAC, ADR421 Reference, and AD8628 Auto-Zero Op Amp

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CN0079

High Precision Digital-to-Analog Conversion Using the 16-Bit AD5542/AD5541 Voltage Output DAC, ADR421 Reference, and AD8628 Auto-Zero Op Amp

CN0079

Circuits from the lab

tooltip Info:Circuits from the lab
High Precision Digital-to-Analog Conversion Using the 16-Bit AD5542/AD5541 Voltage Output DAC, ADR421 Reference, and AD8628 Auto-Zero Op Amp

Features and Benefits

  • Precision Digital to Analog Conversion
  • Auto Zero Op-Amp Reduces Digital Switching Noise for 16-Bit DAC
View Detailed Reference Design external link
Complete, Single-Supply, 16-Bit Volatile Organic Compound Detector

Volatile Organic Compound Detector for Indoor Air Quality Measurement

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CN0395

Volatile Organic Compound Detector for Indoor Air Quality Measurement

CN0395

Circuits from the lab

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Volatile Organic Compound Detector for Indoor Air Quality Measurement

Features and Benefits

  • Complete Volatile Organic Compound (VOC) Detector
  • Constant Voltage, Current, Resistance, Temperature, Heater Control Options
  • Wide range sense resistor measurement
  • On board temperature and humidity sensor
View Detailed Reference Design external link

Design & Integration Tools

pdf icon

ZIP

1.36 M

ADuC7060/ADuC7061 as a Temperature Monitor Controller with a Thermocouple Interface

Automotive SENT Interface-Based Thermocouple Temperature Sensor with Cold Junction Compensation Using the ADuC7060/ADuC7061 Precision Analog Microcontroller

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cn0281

Automotive SENT Interface-Based Thermocouple Temperature Sensor with Cold Junction Compensation Using the ADuC7060/ADuC7061 Precision Analog Microcontroller

cn0281

Circuits from the lab

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Automotive SENT Interface-Based Thermocouple Temperature Sensor with Cold Junction Compensation Using the ADuC7060/ADuC7061 Precision Analog Microcontroller

Features and Benefits

  • Thermocouple sensor with cold junction compensation
  • Automotive SENT interface
View Detailed Reference Design external link

Design & Integration Tools

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zip

619 kB

Simplified Circuit Diagram

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

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CN0535

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

CN0535

Circuits from the lab

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

Features and Benefits

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

Design & Integration Tools

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ZIP

1.88 M

Videos

Thumbnail Image

Nov 16, 2021

06:43

CN0535 Unboxing and Getting Started Video

Thumbnail Image

Nov 04, 2021

04:42

CN0535 Mbed Example Program Setup

EVAL-CN0411-ARDZ Evaluation Board

TDS Measurement System for Water Quality Monitoring 

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CN0411

TDS Measurement System for Water Quality Monitoring 

CN0411

Circuits from the lab

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TDS Measurement System for Water Quality Monitoring 

Features and Benefits

  • Measures TDS using Electrical Conductivity
  • Measurement range from 1uS to 1S
  • Uses Standard BNC Probe Connection
  • Arduino Form Factor Compatible
View Detailed Reference Design external link

Design & Integration Tools

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ZIP

2.7 M

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