ADA4841-1

PRODUCTION

ADA4841-1

Low Power, Low Noise and Distortion, Rail-to-Rail Output Amplifier

PRODUCTION

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Part Models 5

1ku List Price Starting From $1.87

Features

Low power: 1.1 mA/amp
Low wideband noise
- 2.1 nV/√Hz
- 1.4 pA/√Hz
Low 1/f noise
- 7 nV/√Hz @ 10 Hz
- 13 pA/√Hz @ 10 Hz
Low distortion: −105 dBc @ 100 kHz, V_O = 2 V p-p
High speed
- 80 MHz, −3 dB bandwidth (G = +1)
- 12 V/μs slew rate
- 175 ns settling time to 0.1%
Low offset voltage: 0.3 mV maximum
Rail-to-rail output
Power down
Wide supply range: 2.7 V to 12 V

Additional Details

The ADA4841-1 is a unity gain stable, low noise and distortion, rail-to-rail output amplifier that has a quiescent current of 1.5 mA maximum. In spite of its low power consumption, this amplifier offers low wideband voltage noise performance of 2.1 nV/√Hz and 1.4 pA/√Hz current noise, along with excellent spurious-free dynamic range (SFDR) of −105 dBc at 100 kHz. To maintain a low noise environment at lower frequencies, the amplifier has low 1/f noise of 7 nV/√Hz and 13 pA/√Hz at 10 Hz.

The ADA4841-1 output can swing to less than 50 mV of either rail. The input common-mode voltage range extends down to the negative supply. The ADA4841-1 can drive up to 10 pF of capacitive load with minimal peaking.

The ADA4841-1 provides the performance required to efficiently support emerging 16-bit to 18-bit ADCs and is ideal for portable instrumentation, high channel count, industrial measurement, and medical applications. The ADA4841-1 is ideally suited to drive the AD7685/AD7686, 16-bit PulSAR ADCs.

The ADA4841-1 package features RoHS compliant lead finishes. The amplifier is rated to work over the industrial temperature range (−40°C to +125°C).

Applications

Low power, low noise signal processing
Battery-powered instrumentation
16-bit PulSAR^® ADC drivers

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Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

Sales & Ordering FAQs

Part Models 5

1ku List Price Starting From $1.87

Technical Documents 6

ADA4841-1/ADA4841-2: Low Power, Low Noise and Distortion, Rail-to-Rail Output Amplifiers Data Sheet (Rev.G) 09/28/2015

UG-838: Evaluation Board for Single, High Speed Op Amps Offered in 5-Lead SOT-23 and 6-Lead SOT-23 Packages 10/15/2015

UG-755: 8-Lead SOIC Amplifier Evaluation Board User Guide (Rev.A) 04/14/2015

AN-581: Biasing and Decoupling Op Amps in Single Supply Applications (Rev.0) 02/14/2015

AN-1212: Single Supply Low Noise LED Current Source Driver Using a Current Output DAC in the Reverse Mode 06/04/2024

AN-931: Understanding PulSAR ADC Support Circuitry 07/30/2020

Reference Materials 19

MT-056: High Speed Voltage Feedback Op Amps 02/03/2009

MT-058: Effects of Feedback Capacitance on VFB and CFB Op Amps 02/14/2015

MT-060: Choosing Between Voltage Feedback and Current Feedback Op Amps 02/14/2015

MT-048: Op Amp Noise Relationships: 1/f Noise, RMS Noise, and Equivalent Noise Bandwidth 02/14/2015

MT-033: Voltage Feedback Op Amp Gain and Bandwidth 02/14/2015

MT-050: Op Amp Total Output Noise Calculations for Second-Order System 02/14/2015

MT-047: Op Amp Noise 02/14/2015

MT-032: Ideal Voltage Feedback (VFB) Op Amp 12/11/2008

MT-059: Compensating for the Effects of Input Capacitance on VFB and CFB Op Amps Used in Current-to-Voltage Converters 02/14/2015

MT-049: Op Amp Total Output Noise Calculations for Single-Pole System 02/14/2015

MT-052: Op Amp Noise Figure: Don't Be Misled 02/14/2015

MT-053: Op Amp Distortion: HD, THD, THD + N, IMD, SFDR, MTPR 02/14/2015

High Speed Amplifiers Selection Table 02/27/2008

SAR ADC & Driver Quick-Match Guide 09/13/2013

National Instruments Case Study 11/21/2014

CN-0255: A Complete Single-Supply, 16-Bit, 100 kSPS PulSAR ADC System Dissipates 8 mW 12/30/2013

Voltage Reference Design for Precision Successive-Approximation ADCs 06/01/2013

Front-End Amplifier and RC Filter Design for a Precision SAR Analog-to-Digital Converter 12/01/2012

A Stress-Free Method for Choosing High-Speed Op Amps 05/08/2015

Design Resources 5

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
ADA4841-1YRJZ-R2	6-Lead SOT-23	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
ADA4841-1YRJZ-R7	6-Lead SOT-23	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
ADA4841-1YRZ	8-Lead SOIC	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
ADA4841-1YRZ-R7	8-Lead SOIC	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
ADA4841-1YRZ-RL	8-Lead SOIC	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys

ADA4841-1YRJZ-R2
Pin/Package Drawing
6-Lead SOT-23
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

ADA4841-1YRJZ-R7
Pin/Package Drawing
6-Lead SOT-23
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

ADA4841-1YRZ
Pin/Package Drawing
8-Lead SOIC
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

ADA4841-1YRZ-R7
Pin/Package Drawing
8-Lead SOIC
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

ADA4841-1YRZ-RL
Pin/Package Drawing
8-Lead SOIC
Documentation

HTML Material Declaration

HTML Reliablity Data

CAD Symbols, Footprints, and 3D Models
Ultra Librarian
SamacSys

PCN/PDN Information

Filter by Model

Part Models

Product Lifecycle

PCN

Feb 4, 2010

- 10_0009

Halogen Free Material Change for SOT_23 Products

ADA4841-1YRJZ-R7

PRODUCTION

xls

Material_Report

pdf

PCN10_0009_Form

SOT23 Qualification Data.doc

Filter by Model

Part Models

Product Lifecycle

PCN

Feb 4, 2010

- 10_0009

Halogen Free Material Change for SOT_23 Products

ADA4841-1YRJZ-R7

PRODUCTION

xls

Material_Report

pdf

PCN10_0009_Form

SOT23 Qualification Data.doc

Alternative Parts 1

Parts	Product Life Cycle	Description
ADA4805-1	RECOMMENDED FOR NEW DESIGNS	0.2 µV/°C Offset Drift, 105 MHz Low Power, Low Noise, Rail-to-Rail Amplifier

EVAL-AD7768

AD7768 Evaluation Board

EVAL-AD7768FMCZ Sample Board Configuration

AD7768 Evaluation Board

Download

EVAL-AD7768

AD7768 Evaluation Board

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

Buy Now View Details

Product Detail

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.

Resources

PDF

UG-917: Evaluation Board for the AD7768 24-Bit, 8-Channel, Simultaneous Sampling, 256 kSPS, Sigma-Delta ADC with Power Scaling (Rev.A)

3.02 M

AD7768 Evaluation Board Documentation

ZIP

AD7768 Gerber Files

600.58 K

Software

ZIP

AD7768 Evaluation Software

277.35 M

EVAL-HSAMP-1

Universal Evaluation Board for Single High Speed Operational Amplifiers

EVAL-HSAMP-1

Universal Evaluation Board for Single High Speed Operational Amplifiers

Features and Benefits

Enables quick breadboarding/prototyping
User defined circuit configuration
Edge mounted Subminiature Version A (SMA) connector
provisions Easy connection to test equipment and other circuits

Buy Now View Details

Product Detail

The Universal Single High Speed Amplifier Evaluation Boards are bare boards that enable users to quickly prototype a variety of amplifier circuits, which minimizes risk and reduces time to market. These boards are all RoHs Compliant. See ordering guide below on what board to order by lead count and package.

Resources

pdf

UG-084: Evaluation Board for Single, High Speed Operational Amplifiers (8-Lead, SOIC with Dedicated Feedback Pin and Exposed Paddle)

243 kB

PDF

UG-838: Evaluation Board for Single, High Speed Op Amps Offered in 5-Lead SOT-23 and 6-Lead SOT-23 Packages

184.4 K

PDF

UG-919: Universal Evaluation Board for Single, 8-Lead LFCSP Operational Amplifiers (Rev.0)

196.34 K

pdf

UG-112: Universal Evaluation Board for Single, High Speed Op Amps Offered in SC-70 Packages

270 kB

pdf

UG-135: Evaluation Board for Single, High Speed Operational Amplifiers (8-Lead SOIC and Exposed Paddle)

261 kB

PDF

UG-755: 8-Lead SOIC Amplifier Evaluation Board User Guide (Rev.A)

248.82 K

EVAL-AD7768-4

AD7768-4 Evaluation Board

EVAL-AD77648-4 Evaluation software main window

AD7768-4 Evaluation Board

Download

EVAL-AD7768-4

AD7768-4 Evaluation Board

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

Buy Now View Details

Product Detail

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.

Resources

PDF

UG-921: Evaluation Board for the AD7768-4 24-Bit, 4-Channel, Simultaneous Sampling, 256 kSPS, Sigma-Delta ADC with Power Scaling (Rev.0)

913.67 K

ZIP

AD7768-4 Gerber Files

481.27 K

Software

ZIP

AD7768-4 Evaluation Software

343.11 M

EVAL-AD7761

AD7761 Evaluation Board

AD7761 Evaluation Board

Download

EVAL-AD7761

AD7761 Evaluation Board

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

Buy Now View Details

Product Detail

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.

Resources

PDF

UG-949: Evaluation Board for the AD7761 16-Bit, 8-Channel, Simultaneous Sampling, 256 kSPS, Sigma-Delta ADC with Power Scaling (Rev.0)

1.13 M

Software

ZIP

AD7761 Evaluation Software

343.07 M

EVAL-AD7768

AD7768 Evaluation Board

EVAL-HSAMP-1

Universal Evaluation Board for Single High Speed Operational Amplifiers

EVAL-AD7768-4

AD7768-4 Evaluation Board

EVAL-AD7761

AD7761 Evaluation Board

LTspice 1

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.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

Lt Spice

ADA4841-1 - Operational Amplifiers (Op Amps)

0.77 K

Precision ADC Driver Tool

The Precision ADC Driver Tool is a web application that simulates the performance of precision ADC and driver combinations. Potential issues with driver selection, kickback settling, and distortion are flagged, and design tradeoffs can be quickly evaluated. Simulations and calculations include system noise, distortion, and settling of the ADC input

Open Tool

Analog Photodiode Wizard

Use Photodiode Wizard to design a transimpedance amplifier circuit to interface with a photodiode. Select a photodiode from the library included in the tool, or enter custom photodiode specifications. Quickly observe tradeoffs between Bandwidth, Peaking (Q), and ENOB/SNR. Modify circuit parameters, and immediately see results in plots for pulse response, frequency response, and noise gain.

Open Tool

VRMS/dBm/dBu/dBV calculators

A utility to convert between standard units of power measurement and signal strength.

Open Tool

Power Dissipation vs Die Temp

This tool estimates die temperature and power dissipation based on the supply voltages, ambient temperature, load characteristics, and package thermal data.

Open Tool

Analog Filter Wizard

Use the Analog Filter Wizard to design low-pass, high-pass, or band-pass filters with actual op amps in minutes. As you progress through the design process, you can observe the characteristics of your filter design from ideal specifications to real world circuit behavior. Quickly evaluate the tradeoffs in op amp specifications - including gain-bandwidth, noise, and supply current – to determine the best filter design for your requirements.

Open Tool