ADA4805-2
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ADA4805-2

Dual, 0.2 µV/°C Offset Drift, 105 MHz Low Power, Low Noise, Rail-to-Rail Amplifier

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SPICE Model ADA4805 SPICE Macro Model Download 7.37 KB LTspice ADA4805-2 - Operational Amplifiers (Op Amps) Download 1.37 KB
Part Models 6
1ku List Price Starting From $1.93
Features
  • Low input offset voltage: 125 µV (maximum)
  • Low input offset voltage drift
    • 0.2 µV/°C (typical)
    • 1.5 µV/°C (maximum)
  • Ultralow supply current: 500 µA per amplifier
  • Fully specified at VS = 3 V, 5 V, ±5 V
  • High speed performance
    • −3 dB bandwidth: 105 MHz
    • Slew rate: 160 V/µs
    • Settling time to 0.1%: 35 ns
  • Rail-to-rail outputs
  • See data sheet for additional features
ADA4805-2-EP supports defense and aerospace applications (AQEC standard)
  • Download the ADA4805-2-EP data sheet (pdf)
  • Extended industrial temperature range (−55°C to +125°C)
  • Controlled manufacturing baseline
  • 1 assembly/test site
  • 1 fabrication site
  • Enhanced product change notification
  • Qualification data available upon request
  • V62/16621 DSCC Drawing Number
Additional Details
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The ADA4805-1/ADA4805-2 are high speed voltage feedback, rail-to-rail output amplifiers with an exceptionally low quiescent current of 500 µA, making them ideal for low power, high resolution data conversion systems. Despite being low power, these amplifiers provide excellent overall performance. They offer a high bandwidth of 105 MHz at a gain of +1, a high slew rate of 160 V/µs, and a low input offset voltage of 125 µV (maximum).

A shutdown pin allows further reduction of the quiescent supply current to 2.9 µA. For power sensitive applications, the shutdown mode offers a very fast turn on time of 3 µs. This allows the user to dynamically manage the power of the amplifier by turning the amplifier off between ADC samples.

The Analog Devices, Inc., proprietary extra fast complementary bipolar (XFCB) process allows for both low voltage and low current noise (5.9 nV/√Hz, 0.6 pA/√Hz). The ADA4805-1/ADA4805-2 operate over a wide range of supply voltages from ±1.5 V to ±5 V, as well as single 3 V and 5 V supplies, making them ideal for high speed, low power instruments.

The ADA4805-1 is available in a 6-lead SOT-23 and a 6-lead SC70 package. The ADA4805-2 is available in an 8-lead MSOP package. These amplifiers are rated to work over the industrial temperature range of −40°C to +125°C.

Applications

  • High resolution, high precision analog-to-digital converter (ADC) drivers
  • Battery-powered instrumentation
  • Micropower active filters
  • Portable point of sales terminals
  • Active radio frequency identification (RFID) readers
  • Photo multipliers
  • ADC reference buffers
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file View Data Sheet (Rev.B)
Documentation View All Documentation
SPICE Model ADA4805 SPICE Macro Model Download 7.37 KB LTspice ADA4805-2 - Operational Amplifiers (Op Amps) Download 1.37 KB
Part Models 6
1ku List Price Starting From $1.93
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ADA4805-2

Documentation

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Data Sheet

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UPDATED 07/29/2014
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ADA4805-1/ADA4805-2: 0.2 μV/°C Offset Drift, 105 MHz Low Power, Low Noise, Rail-to-Rail Amplifiers Data Sheet (Rev.B)

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UPDATED 04/29/2016
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ADA4805-2-EP: Enhanced Product Data Sheet (Rev.0)

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UPDATED 11/22/2016
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ADA4805-2-DSCC: Military Data Sheet

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User Guide

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UPDATED 01/09/2019
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UG-1224: Amplifier Mezzanine Card for ADC Drivers (Rev.0) redirect icon

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UPDATED 10/26/2015
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UG-886: Universal Evaluation Board for Dual High Speed Op Amps Offered in 8-Lead MSOP redirect icon

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UPDATED 12/01/2014
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UG-776: Universal Evaluation Board for Dual High Speed Op Amps Offered in 10-Lead, 3 mm × 3 mm LFCSP redirect icon

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Application Note

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UPDATED 06/05/2020
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AN-1384: Pairing A Driver Amplifier with the AD7768/AD7768-4 or the AD7768-1 redirect icon

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UPDATED 06/05/2020
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使用AD7768/AD7768-4实现模块化数据采集 (DAQ) 封装 redirect icon

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UPDATED 06/05/2020
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AN-1384：AD7768/AD7768-4 または AD7768-1 を使用したドライバ・アンプのペアリング redirect icon

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Documentation

Technical Documents 7
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Data Sheet 3

ADA4805-1/ADA4805-2: 0.2 μV/°C Offset Drift, 105 MHz Low Power, Low Noise, Rail-to-Rail Amplifiers Data Sheet (Rev.B)
ADA4805-2-EP: Enhanced Product Data Sheet (Rev.0)
ADA4805-2-DSCC: Military Data Sheet

User Guide 3

UG-1224: Amplifier Mezzanine Card for ADC Drivers (Rev.0)
UG-886: Universal Evaluation Board for Dual High Speed Op Amps Offered in 8-Lead MSOP
UG-776: Universal Evaluation Board for Dual High Speed Op Amps Offered in 10-Lead, 3 mm × 3 mm LFCSP

Application Note 1

AN-1384: Pairing A Driver Amplifier with the AD7768/AD7768-4 or the AD7768-1

Analog Dialogue 1

Can You Really Get ppm Accuracies from Op Amps?

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2014-11-06

03:08

High Speed ADC Driver Delivers High Accuracy at Very Low Power

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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
ADA4805-2ACPZ-R2 10-Lead LFCSP (3mm x 3mm) external-link
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  • Material Declaration external-link
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ADA4805-2ACPZ-R7 10-Lead LFCSP (3mm x 3mm) external-link
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  • Material Declaration external-link
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ADA4805-2ARMZ 8-Lead MSOP external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
ADA4805-2ARMZ-R7 8-Lead MSOP external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
ADA4805-2TRMZ-EP 8-Lead MSOP external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
ADA4805-2TRMZ-EPR7 8-Lead MSOP external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link

Software & Part Ecosystem

Evaluation Kits 2

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EVAL-HSAMP-2

Universal Evaluation Board for Dual High Speed Operational Amplifiers

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EVAL-HSAMP-2

Universal Evaluation Board for Dual High Speed Operational Amplifiers

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EVAL-HSAMP-2
Universal Evaluation Board for Dual High Speed Operational Amplifiers
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Product Detail

The Universal Dual High Speed Amplifier Evaluation Boards are bare boards that enables 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

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UG-267: Universal Evaluation Board for Dual High Speed Op Amps Offered in 8-Lead 3 mm × 3 mm LFCSP reference design link

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UG-337: Universal Evaluation Board for Dual, High Speed Op Amps Offered in 10-Lead MSOP Packages Download

284 kB

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UG-128: Universal Evaluation Board for Dual High Speed Op Amps in SOIC Packages Download

208 kB

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UG-886: Universal Evaluation Board for Dual High Speed Op Amps Offered in 8-Lead MSOP Download

155.96 K

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UG-776: Universal Evaluation Board for Dual High Speed Op Amps Offered in 10-Lead, 3 mm × 3 mm LFCSP Download

241.87 K

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AMC-ADA4805-2ARMZ

Amplifier Mezzanine Card for ADA4805-2

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AMC-ADA4805-2ARMZ

Amplifier Mezzanine Card for ADA4805-2

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AMC-ADA4805-2ARMZ
Amplifier Mezzanine Card for ADA4805-2

Features and Benefits

  • Enables quick breadboarding and prototyping
  • User defined circuit configuration
  • Easy connection to other ADC evaluation boards
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Product Detail

The Analog Devices, Inc., amplifier mezzanine card (AMC) analog-to-digital converter (ADC) driver evaluates the performance of amplifiers in 8-lead, single and dual SOIC, 6-lead single SOT23, 8-lead dual MSOP, and 16-lead LFCSP packages. This add on board can be inserted on ADC evaluation boards using its 7-pin header. Figure 1 shows the AMC mounted on an Analog Devices, Inc., ADC evaluation board.

The AMC can support any of Analog Devices operational amplifiers and ADC drivers in different packages. The user can configure the ADC driver as a Sallen-Key low-pass, high-pass, or band-pass filter, as a multiple feedback low-pass, high-pass, or band-pass filter, or as an inverting and noninverting operational amplifier. The user can also configure the AMC to drive a single-ended, fully differential, or a single-ended signal to a differential ADC.

Optimized power and ground planes ensure low noise and high speed operation. Component placement and power supply bypassing are optimized for maximum circuit flexibility and performance. The AMC evaluation board accepts 0402 or 0603 surface mount technology (SMT) components, 1206 bypass capacitors, and 2.54 mm headers.

All components are placed on the primary side. No components are placed on the secondary side.

Resources

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UG-1224: Amplifier Mezzanine Card for ADC Drivers (Rev.0) Download

821.25 K

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Evaluation Kits2

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EVAL-HSAMP-2

Universal Evaluation Board for Dual High Speed Operational Amplifiers
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AMC-ADA4805-2ARMZ

Amplifier Mezzanine Card for ADA4805-2

Tools & Simulations 7

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.

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ADA4805-2 - Operational Amplifiers (Op Amps) Download

1.37 K

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