ADA4891-4
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ADA4891-4

Low Cost CMOS, High Speed, Rail-to-Rail Amplifier (Quad)

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Part Details
Part Models 7
1ku List Price Starting From $1.34
Features
  • High speed and fast settling
    −3 dB bandwidth: 220 MHz (G = +1)
    Slew rate: 170 V/μs
    Settling time to 0.1%: 28 ns
  • Video specifications (G = +2, RL = 150 Ω)
    0.1 dB gain flatness: 25 MHz
    Differential gain error: 0.05%
    Differential phase error: 0.25°
  • Single-supply operation
    Wide supply range: 2.7 V to 5.5 V
    Output swings to within 50 mV of supply rails
  • Low distortion: 79 dBc SFDR at 1 MHz
  • Linear output current: 125 mA at −40 dBc
  • Low power:
    4.4 mA per amplifier
Additional Details
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The ADA4891-1 (single), ADA4891-2 (dual), ADA4891-3 (triple), and ADA4891-4 (quad) are CMOS, high speed amplifiers that offer high performance at a low cost. The amplifiers feature true single-supply capability, with an input voltage range that extends 300 mV below the negative rail.

In spite of their low cost, the ADA4891 family provides high performance and versatility. The rail-to-rail output stage enables the output to swing within 50 mV of each rail, enabling maximum dynamic range.

The ADA4891 family of amplifiers is ideal for imaging applications, such as consumer video, CCD buffers, and contact image sensor buffers. Low distortion and fast settling time also make them ideal for active filter applications.

The ADA4891-1/ADA4891-2/ADA4891-3/ADA4891-4 are available in a wide variety of packages.

The ADA4891-1 is available in 8-lead SOIC and 5-lead SOT-23 packages.

The ADA4891-2 is available in 8-lead SOIC and 8-lead MSOP packages.

The ADA4891-3 and ADA4891-4 are available in 14-lead SOIC and 14-lead TSSOP packages.

The amplifiers are specified to operate over the extended temperature range of −40°C to +125°C.

Applications
  • Imaging
  • Consumer video
  • Active filters
  • Coaxial cable drivers
  • Clock buffers
  • Photodiode preamp
  • Contact image sensor and buffers
Part Models 7
1ku List Price Starting From $1.34

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADA4891-4ARUZ
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ADA4891-4ARUZ-R7
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  • HTML
ADA4891-4ARUZ-RL
  • HTML
  • HTML
ADA4891-4ARZ
  • HTML
  • HTML
ADA4891-4ARZ-R7
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ADA4891-4ARZ-RL
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ADA4891-4WARUZ-R7
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Part Models

Product Lifecycle

PCN

Apr 5, 2021

- 21_0035

Amkor Philippines as an Alternate Site for TSSOP_4.4

ADA4891-4ARUZ

PRODUCTION

ADA4891-4ARUZ-R7

PRODUCTION

ADA4891-4ARUZ-RL

PRODUCTION

Nov 23, 2010

- 10_0004

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

ADA4891-4ARZ

PRODUCTION

ADA4891-4ARZ-R7

PRODUCTION

ADA4891-4ARZ-RL

PRODUCTION

Oct 7, 2019

- 19_0197

Addition of a Polyimide Layer to ADA4891-4 in 14-Lead TSSOP

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Apr 5, 2021

- 21_0035

arrow down

Amkor Philippines as an Alternate Site for TSSOP_4.4

ADA4891-4ARUZ

PRODUCTION

ADA4891-4ARUZ-R7

PRODUCTION

ADA4891-4ARUZ-RL

PRODUCTION

Nov 23, 2010

- 10_0004

arrow down

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

ADA4891-4ARZ

PRODUCTION

ADA4891-4ARZ-R7

PRODUCTION

ADA4891-4ARZ-RL

PRODUCTION

Oct 7, 2019

- 19_0197

arrow down

Addition of a Polyimide Layer to ADA4891-4 in 14-Lead TSSOP

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

EVAL-ADA4891-4

ADA4891-4 Evaluation Board

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EVAL-ADA4891-4

ADA4891-4 Evaluation Board

ADA4891-4 Evaluation Board

Product Detail

These evaluation boards are designed to help users evaluate the ADA4891-4. The evaluation board is a BARE BOARD. There are no components or amplifiers soldered to the board. These parts must be obtained separately from the table below or on the product page. Free samples may also be requested. The unpopulated board enables users to quickly customize and prototype a variety of op amp circuits, which minimizes risk and reduces time to market.


The User Guide contains all the required documentation to build the board, including schematics, assembly drawing, and Bill of Materials

Tools & Simulations

Tools & Simulations 4

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 1

High Speed, Low Power, Crest Factor, Peak, and RMS Power Measurement System

Crest Factor, Peak, and RMS RF Power Measurement Circuit Optimized for High Speed, Low Power, and Single 3.3 V Supply

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CN0187

Crest Factor, Peak, and RMS RF Power Measurement Circuit Optimized for High Speed, Low Power, and Single 3.3 V Supply

CN0187

Circuits from the lab

tooltip Info:Circuits from the lab
Crest Factor, Peak, and RMS RF Power Measurement Circuit Optimized for High Speed, Low Power, and Single 3.3 V Supply

Features and Benefits

  • Measures crest factor, peak power, and RMS power
  • Wide frequency range from 450 MHz to 6 GHz
  • Optimized for low power RF monitoring
View Detailed Reference Design external link

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