ADA4891-4

PRODUCTION

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

Data Sheet (Rev. F) Product Selection Table
Part Models
7
1ku List Price
Starting From $1.34
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Part Details

  • 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
ADA4891-4
Low Cost CMOS, High Speed, Rail-to-Rail Amplifier (Quad)
ADA4891-4-fbl
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Documentation

Data Sheet 1

User Guide 2

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Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

  • ADA4891
  • ADA4891-1
  • ADA4891-2
  • ADA4891-3
  • ADA4891-4

SPICE Model 1

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

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
LTspice

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.

Evaluation Kits

EVAL-ADA4891-4

ADA4891-4 Evaluation Board

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Product Details

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
EVAL-ADA4891-4
ADA4891-4 Evaluation Board

Reference Designs

High Speed, Low Power, Crest Factor, Peak, and RMS Power Measurement System
High Speed, Low Power, Crest Factor, Peak, and RMS Power Measurement System
CN0187 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

View Detailed Reference Design

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
CN0187
Crest Factor, Peak, and RMS RF Power Measurement Circuit Optimized for High Speed, Low Power, and Single 3.3 V Supply
High Speed, Low Power, Crest Factor, Peak, and RMS Power Measurement System

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