ADA4891-2

PRODUCTION

Low Cost CMOS, High Speed, Rail-to-Rail Amplifiers (Dual)

Part Models
7
1ku List Price
Starting From $0.85
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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
ADA4891-2
Low Cost CMOS, High Speed, Rail-to-Rail Amplifiers (Dual)
ADA4891-2-pcl
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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 board
EVAL-LTPA-KIT

LTpowerAnalyzer Kit

Features and Benefits

  • Low-cost, high performance, compact, all-in-one, laboratory tool kit for evaluating and characterizing power designs
  • Capable of measuring bode response, transient response, and output impedance
  • Offers high portability
  • USB-powered device
  • Compatible with ADALM2000
  • Comes with user-friendly interfaces and documentations for both hardware and software, allowing ease of use for evaluating power supply designs
  • Offers four (4) current probe variations for transient measurements: 1A, 10A, 50A, and 100A.
  • Each current probe can be used as a DC load of up to 8W in still air.

Product Details

The EVAL-LTPA-KIT or LTpowerAnalyzer Kit is a low-cost, high performance, compact laboratory tool for evaluating and characterizing power supply designs – allowing measurements of frequency response, transient response, and output impedance. Combined with the capabilities of the ADALM2000 Learning Module, it offers high portability with its compact size.

The EVAL-LTPA-KIT LTpowerAnalyzer Software offers a user-friendly interface with documentations for ease of usage. It comes with four different current probes for 1A, 10A, 50A, and 100A. Immediately kick-off using the kit with the LT8642S-based demo board.

The EVAL-LTPA-KIT comes with the following boards and accessories:

  • Base Board:
    • EVAL-LTPA-KIT Base Board
  • Current Probes:
    • 1A Current Probe
    • 10A Current Probe
    • 50A Current Probe
    • 100A Current Probe
  • Interposer Boards:
    • Interface A Board
    • Interface B Boards (5 pieces)
    • Interface C Board
  • LT8642A Demo Board
  • 2-Inch 16-Pin Ribbon Cable
  • 8-Inch 14-Pin Ribbon Cable
  • Connector Sockets (2 Pieces)

APPLICATIONS

  • Laboratory Instrumentation

eval board
EVAL-HSAMP-2

Universal Evaluation Board for Dual High Speed Operational Amplifiers

Product Details

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

EVAL-LTPA-KIT
LTpowerAnalyzer Kit
EVAL-LTPA-KIT Board Photo Angle View EVAL-LTPA-KIT Board Photo Top View EVAL-LTPA-KIT Block Diagram
EVAL-HSAMP-2
Universal Evaluation Board for Dual High Speed Operational Amplifiers
EVAL-HSAMP-2 Group EVAL-HSAMP-2CPZ-10 EVAL-HSAMP-2RMZ-10 EVAL-HSAMP-2RMZ-8 EVAL-HSAMP-2RZ-8

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