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LT1491AIDHC#TRPBF

Op Amp Quad Micropower Amplifier R-R I/O ±22V/44V 16-Pin DFN EP T/R

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Overview of LT1491AIDHC#TRPBF

One of the key features of the LT1490A/LT1491A is their reverse supply protection, drawing virtually no current for reverse supply up to 18V, providing added reliability and safety. Additionally, these op amps have a wide input range that includes both supplies, and the output swings to both supplies, offering flexibility in circuit design

Key Features

  • Low Input Offset Voltage: 500µV Max
  • Output Swings to 10mV Max from V–
  • Rail-to-Rail Input and Output
  • Micropower: 50µA/Amplifier Max
  • Over-The-Top® Input Common Mode Range Extends 44V Above V–, Independent of V+
  • Specified on 3V, 5V and ±15V Supplies
  • High Output Current: 20mA
  • Output Drives 10,000pF with Output Compensation
  • Reverse Battery Protection to 18V
  • No Supply Sequencing Problems
  • High Voltage Gain: 1500V/mV
  • High CMRR: 98dB
  • No Phase Reversal
  • Gain Bandwidth Product: 200kHz
  • Tiny 3mm × 3mm × 0.8mm DFN Package

Application

  • Battery- or Solar-Powered Systems
    • Portable Instrumentation
    • Sensor Conditioning
  • Supply Current Sensing
  • Battery Monitoring
  • Micropower Active Filters
  • 4mA to 20mA Transmitters

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Series LT1491A Product Status Active
Amplifier Type General Purpose Output Type Rail-to-Rail
Slew Rate 0.06V/µs Gain Bandwidth Product 200 kHz
Current - Input Bias 1 nA Voltage - Input Offset 285 µV
Current - Supply 50µA (x4 Channels) Current - Output / Channel 25 mA
Voltage - Supply Span (Min) 2 V Voltage - Supply Span (Max) 44 V
Operating Temperature -40°C ~ 85°C Mounting Type Surface Mount
Package / Case DFN-16 Supplier Device Package 16-DFN (5x3)
Base Product Number LT1491 Manufacturer Analog Devices Inc.
Product Category Operational Amplifiers - Op Amps RoHS Details
Mounting Style SMD/SMT Number of Channels 4 Channel
Supply Voltage - Max 44 V GBP - Gain Bandwidth Product 180 kHz
Output Current per Channel 25 mA SR - Slew Rate 60 mV/us
Supply Voltage - Min 2 V Ib - Input Bias Current 1 nA
Operating Supply Current 40 uA CMRR - Common Mode Rejection Ratio 98 dB
en - Input Voltage Noise Density 50 nV/sqrt Hz Brand Analog Devices
In - Input Noise Current Density 0.015 pA/rtHz Product Type Op Amps - Operational Amplifiers
Factory Pack Quantity 2500 Subcategory Amplifier ICs

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Warranty, Returns, and Additional Information

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    Parts Quality Guarantee: 365 days

    Returns for refund: within 90 days

    Returns for Exchange: within 90 days

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