LT1636

PRODUCTION

Over-The-Top Micropower Rail-to-Rail Input and Output Op Amp

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Overview

  • Rail-to-Rail Input and Output
  • Micropower: 50µA IQ, 44V Supply
  • Operating Temperature Range: −40°C to 125°C
  • Over-The-Top®: Input Common Mode Range Extends 44V Above VEE, Independent of VCC
  • Low Input Offset Voltage: 225µV Max
  • Specified on 3V, 5V and ±15V Supplies
  • High Output Current: 18mA
  • Output Shutdown
  • Output Drives 10,000pF with Output Compensation
  • Reverse Battery Protection to 27V
  • High Voltage Gain: 2000V/mV
  • High CMRR: 110dB
  • 220kHz Gain-Bandwidth Product
  • 8-Lead DFN, MSOP, PDIP and SO Packages

The LT1636 op amp operates on all single and split supplies with a total voltage of 2.7V to 44V drawing less than 50µA of quiescent current. The LT1636 can be shut down, making the output high impedance and reducing the quiescent current to 4µA. The LT1636 has a unique input stage that operates and remains high impedance when above the positive supply. The inputs take 44V both differential and common mode, even when operating on a 3V supply. The output swings to both supplies. Unlike most micropower op amps, the LT1636 can drive heavy loads; its rail-to-rail output drives 18mA. The LT1636 is unity-gain stable into all capacitive loads up to 10,000pF when a 0.22µF and 150Ω compensation network is used.

The LT1636 is reverse supply protected: it draws no current for reverse supply up to 27V. Built-in resistors protect the inputs for faults below the negative supply up to 22V. There is no phase reversal of the output for inputs 5V below VEE or 44V above VEE, independent of VCC.

The LT1636 op amp is available in the 8-pin MSOP, PDIP and SO packages. For space limited applications the LT1636 available in a 3mm × 3mm × 0.8mm dual fine pitch leadless package (DFN).

Applications

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

LT1636
Over-The-Top Micropower Rail-to-Rail Input and Output Op Amp
Over-The-Top Current Source with Shutdown Input Bias Current vs Common Mode Voltage Product Package 1 Product Package 2 Product Package 3
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Documentation

Data Sheet

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Tools & Simulations

LTspice


Models for the following parts are available in LTspice:

  • LT1636

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.

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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
DC417B

DIP8, MS8, S8, SOT23-6 | Multi-Footprint General Purpose Board for Single Op. Amp

Product Details

DC417B: Demo Board


 


DC417B
DIP8, MS8, S8, SOT23-6 | Multi-Footprint General Purpose Board for Single Op. Amp
DC417B Demo Board DC417B Demo Board DC417B Demo Board DC417B Demo Board DC417B - Schematic
DC592A
LT1636CDD | Over-The-Top, Micropower Rail-to-Rail Input and Output Op Amp in DFN Package

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