LTC2051

PRODUCTION

Dual Zero-Drift Operational Amplifiers

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Overview

  • Maximum Offset Voltage of 3µV
  • Maximum Offset Voltage Drift of 30nV/°C
  • Small Footprint, Low Profile MS8/GN16 Packages
  • Single Supply Operation: 2.7V to ±5.5V
  • Noise: 1.5µVP-P (0.01Hz to 10Hz Typ)
  • Voltage Gain: 140dB (Typ)
  • PSRR: 130dB (Typ)
  • CMRR: 130dB (Typ)
  • Supply Current: 0.75mA (Typ) per Amplifier
  • Extended Common Mode Input Range
  • Output Swings Rail-to-Rail
  • Operating Temperature Range –40°C to 125°C
  • Available in 3mm × 3mm × 0.8mm DFN Package

The LTC2051/LTC2052 are dual/quad zero-drift operational amplifiers available in the MS8 and SO-8/GN16 and S14 packages. For space limited applications, the LTC2051 is available in a 3mm × 3mm × 0.8mm dual fine pitch leadless package (DFN). They operate from a single 2.7V supply and support ±5V applications. The current consumption is 750µA per op amp.

The LTC2051/LTC2052, despite their miniature size, feature uncompromising DC performance. The typical input offset voltage and offset drift are 0.5µV and 10nV/°C. The almost zero DC offset and drift are supported with a power supply rejection ratio (PSRR) and common mode rejection ratio (CMRR) of more than 130dB.

The input common mode voltage ranges from the negative supply up to typically 1V from the positive supply. The LTC2051/LTC2052 also have an enhanced output stage capable of driving loads as low as 2kΩ to both supply rails. The open-loop gain is typically 140dB. The LTC2051/ LTC2052 also feature a 1.5µVP-P DC to 10Hz noise and a 3MHz gain-bandwidth product.

Applications

  • Thermocouple Amplifiers
  • Electronic Scales
  • Medical Instrumentation
  • Strain Gauge Amplifiers
  • High Resolution Data Acquisition
  • DC Accurate RC Active Filters
  • Low Side Current Sense
LTC2051
Dual Zero-Drift Operational Amplifiers
High Performance Low Cost Instrumentation Amplifier Input Referred Noise 0.1Hz to 10Hz Product Package 1 Product Package 2 Product Package 3 Product Package 4 Product Package 5 Product Package 6
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Documentation

Data Sheet 1

Reliability Data 1

Application Note 2

Technical Articles 2

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Current Mirrors & Matched Devices 1
LT5400
RECOMMENDED FOR NEW DESIGNS Quad Matched Resistor Network
Operational Amplifiers (Op Amps) 1
LTC2055
PRODUCTION Dual Micropower Zero-Drift Operational Amplifiers
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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

  • LTC2051
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.

Latest Discussions

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LTC2051 Electrical specs -vs- packages
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