Overview

Features and Benefits

  • Supply Current 150μA (Max per Amplifier)
    Guaranteed from –40°C to 85°C
  • Offset Voltage 3μV (Max, –40°C to 85°C)
  • Offset Voltage Drift 30nV/°C (Max, –40°C to 85°C)
  • Common Mode Input Range from V to V+ – 0.5V
  • Output Swings Rail-to-Rail
  • Voltage Gain: 140dB (Typ)
  • PSRR and CMRR: 130dB (Typ)
  • Input Bias Current: 1pA (Typ, 25°C)
  • Noise: 1.6μVP-P (0.01Hz to 10Hz Typ)
  • Supply Operation:
    • 2.7V to 6V (LTC2054/LTC2055)
    • 2.7V to ±5.5V (LTC2054HV/LTC2055HV)
  • Low Profile (1mm) SOT-23, MS8 and 3mm × 3mm × 0.8mm DFN Packages

Product Details

The LTC2054/LTC2055 are low power, low noise, single/dual, zero-drift operational amplifiers with an extended temperature version (LTC2054MP) that has guaranteed specifications from –55°C to 150°C. They are available in SOT-23 (ThinSOT) and MS8 packages. For space limited applications, the LTC2055 is also available in a 3mm × 3mm × 0.8mm dual fine pitch leadless package (DFN). They operate from a single 2.7V minimum supply and support ± 5V applications. The current consumption is typically 150μA for the LTC2054 and 130μA/amp for the LTC2055.

The LTC2054/LTC2055, despite their miniature size, feature uncompromising DC performance. The maximum input offset voltage and offset drift are 3.0μV and 30nV/°C over the –40°C to 85°C industrial temperature range. The almost zero DC offset and drift are supported with a power supply rejection ratio (PSRR) and common mode rejection ratio (CMRR) of 130dB (typ).

The input common mode voltage ranges from the negative supply up to typically 0.5V below the positive supply. The open-loop gain is typically 140dB. The LTC2054/LTC2055 also feature a 1.6μVP-P DC to 10Hz noise and a 500kHz 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
  • Battery-Powered Systems

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Tools & Simulations

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.

LTspice

Models for the following parts are available in LTspice:

LTC2055

Product Recommendations

LTC2055 Companion Parts

Recommended Related Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

Discussions

LTC2055 Discussions

Re: AD7466 VIN drops issue
17 week(s) ago in Precision ADCs
AD7466 VIN drops issue
18 week(s) ago in Precision ADCs
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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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