LTC1049 - Low Power Zero-Drift Operational Amplifier with Internal Capacitors

The LTC1049 is a high performance, low power zero-drift operational amplifier. The two sample-and-hold capacitors usually required externally by other chopper stabilized amplifiers are integrated on the chip. Further, the LTC1049 offers superior DC and AC performance with a nominal supply current of only 200µA.

The LTC1049 has a typical offset voltage of 2µV, drift of 0.02µV/°C, 0.1Hz to 10Hz input noise voltage of 3µVP-P and typical voltage gain of 160dB. The slew rate is 0.8V/µs with a gain bandwidth product of 0.8MHz.

Overload recovery time from a saturation condition is 6ms, a significant improvement over chopper amplifiers using external capacitors.

The LTC1049 is available in a standard 8-pin plastic dual in line, as well as an 8-pin SO package. The LTC1049 can be a plug-in replacement for most standard op amps with improved DC performance and substantial power savings.

Features
  • Low Supply Current: 200µA
  • No External Components Required
  • Maximum Offset Voltage: 10µV
  • Maximum Offset Voltage Drift: 0.1µV/°C
  • Single Supply Operation: 4.75V to 16V
  • Input Common Mode Range Includes Ground
  • Output Swings to Ground
  • Typical Overload Recovery Time: 6ms
  • Available in 8-Pin SO and PDIP Packages
Typical Application
LTC1049 Typical Application
Applications
  • 4mA to 20mA Current Loops
  • Thermocouple Amplifiers
  • Electronic Scales
  • Medical Instrumentation
  • Strain Gauge Amplifiers
  • High Resolution Data Acquisition
Packaging
LTC1049 Package Drawing
LTC1049 Package Drawing
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LTC1049CN8#PBFN-8C$2.70$2.15
LTC1049CS8#PBFSO-8C$3.35$2.70
LTC1049CS8#TRPBFSO-8C$2.76
Demo Boards
Part NumberDescriptionPrice
DC417BDIP8, MS8, S8, SOT23-6 | Multi-Footprint General Purpose Board for Single Op. Amp$25.00
Datasheet
Design Note
Reliability Data
CAD Symbol
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R062 Reliability Data
LTC1049 Footprints and Symbols