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Comparison of Chopper-Stabilized and Precision Bipolar Operational Amplifiers

Technical comparison of chopper-stabilized and precision bipolar op amps, evaluating offset voltage, drift, noise, bandwidth, and supply voltage requirements.

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Overview

This design document provides a comparative analysis between CMOS chopper-stabilized and precision bipolar operational amplifiers. It evaluates key performance metrics including input offset voltage, offset drift, and wideband noise. Chopper-stabilized amplifiers generally provide superior DC specifications, such as 5μV maximum offset voltage and 0.05μV/°C drift. Bipolar amplifiers are characterized as better for wideband applications and low-frequency noise performance, specifically from 10Hz to 1kHz. The document highlights the LTC1150 as a chopper-stabilized exception capable of ±15V operation. Performance tables and noise density comparisons are included for a wide range of Linear Technology components.

Use Cases

  • Precision DC signal conditioning
  • Low-frequency sensor instrumentation
  • Wideband audio amplification
  • Micropower signal processing
  • High-voltage precision analog circuits

Topics

LT1001
OP-07
LT1007
LT1028
LT1037
LT1115
LTC1150
LT1097CN8
LTC1050CN8
LTC1049
LTC1050
LTC1051

Referenced Parts

LT1001

Linear Technology

industry standard LT® 1001

LT1006

Linear Technology

LT1006 Single Supply

LT1007

Linear Technology

low noise, such as the LT1007

LT1012

Linear Technology

LT1012 Single

LT1013

Linear Technology

LT1013 Dual

LT1014

Linear Technology

LT1014 Quad

LT1028

Linear Technology

LT1028

LT1037

Linear Technology

LT1037

LT1077

Linear Technology

LT1077 Single Supply Micropower

LT1078

Linear Technology

LT1078 Dual

LT1079

Linear Technology

LT1079 Quad

LT1097

Linear Technology

LT1097 Single

LT1097CN8

Linear Technology

the 1000 piece price of the LT1097CN8

LT1115

Linear Technology

LT1115

LT1178

Linear Technology

LT1178 Micropower Dual

LT1179

Linear Technology

LT1179 Micropower Quad

LTC1049

Linear Technology

LTC1049 Single, Micropower

LTC1050

Linear Technology

LTC1050 Single, Low Power

LTC1050CN8

Linear Technology

versus the LTC1050CN8’s $2.10

LTC1051

Linear Technology

LTC1051 Dual, Low Power

LTC1052

Linear Technology

LTC1052 Single, 7652 Upgrade

LTC1053

Linear Technology

LTC1053 Quad, Low Power

LTC1150

Linear Technology

The new LTC ® 1150 is the exception

OP-07

Linear Technology

industry standard LT® 1001 and OP-07