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LTC1053CSW#PBF

Quad zero-drift op-amp, 5uV Vos, 0.05uV/C drift, 1.5uA/amplifier, SOIC-16W

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Manufacturer Part：

LTC1053CSW#PBF

Package：

16-lead SOIC W (10.3 x 7.5 x 2.35mm)

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Description

Product Overview

The LTC1053CSW#PBF is a quad precision zero-drift operational amplifier from Analog Devices (formerly Linear Technology) using chopper stabilization to achieve 5uV max offset voltage and 0.05uV/C drift. With only 1.5uA supply current per amplifier and operation from single 4.75V to 15.5V supplies, it is ideal for precision low-power applications.

Key Specifications

Channels Quad
Offset Voltage 5uV max
Offset Drift 0.05uV/C
Supply Current 1.5uA per amplifier
Supply Voltage 4.75V to 15.5V (single) or +/-2.4V to +/-7.75V
Gain Bandwidth Product 200kHz
Input Bias Current 5pA typical
Package 16-lead SOIC (W)
Operating Temperature 0 to +70C

Features

  • Ultra-low 5uV max offset voltage
  • 0.05uV/C offset voltage drift
  • Only 1.5uA supply current per amplifier
  • 5pA input bias current
  • Chopper-stabilized zero-drift architecture
  • 200kHz gain bandwidth product
  • No external clock required
  • Overload recovery within 1ms

Applications

  • Precision instrumentation
  • Medical monitoring equipment
  • Strain gauge amplifiers
  • Thermocouple signal conditioning
  • Low-drift filter circuits

The LTC1053CSW#PBF is a quad precision zero-drift operational amplifier from Analog Devices using chopper stabilization to achieve exceptional DC precision with only 5uV maximum offset voltage and 0.05uV/C drift. With ultra-low 1.5uA supply current per amplifier and 5pA input bias current, this device is optimized for precision low-power applications such as medical instrumentation, strain gauge amplification, and thermocouple signal conditioning. The internal chopper circuit operates continuously without requiring an external clock.

The LTC1053 uses a chopper-stabilized architecture where the main amplifier is continuously auto-zeroed by an auxiliary nulling amplifier. The nulling amplifier periodically measures and cancels the offset of the main amplifier, effectively reducing the offset voltage to near zero. This auto-zeroing cycle occurs at an internal clock frequency, and since the process is continuous, the offset drift is virtually eliminated. The result is a DC precision amplifier with microvolt-level offset that does not degrade over temperature or time.

Pin Name Type Function
1 OUT A Output Amplifier A output
2 -IN A Input Amplifier A inverting input
3 +IN A Input Amplifier A non-inverting input
4 V- Power Negative supply
5 +IN B Input Amplifier B non-inverting input
6 -IN B Input Amplifier B inverting input
7 OUT B Output Amplifier B output
8 OUT C Output Amplifier C output
9 -IN C Input Amplifier C inverting input
10 +IN C Input Amplifier C non-inverting input
11 V+ Power Positive supply
12 +IN D Input Amplifier D non-inverting input
13 -IN D Input Amplifier D inverting input
14 OUT D Output Amplifier D output
  • Medical ECG/EEG signal conditioning
  • Strain gauge bridge amplifiers
  • Thermocouple cold junction compensation
  • Precision current sensing circuits
  • Low-drift active filter implementations
Manufacturer Part Number Package Notes
ADI LTC1050CSW#PBF SOIC-16W Dual zero-drift op-amp
TI OPA4188AIDR SOIC-14 Quad zero-drift alternative
Microchip MCP6V94-E/SL SOIC-14 Quad zero-drift op-amp
ADI ADA4522-4ARZ SOIC-16 Next-gen zero-drift quad
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