Single Operational Amplifier, 50 µV Offset, 0.25 µV/°C, Zero-Drift Precision, Low Power

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Overview

The NCS325 is a CMOS operational amplifier providing precision performance. The Zero−Drift architecture allows for continuous auto−calibration, which provides very low offset, near−zero drift over time and temperature, and near flat 1/f noise at only 35 µA (max) quiescent current. These benefits make it ideal for precision DC applications. The NCS325 provides rail−to−rail input and output performance and is optimized for low voltage operation as low as 1.8 V and up to 5.5 V. The NCS325 is available in the space saving SOT23−5 package.

  • Current Sensing
  • Differential Amplification
  • Transducer Applications
  • Battery Powered Instruments
  • Electronic Scales
  • Medical Instrumentation
  • Low Offset Voltage: 14 µV typ, 50 µV max at 25°C
  • Zero Drift: 0.25 µV/°C max
  • Low Noise: 1 µVpp, 0.1 Hz to 10 Hz
  • Quiescent Current: 21 µA typ, 35 µA max at 25°C
  • Rail−to−Rail Input and Output
  • Internal EMI Filtering
  • Supply Voltage: 1.8 V to 5.5 V

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CAD Models

Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Rail to Rail

Channels

VS Min (V)

VS Max (V)

Iq Typ (mA)

VOS Max (mV)

GBW Typ (MHz)

SR Typ (V/µs)

IO Typ (mA)

ΔVOS/ΔT (μV/C)

eN (nV/√Hz)

Ibias Typ (pA)

CMRR Typ (dB)

Architecture

Temperature Range (°C)

Reference Price

NCS325SN2T1G

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Active

CAD Model

Pb

A

H

P

TSOP-5 / SOT-23-5

1

260

REEL

3000

Y

Input/Output

1

1.8

5.5

0.021

0.05

0.35

0.16

5

14

100

50

108

CMOS

-40 to 125

$0.2607

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