Low Power Operational Amplifier with Shutdown and Rail to Rail I/O

Overview

The LMV981 Single and LMV982 Dual are CMOS low-voltage op-amps which can operate on single-sided power supplies (1.8 V to 5.0 V) with rail-to-rail input and output swing. Both devices come in small state-of-the-art packages and require very low quiescent current making them ideal for battery-operated, portable applications such as notebook computers and hand-held instruments. Rail-to-Rail operation provides improved signal-to-noise performance plus the small packages allow for closer placement to signal sources thereby reducing noise pickup. The single LMV931 is offered in space saving SC70-5 package. The dual LMV932 is in a Micro8. These small packages are very beneficial for crowded PCBs. Further reduction of power consumption is available with the addition of a shutdown function in the LMV981 Single and LMV982 Dual. All other functions and performance are the same as the LMV931/932. Shutdown is implemented by driving the SHDN pin LOW.

  • Reference Buffers
  • Current Shunt Monitors

  • PDAs
  • Notebook Computers

  • Performance Specified on Single-sided Power Supply: 1.8, 2.7, 5 V
  • Extended Industrial Temperature Range: -40C to +125C
  • Includes Shutdown feature which reduces Quiescent Current to 1uA, max

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CAD Models

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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

LMV982MUTAG

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Active

CAD Model

Pb

A

H

P

UQFN-10

1

260

REEL

3000

Y

Input/Output

2

1.8

5

0.075

7.5

1.5

0.48

80

5.5

50

1000

70

Bipolar

-40 to 125

$0.0986

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