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LM9044

    Lambda Sensor Interface Amplifier
Generic P/N 9044

Contents

Parametric Table
 Function   Lambda or Oxygen Sensor 

General Description

The LM9044 is a precision differential amplifier specifically designed for operation in the automotive environment. Gain accuracy is guaranteed over the entire automotive temperature range (-40°C to +125°C) and is factory trimmed prior to package assembly. The input circuitry has been specifically designed to reject common-mode signals as much as 3V below ground on a single positive power supply. This facilitates the use of sensors which are grounded at the engine block while the LM9044 itself is grounded at chassis potential. An external capacitor sets the maximum operating frequency of the amplifier, thereby filtering high frequency transients. Both inputs are protected against accidental shorting to the battery and against load dump transients. The input impedance is typically 1 M Ohm.

The output op amp is capable of driving capacitive loads and is fully protected. Also, internal circuitry has been provided to detect open circuit conditions on either or both inputs and force the output to a "home" position (a ratio of the external reference voltage).


Features

  • Normal circuit operation guaranteed with inputs up to 3V below ground on a single supply
  • Gain factory trimmed and guaranteed over temperature (±3% of full-scale from -40°C to +125°C)
  • Low power consumption (typically 1 mA)
  • Fully protected inputs
  • Input open circuit detection
  • Operation guaranteed over the entire automotive temperature range (-40°C to +125°C)
  • Single supply operation

Datasheet

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(in Kbytes)
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LM9044 Lambda Sensor Interface Amplifier 125 Kbytes 7-Jan-96 View Online Download Receive via Email

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Package Availability, Models, Samples & Pricing

Part NumberPackageStatusModelsSamples
&
Electronic
Orders
Budgetary PricingStd
Pack
Size
Package
Marking
Type# pinsSPICEIBISQuantity$US each
LM9044VPLCC20Full productionN/AN/A 
Buy Now
1K+$1.5800tube
of
40
[logo]¢U¢Z¢2¢T
LM9044V
LM9044VXPLCC20Full productionN/AN/A 
Buy Now
1K+$1.5800reel
of
1000
[logo]¢U¢Z¢2¢T
LM9044V

[Information as of 3-Oct-2001]
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