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 to +125)` Low power consumption (typically 1 mA)`Fully protected inputs`Input open circuit detection`Operation guaran...
LM9044: 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 to +125)` Low pow...
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`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 to +125)
` Low power consumption (typically 1 mA)
`Fully protected inputs
`Input open circuit detection
`Operation guaranteed over the entire automotive temperature range (-40 to +125)
`Single supply operation
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 to +125) 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 MX.
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 the external reference voltage).