Datasheet
Package Availability, Models, Samples & Pricing
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 after package
assembly. The input circuitry has been specifically designed to reject common-mode signals as much as 3V below ground without
the need for a negative voltage 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 on the RF pin 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 1.2 MΩ.
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).
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
|
LM9044V | SLM | 0 | 44046 | 0 | 0 | 3532500 | 1 | 1002356520
|
|
LM9044VX | SLM | 0 | 44046 | 0 | 0 | 3532500 | 1 | 1002356520
|
Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR.
The Long Term Failure Rates were calculated
at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress
temperature of 150°C to an application temperature of 55°C.
For more information on Reliability Metrics, please click here.
[Information as of 8-Nov-2009]
|
RoHS Compliance Information
