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LM1042N View Datasheet(PDF) - National ->Texas Instruments

Part NameLM1042N National-Semiconductor
National ->Texas Instruments National-Semiconductor
DescriptionFluid Level Detector
LM1042N Datasheet PDF : 8 Pages
1 2 3 4 5 6 7 8
February 1995
LM1042 Fluid Level Detector
General Description
The LM1042 uses the thermal-resistive probe technique to
measure the level of non-flammable fluids An output is pro-
vided proportional to fluid level and single shot or repeating
measurements may be made All supervisory requirements
to control the thermal-resistive probe including short and
open circuit probe detection are incorporated within the de-
vice A second linear input for alternative sensor signals
may also be selected
Y Selectable thermal-resistance or linear probe inputs
Y Control circuitry for thermal-resistive probe
Y Single-shot or repeating measurements
Y Switch on reset and delay to avoid transients
Y Output amplifier with 10 mA source and sink capability
Y Short or open probe detection
Y a50V transient protection on supply and control input
Y 7 5V to 18V supply range
Y Internally regulated supply
Y b40 C to a80 C operation
Block Diagram
C1995 National Semiconductor Corporation TL H 8709
TL H 8709 – 1
RRD-B30M115 Printed in U S A
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