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參數資料
| 型號： | LM1042N |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 模擬信號調理 |
| 英文描述： | Fluid Level Detector |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDIP16 |
| 封裝： | N16A |
| 文件頁數： | 1/8頁 |
| 文件大小： | 170K |
| 代理商： | LM1042N |
TL/H/8709
L
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.
Features
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
a
50V transient protection on supply and control input
Y
7.5V to 18V supply range
Y
Internally regulated supply
Y
b
40
§
C to
a
80
§
C operation
Block Diagram
TL/H/8709–1
C
1995 National Semiconductor Corporation
RRD-B30M115/Printed in U. S. A.
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