The LM1042 is a fluid level detector that uses a thermal-resistive probe technique to measure the level of non-flammable fluids. It provides an output signal proportional to the fluid level and supports single-shot or repeating measurements. The device incorporates all the necessary control circuitry for the thermal-resistive probe, including short and open circuit probe detection. It also features a second linear input for alternative sensor signals.
The National Semiconductor LM1042 is a fluid level detector that utilizes the thermal-resistive probe technique to measure the level of non-flammable fluids. The device incorporates control circuitry for thermal-resistive probes, including short and open circuit detection, and supports both single-shot or repeating measurements.
| Supply Voltage Range | 7.5V to 18V |
|---|---|
| Operating Temperature Range | -40°C to +80°C |
| Output Current Capability | 10 mA source and sink |
| Probe 1 Gain Range | 80 mV to 520 mV |
| Probe 2 Gain Range | 240 mV to 1.562V |
| Supply Current (Typical) | 35 mA |
The device is designed to measure the level of non-flammable fluids.
The device measures the level of non-flammable fluids.
The device operates from -40°C to +80°C.
The maximum supply voltage is 18V.