LM94023BITME NSC [National Semiconductor], LM94023BITME Datasheet - Page 13

• Manufacturer Part Number: LM94023BITME
• Description: 1.5V, micro SMD, Dual-Gain Analog Temperature Sensor with Class AB Output
• Manufacturer: NSC [National Semiconductor]

7.0 Applications Circuits
30075018
FIGURE 4. Celsius Thermostat
30075019
FIGURE 5. Conserving Power Dissipation with Shutdown
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Most CMOS ADCs found in microcontrollers and ASICs have a sampled data comparator input structure. When the ADC charges
the sampling cap, it requires instantaneous charge from the output of the analog source such as the LM94023 temperature sensor
and many op amps. This requirement is easily accommodated by the addition of a capacitor (C
). The size of C
depends
FILTER
FILTER
on the size of the sampling capacitor and the sampling frequency. Since not all ADCs have identical input stages, the charge
requirements will vary. This general ADC application is shown as an example only.
FIGURE 6. Suggested Connection to a Sampling Analog-to-Digital Converter Input Stage
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