Rainbow-electronics LM71 User Manual

LM71SPI/MICROWIRE 13-Bit Plus Sign Temperature SensorGeneral DescriptionThe LM71 is a low-power, high-resolution digital temperaturesensor with an SPI

2.0 Serial Bus Timing Diagrams3.0 Application HintsTo get the expected results when measuring temperaturewith an integrated circuit temperature sensor

4.0 Typical Applications20031720FIGURE 8. Temperature monitor using Intel 196 processor20031719FIGURE 9. LM71 digital input control using micro-contro

Physical Dimensions inches (millimeters) unless otherwise notedOrder Number LM71Top ViewCIMFNS Package Number MF05ALM71www.national.com 12

Physical Dimensions inches (millimeters) unless otherwise noted (Continued)Order Number LM71Bottom ViewCISDNS Package Number SDE06ANational does not a

Connection DiagramsSOT23-5 LLP-6 No Pull-Back20031702TOP VIEWNS Package Number MF05A20031728TOP VIEWNS Package Number SDE06AOrdering InformationOrder

Pin DescriptionsLabel Pin Number Function Typical ConnectionSOT23-5 LLP-6CS1 4 Chip Select input From controllerGND 2 2, 5 Power Supply Ground Connect

Absolute Maximum Ratings (Note 1)Supply Voltage −0.3V to 6.0VVoltage at any Pin −0.3V to V++ 0.3VInput Current at any Pin (Note 2) 5 mAStorage Tempera

Logic Electrical Characteristics (Continued)SERIAL BUS DIGITAL SWITCHING CHARACTERISTICS Unless otherwise noted, these specifications apply for V+= 2.

Logic Electrical Characteristics (Continued)Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC el

Electrical CharacteristicsTRI-STATE Test Circuit20031708FIGURE 5. Temperature-to-Digital Transfer Function (Non-linear scale for clarity)20031707FIGUR

Typical Performance CharacteristicsStatic Supply Current vs. Temperature Temperature Error20031796 200317971.0 Functional DescriptionThe LM71 temperat

1.0 Functional Description (Continued)1.3 TEMPERATURE DATA FORMATTemperature data is represented by a 14-bit, two’s comple-ment word with an LSB (Leas