TMP7 Datasheet, PDF (1/10 Pages) ABCircuits – Thermometer with Seven Segment and Serial Output

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TMP7 IC
Thermometer with Seven Segment and Serial Output
General Description
The TMP7 is thermometer IC with seven segment outputs for non multiplexed displays. An
inexpensive thermister is used as the temperature sensor. The IC supports 4 scales: degrees C,
degrees F, percentage, and raw A/D output. Serial output is also provided for RS-232, USB, or
Ethernet operation. The chip provides output polarity control. The TMP7 has internal pull
resistors on inputs to minimize additional parts. A .1 uF bypass capacitor is suggested across the
VDD and VSS pins. The part uses the standard 28 pin .3 inch width SOIC and DIP packages.
Features
• Degrees C, Degrees F, percentage
and raw data outputs.
• Can drive seven segment displays
and serial devices.
• Minimum and maximum
temperatures .
• Percentage scale.
• 12 bit A/D converter
• Few external parts required.
• Low power consumption 20 mA
typical.
• Supply voltage 3.3 to 5.25 volts.
• All timing internally generated.
• On chip input resistors.
• Output polarity select.
• TTL and CMOS compatible.
• Part is in full production.
• SOIC and DIP 28 Pin Package.
• ROHS Compliant
• Low EMI
Applications
• Temperature displays.
• Remote temperature sensing.
• Remote 12 bit A/D converter.
• Environmental and process controls .
• Percentage displays.
Part Number TMP7
Copyright © 2014 ABCircuits. Revised September 2014 Page 1 of 10