TMP112AQDRLRQ1

The TMP112-Q1 device is a digital temperature
sensor designed for NTC/PTC thermistor replacement
where high accuracy is required. The device offers
an accuracy of ±0.5°C without requiring calibration
or external component signal conditioning. Device
temperature sensors are highly linear and do not
require complex calculations or lookup tables to
derive the temperature. The calibrating for improved
accuracy feature allows users to calibrate for an
accuracy as good as ±0.17°C (see the Calibrating for
Improved Accuracy section). The on-chip 12-bit ADC
offers resolutions down to 0.0625°C.
The 1.6-mm × 1.6-mm SOT563 package is 68%
smaller footprint than an SOT23 package. The
TMP112-Q1 device features SMBus™, two-wire and
I
2C interface compatibility, and allows up to four
devices on one bus. The device also features an
SMBus alert function. The device is specified to
operate over supply voltages from 1.4 to 3.6 V with
the maximum quiescent current of 10 µA over the full
operating range.

Category: Temperature Sensors

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SPECIFICATION

• AEC-Q100 qualified with:
– Temperature grade 1: –40°C to 125°C Ambient
Operating Temperature Range
– Device HBM ESD classification level 2
– Device CDM ESD classification level C6
• Functional Safety-Capable
– Documentation available to aid functional safety
system design
• SOT563 package (1.6 mm × 1.6 mm) is a 68%
smaller footprint than SOT23
• Accuracy without calibration:
– 0.5°C (maximum) from 0°C to 65°C
– 1°C (maximum) from –40°C to 125°C
• Low quiescent current:
– 10-μA active (maximum)
– 1-μA shutdown (maximum)
• Supply range: 1.4 to 3.6 V
• Resolution: 12 bits
• Digital output: SMBus, two-wire and I2C interface
compatibility
• NIST traceable