sensors

TMP102

Every spec below is cited to the manufacturer datasheet. Pick your exact ordering code, compare the closest alternatives, then ask the assistant what it means for your design.

00 — Overview

What the TMP102 family does

The TMP102 is a low-power digital temperature sensor with SMBus and two-wire serial interface in a 1.6mm × 1.6mm SOT563 package. It provides 12-bit resolution with 0.0625°C steps, 2.0°C maximum accuracy from –25°C to 85°C, and 3.0°C maximum accuracy from –40°C to 125°C. The device operates on a 1.4V to 3.6V supply with 7.5μA active current and 0.35μA shutdown current. It features an overtemperature alert function and NIST-traceable calibration. Typical applications include portable electronics, battery management, PC and notebook temperature monitoring, enterprise machines, thermostats, and general industrial or medical temperature measurements.

Next step
Start building with TMP102 → Every number above is cited straight from the datasheet — ask what they mean for your design, and the assistant answers from the same source documents.
01 — Key specifications

TMP102 datasheet parameters

ParameterMinTypMaxConditionsSource
quiescent current — 7.5 µA — TI datasheet, p. 8 — Table 6-1. Advantages of TMP112 versus TMP102
supply voltage range 1.4 V 3.3 V 3.6 V Supply voltage; v; 5.3 Recommended Operating Conditions TI datasheet, p. 4 — 5.3 Recommended Operating Conditions
operating temperature -40 °C — 125 °C Operating free-air temperature; ta; 5.3 Recommended Operating Conditions TI datasheet, p. 4 — 5.3 Recommended Operating Conditions
standby current — 150 nA — Shutdown mode (SD bit = 1), typical TI datasheet, p. 15
input capacitance — 3 pF — DIGITAL INPUT/OUTPUT TI datasheet, p. 5 — 5.5 Electrical Characteristics
operating frequency 1 kHz — 400 kHz f(scl) TI datasheet, p. 6 — 5.6 Timing Requirements
rise time — — 300 ns trc TI datasheet, p. 6 — 5.6 Timing Requirements
fall time — — 300 ns tfc TI datasheet, p. 6 — 5.6 Timing Requirements
sample rate — 4 Hz — Default conversion rate (CR1 = 1, CR0 = 0) TI datasheet, p. 15 — Table 6-5. Conversion Rate Settings
03 — Alternatives

Closest matches to TMP102

TMP112 3.3× higher standby current, 1.3× lower supply voltage range, similar fall time
MAX31865 13.8× higher sample rate, 2.0× higher input capacitance, 1.5× lower rise time
SHT30-DIS 2.5× higher sample rate, similar fall time, similar operating temperature
BME280 4.2× lower quiescent current, 1.8× lower supply voltage range, 1.7× lower operating temperature
DS18B20 5.0× higher standby current, 1.6× lower sample rate, 1.2× lower operating temperature
ICM-42607-C 1.9× lower operating temperature, 1.8× lower supply voltage range, similar fall time
LMT87 1.4× lower quiescent current, 1.2× higher supply voltage range, 1.2× higher operating temperature
LMT87DCKR 1.4× lower quiescent current, 1.2× higher supply voltage range, 1.2× higher operating temperature
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