1 Features

• Ultra-small, ultra-thin PicoStar™ package:

– Size: 0.55 × 0.61 × 0.24mm

– Small thermal mass: 0.092mJ/°C

• High-accuracy (VDD= 1.62V to 3.6V):

– ±0.05°C (typical) from 0°C to 50°C

– ±0.1°C (maximum) from 20°C to 50°C

– ±0.15°C (maximum) from 0°C to 50°C

– ±0.2 °C (maximum) from –20°C to 85°C

– ±0.4 °C (maximum) from –40°C to 125°C

• Supply range: 1.4V to 5.5V

• 16-bit resolution: 0.0078125°C (LSB)

• Measurement averaging: 0, 4, 8 averages

• Low power consumption:

– 1.4μA average current, 1Hz conversion cycle

– 65nA sleep current

• Flexible digital interface:

– 1.2V compatible logic (independent of VDD)

– I2C and SMBusTM compatible

– I3C Mixed Bus co-existence capable

• NIST traceable: 48-bit unique ID

• Medical grade:

– Helps meet ASTM E1112 and ISO 80601-2-56

• GUI-Based C-Code Generator

2 Applications

• Mobile Phones

• Smartwatch

• Smart Trackers

• Tablets

• Medical Sensor Patches

3 Description

The TMP118 is an ultra-small, ultra-thin digital

temperature sensor in a PicoStar™ package, with an

area of 0.336mm2, and a maximum height of 240μm.

The TMP118 has 16-bit resolution with an LSB of

7.8125m°C, achieving ±0.1°C (max accuracy) from

20°C to 50°C with no additional calibration, which

helps meet the system level ASTM E1112 and ISO

80601 accuracy standard for medical-grade electronic

thermometers.

Designed for low-power operation, the TMP118

operates from supply voltages as low as 1.4V

(up to 5.5V) and draws 55μA when actively

converting (approximately 1.4μA at a 1Hz sample

rate) and 65nA in shutdown mode, enabling ondemand

measurements while maximizing battery life

in portable or wearable devices. The TMP118 has an

interface that is I2C- and SMBus-compatible and has

programmable alert flag functionality. The sensor also

supports logic levels down to 1.2V without requiring

a level shifter, allowing direct interfacing with lowvoltage

MCUs.

Additionally, each TMP118 includes a unique device

ID for NIST traceability. All units are factory-tested

with NIST-traceable equipment calibrated to ISO/IEC

17025 accredited standards.