Summary of TEXAS INSTRUMENTS ANNOUNCES ULTRA-THIN, 1.2-V TO 1.8-V SUPPLY, HIGH ACCURACY DIGITAL TEMPERATURE SENSOR WITH I2C INTERFACE
Texas Instruments announced the TMP114, an ultra-thin (0.15 mm) 4-pin high-precision digital temperature sensor with I2C/SMBus compatibility. It delivers ±0.3 °C accuracy (–10 °C to +85 °C), 16-bit ADC resolution (0.0078 °C), low supply range (1.08–1.98 V), and very low power (0.7 μA active, 0.16 μA shutdown). The sensor supports 1.2-V logic inputs, optional CRC checksum, NIST traceability, and comes in a PicoStar DSBGA package for placement under surface-mount components.
Parts used in the TMP114 Temperature Sensor Project:
- TMP114 temperature sensor (ultra-thin 4-ball PicoStar DSBGA package)
- I2C/SMBus-compatible interface (on-chip, part of TMP114)
- On-chip 16-bit ADC (part of TMP114)
- Power supply (1.08 V to 1.98 V)
- 1.2-V compatible logic inputs (interface requirement)
- Optional CRC checksum feature (firmware/communication option)
- Surface-mount components under which TMP114 can be placed (PCB mounting context)
- NIST-traceable production test setup (calibration/testing process)
Texas Instruments has announced the high-precision temperature sensor TMP114 with an I2C-compatible digital output in an ultra-thin (0.15 mm) 4-pin package. With a low height package, the TMP114 can be put under surface mount components for the fastest and most accurate temperature measurement and supports the latest thin form factor systems.
The TMP114 has an accuracy of ±0.3 °C and offers an on-chip 16-bit analog-to-digital converter (ADC) that provides a temperature resolution of 0.0078 °C.
Internal Diagram
The TMP114 is designed to operate from a supply voltage range of 1.08 V to 1.98 V, with a low average supply current of less than 0.7 μA. The low supply support, along with extremely low power consumption, is designed for battery-powered applications. The TMP114 is 100% tested on a production setup that is NIST traceable.
Features
- High Accuracy
- ±0.3 °C maximum from –10 °C to +85 °C
- ±0.5 °C maximum from –40 °C to +125 °C
- ±0.1 °C typical
- Operating Temperature Range: –40 °C to +125 °C
- 16-bit Resolution: 0.0078 °C (LSB)
- Low Power Consumption:
- 0.7-μA Average Supply Current
- 0.16-μA Shutdown Current
- Supply Range of 1.08 V to 1.98 V
- 1.2-V Compatible Logic Inputs Regardless of Supply
- I2C and SMBus Compatible Interface
- Optional Cyclic Redundancy Check (CRC) Checksum
- NIST Traceability
- Ultra-Thin 4-Ball PicoStar (DSBGA) Package
- What is the accuracy of the TMP114?
The TMP114 has ±0.3 °C maximum accuracy from –10 °C to +85 °C and ±0.5 °C maximum from –40 °C to +125 °C, with ±0.1 °C typical. - What resolution does the TMP114 provide?
It offers 16-bit resolution with an LSB of 0.0078 °C using its on-chip ADC. - What supply voltage does the TMP114 require?
The TMP114 operates from a supply voltage range of 1.08 V to 1.98 V. - How low is the TMP114 power consumption?
Typical average supply current is less than 0.7 μA and shutdown current is 0.16 μA. - Is the TMP114 compatible with 1.2-V logic?
Yes, it supports 1.2-V compatible logic inputs regardless of supply. - What communication interfaces does the TMP114 support?
It supports I2C and SMBus compatible interfaces. - Does the TMP114 support error checking on data?
Yes, it offers an optional cyclic redundancy check CRC checksum. - What package does the TMP114 come in?
The device comes in an ultra-thin 4-ball PicoStar DSBGA package with a 0.15 mm height. - Is the TMP114 suitable for battery-powered applications?
Yes, its low supply range and extremely low power consumption are designed for battery-powered applications. - Is the TMP114 production tested for traceability?
Yes, it is 100% tested on a production setup that is NIST traceable.
