STTS75 Digital temperature sensor and thermal watchdog

The STTS75 is a high-precision CMOS (digital) temperature sensor IC with a delta-sigma analog-to-digital (ADC) converter and an I²C-compatible serial digital interface. It is targeted for general applications such as personal computers, system thermal management, electronics equipment, and industrial controllers, and is packaged in the industry standard 8-lead MSOP(TSSOP) and SO8 packages.

The device contains a band gap temperature sensor and programmable 9- to 12-bit ADC which monitor and digitize the temperature to a resolution up to 0.0625 °C. The STTS75 is typically accurate to (±3 °C - max) over the full temperature measurement range of –55 °C to 125 °C with ±2 °C accuracy in the –25 °C to +100 °C range. At power-up, the STTS75 defaults to 9-bit resolution for software compatibility with the STLM75.

The STTS75 is specified for operating at supply voltages from 2.7 V to 5.5 V. Operating at 3.3 V, the supply current is typically (75 μA).

The onboard delta-sigma analog-to-digital converter (ADC) converts the measured temperature to a digital value that is calibrated in °C; for Fahrenheit applications a lookup table or conversion routine is required.

The STTS75 is factory-calibrated and requires no external components to measure temperature

技术特性

Measures temperatures from –55 °C to +125 °C (–67 °F to +257 °F)
- ±0.5 °C (typ) accuracy
- ±2 °C (max) accuracy from –25 °C to +100 °C
Low operating current: 75 μA (typ)
No external components required
2-wire I²C/SMBus-compatible serial interface
- Selectable serial bus address allows connection of up to eight devices on the same bus
Thermometer resolution is user-configurable from 9 (default) to 12 bits (0.5 °C to 0.0625 °C)
9-bit conversion time is 45 ms (typ)
Programmable temperature threshold and hysteresis set points
Wide power supply range-operating voltage range: 2.7 V to 5.5 V
Power saving one-shot temperature measurement
Power-up defaults permit standalone operation as thermostat
Shutdown mode to minimize power consumption
Separate open drain output pin operates as an interrupt or comparator/thermostat output (dual purpose event pin)
Packages:
- SO8
- MSOP8 (TSSOP8)

功能框图

STTS75 订购信息

订购型号	产品状态	美金价格	数量	封装	包装形式	温度范围	材料声明
STTS75M2F	Active		1000	SO-8	Tape And Reel	-55 °C-125 °C	STTS75M2F
STTS75DS2F	Active		1000	MSOP/TSSOP 8	Tape And Reel	-55 °C-125 °C	STTS75DS2F

DATASHEET

描述	版本	大小
STTS75 :Digital temperature sensor and thermal watchdog	11	674KB

USER MANUALS

描述	版本	大小
UM0690: STEVAL-IFS012V1 demonstration board for multiple temperature sensors	1	2190KB
UM0963: STEVAL-IFS012V1 demonstration board based on multiple temperature sensors and RTCs	1	2214KB

FLYERS

描述	版本	大小
FLSENSFAM0209 : STTS75	1.0	707KB