TMP235A2DCKT传感器变送器的温度传感器-模拟数字输出规格书PDF中文资料

1 Features

• Cost-effective alternative to thermistors

• Tight accuracy across a wide temperature range:

– ±2.5°C (maximum): –40°C to +150°C

(TMP235)

– ±2.5°C (maximum): –10°C to +125°C

(TMP236)

• Available in two accuracy level variants:

– A2 level: ±0.5°C (typical)

– A4 level: ±1°C (typical)

• Positive slope sensor gain, offset (typical):

– 10 mV/°C, 500 mV at 0°C (TMP235)

– 19.5 mV/°C, 400 mV at 0°C (TMP236)

• Wide operating supply voltage range:

– 2.3 V to 5.5 V (TMP235)

– 3.1 V to 5.5 V (TMP236)

• Short-circuit protected output

• Low power: 9 μA (typical)

• Strong output for driving loads up to 1000 pF

• Available package options:

– 5-pin SC70 (DCK) surface mount

– 3-pin SOT-23 (DBZ) surface mount

– Footprint compatible with industry-standard

LMT8x-Q1 and LM20 temperature sensors

2 Applications

• Grid infrastructure

• Wireless and telecom infrastructure

• Automotive infotainment

• Factory automation and control

• Test and measurement

3 Description

The TMP23x devices are a family of precision CMOS

integrated-circuit linear analog temperature sensors

with an output voltage proportional to temperature

engineers can use in multiple analog temperaturesensing

applications. These temperature sensors are

more accurate than similar pin-compatible devices on

the market, featuring typical accuracy from 0°C to

+70°C of ±0.5°C. The increased accuracy of the

series is designed for many analog temperaturesensing

applications.The TMP235 device provides a

positive slope output of 10 mV/°C over the full –40°C

to +150°C temperature range and a supply range

from 2.3 V to 5.5 V. The higher gain TMP236 sensor

provides a positive slope output of 19.5 mV/°C from

–10°C to +125°C and a supply range from 3.1 V to

5.5 V.

The 9-μA typical quiescent current and 800-μs typical

power-on time enable effective power-cycling

architectures to minimize power consumption for

battery-powered devices. A class-AB output driver

provides a strong 500-μA maximum output to drive

capacitive loads up to 1000 pF and is designed to

directly interface to analog-to-digital converter sample

and hold inputs. With excellent accuracy and a strong

linear output driver, the TMP23x analog output

temperature sensors are cost-effective alternatives to

passive thermistors.