Datasheet > 传感器/换能器 > 温度传感器> LM94022QBIMG

LM94022QBIMG

更新时间： 2024-01-16 10:06:05

品牌	Logo	应用领域
美国国家半导体 - NSC		传感器温度传感器
页数	文件大小	规格书
16页	965K
描述
1.5V, SC70, Multi-Gain Analog Temperature Sensor with Class-AB Output

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LM94022QBIMG 数据手册

December 6, 2007

LM94022/LM94022Q

1.5V, SC70, Multi-Gain Analog Temperature Sensor with

Class-AB Output

General Description

The LM94022 is a precision analog output CMOS integrated-

Appliances

Disk Drives

■

Games

circuit temperature sensor that operates at a supply voltage

as low as 1.5 Volts. A class-AB output structure gives the

LM94022 strong output source and sink current capability for

driving heavy loads. For example, it is well suited to source

the input of a sample-and-hold analog-to-digital converter

with its transient load requirements. While operating over the

wide temperature range of −50°C to +150°C, the LM94022

delivers an output voltage that is inversely porportional to

measured temperature. The LM94022's low supply current

makes it ideal for battery-powered systems as well as general

temperature sensing applications.

Features

LM94022Q is AEC-Q100 Grade 0 qualified and is

■

manufactured on an Automotive Grade Flow.

Low 1.5V operation

■

Push-pull output with 50µA source current capability

Four selectable gains

Very accurate over wide temperature range of −50°C to

+150°C

Two logic inputs, Gain Select 1 (GS1) and Gain Select 0

(GS0), select the gain of the temperature-to-voltage output

transfer function. Four slopes are selectable: −5.5 mV/°C,

−8.2 mV/°C, −10.9 mV/°C, and −13.6 mV/°C. In the lowest

gain configuration (GS1 and GS0 both tied low), the LM94022

can operate with a 1.5V supply while measuring temperature

over the full −50°C to +150°C operating range. Tying both

inputs high causes the transfer function to have the largest

gain of −13.6 mV/°C for maximum temperature sensitivity.

The gain-select inputs can be tied directly to V_DDor Ground

without any pull-up or pull-down resistors, reducing compo-

nent count and board area. These inputs can also be driven

by logic signals allowing the system to optimize the gain dur-

ing operation or system diagnostics.

Low quiescent current

■

Output is short-circuit protected

Extremely small SC70 package

Footprint compatible with the industry-standard LM20

temperature sensor

Key Specifications

■ꢀSupply Voltage

1.5V to 5.5V

5.4 μA (typ)

±50 μA

■ Supply Current

■ Output Drive

■ꢀTemperature

Accuracy

20°C to 40°C

-50°C to 70°C

-50°C to 90°C

-50°C to 150°C

±1.5°C

±1.8°C

±2.1°C

±2.7°C

Applications

Cell phones

■

■ꢀOperating

Temperature

Wireless Transceivers

−50°C to 150°C

Battery Management

Automotive

Connection Diagram

Typical Transfer Characteristic

SC70-5

Output Voltage vs Temperature

20143001

Top View

See NS Package Number MAA05A

20143024

201430

www.national.com

12 3 4 5 6 7...16

中文翻译

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与LM94022QBIMG相关器件

型号	品牌	获取价格	描述	数据表
LM94022QBIMG/NOPB	TI	获取价格	1.5-V, SC70, Multi-Gain Analog Temperature Sensor With Class-AB Output
LM94022QBIMGX	NSC	获取价格	1.5V, SC70, Multi-Gain Analog Temperature Sensor with Class-AB Output
LM94022QBIMGX/NOPB	TI	获取价格	1.5-V, SC70, Multi-Gain Analog Temperature Sensor With Class-AB Output
LM94023	NSC	获取价格	1.5V, micro SMD, Dual-Gain Analog Temperature Sensor with Class AB Output
LM94023	TI	获取价格	具有多增益和 AB 类模拟输出且采用 WCSP 封装的 ±1.5°C 温度传感器
LM94023_15	TI	获取价格	1.5V, micro SMD, Dual-Gain Analog Temperature Sensor with Class AB Output
LM94023BITME	NSC	获取价格	1.5V, micro SMD, Dual-Gain Analog Temperature Sensor with Class AB Output
LM94023BITME/NOPB	TI	获取价格	1.5V, micro SMD, Dual-Gain Analog Temperature Sensor with Class AB Output
LM94023BITMX	NSC	获取价格	1.5V, micro SMD, Dual-Gain Analog Temperature Sensor with Class AB Output
LM94023BITMX/NOPB	TI	获取价格	1.5V, micro SMD, Dual-Gain Analog Temperature Sensor with Class AB Output

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