Datasheet > INA169NA250

INA169NA250

更新时间： 2024-09-17 12:08:39

品牌	Logo	应用领域
德州仪器 - TI		监视器
页数	文件大小	规格书
15页	408K
描述
High-Side Measurement CURRENT SHUNT MONITOR

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INA169NA250 数据手册

INA139

INA169

SBOS181D – DECEMBER 2000 – REVISED NOVEMBER 2005

High-Side Measurement

CURRENT SHUNT MONITOR

DESCRIPTION

FEATURES

ꢀ COMPLETE UNIPOLAR HIGH-SIDE

CURRENT MEASUREMENT CIRCUIT

ꢀ WIDE SUPPLY AND COMMON-MODE RANGE

ꢀ INA139: 2.7V to 40V

The INA139 and INA169 are high-side, unipolar, current

shunt monitors. Wide input common-mode voltage range,

high-speed, low quiescent current, and tiny SOT23 packag-

ing enable use in a variety of applications.

ꢀ INA169: 2.7V to 60V

ꢀ INDEPENDENT SUPPLY AND INPUT COMMON-

MODE VOLTAGES

ꢀ SINGLE RESISTOR GAIN SET

ꢀ LOW QUIESCENT CURRENT (60µA typ)

ꢀ SOT23-5 PACKAGE

Input common-mode and power-supply voltages are inde-

pendent and can range from 2.7V to 40V for the INA139 and

2.7V to 60V for the INA169. Quiescent current is only 60µA,

which permits connecting the power supply to either side of

the current measurement shunt with minimal error.

The device converts a differential input voltage to a current

output. This current is converted back to a voltage with an

external load resistor that sets any gain from 1 to over 100.

Although designed for current shunt measurement, the cir-

cuit invites creative applications in measurement and level

shifting.

APPLICATIONS

ꢀ CURRENT SHUNT MEASUREMENT:

Automotive, Telephone, Computers

ꢀ PORTABLE AND BATTERY-BACKUP

SYSTEMS

Both the INA139 and INA169 are available in SOT23-5

packages and are specified for the –40°C to +85°C industrial

temperature range.

ꢀ BATTERY CHARGERS

ꢀ POWER MANAGEMENT

ꢀ CELL PHONES

ꢀ PRECISION CURRENT SOURCE

I_S

R_S

V_IN+

Up to 60V

V_IN+

V_IN–

Load

1kΩ

V+

OUT

V_O= I_SR_SR_L/1kΩ

GND

R_L

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

www.ti.com

12 3 4 5 6 7...15

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与INA169NA250相关器件

型号	品牌	获取价格	描述	数据表
INA169NA250G4	TI	获取价格	High-Side Measurement CURRENT SHUNT MONITOR
INA169NA3K	TI	获取价格	High-Side Measurement CURRENT SHUNT MONITOR
INA169NA3KG4	TI	获取价格	High-Side Measurement CURRENT SHUNT MONITOR
INA169-Q1	TI	获取价格	HIGH SIDE MEASUREMENT CURRENT SHUNT MONITOR
INA169QPWRQ1	TI	获取价格	HIGH SIDE MEASUREMENT CURRENT SHUNT MONITOR
INA170	BB	获取价格	High-Side, Bidirectional CURRENT SHUNT MONITOR
INA170	TI	获取价格	2.7V 至 60V、双向、400kHz 可变增益电流感应放大器
INA170_12	BB	获取价格	High-Side, Bidirectional CURRENT SHUNT MONITOR
INA170EA/250	TI	获取价格	2.7V 至 60V、双向、400kHz 可变增益电流感应放大器 \| DGK \| 8 \|
INA170EA/250	BB	获取价格	High-Side, Bidirectional CURRENT SHUNT MONITOR

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