Datasheet > I270A

I270A

更新时间： 2024-11-09 03:43:23

品牌	Logo	应用领域
BB		/
页数	文件大小	规格书
17页	472K
描述
Voltage Output, Unidirectional Measurement Current-Shunt Monitor

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I270A 数据手册

INA270

INA271

SBOS381A–FEBRUARY 2007–REVISED APRIL 2007

Voltage Output, Unidirectional Measurement

Current-Shunt Monitor

FEATURES

DESCRIPTION

•

WIDE COMMON-MODE RANGE: –16V to +80V

The INA270 and INA271 family of current-shunt

monitors with voltage output can sense drops across

current shunts at common-mode voltages from –16V

to +80V, independent of the supply voltage. The

INA270 and INA271 pinouts readily enable filtering.

CMRR: 120dB

ACCURACY:

±2.5mV offset (max)

±1% gain error (max)

20µV/°C offset drift (max)

55ppm/°C gain drift (max)

The INA270 and INA271 are available with two

output voltage scales: 14V/V and 20V/V. The 130kHz

bandwidth simplifies use in current-control loops.

•

BANDWIDTH: Up to 130kHz

The INA270 and INA271 operate from a single +2.7V

to +18V supply, drawing a maximum of 900µA of

supply current. They are specified over the extended

operating temperature range of –40°C to +125°C and

are offered in an SO-8 package.

TWO TRANSFER FUNCTIONS AVAILABLE:

14V/V (INA270)

20V/V (INA271)

•

QUIESCENT CURRENT: 900µA (max)

POWER SUPPLY: +2.7V to +18V

PROVISION FOR FILTERING

R_S

-16V to +80V

Supply

Load

Single-Pole Filter

Capacitor

APPLICATIONS

+2.7V to +18V

•

POWER MANAGEMENT

AUTOMOTIVE

TELECOM EQUIPMENT

NOTEBOOK COMPUTERS

BATTERY CHARGERS

CELL PHONES

PRE OUT

BUF IN

IN+

IN-

V+

5kW

OUT

WELDING EQUIPMENT

96kW

R_L

INA270

GND

DEVICE COMPARISON

DEVICE

INA270

INA271

GAIN

14V/V

20V/V

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 the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...17

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