Datasheet > INA290-Q1

INA290-Q1

更新时间： 2024-11-22 02:48:23

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
27页	1274K
描述
INAx290 2.7-V to 120-V, 1.1-MHz, Ultra-Precise Current Sense Amplifier

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INA290-Q1 数据手册

INA290, INA2290

www.ti.com

SBOS961A – JUNE 2020 – REVISED SEPTEMBER 2020

INAx290 2.7-V to 120-V, 1.1-MHz, Ultra-Precise Current Sense Amplifier

1 Features

3 Description

•

Wide common-mode voltage:

– Operational voltage: 2.7 V to 120 V

– Survival voltage: −20 V to +122 V

Excellent CMRR:

– 160-dB DC

– 85-dB AC at 50 kHz

Accuracy

The INAx290 is an ultra-precise current sense

amplifier that can measure voltage drops across shunt

resistors over a wide common-mode range from 2.7 V

to 120 V. It is in a highly space-efficient SC-70

package with a PCB footprint of only 2.0 mm × 2.1

mm. The ultra-precise current measurement accuracy

is achieved thanks to the combination of an ultra-low

offset voltage of ±12 µV (maximum), a small gain

error of ±0.1% (maximum), and a high DC CMRR of

160 dB (typical). The INAx290 is not only designed for

DC current measurement, but also for high-speed

applications (like fast overcurrent protection, for

example) with a high bandwidth of 1.1 MHz (at gain of

20 V/V) and an 85-dB AC CMRR (at 50 kHz).

– Gain:

•

Gain error: ±0.1% (maximum)

Gain drift: ±5 ppm/°C (maximum)

– Offset:

•

Offset voltage: ±12 µV (maximum)

Offset drift: ±0.2 µV/°C (maximum)

The INAx290 provides the capability to make ultra-

precise current measurements by sensing the voltage

drop across a shunt resistor over a wide common-

mode range from 2.7 V to 120 V. The INAx290

devices come in highly space-efficient packages. The

single channel INA290 device is featured in the SC-70

package while the dual channel INA2290 device is

available in the VSSOP-8 package.

•

Available gains:

– INAx290A1: 20 V/V

– INAx290A2: 50 V/V

– INAx290A3: 100 V/V

– INAx290A4: 200 V/V

– INAx290A5: 500 V/V

High bandwidth: 1.1 MHz

Slew rate: 2 V/µs

•

Device Information

Quiescent current: 370 µA(per channel)

PART NUMBER

INA290

INA2290⁽²⁾

PACKAGE⁽¹⁾

BODY SIZE (NOM)

2.00 mm × 1.25 mm

3.00 mm × 3.00 mm

2 Applications

SC-70 (5)

VSSOP (8)

•

Active antenna system mMIMO (AAS)

Macro remote radio unit (RRU)

48-V rack server

48-V merchant network & server power supply

Test and measurement

V_S

(1) For all available packages, see the package option

addendum at the end of the data sheet.

(2) Advanced information

V_CM

INA2290 (dual channel)

INA290 (single channel)

I_SENSE

IN+

Current

Feedback

R_SENSE

Bias

OUT

INœ

Buffer

SAR

ADC

Load

GND

Typical Application

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION

Submit Document Feedback

DATA.

Product Folder Links: INA290 INA2290

12 3 4 5 6 7...27

中文翻译

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与INA290-Q1相关器件

型号	品牌	获取价格	描述	数据表
INA290-Q1_V01	TI	获取价格	INA290-Q1 AEC-Q100, 2.7-V to 120-V, 1.1-MHz, Ultra-Precise Current Sense Amplifier
INA293	TI	获取价格	-4V 至 110V、1.3MHz 超精密电流感应放大器
INA293A1IDBVR	TI	获取价格	-4V 至 110V、1.3MHz 超精密电流感应放大器 \| DBV \| 5 \| -40
INA293A1IDBVT	TI	获取价格	-4V 至 110V、1.3MHz 超精密电流感应放大器 \| DBV \| 5 \| -40
INA293A1QDBVRQ1	TI	获取价格	INA293-Q1, AEC-Q100, â4-V to 110-V, 1-MHz,
INA293A2IDBVR	TI	获取价格	-4V 至 110V、1.3MHz 超精密电流感应放大器 \| DBV \| 5 \| -40
INA293A2IDBVT	TI	获取价格	-4V 至 110V、1.3MHz 超精密电流感应放大器 \| DBV \| 5 \| -40
INA293A2QDBVRQ1	TI	获取价格	INA293-Q1, AEC-Q100, â4-V to 110-V, 1-MHz,
INA293A3IDBVR	TI	获取价格	-4V 至 110V、1.3MHz 超精密电流感应放大器 \| DBV \| 5 \| -40
INA293A3IDBVT	TI	获取价格	-4V 至 110V、1.3MHz 超精密电流感应放大器 \| DBV \| 5 \| -40

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