Datasheet > INA4290A5IRGVR

INA4290A5IRGVR

更新时间： 2024-11-22 02:48:51

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
37页	2270K
描述
INAx290 2.7-V to 120-V, 1.1-MHz, Ultra-Precise, Current-Sense Amplifier

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数据手册

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INA4290A5IRGVR 数据手册

INA290, INA2290, INA4290

SBOS961C – JUNE 2020 – REVISED JUNE 2021

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. 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 (such as 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, the dual-channel INA2290 device

is available in the MSOP-8 package, and the quad-

channel INA4290 device is available in the 4 mm x 4

mm QFN package.

•

Available gains:

– A1 devices: 20 V/V

– A2 devices: 50 V/V

– A3 devices: 100 V/V

– A4 devices: 200 V/V

– A5 devices: 500 V/V

High bandwidth: 1.1 MHz

Slew rate: 2 V/µs

•

Quiescent current: 370 µA (per channel)

The INAx290 operates from a single 2.7-V to 20-V

supply with the single channel device only drawing

370-µA supply current per channel (typical). The

devices are available with five gain options: 20 V/V,

50 V/V, 100 V/V, 200 V/V, and 500 V/V. The low offset

of the zero-drift architecture enables current sensing

with low ohmic shunts as specified over the extended

operating temperature range (−40°C to +125°C).

2 Applications

•

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

Device Information⁽¹⁾

INA4290 (quad channel)

V_CM

INA2290 (dual channel)

INA290 (single channel)

PART NUMBER

INA290

PACKAGE

BODY SIZE (NOM)

2.00 mm × 1.25 mm

3.00 mm × 3.00 mm

4.00 mm × 4.00 mm

SC-70 (5)

I_SENSE

IN+

INA2290

INA4290

VSSOP (8)

QFN (16)

Current

Feedback

R_SENSE

Bias

OUT

INœ

Buffer

SAR

ADC

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

addendum at the end of the data sheet.

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. PRODUCTION DATA.

12 3 4 5 6 7...37

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与INA4290A5IRGVR相关器件

型号	品牌	获取价格	描述	数据表
INA4290A5IRGVT	TI	获取价格	INAx290 2.7-V to 120-V, 1.1-MHz, Ultra-Precise, Current-Sense Amplifier
INA500	TI	获取价格	低功耗、1MΩ RIN、20μA IQ、小尺寸衰减差分放大器
INA5001AC1	ISAHAYA	获取价格	FOR LOW FREQUENCY AMPLIFY APPLICATION SILICON NPN EPITAXIAL TYPE (mini type)
INA5001AP1	ISAHAYA	获取价格	FOR LOW FREQUENCY AMPLIFY APPLICATION SILICON PNP EPITAXIAL TYPE
INA5002AC1	ISAHAYA	获取价格	FOR LOW FREQUENCY AMPLIFY APPLICATION SILICON PNP EPITAXIAL TYPE
INA5002AP1	ISAHAYA	获取价格	For low frequency power amplify Silicon PNP Epitaxial
INA5005AC1	ISAHAYA	获取价格	FOR HIGH CURRENT DRIVE APPLICATION SILICON PNP EPITAXIAL TYPE
INA5006AC1	ISAHAYA	获取价格	FOR HIGH CURRENT DRIVE APPLICATION SILICON PNP EPITAXIAL TYPE
INA500AIDCKR	TI	获取价格	低功耗、1MΩ RIN、20µA IQ、小尺寸衰减差分放大器 \| DCK \| 6 \| -4
INA-50311	AGILENT	获取价格	1 GHz Low Noise Silicon MMIC Amplifier

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