Datasheet > MAX9923

MAX9923

更新时间： 2024-11-15 14:57:23

品牌	Logo	应用领域
亚德诺 - ADI		放大器
页数	文件大小	规格书
15页	351K
描述
超高精度、高边电流检测放大器

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MAX9923 数据手册

19-4429; Rev 1; 1/10

Ultra-Precision, High-Side

Current-Sense Amplifiers

/MAX923

General Description

Features

The MAX9922/MAX9923 ultra-precision, high-side cur-

rent-sense amplifiers feature ultra-low offset voltage

♦ Ultra-Precision V

Over Temperature

MAX9922: ±±10V ꢀmaꢁx

MAX9923T: ±2ꢂ0V ꢀmaꢁx

MAX9923H: ±210V ꢀmaꢁx

MAX9923F: ±±10V ꢀmaꢁx

(V ) of 25µV (max) and laser-trimmed gain accuracy

better than 0.5%. The combination of low V and high-

gain accuracy allows precise current measurements

even at very small sense voltages.

♦ ±1ꢃꢂ5 ꢀmaꢁx Full-Scale ꢄain Accuracꢅ

The MAX9922/MAX9923 are capable of both unidirec-

tional and bidirectional operation. For unidirectional

operation, connect REF to GND. For bidirectional oper-

♦ Bidirectional or Unidirectional I

SENSE

♦ Multiple ꢄains Available

Adjustable ꢀMAX9922x

+2ꢂV/V ꢀMAX9923Tx

ation, connect REF to V /2.

The MAX9922 has adjustable gain set with two external

resistors. The MAX9923T/MAX9923H/MAX9923F use an

internal laser-trimmed resistor for fixed gain of 25V/V,

100V/V, and 250V/V, respectively. The devices operate

from a +2.85V to +5.5V single supply, independent

of the input common-mode voltage, and draw only 700µA

operating supply current and less than 1µA in shutdown.

+±11V/V ꢀMAX9923Hx

+2ꢂ1V/V ꢀMAX9923Fx

♦ ±ꢃ9V to 28V Input Common-Mode Voltage,

Independent of V

♦ Supplꢅ Voltage: +2ꢃ8ꢂV to +ꢂꢃꢂV

The +1.9V to +28V current-sense input common-mode

voltage range makes the MAX9922/MAX9923 ideal for

current monitoring in applications where high accuracy,

large common-mode measurement range, and mini-

♦ 7110A Supplꢅ Current, ±0A Shutdown Current

♦ Eꢁtended Temperature Range ꢀ-41°C to +8ꢂ°Cx

♦ Available in Space-Saving ±1-Pin 0MAX

mum full-scale V

voltage is critical.

SENSE

The MAX9922/MAX9923 use a spread-spectrum

autozeroing technique that constantly measures and

cancels the input offset voltage, eliminating drift over

time and temperature, and the effect of 1/f noise. This,

in conjunction with the indirect current-feedback tech-

nique, achieves less than 25µV (max) offset voltage.

Ordering Information

PIN-

TEMP

RANꢄE

PART

ꢄAIN ꢀV/Vx

PACKAꢄE

MAX9922EUB+

10 µMAX

-40°C to +85°C Adjustable

The MAX9922/MAX9923 are available in a small 10-pin

µMAX^®package and are specified over the -40°C to

+85°C extended temperature range.

MAX9923TEUB+ 10 µMAX

MAX9923HEUB+ 10 µMAX

MAX9923FEUB+ 10 µMAX

-40°C to +85°C

100

250

Applications

+Denotes a lead(Pb)-free/RoHS-compliant package.

Notebook/Desktop Power Management

Handheld Li+ Battery Current Monitoring

Precision Current Sources

Pin Configuration

TOP VIEW

RSB

RS+

RS-

OUT

MAX9922

MAX9923T

MAX9923H

MAX9923F

Tꢅpical Operating Circuits appear at end of data sheetꢃ

N.C.

GND

REF

SHDN

µMAX is a registered trademark of Maxim Integrated Products, Inc.

µMAX

________________________________________________________________ Maꢁim Integrated Products

For pricing, deliverꢅ, and ordering information, please contact Maꢁim Direct at ±-888-629-4642,

or visit Maꢁim’s website at wwwꢃmaꢁim-icꢃcomꢃ

12 3 4 5 6 7...15

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与MAX9923相关器件

型号	品牌	获取价格	描述	数据表
MAX9923FAUB+	MAXIM	获取价格	Operational Amplifier, 1 Func, 10uV Offset-Max, BICMOS, PDSO10, ROHS COMPLIANT, MO-187, US
MAX9923FEUB+	MAXIM	获取价格	Ultra-Precision, High-Side Current-Sense Amplifiers
MAX9923HAUB+	MAXIM	获取价格	Operational Amplifier, 1 Func, 20uV Offset-Max, BICMOS, PDSO10, ROHS COMPLIANT, MO-187, US
MAX9923HEUB+	MAXIM	获取价格	Ultra-Precision, High-Side Current-Sense Amplifiers
MAX9923HEUB+T	MAXIM	获取价格	暂无描述
MAX9923TAUB+	MAXIM	获取价格	Operational Amplifier, 1 Func, 25uV Offset-Max, BICMOS, PDSO10, ROHS COMPLIANT, MO-187, US
MAX9923TEUB+	MAXIM	获取价格	Ultra-Precision, High-Side Current-Sense Amplifiers
MAX9923TEUB+T	MAXIM	获取价格	Operational Amplifier, 1 Func, 25uV Offset-Max, BICMOS, PDSO10, ROHS COMPLIANT, MO-187, US
MAX9924	MAXIM	获取价格	Variable Reluctance Sensor Interfaces with Differential Input and Adaptive Peak Threshold
MAX9924	ADI	获取价格	可变磁阻传感器接口，提供差分输入和自适应峰值门限

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