MAX9945AUA+

更新时间： 2024-09-25 11:14:07

品牌	Logo	应用领域
美信 - MAXIM		运算放大器
页数	文件大小	规格书
13页	314K
描述
38V, Low-Noise, MOS-Input, Low-Power Op Amp

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替代型号

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MAX9945AUA+ 数据手册

19-4398; Rev 0; 2/09

38V, Low-Noise, MOS-Input,

Low-Power Op Amp

MAX945

General Description

Features

The MAX9945 operational amplifier features an excellent

combination of low operating power and low input volt-

age noise. In addition, MOS inputs enable the MAX9945

to feature low input bias currents and low input current

noise. The device accepts a wide supply voltage range

from 4.75V to 38V and draws a low 400µA quiescent cur-

rent. The MAX9945 is unity-gain stable and is capable of

rail-to-rail output voltage swing.

♦ +4.75V to +38V Single-Supply Voltage Range

♦ ±±.4V to ±ꢀꢁV ꢂual-Supply Voltage Range

♦ Rail-to-Rail Output Voltage Swing

♦ 400µA Low Quiescent Current

♦ 50fA Low Input Bias Current

♦ ꢀfA/√Hz Low Input Current Noise

♦ ꢀ5nV/√Hz Low Noise

The MAX9945 is ideal for portable medical and industri-

al applications that require low noise analog front-ends

for performance applications such as photodiode trans-

impedance and chemical sensor interface circuits.

♦ 3MHz Unity-Gain Bandwidth

The MAX9945 is available in both an 8-pin µMAX^®and

a space-saving, 6-pin TDFN package, and is specified

over the automotive operating temperature range

(-40°C to +125°C).

♦ Wide Temperature Range from -40°C to +ꢀ±5°C

♦ Available in Space-Saving, 6-Pin TꢂFN Package

(3mm x 3mm)

Ordering Information

Applications

Medical Pulse Oximetry

PIN-

PACKAGE

TOP

MARK

PART

TEMP RANGE

Photodiode Sensor Interface

Industrial Sensors and Instrumentation

Chemical Sensor Interface

MAX9945ATT+ -40°C to +125°C 6 TDFN-EP*

MAX9945AUA+ -40°C to +125°C 8 µMAX

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

*EP = Exposed pad.

AUE

—

High-Performance Audio Line Out

Active Filters and Signal Processing

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

Typical Operating Circuit

PHOTODIODE

IN-

SIGNAL

CONDITIONING/

FILTERS

OUT

ADC

MAX9945

IN+

________________________________________________________________ Maxim Integrated Products

ꢀ

For pricing, delivery, and ordering information, please contact Maxim ꢂirect at ꢀ-888-6±ꢁ-464±,

or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...13

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MAX9945AUA+ 替代型号

型号	品牌	替代类型	描述	数据表
MAX9945AUA+T	MAXIM	类似代替	Operational Amplifier, 1 Func, 8000uV Offset-Max, BICMOS, PDSO8, ROHS COMPLIANT, MO-187AA,
AD820ARMZ	ADI	功能相似	Single-Supply, Rail-to-Rail, Low Power, FET Input Op Amp
AD8675ARMZ	ADI	功能相似	36 V Precision, 2.8 nV/Hz Rail-to-Rail Output Op Amp

与MAX9945AUA+相关器件

型号	品牌	获取价格	描述	数据表
MAX9945AUA+T	MAXIM	获取价格	Operational Amplifier, 1 Func, 8000uV Offset-Max, BICMOS, PDSO8, ROHS COMPLIANT, MO-187AA,
MAX9947	MAXIM	获取价格	AISG Integrated Transceiver
MAX9947	ADI	获取价格	AISG集成收发器
MAX9947_11	MAXIM	获取价格	AISG Integrated Transceiver AISG-Compliant Output Emission Profile
MAX9947_1107	MAXIM	获取价格	AISG Integrated Transceiver
MAX9947ETE	MAXIM	获取价格	AISG Integrated Transceiver AISG-Compliant Output Emission Profile
MAX9947ETE+	MAXIM	获取价格	AISG Integrated Transceiver
MAX9947ETE+T	MAXIM	获取价格	暂无描述
MAX9949	MAXIM	获取价格	Dual Per-Pin Parametric Measurement Units
MAX9949_V01	MAXIM	获取价格	Dual Per-Pin Parametric Measurement Units

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