Datasheet > MAX9945

MAX9945

更新时间： 2024-09-25 14:58:27

品牌	Logo	应用领域
亚德诺 - ADI		放大器运算放大器
页数	文件大小	规格书
14页	953K
描述
38V、低噪声、MOS输入、低功耗运算放大器

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

MAX9945 数据手册

19-4398; Rev 1; 12/10

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.

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

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

o Rail-to-Rail Output Voltage Swing

o 400µA Low Quiescent Current

o 50fA Low Input Bias Current

o ꢀfA/√Hz Low Input Current Noise

o ꢀ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.

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).

o 3MHz Unity-Gain Bandwidth

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

o 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...14

中文翻译

下载PDF

与MAX9945相关器件

型号	品牌	获取价格	描述	数据表
MAX9945_10	MAXIM	获取价格	38V, Low-Noise, MOS-Input, Low-Power Op Amp
MAX9945ATT	MAXIM	获取价格	38V, Low-Noise, MOS-Input, Low-Power Op Amp
MAX9945ATT+	MAXIM	获取价格	38V, Low-Noise, MOS-Input, Low-Power Op Amp
MAX9945ATT+T	MAXIM	获取价格	Operational Amplifier, 1 Func, 8000uV Offset-Max, BICMOS, PDSO6, 3 X 3 MM, 0.80 MM HEIGHT,
MAX9945AUA	MAXIM	获取价格	38V, Low-Noise, MOS-Input, Low-Power Op Amp
MAX9945AUA+	MAXIM	获取价格	38V, Low-Noise, MOS-Input, Low-Power Op Amp
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