MAX9914 데이터 시트보기 (PDF) - Maxim Integrated

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MAX9914

1MHz, 20µA, Rail-to-Rail I/O Op Amps with Shutdown

Maxim Integrated 

19-3407; Rev 1; 10/05

1MHz, 20µA, Rail-to-Rail

I/O Op Amps with Shutdown

General Description

The single MAX9914/MAX9915 and dual MAX9916/

MAX9917 operational amplifiers feature maximized ratio

of gain bandwidth to supply current and are ideal for

battery-powered applications such as portable instru-

mentation, portable medical equipment, and wireless

handsets. These CMOS op amps feature an ultra-low

1pA input bias current, rail-to-rail inputs and outputs,

low 20µA supply current, and operate from a single

1.8V to 5.5V supply. For additional power conservation,

the MAX9915/MAX9917 feature a low-power shutdown

mode that reduces supply current to 1nA, and puts the

amplifier outputs in a high-impedance state. These

devices are unity-gain stable with a 1MHz gain-band-

width product.

The MAX9914 and MAX9915 are available in 5-pin and

6-pin SC70 packages, respectively. The MAX9916 is

available in an 8-pin SOT23 package, and the

MAX9917 in a 10-pin µMAX® package. All devices are

specified over the -40°C to +85°C extended operating

temperature range.

Applications

Portable Medical Devices

Portable Test Equipment

RF Tags

Laptops

Data-Acquisition Equipment

Typical Operating Circuit

3V

VDD

MAX9916

INA+

IN+

OUTA

RG*

INB+

IN-

INA-

OUTB

INB-

VSS

OUT

R1

47kΩ

R2

10kΩ

GAIN

=

(R1

+ R2

(R2

+

+

R3 +

R3)

R4)

FOR R1 = R4 AND R2 = R3

GAIN = 1 + R4

R2

R3

10kΩ

R4

47kΩ

MICROPOWER, TWO-OP-AMP INSTRUMENTATION AMPLIFIER

*OPTIONAL INPUT RESISTOR RG, IS FOR GAIN ADJUSTMENT

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

Features

♦ High 1MHz GBW

♦ Ultra-Low 20µA Supply Current

♦ Single 1.8V to 5.5V Supply Voltage Range

♦ Ultra-Low 1pA Input Bias Current

♦ Rail-to-Rail Input and Output Voltage Ranges

♦ Low ±200µV Input Offset Voltage

♦ Low 0.001µA Shutdown Current

♦ High-Impedance Output During Shutdown

(MAX9915/MAX9917)

♦ Unity-Gain Stable

♦ Available in Tiny SC70, SOT23, and µMAX

Packages

Ordering Information

PART

TEMP RANGE

MAX9914EXK+T -40°C to +85°C

MAX9914EXK-T

MAX9915EXT+T

MAX9915EXT-T

MAX9916EKA+T

MAX9916EKA-T

MAX9917EUB

MAX9917EUB+

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

-40°C to +85°C

+Denotes lead-free package.

PIN-

PACKAGE

5 SC70-5

5 SC70-5

6 SC70-6

6 SC70-6

8 SOT23-8

8 SOT23-8

10 µMAX

10 µMAX

TOP

MARK

AGB

AGB

ACB

ACB

AEJZ

AEJZ

—

—

Selector Guide

PART

AMPLIFIERS

PER

PACKAGE

SHUTDOWN

MODE

PACKAGE

MAX9914EXK-T

1

MAX9915EXT-T

1

MAX9916EKA-T

2

MAX9917EUB

2

No

5 SC70-5

Yes

6 SC70-6

No

8 SOT23-8

Yes

10 µMAX

________________________________________________________________ Maxim Integrated Products 1

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

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