19-1525; Rev 2; 4/01


Low -Cost, High-Slew -Rate, Rail-to-Rail I /O Op Amps in SC70


MAX4490 /MAX4491 /MAX4492

General Description Features

The MAX4490/MAX4491/MAX4492 single/dual/quad, low-cost CMOS op amps feature Rail-to-Rail® input and output capability from either a single 2.7V to 5.5V sup- ply or dual ± 1.35V to ± 2.75V supplies. These amplifiers exhibit a high slew rate of 10V/µs and a gain-bandwidth product of 10MHz. They can drive 2k resistive loads to within 55mV of either supply rail and remain unity- gain stable with capacitive loads up to 300pF.

The MAX4490 is offered in the ultra-small, 5-pin SC70 package, which is 50% smaller than the standard 5-pin SOT23 package. Specifications for all parts are guaran- teed over the automotive (-40°C to +125°C) tempera- ture range.

2.7V to 5.5V Single-Supply Operation 10V/µs Slew Rate

Rail-to-Rail Input Common-Mode Voltage Range Rail-to-Rail Output Voltage Swing

10MHz Gain-Bandwidth Product

Unity-Gain Stable with Capacitive Loads Up to 300pF

50pA Input Bias Current

Ultra-Small, 5-Pin SC70 Package (MAX4490)



Applications

Battery-Powered Instruments Portable Equipment

Audio Signal Conditioning

Low-Power/Low-Voltage Applications Sensor Amplifiers

RF Power Amplifier Control

High-Side/Low-Side Current Sensors

Ordering Information


PART

TEMP RANGE

PIN- PACKAGE

TOP MARK

MAX4490AXK-T

-40°C to +125°C

5 SC70-5

AAB

MAX4490AUK-T

-40°C to +125°C

5 SOT23-5

ADKQ

MAX4491AKA-T

-40°C to +125°C

8 SOT23-5

AADB

MAX4491AUA

-40°C to +125°C

8 µMAX

MAX4492AUD

-40°C to +125°C

14 TSSOP

MAX4492ASD

-40°C to +125°C

14 SO


Pin Configurations/


TOPVIEW


IN+ 1 MAX4490 5 VDD


VSS 2


IN- 3 4 OUT


SOT23-5/SC70-5


Pin Configurations continued at end of data sheet.

6000


5000


4000


3000

CAPACITIVELOAD(pF)

Capacitive-Load Stability Functional Diagrams


RESISTIVELOAD()

100k

10k

1k

100

0

STABLE

2000


1000

UNSTABLE

Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.


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.

Mouser Electronics


Authorized Distributor


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Maxim Integrated:

MAX4490AXK+T MAX4492ASD+ MAX4490AUK+T MAX4490AUK-T MAX4490AXK-T MAX4491AKA+T MAX4491AUA+ MAX4491AUA+T MAX4492ASD+T MAX4492AUD MAX4492AUD+ MAX4492AUD+T MAX4491AKA-T MAX4491AUA MAX4491AUA-T MAX4492AUD-T