19-1525; Rev 1; 1/00
Low-Cost, High-Slew-Rate,
Rail-to-Rail I/O Op Amps in SC70
General Description
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
supply or dual ±1.35V to ±2.75V supplies. These ampli-
fiers exhibit a high slew rate of 10V/µs and a gain-band-
width product of 10MHz. They can drive 2kΩ 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.
o
10V/µs Slew Rate
o
Rail-to-Rail Input Common-Mode Voltage Range
o
Rail-to-Rail Output Voltage Swing
o
10MHz Gain-Bandwidth Product
o
Unity-Gain Stable with Capacitive Loads
Up to 300pF
o
50pA Input Bias Current
o
Ultra-Small, 5-Pin SC70 Package (MAX4490)
Features
o
+2.7V to +5.5V Single-Supply Operation
MAX4490/MAX4491/MAX4492
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
PART
Ordering Information
TEMP. RANGE
PIN-
PACKAGE
5 SC70-5
5 SOT23-5
8 SOT23-8
14 TSSOP
14 SO
TOP
MARK
AAB
ADKQ
AADB
—
—
MAX4490AXK-T
-40°C to +125°C
MAX4490AUK-T
MAX4491AKA-T
MAX4492AUD
MAX4492ASD
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
Capacitive Load Stability
6000
5000
CAPACITIVE LOAD (pF)
4000
3000
Pin Configurations/
Functional Diagrams
TOP VIEW
MAX4490
IN+
1
5
V
DD
+ -
UNSTABLE
2000
1000
STABLE
0
100
1k
10k
100k
RESISTIVE LOAD (Ω)
V
SS
2
IN-
3
4
OUT
SOT23-5/SC70-5
Pin Configurations continued at end of data sheet.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
________________________________________________________________
Maxim Integrated Products
1
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
