19-1525; Rev 1; 1/00
Lo w -Co s t , Hig h -S le w -Ra t e ,
Ra il-t o -Ra il I/O Op Am p s in S C7 0
01/MAX492
Ge n e ra l De s c rip t io n
Fe a t u re s
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.
♦ +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
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.
Up to 300pF
♦ 50pA Input Bias Current
♦ Ultra-Small, 5-Pin SC70 Package (MAX4490)
Ap p lic a t io n s
Ord e rin g In fo rm a t io n
Battery-Powered Instruments
Portable Equipment
PIN-
PACKAGE
TOP
MARK
PART
TEMP. RANGE
MAX4490AXK-T -40°C to +125°C 5 SC70-5
MAX4490AUK-T -40°C to +125°C 5 SOT23-5
MAX4491AKA-T -40°C to +125°C 8 SOT23-8
AAB
ADKQ
AADB
—
Audio Signal Conditioning
Low-Power/Low-Voltage Applications
Sensor Amplifiers
MAX4492AUD
-40°C to +125°C 14 TSSOP
-40°C to +125°C 14 SO
RF Power Amplifier Control
High-Side/Low-Side Current Sensors
MAX4492ASD
—
P in Co n fig u ra t io n s /
Fu n c t io n a l Dia g ra m s
Ca p a c it ive Lo a d S t a b ilit y
6000
5000
TOP VIEW
MAX4490
4000
3000
IN+
1
2
3
5
V
DD
V
SS
UNSTABLE
2000
IN-
4
OUT
1000
STABLE
0
SOT23-5/SC70-5
Pin Configurations continued at end of data sheet.
100
1k
10k
100k
RESISTIVE LOAD (Ω)
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.