19-1525; Rev 2; 4/01
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 | — |
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.
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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