MAX4245 Datasheet, PDF (1/11 Pages) Maxim Integrated Products – Ultra-Small, Rail-to-Rail I/O with Disable, Single-/Dual-Supply, Low-Power Op Amps

19-2016; Rev 0; 5/01
Ultra-Small, Rail-to-Rail I/O with Disable,
Single-/Dual-Supply, Low-Power Op Amps
General Description
The MAX4245/MAX4246/MAX4247 family of low-cost
op amps offer Rail-to-Rail^® inputs and outputs, draw
only 320µA of quiescent current, and operate from a
single +2.5V to +5.5V supply. For additional power con-
servation, the MAX4245/MAX4247 offer a low-power
shutdown mode that reduces supply current to 50nA,
and puts the amplifiers’ outputs in a high-impedance
state. These devices are unity-gain stable with a 1MHz
gain-bandwidth product driving capacitive loads up to
470pF.
The MAX4245/MAX4246/MAX4247 family is specified
from -40°C to +125°C, making them suitable for use in
a variety of harsh environments, such as automotive
applications. The MAX4245 single amplifier is available
in ultra-small 6-pin SC70 and space-saving 6-pin
SOT23 packages. The MAX4246 dual amplifier is avail-
able in 8-pin SOT23 and µMAX packages. The
MAX4247 dual amplifier comes in a tiny 10-pin µMAX
package.
Applications
Portable Communications
Single-Supply Zero-Crossing Detectors
Instruments and Terminals
Electronic Ignition Modules
Infrared Receivers
Sensor-Signal Detection
Features
o Rail-to-Rail Input and Output Voltage Swing
o 50nA (max) Shutdown Mode (MAX4245/MAX4247)
o 320µA (typ) Quiescent Current Per Amplifier
o Single +2.5V to +5.5V Supply Voltage Range
o 110dB Open-Loop Gain with 2kΩ Load
o 0.01% THD with 100kΩ Load
o Unity-Gain Stable up to C_LOAD = 470pF
o No Phase Inversion for Overdriven Inputs
o Available in Space-Saving Packages
6-Pin SC70 or 6-Pin SOT23 (MAX4245)
8-Pin SOT23 or 8-Pin µMAX (MAX4246)
10-Pin µMAX (MAX4247)
Ordering Information
PART
TEMP. RANGE ^PIN-
PACKAGE
MAX4245AXT-T -40°C to +125°C 6 SC70-6
MAX4245AUT-T -40°C to +125°C 6 SOT23-6
MAX4246AKA-T -40°C to +125°C 8 SOT23-8
MAX4246AUA -40°C to +125°C 8 µMAX
MAX4247AUB -40°C to +125°C 10 µMAX
TOP
MARK
AAZ
AAUB
AAIN
—
—
Pin Configurations
PART
MAX4245AXT-T
MAX4245AUT-T
MAX4246AKA-T
MAX4246AUA
MAX4247AUB
Selector Guide
AMPLIFIERS
PER PACKAGE
1
1
2
2
2
SHUTDOWN
MODE
Yes
Yes
No
No
Yes
TOP VIEW
IN+ 1
VSS 2
MAX4245
6 VDD
5 SHDN
OUTA 1
INA- 2
IN- 3
4 OUT
INA+ 3
SC70-6/SOT23-6
VSS 4
MAX4246
8 VDD
7 OUTB
6 INB-
5 INB+
SOT23-8/µMAX-8
Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.
Pin Configurations continued at end of data sheet.
________________________________________________________________ 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.