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
廬
inputs and outputs, draw
only 320碌A 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鈥?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擄C to +125擄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 碌MAX packages. The
MAX4247 dual amplifier comes in a tiny 10-pin 碌MAX
package.
Features
o
Rail-to-Rail Input and Output Voltage Swing
o
50nA (max) Shutdown Mode (MAX4245/MAX4247)
o
320碌A (typ) Quiescent Current Per Amplifier
o
Single +2.5V to +5.5V Supply Voltage Range
o
110dB Open-Loop Gain with 2k鈩?Load
o
0.01% THD with 100k鈩?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 碌MAX (MAX4246)
10-Pin 碌MAX (MAX4247)
MAX4245/MAX4246/MAX4247
Applications
Portable Communications
Single-Supply Zero-Crossing Detectors
Instruments and Terminals
Electronic Ignition Modules
Infrared Receivers
Sensor-Signal Detection
PART
Ordering Information
TEMP. RANGE
PIN-
PACKAGE
6 SC70-6
6 SOT23-6
8 SOT23-8
8 碌MAX
10 碌MAX
TOP
MARK
AAZ
AAUB
AAIN
鈥?/div>
鈥?/div>
MAX4245AXT-T
-40擄C to +125擄C
MAX4245AUT-T -40擄C to +125擄C
MAX4246AKA-T
-40擄C to +125擄C
MAX4246AUA
MAX4247AUB
-40擄C to +125擄C
-40擄C to +125擄C
Pin Configurations
Selector Guide
PART
MAX4245AXT-T
MAX4245AUT-T
MAX4246AKA-T
MAX4246AUA
MAX4247AUB
AMPLIFIERS
PER PACKAGE
1
1
2
2
2
SHUTDOWN
MODE
Yes
Yes
No
No
Yes
V
SS
2
5
SHDN
TOP VIEW
IN+ 1
6
V
DD
OUTA
1
8 V
DD
MAX4245
MAX4246
INA-
2
7 OUTB
IN- 3
4
OUT
INA+
3
6 INB-
SC70-6/SOT23-6
V
SS
4
5 INB+
SOT23-8/碌MAX-8
Pin Configurations continued at end of data sheet.
Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.
________________________________________________________________
Maxim Integrated Products
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For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim鈥檚 website at www.maxim-ic.com.
Maxim
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