MAX4245_11 Datasheet, PDF (1/17 Pages) Maxim Integrated Products – Ultra-Small, Rail-to-Rail I/O with Disable, Single-/Dual-Supply, Low-Power Op Amps

19-2016; Rev 2; 11/11
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 conserva-
tion, 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-band-
width 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 appli-
cations. The MAX4245 single amplifier is available in
ultra-small 6-pin SC70 and space-saving 6-pin SOT23
packages. The MAX4246 dual amplifier is available in
8-pin SOT23, SO, and µMAX^® packages. The MAX4247
dual amplifier comes in a tiny 10-pin µMAX package.
Features
♦ Rail-to-Rail Input and Output Voltage Swing
♦ 50nA (max) Shutdown Mode (MAX4245/MAX4247)
♦ 320µA (typ) Quiescent Current Per Amplifier
♦ Single +2.5V to +5.5V Supply Voltage Range
♦ 110dB Open-Loop Gain with 2kΩ Load
♦ 0.01% THD with 100kΩ Load
♦ Unity-Gain Stable up to C_LOAD = 470pF
♦ No Phase Inversion for Overdriven Inputs
♦ Available in Space-Saving Packages
6-Pin SC70 or 6-Pin SOT23 (MAX4245)
8-Pin SOT23/SO or 8-Pin µMAX (MAX4246)
10-Pin µMAX (MAX4247)
Applications
Portable Communications
Single-Supply Zero-Crossing Detectors
Instruments and Terminals
Electronic Ignition Modules
Infrared Receivers
Sensor-Signal Detection
PART
MAX4245AXT
MAX4245AUT
MAX4246AKA
MAX4246ASA
MAX4246AUA
MAX4247AUB
Selector Guide
AMPLIFIERS
PER PACKAGE
1
1
2
2
2
2
SHUTDOWN
MODE
Yes
Yes
No
No
No
Yes
Ordering Information
PART
TEMP RANGE
PIN-
TOP
PACKAGE MARK
MAX4245AXT+T -40°C to +125°C 6 SC70
AAZ
MAX4245AUT+T -40°C to +125°C 6 SOT23 AAUB
MAX4246AKA+T -40°C to +125°C 8 SOT23 AAIN
MAX4246ASA+T -40°C to +125°C 8 SO
—
MAX4246AUA+T -40°C to +125°C 8 µMAX
—
MAX4247AUB+T -40°C to +125°C 10 µMAX
—
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Pin Configurations
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/SO
µMAX is a registered trademark of Maxim Integrated Products, Inc. Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.