19-2272; Rev 0; 1/02
Single/Dual/Quad, Micropower, Single-Supply,
Rail-to-Rail Op Amps
General Description
The single MAX4091, dual MAX4092, and quad
MAX4094 operational amplifiers combine excellent DC
accuracy with Rail-to-Rail
®
operation at the input and
output. Since the common-mode voltage extends from
V
CC
to V
EE
, the devices can operate from either a sin-
gle supply (2.7V to 6V) or split supplies (±1.35V to
±3V). Each op amp requires less than 130µA of supply
current. Even with this low current, the op amps are
capable of driving a 1kΩ load, and the input-referred
voltage noise is only 12nV/√Hz. In addition, these op
amps can drive loads in excess of 2000pF.
The precision performance of the MAX4091/MAX4092/
MAX4094 combined with their wide input and output
dynamic range, low-voltage, single-supply operation,
and very low supply current, make them an ideal
choice for battery-operated equipment, industrial, and
data acquisition and control applications. In addition,
the MAX4091 is available in space-saving 5-pin SOT23,
8-pin µMAX, and 8-pin SO packages. The MAX4092 is
available in 8-pin µMAX and SO packages, and the
MAX4094 is available in 14-pin TSSOP and 14-pin SO
packages.
o
Beyond-the-Rails™ Inputs
o
No Phase Reversal for Overdriven Inputs
o
30µV Offset Voltage
o
Rail-to-Rail Output Swing with 1kΩ Load
o
Unity-Gain Stable with 2000pF Load
o
165µA (max) Quiescent Current Per Op Amp
o
500kHz Gain-Bandwidth Product
o
High Voltage Gain (115dB)
o
High Common-Mode Rejection Ratio (90dB) and
Power-Supply Rejection Ratio (100dB)
o
Temperature Range (-40°C to +125°C)
Features
o
Low-Voltage, Single-Supply Operation (2.7V to 6V)
MAX4091/MAX4092/MAX4094
Ordering Information
PART
MAX4091AUK-T
MAX4091ASA
MAX4091AUA
MAX4092ASA
MAX4092AUA
MAX4094AUD
MAX4094ASD
TEMP RANGE
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
-40°C to +125°C
PIN-PACKAGE
5 SOT23-5
8 SO
8 µMAX
8 SO
8 µMAX
14 TSSOP
14 SO
________________________Applications
Portable Equipment
Battery-Powered Instruments
Data Acquisition and Control
Low-Voltage Signal Conditioning
Pin Configurations/Functional Diagrams
TOP VIEW
OUT1 1
N.C. 1
IN- 2
IN+ 3
V
EE
4
µMAX/SO
MAX4091
8
7
6
5
N.C.
V
CC
OUT
N.C.
OUT 1
V
EE
2
IN+ 3
SOT23
4
IN-
5
V
CC
OUT1 1
IN1- 2
IN1+ 3
V
EE
4
µMAX/SO
IN1- 2
MAX4092
8
7
6
5
V
CC
OUT2
IN2-
IN2+
IN2- 6
OUT2 7
9
8
IN3-
OUT3
IN1+ 3
V
CC
4
IN2+ 5
MAX4094
14 OUT4
13 IN4-
12 IN4+
11 V
EE
10 IN3+
MAX4091
TSSOP/SO
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Beyond-the-Rails is a trademark of Maxim Integrated Products, Inc.
________________________________________________________________
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.
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
