19-3407; Rev 1; 10/05
1MHz, 20µA, Rail-to-Rail
I/O Op Amps with Shutdown
General Description
Features
The single MAX9914/MAX9915 and dual MAX9916/
MAX9917 operational amplifiers feature maximized ratio
of gain bandwidth to supply current and are ideal for
battery-powered applications such as portable instru-
mentation, portable medical equipment, and wireless
handsets. These CMOS op amps feature an ultra-low
1pA input bias current, rail-to-rail inputs and outputs,
low 20µA supply current, and operate from a single
1.8V to 5.5V supply. For additional power conservation,
the MAX9915/MAX9917 feature a low-power shutdown
mode that reduces supply current to 1nA, and puts the
amplifier outputs in a high-impedance state. These
devices are unity-gain stable with a 1MHz gain-band-
width product.
♦ High 1MHz GBW
♦ Ultra-Low 20µA Supply Current
♦ Single 1.8V to 5.5V Supply Voltage Range
♦ Ultra-Low 1pA Input Bias Current
♦ Rail-to-Rail Input and Output Voltage Ranges
♦ Low 200µV Input Oꢀꢀset Voltage
♦ Low 0.001µA Shutdown Current
♦ High-Impedance Output During Shutdown
(MAX9915/MAX9917)
♦ Unity-Gain Stable
♦ Available in Tiny SC70, SOT23, and µMAX
The MAX9914 and MAX9915 are available in 5-pin and
6-pin SC70 packages, respectively. The MAX9916 is
available in an 8-pin SOT23 package, and the
Packages
®
MAX9917 in a 10-pin µMAX package. All devices are
specified over the -40°C to +85°C extended operating
temperature range.
Applications
Ordering Information
Portable Medical Devices
Portable Test Equipment
RF Tags
PIN-
PACKAGE
TOP
MARK
PART
TEMP RANGE
MAX9914EXK+T
MAX9914EXK-T
MAX9915EXT+T
MAX9915EXT-T
MAX9916EKA+T
MAX9916EKA-T
MAX9917EUB
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
5 SC70-5
5 SC70-5
6 SC70-6
6 SC70-6
8 SOT23-8
8 SOT23-8
10 µMAX
10 µMAX
AGB
AGB
ACB
ACB
AEJZ
AEJZ
—
Laptops
Data-Acquisition Equipment
Typical Operating Circuit
3V
V
DD
MAX9917EUB+
—
MAX9916
+Denotes lead-free package.
INA+
IN+
OUTA
INA-
OUT
R1
47kΩ
+
+
+
(R1 R2 R3 R4)
=
GAIN
Selector Guide
+
(R2 R3)
R *
G
R2
10kΩ
=
=
FOR R1 R4 AND R2 R3
INB+
IN-
R4
AMPLIFIERS
PER
PACKAGE
+
1
=
GAIN
SHUTDOWN
PACKAGE
MODE
OUTB
INB-
R2
PART
R3
10kΩ
MAX9914EXK-T
MAX9915EXT-T
MAX9916EKA-T
MAX9917EUB
1
1
2
2
No
Yes
No
5 SC70-5
6 SC70-6
8 SOT23-8
10 µMAX
V
SS
R4
47kΩ
MICROPOWER, TWO-OP-AMP INSTRUMENTATION AMPLIFIER
*OPTIONAL INPUT RESISTOR R , IS FOR GAIN ADJUSTMENT
G
Yes
µMAX is a registered 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.