MAX9914 Datasheet, PDF (1/15 Pages) Maxim Integrated Products – 1MHz, 20μA, Rail-to-Rail I/O Op Amps with Shutdown

19-3407; Rev 1; 10/05
1MHz, 20µA, Rail-to-Rail
I/O Op Amps with Shutdown
General Description
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.
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
MAX9917 in a 10-pin µMAX® package. All devices are
specified over the -40°C to +85°C extended operating
temperature range.
Applications
Portable Medical Devices
Portable Test Equipment
RF Tags
Laptops
Data-Acquisition Equipment
Typical Operating Circuit
3V
VDD
MAX9916
INA+
IN+
OUTA
RG*
INB+
IN-
INA-
OUTB
INB-
VSS
OUT
R1
47kΩ
R2
10kΩ
GAIN
=
(R1
+ R2
(R2
+
+
R3 +
R3)
R4)
FOR R1 = R4 AND R2 = R3
GAIN = 1 + ^R4
R2
R3
10kΩ
R4
47kΩ
MICROPOWER, TWO-OP-AMP INSTRUMENTATION AMPLIFIER
*OPTIONAL INPUT RESISTOR RG, IS FOR GAIN ADJUSTMENT
µMAX is a registered trademark of Maxim Integrated Products, Inc.
Features
♦ 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 Offset Voltage
♦ Low 0.001µA Shutdown Current
♦ High-Impedance Output During Shutdown
(MAX9915/MAX9917)
♦ Unity-Gain Stable
♦ Available in Tiny SC70, SOT23, and µMAX
Packages
Ordering Information
PART
TEMP RANGE
MAX9914EXK+T -40°C to +85°C
MAX9914EXK-T
MAX9915EXT+T
MAX9915EXT-T
MAX9916EKA+T
MAX9916EKA-T
MAX9917EUB
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
+Denotes lead-free package.
PIN-
PACKAGE
5 SC70-5
5 SC70-5
6 SC70-6
6 SC70-6
8 SOT23-8
8 SOT23-8
10 µMAX
10 µMAX
TOP
MARK
AGB
AGB
ACB
ACB
AEJZ
AEJZ
—
—
Selector Guide
PART
AMPLIFIERS
PER
PACKAGE
SHUTDOWN
MODE
PACKAGE
MAX9914EXK-T
1
MAX9915EXT-T
1
MAX9916EKA-T
2
MAX9917EUB
2
No
5 SC70-5
Yes
6 SC70-6
No
8 SOT23-8
Yes
10 µMAX
________________________________________________________________ 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.