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-bandwidth product.
The MAX9914 and MAX9915 are available in 5-pin and
6-pin SC70 packages, respectively. The MAX9916 is avail-
able 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.
●
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
MAX9914EXK+T
MAX9914EXK-T
MAX9915EXT+T
MAX9915EXT-T
MAX9916EKA+T
MAX9916EKA-T
MAX9917EUB
MAX9917EUB+
TEMP RANGE
-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
PIN-
PACKAGE
5 SC70
5 SC70
6 SC70
6 SC70
8 SOT23
8 SOT23
10 µMAX
10 µMAX
TOP
MARK
AGB
AGB
ACB
ACB
AEJZ
AEJZ
—
—
Applications
●
●
●
●
●
Portable Medical Devices
Portable Test Equipment
RF Tags
Laptops
Data-Acquisition Equipment
Typical Operating Circuit
3V
V
DD
MAX9916
IN+
INA+
OUTA
OUT
R1
47kΩ
INA-
R
G
*
IN-
INB+
OUTB
R3
10kΩ
R2
10kΩ
GAIN =
(R1 + R2 + R3 + R4)
(R2 + R3)
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Selector Guide
PART
MAX9914EXK+T
MAX9915EXT+T
MAX9916EKA+T
MAX9917EUB+
AMPLIFIERS
PER
PACKAGE
1
1
2
2
SHUTDOWN
PACKAGE
MODE
No
Yes
No
Yes
5 SC70
6 SC70
8 SOT23
10 µMAX
FOR R1 = R4 AND R2 = R3
R4
GAIN = 1 +
R2
INB-
V
SS
R4
47kΩ
MICROPOWER, TWO-OP-AMP INSTRUMENTATION AMPLIFIER
*OPTIONAL INPUT RESISTOR R
G
, IS FOR GAIN ADJUSTMENT
μMAX is a registered trademark of Maxim Integrated Products, Inc.
19-3407; Rev 3; 11/14
MAX9914–MAX9917
1MHz, 20μA, Rail-to-Rail
I/O Op Amps with Shutdown
Absolute Maximum Ratings
Power-Supply Voltage (V
DD
to V
SS
) ....................-0.3V
to +6.0V
IN_+, IN_-, OUT_,
SHDN_
............
(V
SS
- 0.3V) to (V
DD
+ 0.3V)
Current into IN_+, IN_- .....................................................±20mA
Output Short-Circuit Duration to V
DD
or V
SS
............Continuous
Continuous Power Dissipation (T
A
= +70°C)
5-Pin SC70 (derate 3.1mW/°C above +70°C)
.............247mW
6-Pin SC70 (derate 3.1mW/°C above +70°C)
.............245mW
8-Pin SOT23 (derate 5.1mW/°C above +70°C)
..........408mW
10-Pin μMAX (derate 5.6mW/°C above +70°C)
..........444mW
Operating Temperature Range ...........................
-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range ............................ -65°C to +150°C
Lead Temperature (soldering, 10s) .................................
+300°C
Soldering Temperature (reflow) .......................................+260°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these
or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
Electrical Characteristics
(V
DD
= 1.8V to 5.5V, V
SS
= 0V, V
CM
= 0V, V
OUT
= V
DD
/2, R
L
= ∞ connected to V
DD
/2,
SHDN_
= V
DD
,
T
A
= +25°C,
unless
otherwise noted.) (Note 1)
PARAMETER
Supply Voltage Range
SYMBOL
V
DD
CONDITIONS
Guaranteed by PSRR test
MAX9914/MAX9915
Supply Current
I
DD
MAX9916/MAX9917
Shutdown Supply Current
Input Offset Voltage
Input-Offset-Voltage Matching
Input Bias Current
Input Offset Current
Input Resistance
Input Common-Mode Range
Common-Mode Rejection Ratio
Power-Supply Rejection Ratio
I
B
I
OS
R
IN
V
CM
CMRR
PSRR
I
DD(SHDN_)
V
OS
MAX9916/MAX9917
(Note 2)
(Note 2)
Common mode
Differential mode, -1mV < V
IN
< +1mV
Guaranteed by CMRR test
-0.1V < V
CM
< V
DD
+ 0.1V, V
DD
= 5.5V
1.8V < V
DD
< 5.5V
25mV < V
OUT
< V
DD
- 25mV,
R
L
= 100kΩ, V
DD
= 5.5V
100mV < V
OUT
< V
DD
- 100mV,
RL = 5kΩ, V
DD
= 5.5V
R
L
= 100kΩ
Output-Voltage-Swing High
V
OH
V
DD
- V
OUT
R
L
= 5kΩ
R
L
= 1kΩ
R
L
= 100kΩ
Output-Voltage-Swing Low
Channel-to-Channel Isolation
Output Short-Circuit Current
V
OL
CH
ISO
I
OUT(SC)
V
OUT
- V
SS
R
L
= 5kΩ
R
L
= 1kΩ
Specified at DC, MAX9916/MAX9917
V
SS
- 0.1
70
65
95
95
80
85
120
dB
110
2.5
50
250
2.5
50
250
100
±15
dB
mA
5
70
mV
5
70
mV
V
DD
= 1.8V
V
DD
= 5.5V
V
DD
= 1.8V
V
DD
= 5.5V
MIN
1.8
20
20
40
40
0.001
±0.2
±250
±1
±1
1
10
V
DD
+ 0.1
±10
±10
50
0.5
±1
µA
mV
µV
pA
pA
GΩ
V
dB
dB
25
µA
TYP
MAX
5.5
UNITS
V
SHDN_
= GND, MAX9915/MAX9917
Open-Loop Gain
A
VOL
www.maximintegrated.com
Maxim Integrated
│
2
MAX9914–MAX9917
1MHz, 20μA, Rail-to-Rail
I/O Op Amps with Shutdown
Electrical Characteristics (continued)
(V
DD
= 1.8V to 5.5V, V
SS
= 0V, V
CM
= 0V, V
OUT
= V
DD
/2, R
L
= ∞ connected to V
DD
/2,
SHDN_
= V
DD
,
T
A
= +25°C,
unless
otherwise noted.) (Note 1)
PARAMETER
SHDN_
Logic Low
SHDN
_ Logic High
SHDN_
Input Bias Current
Output Leakage in Shutdown
Gain-Bandwidth Product
Phase Margin
Gain Margin
Slew Rate
Capacitive-Load Stability (See
the
Driving Capacitive Loads
Section)
Input Voltage-Noise Density
Input Current-Noise Density
Settling Time
Delay Time to Shutdown
Delay Time to Enable
Power-Up Time
t
SH
t
EN
A
V
= 1V/V
C
LOAD
No sustained
oscillations
f = 1kHz
f = 1kHz
To 0.1%, V
OUT
= 2V step, A
V
= -1V/V
I
DD
= 5% of normal operation,
V
DD
= 5.5V, V
SHDN_
= 5.5V to 0 step
V
OUT
= 2.7V, V
OUT
settles to 0.1%,
V
DD
= 5.5V, V
SHDN
_ = 0 to 5.5V step
V
DD
= 0 to 5.5V step
A
V
= 10V/V
R
L
= 5kΩ, A
V
= 1V/V
R
ISO
= 1kΩ, A
V
= 1V/V
C
L
= 15pF
C
L
= 15pF
SYMBOL
V
IL
V
IH
I
IL
I
IH
I
OUT(SHDN_)
CONDITIONS
V
DD
= 1.8V to 3.6V, MAX9915/MAX9917
V
DD
= 3.6V to 5.5V, MAX9915/MAX9917
V
DD
= 1.8V to 3.6V, MAX9915/MAX9917
V
DD
= 3.6V to 5.5V, MAX9915/MAX9917
SHDN_
= V
SS
, MAX9915/MAX9917 (Note 2)
SHDN_
= V
DD
, MAX9915/MAX9917
SHDN_
= V
SS
, V
OUT
= 0V to V
DD
,
MAX9915/MAX9917
1
1
45
10
0.5
30
100
100
100
160
0.001
3.5
2
10
2
nV/√Hz
pA/√Hz
µs
µs
µs
µs
pF
1.4
2
1
500
500
MIN
TYP
MAX
0.4
0.8
UNITS
V
V
nA
nA
MHz
degrees
dB
V/µs
Electrical Characteristics
(V
DD
= 1.8V to 5.5V, V
SS
= 0V, V
CM
= 0V, V
OUT
= V
DD
/2, R
L
= ∞ connected to V
DD
/2,
SHDN_
= V
DD
,
T
A
= -40°C to +85°C,
unless
otherwise noted.) (Note 1)
PARAMETER
Supply Voltage Range
Supply Current
Shutdown Supply Current
Input Offset Voltage
SYMBOL
V
DD
I
DD
I
DD(SHDN_)
V
OS
CONDITIONS
Guaranteed by PSRR test
MAX9914/MAX9915
MAX9916/MAX9917
V
DD
= 5.5V
MIN
1.8
TYP
MAX
5.5
29
60
1
±3
UNITS
V
µA
µA
mV
SHDN_
= GND, MAX9915/MAX9917
www.maximintegrated.com
Maxim Integrated
│ 3
MAX9914–MAX9917
1MHz, 20μA, Rail-to-Rail
I/O Op Amps with Shutdown
Electrical Characteristics (continued)
(V
DD
= 1.8V to 5.5V, V
SS
= 0V, V
CM
= 0V, V
OUT
= V
DD
/2, R
L
= ∞ connected to V
DD
/2,
SHDN_
= V
DD
,
T
A
= -40°C to +85°C,
unless
otherwise noted.) (Note 1)
PARAMETER
Input-Offset-Voltage
Temperature Coefficient
(Note 2)
Input Bias Current
Input Offset Current
Input Common-Mode Range
Common-Mode Rejection Ratio
Power-Supply Rejection Ratio
SYMBOL
TC
VOS
I
B
I
OS
V
CM
CMRR
PSRR
Guaranteed by CMRR test
-0.05V < V
CM
< V
DD
+ 0.05V, V
DD
= 5.5V
1.8V < V
DD
< 5.5V
25mV < V
OUT
< V
DD
- 25mV,
R
L
= 100kΩ, V
DD
= 5.5V
150mV < V
OUT
< V
DD
- 150mV,
R
L
= 5kΩ, V
DD
= 5.5V
V
DD
- V
OUT
V
OUT
- V
SS
R
L
= 100kΩ
R
L
= 5kΩ
R
L
= 100kΩ
R
L
= 5kΩ
V
SS
- 0.05
60
60
85
dB
85
6
90
5
90
0.4
0.8
1.4
2
5
1000
1000
mV
mV
V
V
nA
nA
nA
CONDITIONS
MIN
TYP
±5
±30
±20
V
DD
+ 0.05
MAX
UNITS
µV/°C
pA
pA
V
dB
dB
Open-Loop Gain
A
VOL
Output-Voltage-Swing High
Output-Voltage-Swing Low
SHDN_
Logic Low
SHDN_
Logic High
SHDN_
Input Bias Current
Output Leakage in Shutdown
V
OH
V
OL
V
IL
V
IH
I
IL
I
IH
I
OUT(SHDN_)
V
DD
= 1.8V to 3.6V, MAX9915/MAX9917
V
DD
= 3.6V to 5.5V, MAX9915/MAX9917
V
DD
= 1.8V to 3.6V, MAX9915/MAX9917
V
DD
= 3.6V to 5.5V, MAX9915/MAX9917
SHDN_
= V
SS
, MAX9915/MAX9917
SHDN_
= V
DD
, MAX9915/MAX9917
SHDN_
= V
SS
, V
OUT
= 0V to V
DD
,
MAX9915/MAX9917
Note 1:
Specifications are 100% tested at T
A
= +25°C (exceptions noted). All temperature limits are guaranteed by design.
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