19-5338; Rev 0; 8/10
Low-Power, High-Efficiency,
Single/Dual, Rail-to-Rail I/O Op Amps
General Description
The MAX9613/MAX9615 are low-power precision op amps
with rail-to-rail inputs and rail-to-rail outputs. They feature
precision MOS inputs powered from an internal charge
pump to eliminate crossover distortion that is common
to complementary input-pair type amplifier architectures.
These devices are ideal for a large number of signal pro-
cessing applications such as photodiode transimped-
ance amplifiers and filtering/amplification of a wide
variety of signals in industrial equipment. The devices
also feature excellent RF immunity, making them ideal for
portable applications.
The MAX9613/MAX9615 feature a self-calibration system
(on power-up), eliminating the effects of temperature and
power-supply variations.
The MAX9613/MAX9615 are capable of operating from a
1.7V to 5.5V supply voltage over the 0NC to +70NC tem-
perature range, and from 1.8V to 5.5V over the -40NC to
+125NC automotive temperature range.
Both singles and duals are available in tiny SC70 pack-
ages. The MAX9613 features a high-impedance output
while in shutdown.
PART
MAX9613AXT+T
MAX9615AXA+T
Features
S
V
CC
= 1.7V to 5.5V (0°C to +70°C)
S
V
CC
= 1.8V to 5.5V (-40°C to +125°C)
S
Low 100µV (max) V
OS
S
Rail-to-Rail Inputs and Outputs
S
Low 220µA Supply Current, 1µA in Shutdown
S
Autotrim Offset Calibration
S
2.8MHz Bandwidth
S
Excellent RF Immunity
MAX9613/MAX9615
Ordering Information
TEMP
RANGE
-40NC to
+125NC
-40NC to
+125NC
PIN-
PACKAGE
6 SC70
8 SC70
TOP
MARK
+ADK
+AAD
+Denotes
lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Applications
Notebooks, Portable Media Players
Industrial and Medical Sensors
General Purpose Signal Processing
Typical Application Circuit
15nF
+3.3V
2.4kI
22kI
330pF
10kI
ADC
3.3nF
MAX9613
MAX11613
CORNER FREQUENCY = 10kHz
SALLEN-KEY FILTER
_______________________________________________________________
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.
Low-Power, High-Efficiency,
Single/Dual, Rail-to-Rail I/O Op Amps
MAX9613/MAX9615
ABSOLUTE MAXIMUM RATINGS
IN+, IN-,
SHDN,
V
CC
to GND..................................-0.3V to +6V
OUT to GND ............................................. -0.3V to (V
CC
+ 0.3V)
Short-Circuit (GND) Duration to Either Supply Rail................. 5s
Continuous Input Current (any pin).................................
Q20mA
Thermal Limits (Note 1) Multilayer PCB
Continuous Power Dissipation (T
A
= +70NC)
6-Pin SC70 (derate 3.1mW/NC above +70NC) .............245mW
B
JA
.......................................................................326.5NC/W
B
JC
..........................................................................115NC/W
8-Pin SC70 (derate 3.1mW/NC above +70NC) .............245mW
B
JA
.......................................................................... 326NC/W
B
JC
..........................................................................115NC/W
Operating Temperature Range ........................ -40NC to +125NC
Storage Temperature Range............................ -65NC to +150NC
Junction Temperature .....................................................+150NC
Lead Temperature (soldering, 10s) ................................+300NC
Soldering Temperature (reflow) ......................................+260NC
Note 1:
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to
www.maxim-ic.com/thermal-tutorial.
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
CC
= V
SHDN
= 3.3V, V
IN+
= V
IN-
= V
CM
= 0V, R
L
= 10kI to V
CC
/2, T
A
= -40NC to +125NC. Typical values are at T
A
= +25NC, unless
otherwise noted.) (Note 2)
PARAMETER
DC CHARACTERISTICS
Input Voltage Range
V
IN+
, V
IN-
Guaranteed by CMRR test
T
A
= +25NC
Input Offset Voltage
V
OS
T
A
= -40NC to +125NC after power-up auto-
calibration
T
A
= -40NC to +125NC
Input Offset Voltage Drift
V
OS
- TC
T
A
= +40°C to +25°C
T
A
= +70°C
T
A
= +85°C
T
A
= +125°C
V
CM
= -0.1V to V
CC
+ 0.1V, T
A
= +25NC
Common-Mode Rejection Ratio
CMRR
V
CM
= -0.1V to V
CC
+ 0.1V, T
A
= -40NC to
+125NC
T
A
= +40°C to +25°C
Input Offset Current (Note 3)
I
OS
T
A
= +70°C
T
A
= +85°C
T
A
= +125°C
+0.4V
P
V
OUT
P
V
CC
- 0.4V, R
L
= 10kI
To V
CC
To GND
R
L
= 10kI
Output Voltage Low
V
OL
R
L
= 600I
R
L
= 32I
0.170
99
120
275
75
0.011
0.1
V
82
80
0.5
7
25
400
dB
mA
pA
100
dB
1
1
-0.1
23
V
CC
+
0.1
100
150
750
7
1.55
45
135
1.55
nA
FV/NC
pA
FV
V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Input Bias Current (Note 3)
I
B
Open-Loop Gain
Output Short-Circuit Current
(Note 4)
A
OL
I
SC
2
______________________________________________________________________________________
Low-Power, High-Efficiency,
Single/Dual, Rail-to-Rail I/O Op Amps
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= V
SHDN
= 3.3V, V
IN+
= V
IN-
= V
CM
= 0V, R
L
= 10kI to V
CC
/2, T
A
= -40NC to +125NC. Typical values are at T
A
= +25NC, unless
otherwise noted.) (Note 2)
PARAMETER
SYMBOL
R
L
= 10kI
Output Voltage High
V
OH
R
L
= 600I
R
L
= 32I
AC CHARACTERISTICS
Input Voltage Noise Density
Input Voltage Noise
Input Current Noise Density
Gain Bandwidth
Slew Rate
Capacitive Loading
Total Harmonic Distortion
e
n
I
n
GBW
SR
C
LOAD
THD
No sustained oscillation
f = 10kHz, V
OUT
= 2V
P-P
, A
V
= 1V/V
Guaranteed by PSRR
T
A
= 0NC to +70NC, guaranteed by PSSR
T
A
= +25NC
T
A
= -40NC to +125NC
Per amplifier, T
A
= +25NC
Per amplifier
MAX9613 only
MAX9613 only
MAX9613 only
1.4
10
20
10
1.8
1.7
85
83
220
305
420
1
0.5
106
f = 10kHz
f = 10kHz
28
5
0.1
2.8
1.3
200
85
5.5
5.5
Total noise 0.1Hz
P
f
P
10Hz
nV/√Hz
FV
P-P
fA/√Hz
MHz
V/Fs
pF
dB
CONDITIONS
MIN
V
CC
-
0.011
V
CC
-
0.1
V
CC
-
0.560
V
TYP
MAX
UNITS
MAX9613/MAX9615
POWER-SUPPLY CHARACTERISTICS
Power-Supply Range
Power-Supply Rejection Ratio
Quiescent Current
Shutdown Supply Current
Shutdown Input Low
Shutdown Input High
Output Impedance in Shutdown
Turn-On Time from
SHDN
Power-Up Time
V
CC
PSRR
I
CC
I
SHDN
V
IL
V
IH
V
dB
FA
FA
V
V
MI
Fs
ms
R
OUT_SHDN
MAX9613 only
MAX9613 only
t
ON
t
UP
Note 2:
All devices are 100% production tested at T
A
= +25NC. Temperature limits are guaranteed by design.
Note 3:
Guaranteed by design, not production tested.
Note 4:
Do not exceed package thermal dissipation in the
Absolute Maximum Ratings
section.
_______________________________________________________________________________________
3
Low-Power, High-Efficiency,
Single/Dual, Rail-to-Rail I/O Op Amps
MAX9613/MAX9615
Typical Operating Characteristics
(V
CC
= 3.3V, V
IN+
= VI
N-
= 0V, V
CM
= V
CC
/2, R
L
= 10kI to V
CC
/2, values are at T
A
= +25NC, unless otherwise noted.)
OFFSET VOLTAGE vs. COMMON-MODE
VOLTAGE vs. TEMPERATURE
MAX9613 toc01
OFFSET VOLTAGE vs. SUPPLY VOLTAGE
MAX9613 toc02
OFFSET VOLTAGE HISTOGRAM
35
30
OCCURANCE (%)
MAX9613 toc03
150
100
OFFSET VOLTAGE (µV)
50
0
-50
-100
-150
-200
-0.5
0
T
A
= +125°C
T
A
= -40°C
T
A
= +25°C
60
50
OFFSET VOLTAGE (µV)
40
30
20
10
0
40
T
A
= +85°C
25
20
15
10
5
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
COMMON-MODE VOLTAGE (V)
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
0
10
20
30
40
50
60
SUPPLY VOLTAGE (V)
OFFSET VOLTAGE (µV)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX9613 toc04
SUPPLY CURRENT vs. TEMPERATURE
R
LOAD
= NO LOAD
250
SUPPLY CURRENT (µA)
200
150
100
50
0
-50
-25
0
25
50
75
100
125
TEMPERATURE (°C)
MAX9613 toc05
INPUT BIAS CURRENT
vs. COMMON-MODE VOLTAGE
MAX9613 toc06
300
R
LOAD
= NO LOAD
250
SUPPLY CURRENT (µA)
200
150
100
50
0
300
10,000
1000
INPUT BIAS CURRENT (pA)
T
A
= +125°C
100
10
1
0.1
T
A
= -40°C
0.01
0
0.5
1.0
1.5
2.0
2.5
T
A
= 0°C
T
A
= +85°C
T
A
= +25°C
1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5
SUPPLY VOLTAGE (V)
3.0
COMMON-MODE VOLTAGE (V)
INPUT BIAS CURRENT vs.
COMMON-MODE VOLTAGE
MAX9613 toc07
INPUT BIAS CURRENT
vs. TEMPERATURE
V
CM
= 0V
INPUT BIAS CURRENT (pA)
10
MAX9613 toc08
POWER-UP TRANSIENT
MAX9613 toc09
1.0
0.8
INPUT BIAS CURRENT (pA)
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1.0
0
T
A
= +25°C
100
V
OUT
200mV/div
GND
1
0.1
V
CC
2V/div
GND
-50
-25
0
25
50
75
100
125
4ms/div
0.01
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
COMMON-MODE VOLTAGE (V)
TEMPERATURE (°C)
4
______________________________________________________________________________________
Low-Power, High-Efficiency,
Single/Dual, Rail-to-Rail I/O Op Amps
Typical Operating Characteristics (continued)
(V
CC
= 3.3V, V
IN+
= VI
N-
= 0V, V
CM
= V
CC
/2, R
L
= 10kI to V
CC
/2, values are at T
A
= +25NC, unless otherwise noted.)
COMMON-MODE REJECTION RATIO
vs. FREQUENCY
MAX9613 toc10
MAX9613/MAX9615
INPUT VOLTAGE NOISE vs. FREQUENCY
MAX9613 toc11
INPUT CURRENT NOISE vs. FREQUENCY
MAX9613 toc12
120
COMMON-MODE REJECTION RATIO (dB)
100
80
60
40
20
0
0.001 0.01
100
90
INPUT VOLTAGE NOISE (nV/√Hz)
80
70
60
50
40
30
20
10
0
0.30
INPUT CURRENT NOISE (fA/√
Hz
)
0.25
0.20
0.15
0.10
0.05
0
0.1
1
10
100
1000 10,000
100
FREQUENCY (kHz)
1k
10k
FREQUENCY (Hz)
100k
10
100
1k
FREQUENCY (Hz)
10k
100k
RECOVERY FROM SHUTDOWN
MAX9613 toc13
TOTAL HARMONIC DISTORTION
TOTAL HARMONIC DISTORTION PLUS NOISE (dB)
MAX9613 toc14
TOTAL HARMONIC DISTORTION
PLUS NOISE
V
IN
= 2V
P-P
A
V
= 1V/V
MAX9613 toc15
-60
TOTAL HARMONIC DISTORTION (dB)
-70
-80
-90
-100
-110
-120
V
IN
= 2V
P-P
A
V
= 1V/V
0
-20
-40
-60
-80
-100
-120
10
V
OUT
200mV/div
GND
V
CC
2V/div
GND
10µs/div
10
100
1k
FREQUENCY (Hz)
10k
100k
100
1k
FREQUENCY (Hz)
10k
100k
OUTPUT HIGH VOLTAGE
vs. OUTPUT SOURCE CURRENT
3.3
OUTPUT HIGH VOLTAGE (V)
3.2
3.1
3.0
2.9
2.8
2.7
2.6
2.5
2.4
0
5
10
15
20
25
30
OUTPUT SOURCE CURRENT (mA)
T
A
= +125°C
T
A
= +85°C
T
A
= -40°C
T
A
= +25°C
MAX9613 toc16
OUTPUT LOW VOLTAGE
vs. OUTPUT SINK CURRENT
0.16
OUTPUT LOW VOLTAGE (V)
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0
0
5
T
A
= -40°C
10
15
20
25
30
T
A
= +25°C
T
A
= +125°C
T
A
= +85°C
MAX9613-15 toc17
0.1Hz TO 10Hz NOISE
MAX9613 toc18
3.4
0.18
V
OUT
1µV/div
10s/div
OUTPUT SINK CURRENT (mA)
_______________________________________________________________________________________
5
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