19-5302; Rev 0; 8/10
Low-Power Single/Dual, Rail-to-Rail Op Amps
General Description
The MAX9614/MAX9616 are low-power precision op
amps that feature precision MOS inputs.
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 MAX9614/MAX9616 are capable of operating from
a 2.5V to 5.5V supply voltage over the -40NC to +125NC
automotive temperature range.
Both singles and duals are available in tiny SC70 pack-
ages. The MAX9614 features an active-low shutdown pin.
PART
MAX9614AXT+T
MAX9616AXA+T
Features
S
V
CC
= 2.5V to 5.5V (-40°C to +125°C)
S
Low 100µV (max) V
OS
S
1µA Supply Current in Shutdown, 175µA
Operating
S
Small SC70 Package
S
2.8MHz Bandwidth
S
Excellent RF
Immunity
MAX9614/MAX9616
Ordering Information
TEMP
RANGE
-40NC to
+125NC
-40NC to
+125NC
PIN-
PACKAGE
6 SC70
8 SC70
TOP
MARK
+ADL
+AAE
Applications
Notebooks, Portable Media Players
Industrial and Medical Sensors
General Purpose Signal Processing
+Denotes
lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Typical Application Circuit
66.5kI
INPUT
4.7nF
121kI
220pF
66.5kI
V
CC
20kI
V
CC
/2
1.21kI
MAX11613
100nF
ADC
20kI
MAX9614
USING THE MAX9614 OUTPUT AMPLIFIER AS AN ANTI-ALIASING FILTER (CORNER FREQUENCY = 1.3kHz) TO MAXIMIZE NYQUIST BANDWIDTH.
_______________________________________________________________
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 Single/Dual, Rail-to-Rail Op Amps
MAX9614/MAX9616
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, OUT, OUTA, OUTB ................. 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
Junction Temperature .....................................................+150NC
Lead Temperature (soldering, 10s) ................................+300NC
Soldering Temperature (reflow) ......................................+240NC
Note 1:
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a 4-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
= GND, 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
autocalibration
T
A
= -40NC to +125NC
Input Offset Voltage Drift
V
OS
- TC
T
A
= -40NC to +25°C
T
A
= +70NC
T
A
= +85NC
T
A
= +125NC
T
A
= -40NC to +25°C
T
A
= +70NC
T
A
= +85NC
T
A
= +125NC
V
CM
= -0.1V to V
CC
- 1.4V, T
A
= +25NC
Common-Mode Rejection Ratio
CMRR
V
CM
= -0.1V to V
CC
- 1.4V, T
A
= -40NC to
+125NC
+0.4V
P
V
OUT
P
V
CC
- 0.4V, R
L
= 10kI
+0.4V
P
V
OUT
P
V
CC
- 0.4V, R
L
= 600I
To V
CC
To GND
R
L
= 10kI
Output Voltage Low
V
OL
R
L
= 600I
R
L
= 32I
80
78
99
93
115
110
275
75
1
11
170
11
100
mV
95
dB
1
1
-0.1
17
V
CC
- 1.4
100
165
750
7.5
1.55
45
135
1.55
0.5
7
25
4000
pA
nA
pA
FV/NC
FV
V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Input Bias Current (Note 3)
I
B
Input Offset Current (Note 3)
I
OS
Open-Loop Gain
Output Short-Circuit Current
(Note 4)
A
OL
I
SC
dB
mA
2
______________________________________________________________________________________
Low-Power Single/Dual, Rail-to-Rail Op Amps
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= V
SHDN
= 3.3V, V
IN+
= V
IN-
= V
CM
= GND, 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
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
e
n
I
n
GBW
SR
C
LOAD
THD
V
CC
PSRR
I
CC
I
SHDN
V
IL
V
IH
No sustained oscillation
f = 10kHz, V
OUT
= 2V
P-P
, A
V
= 1V/V
Guaranteed by PSRR
T
A
= +25NC
T
A
= -40NC to +125NC
T
A
= +25NC, per amplifier
T
A
= -40NC to +125NC, per amplifier
MAX9614 only
MAX9614 only
MAX9614 only
1.4
10
20
10
2.5
85
83
170
255
350
1
0.5
106
f = 10kHz
f = 10kHz
28
5
0.1
2.8
1.3
200
-85
5.5
Total noise 0.1Hz
P
f
P
10Hz
nV/√Hz
FV
P-P
fA/√Hz
MHz
V/Fs
pF
dB
V
dB
FA
FA
V
V
MI
Fs
ms
CONDITIONS
MIN
V
CC
-
11
V
CC
-
100
TYP
V
CC
-
2
V
CC
-
30
V
CC
-
560
mV
MAX
UNITS
MAX9614/MAX9616
POWER-SUPPLY CHARACTERISTICS
R
OUT_SHDN
MAX9614 only
MAX9614 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 exceeed package thermal dissipation in the
Absolute Maximum Ratings
section.
_______________________________________________________________________________________
3
Low-Power Single/Dual, Rail-to-Rail Op Amps
MAX9614/MAX9616
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
MAX9614 toc01
OFFSET VOLTAGE vs. SUPPLY VOLTAGE
MAX9614 toc02
OFFSET VOLTAGE HISTOGRAM
35
30
OCCURANCE (%)
MAX9614 toc03
250
200
OFFSET VOLTAGE (µV)
60
50
OFFSET VOLTAGE (µV)
40
30
20
10
0
40
T
A
= +125°C
T
A
= +85°C
150
100
50
0
-50
-100
-0.5
0
0.5
1.0
1.5
2.0
2.5
COMMON-MODE VOLTAGE (V)
T
A
= +25°C
T
A
= -40°C
25
20
15
10
5
0
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
MAX9614 toc04
SUPPLY CURRENT vs. TEMPERATURE
MAX9614 toc05
INPUT BIAS CURRENT
vs. COMMON-MODE VOLTAGE
MAX9614 toc06
300
T
A
= +125°C
250
SUPPLY CURRENT (µA)
200
150
100
50
0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
T
A
= -40°C
T
A
= +25°C
T
A
= +85°C
300
R
LOAD
= NO LOAD
250
SUPPLY CURRENT (µA)
200
150
100
50
0
10,000
1000
INPUT BIAS CURRENT (pA)
T
A
= +125°C
100
10
1
0.1
T
A
= -40°C
T
A
= 0°C
1.5
2.0
2.5
0.01
0
0.5
1.0
T
A
= +85°C
T
A
= +25°C
6.0
-50
-25
0
25
50
75
100
125
3.0
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
COMMON-MODE VOLTAGE (V)
INPUT BIAS CURRENT vs.
COMMON-MODE VOLTAGE
MAX9614 toc07
INPUT BIAS CURRENT
vs. TEMPERATURE
V
CM
= 0V
INPUT BIAS CURRENT (pA)
10
MAX9614 toc08
POWER-UP TRANSIENT
MMAX9614-16 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
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0.01
TEMPERATURE (°C)
COMMON-MODE VOLTAGE (V)
4
______________________________________________________________________________________
Low-Power Single/Dual, Rail-to-Rail 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.)
MAX9614/MAX9616
COMMON-MODE REJECTION RATIO
vs. FREQUENCY
MAX9614 toc10
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX9614-16 toc11
INPUT VOLTAGE NOISE vs. FREQUENCY
90
INPUT VOLTAGE NOISE (nV/
√
Hz)
80
70
60
50
40
30
20
10
0
100
1k
10k
100k
FREQUENCY (Hz)
MAX9614 toc12
100
COMMON-MODE REJECTION RATIO (dB)
90
80
70
60
50
40
30
20
10
0
0.01
0.1
1
10
100
120
POWER-SUPPLY REJECTION RATIO (dB)
100
80
60
40
20
0
0.001 0.01
100
1000 10,000
0.1
1
10
100
1000 10,000
FREQUENCY (kHz)
FREQUENCY (kHz)
INPUT CURRENT NOISE vs. FREQUENCY
MAX9614-16 toc13
RECOVERY FROM SHUTDOWN
MAX9614-16 toc14
TOTAL HARMONIC DISTORTION
V
IN
= 2V
P-P
A
V
= 1V/V
MAX9614 toc15
0.30
INPUT CURRENT NOISE (fA/√Hz)
0.25
0.20
0.15
0.10
0.05
0
10
100
1k
FREQUENCY (Hz)
10k
-60
TOTAL HARMONIC DISTORTION (dB)
-70
-80
-90
-100
-110
-120
V
OUT
200mV/div
GND
V
CC
2V/div
GND
100k
10µs/div
10
100
1k
FREQUENCY (Hz)
10k
100k
TOTAL HARMONIC DISTORTION
PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE (dB)
V
IN
= 2V
P-P
A
V
= 1V/V
MAX9614-16 toc16
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
T
A
= +125°C
T
A
= +85°C
T
A
= -40°C
T
A
= +25°C
MAX9614-16 toc17
OUTPUT LOW VOLTAGE
vs. OUTPUT SINK CURRENT
0.16
OUTPUT LOW VOLTAGE (V)
-20
-40
-60
-80
-100
-120
10
T
A
= +85°C
0.14
0.12
0.10
0.08
0.06
0.04
0.02
0
T
A
= -40°C
0
5
10
15
20
25
T
A
= +25°C
T
A
= +125°C
100
1k
FREQUENCY (Hz)
10k
100k
0
5
10
15
20
25
30
30
OUTPUT SOURCE CURRENT (mA)
OUTPUT SINK CURRENT (mA)
_______________________________________________________________________________________
MAX9614-16 toc18
0
3.4
0.18
5
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