19-5227; Rev 0; 9/10
EVALUATION KIT
AVAILABLE
Precision, High-Bandwidth Op Amp
General Description
The MAX9622 op amp features rail-to-rail output and
50MHz GBW at just 1mA supply current. At power-up,
this device autocalibrates its input offset voltage to less
than 100FV. It operates from a single-supply voltage of
2.0V to 5.25V.
The MAX9622 is available in a tiny 2mm x 2mm, 5-pin
SC70 package and is rated over the -40NC to +125NC
automotive temperature range.
Features
S 50MHz UGBW
S
Low Input Voltage Offset Voltage (100µV max)
S
Input Common-Mode Voltage Range Extends
Below Ground
S Wide 2.0V to 5.25V Supply Range
S
Low 1mA Supply Current
MAX9622
Applications
Power Modules
Automotive Power Supplies
ADC Drivers for Industrial Systems
Instrumentation
Filters
Ordering Information
PART
MAX9622AXK+T
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
TEMP
RANGE
-40°C to
+125°C
PIN-
PACKAGE
5 SC70 AUA
TOP
MARK
Typical Application Circuit
INPUT
5.5kI 5.5kI
4.7nF
20kI
V
CC
14.3kI
47pF
/2
V
CC
OUTPUT
20kI
MAX9622
USING THE MAX9622 AS A LOWPASS BESSEL FILTER (CORNER FREQUENCY = 100kHz).
_______________________________________________________________ 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.
Precision, High-Bandwidth Op Amp
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VCC to GND) ..............................-0.3V to +5.5V
All Other Pins ................................(GND - 0.3V) to (V
Short-Circuit Duration to GND or V
.................................... 1s
CC
+ 0.3V)
CC
Continuous Input Current (any pins) ............................... Q20mA
Thermal Limits (Note 1)
Continuous Power Dissipation (T
= +70NC)
A
5-Pin SC70 (derate 3.1mW/NC above +70NC) ..........245.4mW
MAX9622
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
(VCC = 5V, V
IN+ = VIN-
(Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
POWER SUPPLY
Supply Voltage Range V
Supply Current I
Power-Supply Rejection Ratio PSRR
Power-Up Time t
DC SPECIFICATIONS
Input Offset Voltage V
Input Offset Voltage Drift
Input Bias Current I
Input Offset Current I
Input Common-Mode Range V
Common-Mode Rejection Ratio CMRR
Large-Signal Gain A
Output Voltage Swing
Short-Circuit Current I
= 0V, RL = 10kI to VCC/2, TA = -40NC to +125NC, unless otherwise noted. Typical values are at TA = +25NC.)
Guaranteed by PSRR 2 5.25 V
CC
CC
ON
DV
OS
VOL
V
OH
No load
T
= +25NC
A
-40NC P T
After power-up autocalibration 8 100
OS
-40NC P T
OS
TA = +25NC
B
-40NC P T
P +125NC
A
P +125NC
A
P +125NC
A
TA = +25NC
-40NC P T
Guaranteed by CMRR, TA = -40NC to +125NC
CM
T
= +25NC
A
-40NC P T
400mV P V
V
CC
400mV P V
V
CC
1kI to V
V
-
R L = 10kI to VCC/2
CC
P +125NC
A
P +125NC
A
OUT
- 400mV
OUT
- 400mV, R
/2
CC
R L = 10kI to VCC/2
V
SC
R
OL
= 10kI to GND, TA = +25NC
L
R
= 10kI to GND
L
(Note 3) 80 mA
Operating Temperature Range ........................ -40NC to +125NC
Junction Temperature .....................................................+150NC
Storage Temperature Range ............................ -65NC to +150NC
Lead Temperature (soldering, 10s) ................................+300NC
Soldering Temperature (reflow) ......................................+260NC
= +25NC
T
A
-40NC P T
P +125NC
A
1 1.5
2.1
97 126
93
3 ms
8 3000
3
62 150
320
3 12
30
-0.1 V
-1.3 V
CC
87 121
80
P
P
=
L
T
= +25NC
A
-40NC P T
= +25NC
T
A
-40NC P T
P +125NC
A
P +125NC
A
91 103
84
77 89
69
60
60
40
48
mA
dB
FV
FV/NC
nA
nA
dB
dB
mV
2 ______________________________________________________________________________________
Precision, High-Bandwidth Op Amp
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 5V, V
IN+ = VIN-
(Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
AC SPECIFICATIONS
Gain-Bandwidth Product GBW 50 MHz
Large-Signal Bandwidth BW
Slew Rate SR V
Settling Time t
Total Harmonic Distortion THD f = 10kHz, V
Input Voltage Noise Density E
Input Current Noise Density I
Note 2: The device is 100% production tested at TA = +25NC. Temperature limits are guaranteed by design.
Note 3: Guaranteed by design.
Typical Operating Characteristics
(VCC = 5V, RL = 10kI to VCC/2, TA = +25NC, unless otherwise noted.)
= 0V, RL = 10kI to VCC/2, TA = -40NC to +125NC, unless otherwise noted. Typical values are at TA = +25NC.)
V
LS
S
N
N
= 2V
OUT
OUT
To 0.1%, V
= 2V
P-P
, 10% to 90% 20
P-P
OUT
OUT
= 2V
, CL = 10pF 200 ns
P-P
= 2V
P-P
f = 10kHz 13
f = 10kHz 3
3 MHz
V/Fs
90 dB
nV/√Hz
pA/√Hz
MAX9622
SUPPLY CURRENT vs. SUPPLY VOLTAGE
1.00
0.98
0.96
0.94
0.92
0.90
0.88
0.86
SUPPLY CURRENT (mA)
0.84
0.82
0.80
2.0 5.5
SUPPLY VOLTAGE (V)
OFFSET VOLTAGE vs. TEMPERATURE
200
150
100
-50
OFFSET VOLTAGE (µV)
-100
-150
-200
R
= NO LOAD
LOAD
50
0
-50 125
TEMPERATURE (°C)
QUIESCENT CURRENT vs. TEMPERATURE
2.0
1.8
MAX9622 toc01
1.6
1.4
1.2
1.0
QUIESCENT CURRENT (mA)
0.8
0.6
5.04.53.5 4.03.02.5
0.4
R
= NO LOAD
LOAD
-50 125
TEMPERATURE (°C)
10075-25 0 25 50
MAX9622 toc02
INPUT OFFSET VOLTAGE (µV)
vs. COMMON-MODE VOLTAGE
30
25
20
15
10
5
0
-0.5 4.0
COMMON-MODE VOLTAGE (V)
MAX9622 toc03
3.53.02.52.01.51.00.50
INPUT OFFSET VOLTAGE
INPUT OFFSET VOLTAGE
15
vs. SUPPLY VOLTAGE
VCM = 0V
10
MAX9622 toc04
10075-25 0 25 50
5
0
-5
-10
-15
INPUT OFFSET VOLTAGE (µV)
-20
-25
-30
2.0 5.5
SUPPLY VOLTAGE (V)
MAX9622 toc05
OCCURANCE (%)
5.04.53.5 4.03.02.5
OFFSET VOLTAGE HISTOGRAM
25
20
15
10
5
0
0
OFFSET VOLTAGE (µV)
MAX9622 toc06
403530252015105
_______________________________________________________________________________________ 3
Precision, High-Bandwidth Op Amp
Typical Operating Characteristics (continued)
(VCC = 5V, RL = 10kI to VCC/2, TA = +25NC, unless otherwise noted.)
OUTPUT HIGH VOLTAGE vs. TEMPERATURE
SOURCING CURRENT (V
200
I
= 5mA
MAX9622
150
100
50
OUTPUT HIGH VOLTAGE (mV)
0
-50 125
SOURCE
I
= 1mA I
SOURCE
TEMPERATURE (°C)
INPUT BIAS CURRENT
vs. TEMPERATURE
200
150
100
INPUT BIAS CURRENT (nA)
50
IN+
CC
SOURCE
I
SOURCE
IN-
- V
OUT)
= 0.1mA
= 0.01mA
1007550250-25
OUTPUT LOW VOLTAGE vs. TEMPERATURE
160
140
MAX9622 toc07
120
100
80
60
40
OUTPUT LOW VOLTAGE (mV)
20
0
-50 125
COMMON-MODE REJECTION RATIO
0
R
LOAD
-20
MAX9622 toc10
-40
-60
CMRR (dB)
-80
-100
SINKING CURRENT
I
= 5mA
SINK
I
= 1mA
SINK
TEMPERATURE (°C)
vs. FREQUENCY
= NO LOAD
I
I
SINK
SINK
= 0.1mA
= 0.01mA
10075-25 0 25 50
INPUT BIAS CURRENT vs. TEMPERATURE
200
MAX9622 toc08
150
100
INPUT BIAS CURRENT (nA)
50
0
-50 125
0
-20
MAX9622 toc11
-40
-60
PSRR (dB)
-80
-100
R
= NO LOAD
LOAD
IN+
IN-
1007550250-25
TEMPERATURE (°C)
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
R
= NO LOAD
LOAD
MAX9622 toc09
MAX9622 toc12
400nV/div
0
TEMPERATURE (°C)
0.01Hz TO 10Hz INPUT VOLTAGE NOISE
1s/div
10075-25 0 25 50-50 125
MAX9622 toc13
-120
0.01 10,000
FREQUENCY (kHz)
INPUT VOLTAGE NOISE vs. FREQUENCY
50
R
= NO LOAD
LOAD
5
0
10 10,000
FREQUENCY (Hz)
1000100
INPUT VOLTAGE NOISE (nV/√Hz)
45
40
35
30
25
20
15
10
10001001010.1
-120
0.01 10,000
FREQUENCY (kHz)
INPUT CURRENT NOISE vs. FREQUENCY
16
R
= NO LOAD
LOAD
8
6
4
2
0
10 10,000
MAX9622 toc14
14
12
10
INPUT CURRENT NOISE (pA/√Hz)
4 ______________________________________________________________________________________
10001001010.1
MAX9622 toc15
1000100
FREQUENCY (Hz)
Precision, High-Bandwidth Op Amp
Typical Operating Characteristics (continued)
(VCC = 5V, RL = 10kI to VCC/2, TA = +25NC, unless otherwise noted.)
MAX9622
V
5V/div
GND
V
OUT
500mV/div
GND
V
OUT
1V/div
TURN-ON RESPONSE
= 22.34mV, AV = 100V/V
V
IN
CC
OUTPUT RECOVERY FROM SATURATION
SATURATED TO POSITIVE RAIL
V
OUT
MAX9622 toc16
MAX9622 toc18
QUIESCENT CURRENT vs. TEMPERATURE
VCC = 5V, V
2.0
R
= NO LOAD
LOAD
1.8
1.6
1.4
1.2
1.0
QUIESCENT CURRENT (mA)
0.8
0.6
0.4
-50 125
IN SATURATION
OUT
V
= HIGH
OUT
V
= LOW
OUT
TEMPERATURE (°C)
OUTPUT RECOVERY FROM SATURATION
SATURATED TO NEGATIVE RAIL
V
OUT
V
OUT
1V/div
MAX9622 toc17
10075-25 0 25 50
MAX9622 toc19
GND
4µs/div
GND
4µs/div
TOTAL HARMONIC DISTORTION
-40
-50
-60
-70
-80
THD+N (%)
-90
-100
-110
-120
R
= NO LOAD
LOAD
10 100,000
FREQUENCY (kHz)
10,0001000100
PLUS NOISE vs. FREQUENCY
MAX9622 toc20
OPEN-LOOP GAIN vs. FREQUENCY
120
100
80
60
40
OPEN-LOOP GAIN (dB)
20
0
-20
0.01 100,000
R
= NO LOAD
LOAD
FREQUENCY (kHz)
MAX9622 toc21
10,00010001001010.1
_______________________________________________________________________________________ 5
Precision, High-Bandwidth Op Amp
Typical Operating Characteristics (continued)
(VCC = 5V, RL = 10kI to VCC/2, TA = +25NC, unless otherwise noted.)
MAX9622
OUTPUT
50
45
40
35
30
25
20
15
ISOLATION RESISTANCE (I)
10
5
0
LARGE-SIGNAL RESPONSE
AV = 1V/V
1µs/div
MAX9622 toc22
CAPACITIVE LOADING STABILITY
vs. ISOLATION RESISTANCE, AV = 1V/V
STABLE
UNSTABLE
0 1000
CAPACITANCE (pF)
900800600 700200 300 400 500100
MAX9622 toc24
OUTPUT
500mV/div
10,000
1000
LOAD RESISTANCE (I)
100
SMALL-SIGNAL RESPONSE
AV = 1V/V
4µs/div
PARALLEL CAPACITIVE LOADING
UNSTABLE
STABLE
50
CAPACITANCE (pF)
12510075
MAX9622 toc23
VCC = 5V
MAX9622 toc25
150
CROSSTALK vs. FREQUENCY
0
R
= NO LOAD
-20
-40
-60
-80
CROSSTALK (dB)
-100
-120
-140
LOAD
0.1 100,000
FREQUENCY (kHz)
10,0001000100101
MAX9622 toc26
6 ______________________________________________________________________________________
Precision, High-Bandwidth Op Amp
Pin Configuration
TOP VIEW
+
MAX9622
1 5 V
IN+
GND
2
CC
MAX9622
3 4
SC70
OUTIN-
Pin Description
PIN NAME FUNCTION
1 IN+ Positive Input
2 GND Ground
3 IN- Negative Input
4 OUT Output
5 V
CC
Positive Power Supply. Bypass with a 0.1FF capacitor to ground.
_______________________________________________________________________________________ 7
Precision, High-Bandwidth Op Amp
Detailed Description
The MAX9622 is a power-efficient, high-speed op amp
ideal for capturing fast edges in a wide variety of signal
processing applications.
It precisely calibrates its V
on power-up to eliminate
OS
the effects of package stresses, power supplies, and
temperature.
MAX9622
Applications Information
Power-Up Autotrim
The MAX9622 features power-up autotrimming that
allows the devices to achieve less than 100FV of input
offset voltage. The startup sequence takes approximately 4ms to complete after the supply voltage exceeds
an internal threshold of 1.8V. During this time, the inputs
and outputs are connected to an auxiliary amplifier that
has an input offset of 5mV (typ). As soon as the autotrimming is completed, the inputs and outputs switch
from the auxiliary amplifier to the calibrated amplifier.
The calibration settings hold until the supply voltage
drops below an internal threshold of 1.4V. This could be
used to recalibrate the amplifier. The supply current of
the part increases to about 2.5mA during the power-up
autotrim period. Use good supply decoupling with low
ESR capacitors.
Active Filters
The MAX9622 is ideal for a wide variety of active filter
circuits that make use of their wide output voltage swings
and large bandwidth capabilities. The Typical Application
Circuit shows a multiple feedback active filter circuit
example with a 100kHz corner frequency. At low frequencies, the amplifier behaves like a simple low-distortion
inverting amplifier gain = -1, while its high bandwidth
gives excellent stopband attenuation above its corner
frequency. See the Typical Application Circuit.
Input Differential Voltage Protection
During normal op-amp operation, the inverting and noninverting inputs of the MAX9622 are at essentially the
same voltage. However, either due to fast input voltage
transients or due to loss of negative feedback, these pins
can be forced to different voltages. Internal back-to-back
diodes and series resistors protect input-stage transistors from large input differential voltages (see Figure 2).
IN+ and IN- can survive any voltage between the powersupply rails.
This op amp has been designed to exhibit no phase
inversion to overdriven inputs.
5V
V
CC
1.8V
0V
2V
V
OUT
0V
Figure 1. Autotrim Timing Diagram
AUXILIARY AMPLIFIER ACTIVE
4ms
100I
100I
CALIBRATED
AMPLIFIER
ACTIVE
Figure 2. Input Protection Circuit
8 ______________________________________________________________________________________
Precision, High-Bandwidth Op Amp
Package Information
For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the
package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
PACKAGE TYPE PACKAGE CODE OUTLINE NO. LAND PATTERN NO.
5 SC70 X5+1
21-0076 90-0188
SC70, 5L.EPS
MAX9622
PACKAGE OUTLINE, 5L SC70
21-0076
_______________________________________________________________________________________ 9
1
E
1
Precision, High-Bandwidth Op Amp
Revision History
REVISION
NUMBER
0 9/10 Initial release —
REVISION
DATE
MAX9622
DESCRIPTION
PAGES
CHANGED
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied.
Maxim reserves the right to change the circuitry and specifications without notice at any time.
10 Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
©
2010 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.
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