Instruction Manual
MAX9943/MAX9944
High-Voltage, Precision, Low-Power Op Amps
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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.
Supply Voltage (V
CC
to V
EE
) ..................................-0.3V to +40V
All Other Pins (Note 1) .....................(V
EE
- 0.3V) to (V
CC
+ 0.3V)
OUT Short-Circuit Current Duration
8-Pin µMAX (V
CC
- V
EE
≤ 20V)...............................................3s
8-Pin µMAX (V
CC
- V
EE
> 20V) ................................Momentary
6-Pin TDFN (V
CC
- V
EE
≤ 20V) .............................................60s
6-Pin TDFN (V
CC
- V
EE
> 20V)...............................................2s
8-Pin SO (V
CC
- V
EE
≤ 20V) .................................................60s
8-Pin SO (V
CC
- V
EE
> 20V)...................................................2s
8-Pin TDFN (V
CC
- V
EE
≤ 20V) .............................................60s
8-Pin TDFN (V
CC
- V
EE
> 20V)...............................................2s
Continuous Input Current (Any Pins) ................................±20mA
Thermal Limits (Note 2)
Multiple Layer PCB
Continuous Power Dissipation (T
A
= +70°C)
8-Pin µMAX (derate 4.8mW/°C above +70°C) ...........387.8mW
θ
JA
.........................................................................206.3°C/W
θ
JC
..............................................................................42°C/W
6-Pin TDFN-EP (derate 23.8mW/°C above +70°C)..1904.8mW
θ
JA
..............................................................................42°C/W
θ
JC
................................................................................9°C/W
8-Pin SO (derate 7.6mW/°C above +70°C)...................606.1W
θ
JA
............................................................................132°C/W
θ
JC
..............................................................................38°C/W
8-Pin TDFN-EP (derate 24.4mW/°C above +70°C)..1951.2mW
θ
JA
..............................................................................41°C/W
θ
JC
................................................................................8°C/W
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DC CHARACTERISTICS
Operating Supply Voltage Range V
SUPPLY
Guaranteed by PSRR test ±3 ±19 V
Quiescent Supply Current per
Amplifier
I
CC
550 950 µA
Power-Supply Rejection Ratio PSRR V
S
= ±3V to ±19V 105 130 dB
T
A
= +25°C 20 100
Input Offset Voltage V
OS
T
A
= -40°C to +125°C 240
µV
Input Offset Voltage Drift TCV
OS
0.4 µV/°C
V
EE
+ 0.3V ≤ V
CM
≤ V
CC
- 1.8V 4 20
Input Bias Current I
BIAS
V
EE
≤ V
CM
≤ V
CC
- 1.8V 90
nA
Input Offset Current I
OS
V
EE
≤ V
CM
≤ V
CC
- 1.8V 1 10 nA
Input Voltage Range V
IN+
, V
IN-
Guaranteed by CMRR test,
T
A
= -40°C to +125°C
V
EE
V
CC
-
1.8
V
V
EE
+ 0.3V ≤ V
CM
≤ V
CC
- 1.8V 105 125
Common-Mode Rejection Ratio CMRR
V
EE
≤ V
CM
≤ V
CC
- 1.8V 105
dB
ELECTRICAL CHARACTERISTICS
(V
CC
= 15V, V
EE
= -15V, V
CM
= 0, R
L
= 10kΩ to GND, GND = 0, T
A
= -40°C to +125°C. Typical values are at T
A
= +25°C, unless oth-
erwise noted.) (Note 3)
Note 1: Operation is limited by thermal limits.
Note 2: 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
.