Lead Temperature (10s, soldering)...................................+300°C
Soldering Temperature (reflow)........................................+260°C
Note 1:
Voltages below -3.5V are allowed, as long as the input current is limited to 5mA by an external resistor.
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.
Package Thermal Characteristics
(Note 2)
TDFN
Junction-to-Ambient Thermal Resistance (θ
JA
)...........60°C/W
Junction-to-Case Thermal Resistance (θ
JC
)................11°C/W
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.maximintegrated.com/thermal-tutorial.
Electrical Characteristics
(V
CC
= 5V, V
RS+
= V
RS-
= 12V, T
A
= -40°C to +125°C, unless otherwise noted.) (Note 3)
PARAMETER
DC CHARACTERISTICS
Input Common-Mode Voltage
Range
V
CC
≥
5V, guaranteed by CMRR test,
V
SENSE
≤ 100mV
V
CC
< 5V, guaranteed by CMRR test,
V
SENSE
≤
100mV
T
A
= +25°C
Input Offset Voltage (Notes 4, 5)
Common-Mode Rejection Ratio
(Note 5)
CMRR vs. Frequency (Note 5)
Input Bias Current
Input Bias Current, V
CC
= 0V,
V
RS+
= V
RS-
= 60V
Input Offset Current (Note 6)
V
OS
-40°C < T
A
< +125°C
+10°C < T
A
< +85°C
CMRR
-1.5V ≤ V
CM
≤ 60V, T
A
= +25°C
-1.5V
≤
V
CM
≤
60V, -40°C
≤
T
A
≤
+125°C
T
A
= +25°C
-40°C < T
A
< +125°C
120
110
90
35
60
60
25
T
A
= +25°C
I
RS+
- I
RS-
+10°C < T
A
< +85°C
-40°C < T
A
< +125°C
0.02
0.65
0.65
0.8
µA
130
-1.5
3.5 -
V
CC
10
+60
V
60
130
650
400
dB
dB
µA
µA
µV
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
V
RS+
, V
RS-
AC CMRR f = 100kHz
I
RS+
, I
RS-
I
RS+
, I
RS
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Maxim Integrated
│
2
MAX9643
60V High-Speed Precision Current-Sense Amplifier
Electrical Characteristics* (continued)
(V
CC
= 5V, V
RS+
= V
RS-
= 12V, T
A
= -40°C to +125°C, unless otherwise noted.) (Note 3)
PARAMETER
Maximum Sense Voltage Before
Input Saturation
Voltage Gain (Note 4)
Voltage Gain Error (Note 4)
AC CHARACTERISTICS
Signal Bandwidth
Slew Rate
Delay from Output Saturation to V
OL
Delay from Input Saturation and
Delay from Output Saturation to V
OH
OUTPUT CHARACTERISTICS
Output Short-Circuit Current
I
SC
I
OUT
= 100µA sink, T
A
= +25°C
Output-Voltage Low (MAX9643T)
(Note 5)
I
OUT
= 100µA sink, -40°C < T
A
< +125°C
V
OL
I
OUT
= 100µA sink, +10°C < T
A
< +85°C
I
OUT
= 1mA sink, T
A
= +25°C
I
OUT
= 1mA sink, -40°C < T
A
< +125°C
I
OUT
= 100µA sink, T
A
= +25°C
Output-Voltage Low (MAX9643U)
(Note 5)
I
OUT
= 100µA sink, -40°C < T
A
< +125°C
V
OL
I
OUT
= 100µA sink, +10°C < T
A
< +85°C
I
OUT
= 1mA sink, T
A
= +25°C
I
OUT
= 1mA sink, -40°C < T
A
< +125°C
Output-Voltage High (Note 7)
Capacitive Drive Capability
V
OH
CL
I
OUT
= 1mA source, V
CC
< 4.5V
I
OUT
= 1mA source, V
CC
≥
4.5V
R
LOAD
= Open, no sustained oscillation
V
CC
- 1.3
3.2
30
0.6
0.5
0.6
3.39
0.2
1
2.2
1.2
10
10
4
8.8
4.8
10
10
V
pF
mV
mV
mA
BW
SR
V
SENSE
= 25mV
DC
+ 2mV
P-P
, MAX9643T
V
SENSE
= 25mV
DC
+ 2mV
P-P
, MAX9643U
V
OUT
= 10mV to 110mV
V
SENSE
= 0 to 20mV
V
SENSE
= 10V to 10mV
15
10
12
100
1
MHz
V/µs
ns
µs
GE
SYMBOL
V
CM
< 2V
FS
V
CM
≥
2V
MAX9643T
MAX9643U
T
A
= +25°C
-40°C < T
A
< +125°C
MAX9643T
MAX9643U
CONDITIONS
MIN
100
400
300
2.5
10
0.06
0.5
0.6
V/V
%
mV
TYP
MAX
UNITS
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Maxim Integrated
│
3
MAX9643
60V High-Speed Precision Current-Sense Amplifier
Electrical Characteristics* (continued)
(V
CC
= 5V, V
RS+
= V
RS-
= 12V, T
A
= -40°C to +125°C, unless otherwise noted.) (Note 3)
PARAMETER
Power Supply
Power-Supply Rejection Ratio
(Note 5)
Quiescent Supply Current
Charge-Pump Current
Note
Note
Note
Note
Note
3:
4:
5:
6:
7:
SYMBOL
V
CC
PSRR
CONDITIONS
Guaranteed by PSRR
V
CC
= 2.7V to 36V, V
SENSE
= 10mV,
T
A
= +25°C
-40°C < T
A
< +125°C
I
CC
I
EE
T
A
= +25°C
-40°C < T
A
< +125°C
DV
EE
= 500mV
4
MIN
2.7
107
100
1000
1400
1600
µA
mA
125
TYP
MAX
36
UNITS
V
dB
POWER-SUPPLY CHARACTERISTICS
All devices are 100% production tested at T
A
= +25°C. Temperature limits are guaranteed by design and/or characterization.
Gain and offset voltage are calculated based on two point measurements: V
SENSE1
= 10mV and V
SENSE2
= 100mV.
V
OS
, V
OL
, CMRR, and PSRR are measured with the charge pump off.
Guaranteed by design and/or characterization.
The maximum V
SENSE
of the MAX9643T is 400mV. With the gain = 2.5V/V, the output swing high is not applicable to the
MAX9643T.
www.maximintegrated.com
Maxim Integrated
│
4
MAX9643
60V High-Speed Precision Current-Sense Amplifier
Typical Operating Characteristics
(V
CC
= 5V, V
RS+
= V
RS-
= 12V, T
A
= -40°C to +125°C, unless otherwise noted. All devices are 100% production tested at T
A
= +25°C.
Temperature limits are guaranteed by design and/or characterization.)
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