MAX9643(2011) View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX9643 Datasheet PDF : 12 Pages
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MAX9643
60V High-Speed Precision Current-Sense Amplifier
ELECTRICAL CHARACTERISTICS* (continued)
(VCC = 5V, VRS+ = VRS- = 12V, TA = -40NC to +125NC, unless otherwise noted.) (Note 3)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Voltage Gain (Note 4)
MAX9643T
MAX9643U
2.5
V/V
10
Voltage Gain Error (Note 4)
AC CHARACTERISTICS
GE
TA = +25NC
-40NC < TA < +125NC
0.06 0.5
%
0.6
Signal Bandwidth
BW
VSENSE = 25mVDC + 2mVP-P, MAX9643T
15
VSENSE = 25mVDC + 2mVP-P, MAX9643U
10
Slew Rate
SR
VOUT = 10mV to 110mV
12
Delay from Output Saturation to VOL
VSENSE = 0 to 20mV
100
MHz
V/Fs
ns
Delay from Input Saturation and
Delay from Output Saturation to VOH
VSENSE = 10V to 10mV
1
Fs
OUTPUT CHARACTERISTICS
Output Short-Circuit Current
ISC
3.39
mA
IOUT = 100FA sink, TA = +25NC
0.2
1
Output-Voltage Low (MAX9643T)
(Note 5)
VOL
IOUT = 100FA sink, -40NC < TA < +125NC
IOUT = 1mA sink, TA = +25NC
1
mV
0.6
10
IOUT = 1mA sink, -40NC < TA < +125NC
10
IOUT = 100FA sink, TA = +25NC
0.5
3
Output-Voltage Low (MAX9643U)
(Note 5)
VOL
IOUT = 100FA sink, -40NC < TA < +125NC
IOUT = 1mA sink, TA = +25NC
3
mV
0.6
10
IOUT = 1mA sink, -40NC < TA < +125NC
10
Output-Voltage High (Note 7)
VOH
IOUT = 1mA source, VCC < 4.5V
IOUT = 1mA source, VCC R 4.5V
VCC - 1.3
3.2
V
2.3
Capacitive Drive Capability
CL
RLOAD = Open, no sustained oscillation
30
pF
POWER-SUPPLY CHARACTERISTICS
Power Supply
Power-Supply Rejection Ratio
(Note 5)
Quiescent Supply Current
Charge-Pump Current
VCC
PSRR
ICC
IEE
Guaranteed by PSRR
VCC = 2.7V to 36V, VSENSE = 10mV,
TA = +25NC
-40NC < TA < +125NC
TA = +25NC
-40NC < TA < +125NC
DVEE = 500mV
2.7
36
V
107 125
dB
100
1000 1400
FA
1600
4
mA
Note 3: All devices are 100% production tested at TA = +25NC. Temperature limits are guaranteed by design and/or characterization.
Note 4: Gain and offset voltage are calculated based on two point measurements: VSENSE1 = 10mV and VSENSE2 = 100mV.
Note 5: VOS, VOL, CMRR, and PSRR are measured with the charge pump off.
Note 6: Guaranteed by design and/or characterization.
Note 7: The maximum VSENSE of the MAX9643T is 400mV. With the gain = 2.5V/V, the output swing high is not applicable to the
MAX9643T.
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