MAX9923F(2009) Ver la hoja de datos (PDF) - Maxim Integrated
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MAX9923F Datasheet PDF : 14 Pages
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Ultra-Precision, High-Side
Current-Sense Amplifiers
ABSOLUTE MAXIMUM RATINGS
RSB, RS+, RS- to GND...........................................-0.3V to +30V
VDD to GND ..............................................................-0.3V to +6V
OUT, REF, FB, SHDN
to GND .................-0.3V to the lower of (VDD + 0.3V) and +6V
OUT Short Circuit to VDD or GND ..............................Continuous
Differential Voltage (VRS+ - VRS-), (VRSB - VRS+),
(VRSB - VRS-) ...................................................................±5.5V
Current into Any Pin..........................................................±20mA
Continuous Power Dissipation (TA = +70°C)
10-Pin µMAX (derate 4.5mW/°C above +70°C) ...........362mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
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
(VRSB = VRS+ = VRS- = +12V, VDD = +3.3V, VGND = 0, VREF = VDD/2 for bidirectional, VREF = 0 for unidirectional, VSENSE = VRS+ - VRS- = 0,
MAX9922 is set for AV =100V/V (R1 = 1kΩ, R2 = 99kΩ), SHDN = VDD, TA = -40°C to +85°C, unless otherwise noted. Typical values are at
TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
DC CHARACTERISTICS
MAX9922 (AV = 100), VSENSE = 0,
VREF = VDD/2, -40°C ≤ TA ≤ +85°C
±0.1 ±10
Input Offset Voltage
(Notes 2, 3)
MAX9923T, VSENSE = 0, VREF = VDD/2,
-40°C ≤ TA ≤ +85°C
VOS
MAX9923H, VSENSE = 0, VREF = VDD/2
-40°C ≤ TA ≤ +85°C
±0.2 ±25
µV
±0.2 ±20
MAX9923F, VSENSE = 0, VREF = VDD/2,
-40°C ≤ TA ≤ +85°C
±0.1 ±10
MAX9922 (AV = 100V/V), VSENSE = 0,
VREF = VDD/2, -40°C ≤ TA ≤ +85°C
±0.05
Input Offset Voltage
Temperature Drift (Notes 2, 4)
Input Common-Mode Range
Input Common-Mode Rejection
Gain
TCVOS
VCMR
CMRR
AV
MAX9923T, VSENSE = 0, VREF = VDD/2,
-40°C ≤ TA ≤ +85°C
MAX9923H, VSENSE = 0, VREF = VDD/2,
-40°C ≤ TA ≤ +85°C
MAX9923F, VSENSE = 0, VREF = VDD/2,
-40°C ≤ TA ≤ +85°C
Guaranteed by CMRR
1.9V ≤ VRS+ ≤ 28V, -40°C ≤ TA ≤ +85°C
(Note 2)
MAX9922
MAX9923T
MAX9923H
MAX9923F
±0.20
±0.10
µV/°C
±0.05
1.90
28.00
V
121
140
dB
Adj
25
V/V
100
250
2 _______________________________________________________________________________________
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