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Precision-Matched Resistor-Divider in SOT23
ABSOLUTE MAXIMUM RATINGS
Voltage Between P1 and P2...................................................50V
Continuous Current into Any Pin....................................±1.75mA
Continuous Power Dissipation (T A = +70°C)
3-Pin SOT23 (derate 7.1mW/°C above +70°C).........571.4mW
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.
DC ELECTRICAL CHARACTERISTICS
(T A = -40°C to +85°C, unless otherwise noted. Typical values are at T A = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX5491_A, T A = +25°C
±0.035
Initial Resistor Ratio Error (Note 2)
Resistance-Ratio Temperature
Coefficient (Note 3)
MAX5491_B, T A = +25°C
MAX5491_C, T A = +25°C
1:1 ≤ ratio ≤ 3.2:1
3.2:1 < ratio ≤ 10:1
10:1 < ratio ≤ 30:1
2
4
5.5
±0.05
±0.1
%
ppm/°C
Absolute Temperature Coefficient
of Resistance
Voltage Coefficient of Resistance
TCR
VCR
(Note 4)
(Note 5)
35
0.1
ppm/°C
ppm/V
End-to-End Resistance (R 1 + R 2 )
Continuous Current
I R1 , I R2
28.5
30
31.5
±1.75
k ?
mA
Continuous Working Voltage
Between P1 and P2
Power Rating
Pin Capacitance
Resistance Ratio Long-Term
Stability
V P1-P2
2000hr at +70°C
0
2
±0.03
50
87.5
V
mW
pF
%
Note 1: The MAX5491 is 100% production tested at T A = +25°C. Specifications over -40°C to +85°C are guaranteed by design.
Note 2: Testing conditions: T A = +25°C, V P1-P2 = 9V and 50V.
? ? 1 ?
Note 3: Resistance-ratio temperature coefficient is defined as
? R ?
? R 2 ?
R 1
R 2
× ? T
Note 4: Absolute TCR is defined as
and is tested at 9V and 50V.
? ( R 1 + R 2 )
( R 1 + R 2 ) × ? T
? ? 1 ?
Note 5: Resistance-ratio voltage coefficient is defined as
? R ?
? R 2 ?
R 1
R 2
× ? V
2
_______________________________________________________________________________________
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