Datasheet

MAX5490
100k Ω Precision-Matched Resistor-Divider in
SOT23
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(T
A
= -55°C to +125°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
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.
Voltage Between P1 and P2.................................................100V
Maximum Current into Any Pin ......................................±1.00mA
Continuous Power Dissipation (T
A
= +70°C)
3-Pin SOT23 (derate 7.1mW/°C above +70°C).........571.4mW
3-Pin SOT23 (θ
J-A
) .....................................................141°C/W
Operating Temperature Range .........................-55°C to +125°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MAX5490_A, T
A
= +25°C ±0.035
MAX5490_B, T
A
= +25°C ±0.05
Initial Resistor Ratio Error (Note 2)
MAX5490_C, T
A
= +25°C ±0.1
%
1:1 ≤ ratio ≤ 10:1 1 2
Resistance-Ratio Temperature
Coefficient (Note 3)
10:1 ≤ ratio ≤ 25:1 2 4
ppm/°C
Absolute Temperature Coefficient
of Resistance
TCR (Note 4) 35 ppm/°C
Voltage Coefficient of Resistance VCR (Note 5) 0.1 ppm/V
End-to-End Resistance (R
1
+ R
2
)T
A
= +25°C 95 100 105 kΩ
Continuous Working Voltage
Between P1 and P2
V
P1-P2
-80 +80 V
Continuous Current I
R1
, I
R2
840 µA
P1, P2, P3 Capacitance 2pF
Maximum Power Rating 67.2 mW
Resistance Ratio Long-Term
Stability
2000 hours at +70°C ±0.03 %
-3dB Bandwidth f
3dB
1:1 ratio (Note 6) 3 MHz
Thermal Noise 45 µV
RMS
Current Noise
In accordance with MIL-STD-2020
method 30B
-25 dB
Note 1: The MAX5490 is 100% production tested at T
A
= +25°C. Specifications over -55°C to +125°C are guaranteed by design
and characterization.
Note 2: Testing conditions: T
A
= +25°C, V
P1-P2
= 10V and 80V.
Note 3: Resistance-ratio temperature coefficient is defined as
For ratios from 25:1 to 100:1, contact factory.
Note 4: Absolute TCR is defined as
∆
∆
R
R
R
R
T
1
2
1
2
⎛
⎝
⎜
⎞
⎠
⎟
×
∆
∆
RR
RR T
12
12
+
()
+
()
×
and is guaranteed by design, not production tested.
and is tested at 10V and 80V.