MAX5491 Maxim, MAX5491 Datasheet - Page 3

• Manufacturer Part Number: MAX5491
• Description: Precision-Matched Resistor-Divider in SOT23
• Manufacturer: Maxim

As shown in the Block Diagram, the MAX5491 consists
of two precision, low-ratio-drift resistors with an end-to-
end resistance of 30kΩ (R
of the divider. The maximum working voltage of the
MAX5491 is 50V. This device offers a wide range of
(V
P1-P2
PIN
1
2
3
= 10V, T
Precision-Matched Resistor-Divider in SOT23
-100
-200
-300
-400
400
300
200
100
0
-50
A
NORMALIZED RESISTOR-RATIO DRIFT
= +25°C, unless otherwise noted.)
NAME
-25
_______________________________________________________________________________________
P1
P2
P3
vs. TEMPERATURE
TEMPERATURE (°C)
Detailed Description
0
1
R
R
Midpoint Between R
25
1
2
+ R
Connection Terminal
Connection Terminal
50
2
). P3 is the center tap
V
RATIO = 1:1
P1-P2
75
= 10V
100
1
and R
2
Connection Terminals
resistance ratios (R
suited for precision operational amplifier gain/attenua-
tion control. The MAX5491 features a ±2kV ESD protec-
tion that enhances system robustness. A maximum
initial ratio accuracy of 0.035% and a low 2ppm/°C ratio
drift enhance system accuracy.
Typical Operating Characteristics
FUNCTION
-100
-200
-300
-400
400
300
200
100
0
-50
NORMALIZED RESISTOR-RATIO DRIFT
-25
1
/R
vs. TEMPERATURE
TEMPERATURE (°C)
2
0
) from 1:1 to 30:1 and is ideally
25
Pin Description
50
V
RATIO = 5:1
P1-P2
75
= 10V
100
3