
CAT5133
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4
Recommended Operating Conditions
VCC = +2.7 V to +5.5 V
V+ = +8.0 V to +16.0 V
Operating Temperature Range: 40C to +85C
Table 5. POTENTIOMETER CHARACTERISTICS (Over recommended operating conditions unless otherwise stated.)
Symbol
Parameter
Test Conditions
Limits
Units
Min
Typ
Max
RPOT
Potentiometer Resistance (10 kW)
10
kW
RPOT
Potentiometer Resistance (50 kW)
50
kW
RPOT
Potentiometer Resistance (100 kW)
100
kW
RTOL
Potentiometer Resistance Tolerance
20
%
Power Rating
25C
50
mW
IW
Wiper Current
3
mA
RW
Wiper Resistance
IW = +1 mA @ V+ = 12 V
70
150
W
IW = +1 mA @ V+ = 8 V
110
200
VTERM
Voltage on RW, RH or RL
GND = 0 V; V+ = 8 V to 16 V
GND
V+
V
RES
Resolution
0.78
%
ALIN
Absolute Linearity (Note
7)VW(n)(actual) VW(n)(expected)
1
LSB
RLIN
Relative Linearity (Note
8)VW(n+1) [VW(n) +LSB]
0.5
LSB
TCRPOT
Temperature Coefficient of RPOT
300
ppm/C
TCRatio
Ratiometric Temperature Coefficient
30
ppm/C
CH/CL/CW
Potentiometer Capacitances
10/10/25
pF
fc
Frequency Response
RPOT = 50 kW
0.4
MHz
6. This parameter is tested initially and after a design or process change that affects the parameter.
7. Absolute linearity is utilized to determine actual wiper voltage versus expected voltage as determined by wiper position when used as a
potentiometer.
8. Relative linearity is utilized to determine the actual change in voltage between two successive tap positions when used as a potentiometer.
9. LSB = (RHM RLM)/127; where RHM and RLM are the highest and lowest measured values on the wiper terminal.
10.n = 1, 2, ..., 127.
11. V+ @ RH; 0 V @ RL; VW measured @ RW, with no load.
12.Contact factory for availability on this version of the CAT5133.