CAT5133_08 Datasheet, PDF (4/10 Pages) Catalyst Semiconductor – 16 Volt Digitally Programmable Potentiometer (DPPTM) with 128 Taps and an Increment Decrement Interface

CAT5133
RECOMMENDED OPERATING CONDITIONS
V_CC = +2.7V to +5.5V
V+ = +8.0V to +16.0V
Operating Temperature Range: -40°C to +85°C
POTENTIOMETER CHARACTERISTICS
(Over recommended operating conditions unless otherwise stated.)
Symbol Parameter
Test Conditions
R_POT
R_POT
R_POT
Potentiometer Resistance (10kΩ)
Potentiometer Resistance (50kΩ)⁽⁷⁾
Potentiometer Resistance (100kΩ)⁽⁷⁾
R_TOL Potentiometer Resistance Tolerance
Power Rating
25ºC
I_W Wiper Current
R_W Wiper Resistance
I_W = +1mA @ V+ = 12V
V_TERM Voltage on R_W , R_H or R_L
I_W = +1mA @ V+ = 8V
GND = 0V; V+ = 8V to 16V
Min
GND
Limits
Typ Max
10
50
100
±20
50
±3
70
150
110
200
V+
Units
kΩ
kΩ
kΩ
%
mW
mA
Ω
Ω
V
RES
A_LIN
R_LIN
Resolution
Absolute Linearity⁽²⁾
Relative Linearity⁽³⁾
TC_RPOT Temperature Coefficient of R_POT
TC_Ratio Ratiometric Temperature Coefficient
C_H/C_L/C _{Potentiometer Capacitances}
fc Frequency Response
V_W(n)(actual)
-
V (5),
W(n)(expected)
(6)
V_W(n+1) - [V_W(n) +LSB]^{(5), (6)}
(1)
(1)
(1)
R_POT = 50kΩ
0.78
±300
10/10/25
0.4
±1
±0.5
30
%
LSB⁽⁴⁾
LSB⁽⁴⁾
ppm/°C
ppm/°C
pF
MHz
Notes:
(1) This parameter is tested initially and after a design or process change that affects the parameter.
(2) Absolute linearity is utilized to determine actual wiper voltage versus expected voltage as determined by wiper position when used as a
potentiometer.
(3) Relative linearity is utilized to determine the actual change in voltage between two successive tap positions when used as a
potentiometer.
(4) LSB = (R_HM - R_LM)/127; where R_HM and R_LM are the highest and lowest measured values on the wiper terminal.
(5) n = 1, 2, ..., 127.
(6) V⁺ @ R_H; 0V @ R_L; V_W measured @ R_W, with no load.
(7) Contact factory for availability on this version of the CAT5133.
Doc. No. MD-2125 Rev. C
4
© Catalyst Semiconductor, Inc.
Characteristics subject to change without notice