CAT5411_07 Datasheet, PDF (4/16 Pages) Catalyst Semiconductor – Dual Digitally Programmable Potentiometers (DPP TM) with 64 Taps and SPI Interface

CAT5411
ABSOLUTE MAXIMUM RATINGS⁽¹⁾
Parameters
Ratings
Temperature Under Bias
Storage Temperature
RVoltage _{to any Pins with}
Respect to V_SS ^{(2) (3)}
V_CC with Respect to GND
Package Power Dissipa-
tion Capability (T_A = 25°C)
Lead Soldering
Temperature (10s)
-55 to +125
-65 to +150
-2.0 to V_CC
+2.0
-2.0 to +7.0
1.0
300
Wiper Current
±12
Units
ºC
ºC
V
V
W
ºC
mA
POTENTIOMETER CHARACTERISTICS
RECOMMENDED OPERATING CONDITIONS
Parameters
V_CC
Industrial Temperature
Ratings
+2.5 to 6.0
-40 to +85
Units
V
ºC
Notes:
(1) Stresses above 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 outside of those listed in the
operational sections of this specification is not implied.
Exposure to any absolute maximum rating for extended
periods may affect device performance and reliability.
(2) The minimum DC input voltage is –0.5V. During transitions,
inputs may undershoot to –2.0V for periods of less than 20 ns.
Maximum DC voltage on output pins is V_CC +0.5V, which may
overshoot to V_CC +2.0V for periods of less than 20 ns.
(3) Latch-up protection is provided for stresses up to 100 mA on
address and data pins from –1V to V_CC +1V.
Over recommended operating conditions unless otherwise stated.
Symbol Parameter
Test Conditions
Min
Typ Max Units
R_POT
R_POT
Potentiometer Resistance (-00)
Potentiometer Resistance (-50)
100
kΩ
50
kΩ
R_POT
R_POT
Potentiometer Resistance (-10)
Potentiometer Resistance (-2.5)
10
kΩ
2.5
kΩ
Potentiometer Resistance
Tolerance
+20
%
R_POT Matching
Power Rating
25°C, each pot
1
%
50
mW
I_W
Wiper Current
+6
mA
R_W
Wiper Resistance
R_W
Wiper Resistance
I_W = +3mA @ V_CC = 3V
I_W = +3mA @ V_CC = 5V
300
Ω
80
150
Ω
V_TERM
V_N
TC_RPOT
TC_RATIO
C_H/C_L/C_W
fc
Voltage on any R_H or R_L Pin
Noise
Resolution
Absolute Linearity ⁽²⁾
Relative Linearity ⁽³⁾
Temperature Coefficient of R_POT
Ratiometric Temp. Coefficient
Potentiometer Capacitances
Frequency Response
V_SS = 0V
(1)
R_W(n)(actual)-R_{(n)(expected)(5)}
R_W(n+1)-[R_W(n)+LSB]⁽⁵⁾
(1)
(1)
(1)
R_POT = 50kΩ⁽¹⁾
GND
V_CC
1.6
+300
10/10/25
0.4
+1
+0.2
20
V
nV/√Hz
%
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 utilitzed 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. It is a measure of the error in step size.
(4) LSB = R_TOT / 63 or (R_H - R_L) / 63, single pot
(5) n = 0, 1, 2, ..., 63
Doc. No. 2114 Rev. H
4
© 2007 Catalyst Semiconductor, Inc.
Characteristics subject to change without notice