CAT5401 Datasheet, PDF (4/17 Pages) ON Semiconductor – Quad Digitally Programmable Potentiometers (DPP™) with 64 Taps and SPI Interface

CAT5401
ABSOLUTE MAXIMUM RATINGS*
Temperature Under Bias .................. -55°C to +125°C
Storage Temperature ........................ -65°C to +150°C
Voltage on any Pin with
Respect to V_SS(1) ................... -2.0V to +V_CC +2.0V
V_CC with Respect to Ground ................ -2.0V to +7.0V
Package Power Dissipation
Capability (T_A = 25°C) ................................... 1.0W
Lead Soldering Temperature (10 secs) ............ 300°C
*COMMENT
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.
Recommended Operating Conditions:
V_CC = +2.5V to +6.0V
Temperature
Min
Max
Industrial
-40°C
85°C
Wiper Current .................................................. +12mA
Notes:
(1) 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.
(2) Latch-up protection is provided for stresses up to 100 mA on address and data pins from –1V to V_CC +1V.
POTENTIOMETER CHARACTERISTICS
Over recommended operating conditions unless otherwise stated.
Symbol
Parameter
RPOT
Potentiometer Resistance (-00)
RPOT
Potentiometer Resistance (-50)
RPOT
Potentiometer Resistance (-10)
RPOT
Potentiometer Resistance (-2.5)
Potentiometer Resistance Tolerance
RPOT Matching
Power Rating
IW
Wiper Current
RW
Wiper Resistance
RW
Wiper Resistance
VTERM
Voltage on any RH or RL Pin
VN
Noise
Resolution
Absolute Linearity ⁽²⁾
Relative Linearity ⁽³⁾
TCRPOT
Temperature Coefficient of RPOT
TCRATIO
Ratiometric Temp. Coefficient
CH/CL/CW
Potentiometer Capacitances
fc
Frequency Response
Test Conditions
25°C, each pot
IW = +3mA @ VCC =3V
IW = +3mA @ VCC = 5V
VSS = 0V
(1)
(1)
Rw(n)(actual)-R(n)(expected)(5)
Rw(n+1)-[Rw(n)+LSB]⁽⁵⁾
(1)
(1)
(1)
RPOT = 50kΩ
Min
GND
Typ
100
50
10
2.5
80
TBD
1.6
+300
10/10/25
0.4
Max
+20
1
50
+6
300
150
VCC
+1
+0.2
20
Units
kΩ
kΩ
kΩ
kΩ
%
%
mW
mA
Ω
Ω
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
Document No. 2010, Rev. F
4