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CAT5409 Datasheet(PDF) 3 Page - Catalyst Semiconductor

Part # CAT5409
Description  Quad Digitally Programmable Potentiometers (DPPTM) with 64 Taps and 2-wire Interface
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Manufacturer  CATALYST [Catalyst Semiconductor]
Direct Link  http://www.catalyst-semiconductor.com
Logo CATALYST - Catalyst Semiconductor

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CAT5409
Document No. 2010, Rev. I
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 VSS(1)(2) ................ -2.0V to +VCC +2.0V
VCC with Respect to Ground ................ -2.0V to +7.0V
Package Power Dissipation
Capability (TA = 25
°C) ................................... 1.0W
Lead Soldering Temperature (10 secs) ............ 300
°C
Wiper Current .................................................. +12mA
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 = RTOT / 63 or (RH - RL) / 63, single pot
(5) n = 0, 1, 2, ..., 63
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 VCC +0.5V, which may overshoot to VCC +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 VCC +1V.
*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:
VCC = +2.5V to +6.0V
Temperature
Min
Max
Industrial
-40
°C85°C
POTENTIOMETER CHARACTERISTICS
Over recommended operating conditions unless otherwise stated.
Symbol
Parameter
Test Conditions
Min
Typ
Max
Units
RPOT
Potentiometer Resistance (-00
)
100
k
RPOT
Potentiometer Resistance (-50
)
50
k
RPOT
Potentiometer Resistance (-10
)
10
k
RPOT
Potentiometer Resistance (-2.5
)
2.5
k
Potentiometer Resistance Tolerance
+20
%
RPOT Matching
1
%
Power Rating
25
°C, each pot
50
mW
IW
Wiper Current
+6
mA
RW
Wiper Resistance
IW = +3mA @ VCC =3V
300
RW
Wiper Resistance
IW = +3mA @ VCC = 5V
80
150
VTERM
Voltage on any RH or RL Pin
VSS = 0V
GND
VCC
V
VN
Noise
(1)
TBD
nV/ Hz
Resolution
1.6
%
Absolute Linearity (2)
Rw(n)(actual)-R(n)(expected)(5)
+1
LSB (4)
Relative Linearity (3)
Rw(n+1)-[Rw(n)+LSB](5)
+0.2
LSB (4)
TCRPOT
Temperature Coefficient of RPOT
(1)
+300
ppm/
°C
TCRATIO
Ratiometric Temp. Coefficient
(1)
20
ppm/
°C
CH/CL/CW
Potentiometer Capacitances
(1)
10/10/25
pF
fc
Frequency Response
RPOT = 50k
(1)
0.4
MHz


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