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| X9421 Datasheet, PDF (13/21 Pages) Xicor Inc. – Single Digitally Controlled (XDCP) Potentiometer | |||
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X9421
ABSOLUTE MAXIMUM RATINGS
Temperature under bias. . . . . . . . . . . . .-65°C to +135°C
Storage temperature . . . . . . . . . . . . . . . -65°C to +150°C
Voltage on SCK any address input
with respect to VSS. . . . . . . . . . . . . . . . . .-1V to +7V
âV = | (VH - VL) | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V
Lead temperature (soldering, 10 seconds) . . . . . . 300°C
IW (10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . .±6mA
Any VH/RH, VL/RL, VW/RW . . . . . . . . . . . VSS to VCC
COMMENT
Stresses above those listed under âAbsolute Maximum
Ratingsâ may cause permanent damage to the device.
This is a stress rating only; functional operation of the
device (at these or any other conditions above those
listed in the operational sections of this specification)
is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device
reliability.
RECOMMENDED OPERATING CONDITIONS
Temp
Commercial
Industrial
Min.
0°C
-40°C
Max.
+70°C
+85°C
Device
X9421
X9421-2.7
Supply Voltage (VCC) Limits
5V ± 10%
2.7V to 5.5V
ANALOG CHARACTERISTICS (Over recommended operating conditions unless otherwise stated.)
Symbol
IW
RW
Parameter
End to End Resistance Tolerance
Power Rating
Wiper Current
Wiper Resistance
VTERM
CH/CL/CW
IAL
Voltage on any VH/RH, VL/RL, VW/RW
Noise
Resolution(4)
Absolute Linearity(1)
Relative Linearity(2)
Temperature Coefficient of RTOTAL
Ratiometric Temperature
Coefficient
Potentiometer Capacitances
Rh, RI, Rw leakage current
Min.
Limits
Typ. Max.
±20
50
±3
150 250
Units
%
mW
mA
â¦
400 1000 â¦
VSS
-120
1.6
±300
VCC
±1
±0.2
±20
V
dBV
%
MI(3)
MI(3)
ppm/°C
ppm/°C
10/10/25
pF
0.1
10
µA
Test Conditions
25°C, each pot
Wiper Current = ± 1mA,
VCC = 5V
Wiper Current = ± 1mA,
VCC = 3V
VSS = 0V
Ref: 1kHz
See Note 5
Vw(n)(actual) - Vw(n)(expected)
Vw(n + 1) - [Vw(n) + MI]
See Note 5
See Note 5
See Circuit #3
Vin = Vss to Vcc. Device is in
stand-by mode.
Notes: (1)
(2)
(3)
(4)
Absolute Linearity is utilized to determine actual wiper voltage versus expected voltage as determined by wiper position when used as
a potentiometer.
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.
MI = RTOT/63 or (VH - VL)/63, single pot
Typical = Individual array resolution.
13
FN8196.1
September 23, 2005
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