X9251 Datasheet, PDF (15/25 Pages) Xicor Inc. – Quad Digitally-Controlled (XDCP) Potentiometer

X9251
ABSOLUTE MAXIMUM RATINGS
Temperature under bias ....................–65°C to +135°C
Storage temperature .........................–65°C to +150°C
Voltage on SCK, any address input, V_CC
with respect to V_SS.................................. –1V to +7V
∆V = | (V_H–VL) | ................................................... 5.5V
Lead temperature (soldering, 10 seconds).........300°C
I_W (10 seconds) ................................................. ±6mA
RECOMMENDED OPERATING CONDITIONS
Temp
Commercial
Industrial
Min.
0°C
–40°C
Max.
+70°C
+85°C
COMMENT
Stresses above those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device.
This is a stress rating only; the 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.
Device
X9251
X9251-2.7
Supply Voltage (V_CC)⁽⁴⁾ Limits
5V ±10%
2.7V to 5.5V
ANALOG CHARACTERISTICS (Over recommended industrial operating conditions unless otherwise stated.)
Parameter
Limits
Symbol
R_TOTAL
R_TOTAL
I_W
R_W
End to End Resistance
End to End Resistance
End to End Resistance Tolerance
Power Rating
Wiper Current
Wiper Resistance
Min.
V_TERM
Voltage on any R_H or R_L Pin
V_SS
Noise
Resolution
Absolute Linearity ⁽¹⁾
-1
Typ.
100
50
-120
0.4
Max. Units
Test Conditions
kΩ T version
kΩ U version
±20
%
50 mW 25°C, each pot
±3
mA
300
Ω
I_W =
V(V_CC) _@
R_TOTAL
V_CC
=
3V
150
Ω
I_W =
V(V_CC) _@
R_TOTAL
V_CC
=
5V
V_CC
V V_SS = 0V
dBV/ Hz Ref: 1V
%
+1
MI⁽³⁾ R_w(n)(actual) – R_{w(n)(expected)}⁽⁵⁾
Relative Linearity ⁽²⁾
-0.6
+0.6 MI⁽³⁾ R_{w(n + 1)} – [R_{w(n) + MI}]⁽⁵⁾
Temperature Coefficient of R_TOTAL
Ratiometric Temp. Coefficient
-20
±300
ppm/°C
+20 ppm/°C
C_H/C_L/C_W Potentiometer Capacitances
10/10/25
pF See Macro model
Notes: (1) Absolute linearity is utilized to determine actual wiper voltage versus expected voltage as determined by wiper position when used
as a potentiometer.
(2) 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.
(3) MI = RTOT / 255 or (R_H – R_L) / 255, single pot
(4) During power up V_CC > V_H, V_L, and V_W.
(5) n = 0, 1, 2, …,255; m =0, 1, 2, …, 254.
REV 1.3.3 2/10/04
www.xicor.com
Characteristics subject to change without notice. 15 of 25