X9271 Datasheet, PDF (13/23 Pages) Xicor Inc. – Single Digitally-Controlled (XDCP) Potentiometer

X9271
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 V_SS..................................–1V to +7V
∆V = |(V_H–V_L)|...................................................... 5.5V
Lead temperature (soldering, 10 seconds)........ 300°C
I_W (10 seconds).................................................. ±6mA
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.
RECOMMENDED OPERATING CONDITIONS
Temp
Commercial
Industrial
Min.
0°C
–40°C
Max.
+70°C
+85°C
Device
X9271
X9271-2.7
Supply Voltage (V_CC)⁽⁴⁾ Limits
5V ±10%
2.7V to 5.5V
ANALOG CHARACTERISTICS (Over recommended industrial operating conditions unless otherwise stated.)
Limits
Symbol
R_TOTAL
R_TOTAL
I_W
R_W
R_W
V_TERM
Parameter
End to End Resistance
End to End Resistance
End to End Resistance
Tolerance
Power Rating
Wiper Current
Wiper Resistance
Wiper Resistance
Voltage on any R_H or R_L Pin
Noise
Resolution
Absolute Linearity⁽¹⁾
Min.
V_SS
Typ.
100
50
-120
0.4
Max.
±20
Units
kΩ
kΩ
%
Test Conditions
T version
U version
50
±3
300
150
V_CC
±1
mW
mA
Ω
Ω
V
dBV/ Hz
%
MI⁽³⁾
25°C, each pot
I_W = ± 3mA @ V_CC = 3V
I_W = ± 3mA @ V_CC = 5V
V_SS = 0V
Ref: 1V
R_w(n)(actual) – R_{w(n)(expected)}⁽⁵⁾
Relative Linearity⁽²⁾
±0.2
MI⁽³⁾
R_{w(n + 1)} – [R_{w(n) + MI}]⁽⁵⁾
C_H/C_L/C_W
Temperature Coefficient of
R_TOTAL
Ratiometric Temp. Coefficient
Potentiometer Capacitancies
±300
20
10/10/25
ppm/°C
ppm/°C
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 1.1.7 2/6/03
www.xicor.com
Characteristics subject to change without notice. 13 of 23