X9268_06 Datasheet, PDF (15/22 Pages) Intersil Corporation – Dual Digitally-Controlled Potentiometers

X9268
ABSOLUTE MAXIMUM RATINGS
Temperature under bias .................... -65°C to +135°C
Storage temperature ......................... -65°C to +150°C
Voltage on SDA, SCL or any address input
with respect to V_SS ................................. -1V to +7V
Voltage on V+ (referenced to V_SS)........................ 10V
Voltage on V- (referenced to V_SS)........................-10V
(V+) - (V-) .............................................................. 12V
Any V_H/R_H ..............................................................V+
Any V_L/R_L.................................................................V-
Lead temperature (soldering, 10s) .................. +300°C
I_W (10s) ..............................................................±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
X9268
X9268-2.7
Supply Voltage (V_CC)⁽⁴⁾ Limits
5V ±10%
2.7V to 5.5V
V+
2.7V to 5.5V
V-
-2.7V to -5.5V
POTENTIOMETER CHARACTERISTICS (Over recommended operating conditions unless otherwise stated.)
Symbol
R_TOTAL
R_TOTAL
I_W
R_W
R_W
V+
V-
V_TERM
Parameter
End to End Resistance
End to EndResistance
End to end resistance tolerance
Power rating
Wiper current
Wiper resistance
Wiper resistance
Voltage on V+ Pin
Voltage on V- Pin
Voltage on any V_H/R_H or V_L/R_L pin
Noise
Resolution ⁽⁴⁾
Absolute linearity ⁽¹⁾
Relative linearity ⁽²⁾
Temperature coefficient of resistance
Ratiometric Temperature Coefficient
Test Conditions
T version
U version
+25°C, each pot
I_W = ± 1mA, V+ = 3V; V- = -3V
I_W = ± 1mA, V+ = 5V; V- = -5V
X9268
X9268-2.7
X9268
X9268 -2.7
Ref: 1kHz
V_w(n)(actual) - V_{w(n)(expected)}
V_{w(n + 1)} - [V_{w(n) + MI}]
Min.
+4.5
+2.7
-5.5
-5.5
V-
Typ.
100
50
-120
0.4
±300
Max.
±20
50
±3
250
150
+5.5
+5.5
-4.5
-2.7
V+
±1
±0.6
±20
Unit
kΩ
kΩ
%
mW
mA
Ω
Ω
V
V
V
dBV
%
MI⁽³⁾
MI⁽³⁾
ppm/°C
ppm/°C
C_H/C_L/C_W Potentiometer Capacitance
See Circuit #3
10/10/25
pF
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.
15
FN8172.4
August 29, 2006