15
FN8172.4
August 29, 2006
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
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.
POTENTIOMETER CHARACTERISTICS (Over recommended operating conditions unless otherwise stated.)
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.
RECOMMENDED OPERATING CONDITIONS
Temp Min. Max.
Commercial 0°C+70°C
Industrial -40°C+85°C
Device Supply Voltage (V
CC
)
(4)
Limits
X9268 5V ±10%
X9268-2.7 2.7V to 5.5V
V+ 2.7V to 5.5V
V- -2.7V to -5.5V
Symbol Parameter Test Conditions Min. Typ. Max. Unit
R
TOTAL
End to End Resistance T version 100 kΩ
R
TOTAL
End to EndResistance U version 50 kΩ
End to end resistance tolerance ±20 %
Power rating +25°C, each pot 50 mW
I
W
Wiper current ±3 mA
R
W
Wiper resistance I
W
= ± 1mA, V+ = 3V; V- = -3V 250 Ω
R
W
Wiper resistance I
W
= ± 1mA, V+ = 5V; V- = -5V 150 Ω
V+ Voltage on V+ Pin X9268 +4.5 +5.5 V
X9268-2.7 +2.7 +5.5
V- Voltage on V- Pin X9268 -5.5 -4.5 V
X9268 -2.7 -5.5 -2.7
V
TERM
Voltage on any V
H
/R
H
or V
L
/R
L
pin V- V+ V
Noise Ref: 1kHz -120 dBV
Resolution
(4)
0.4 %
Absolute linearity
(1)
V
w(n)(actual)
- V
w(n)(expected)
±1 MI
(3)
Relative linearity
(2)
V
w(n + 1)
- [V
w(n) + MI
]±0.6MI
(3)
Temperature coefficient of resistance ±300 ppm/°C
Ratiometric Temperature Coefficient ±20 ppm/°C
C
H
/C
L
/C
W
Potentiometer Capacitance See Circuit #3 10/10/25 pF
X9268
