11
FN8195.1
April 26, 2006
ABSOLUTE MAXIMUM RATINGS
Temperature under bias .....................-65C to +135C
Storage temperature ..........................-65C to +150C
Voltage on SCK, 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
L
/R
L
, V
W
/R
W
........................... V- to V+
Lead temperature (soldering, 10s) .....................300C
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; 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.
ANALOG 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 potenti-
ometer. It is a measure of the error in step size.
(3) MI = RTOT/63 or (V
H
- V
L
)/63, single pot.
(4) Typical = Individual array resolution.
Symbol Parameter
Limits
Test ConditionsMin. Typ. Max. Units
R
TOTAL
End to End Resistance ±20 %
Power Rating 50 mW 25C, each pot
I
W
Wiper Current ±3 mA
R
W
Wiper Resistance 150 250 Ω Wiper Current = ± 1mA,
V+/V- = ±3V
40 100 Ω Wiper Current = ± 1mA,
V+/V- = ±5V
Vv+ Voltage on V+ Pin X9420 +4.5 +5.5 V
X9420-2.7 +2.7 +5.5
Vv- Voltage on V- Pin X9420 -5.5 -4.5 V
X9420-2.7 -5.5 -2.7
V
TERM
Voltage on any V
H
/R
H
, V
L
/R
L
, V
W
/R
W
V- V+ V
Noise -140 dBV Ref: 1kHz
Resolution
(4)
1.6 % See Note 5
Absolute Linearity
(1)
±1 MI
(3)
V
w(n)(actual)
- V
w(n)(expected)
Relative Linearity
(2)
±0.2 MI
(3)
V
w(n + 1)
- [V
w(n) + MI
]
Temperature Coefficient of R
TOTAL
±300 ppm/C See Note 5
Ratiometric Temperature Coefficient ±20 ppm/C See Note 5
C
H
/C
L
/C
W
Potentiometer Capacitances 10/10/25 pF See Circuit #3
I
AL
Rh, RI, Rw leakage current 0.1 10 µA Vin = V- to V+. Device is in
stand-by mode.
RECOMMENDED OPERATING CONDITIONS
Temp Min. Max.
Commercial 0°C+70°C
Industrial -40°C+85°C
Device Supply Voltage (V
CC
) Limits
X9420 5V ± 10%
X9420-2.7 2.7V to 5.5V
X9420