X9260 INTERSIL [Intersil Corporation], X9260 Datasheet - Page 15

• Manufacturer Part Number: X9260
• Description: Dual Supply/Low Power/256-Tap/SPI bus
• Manufacturer: INTERSIL [Intersil Corporation]

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
C
Symbol
V
H
/C
TERM
Vv+
R
R
Vv-
I
W
W
W
(2) Relative linearity is utilized to determine the actual change in voltage between two successive tap positions when used as a
(3) MI = RTOT / 255 or (R
(4) During power-up V
(5) n = 0, 1, 2, …,255; m =0, 1, 2, …, 254.
L
/C
potentiometer.
potentiometer. It is a measure of the error in step size.
W
End to end resistance
Power rating
Wiper current
Wiper resistance
Wiper resistance
Voltage on V+ pin
Voltage on V- pin
Voltage on any V
pin
Noise
Resolution
Absolute linearity
Relative linearity
Temperature coefficient
Ratiometric Temperature
Coefficient
Potentiometer Capacitances
CC
Parameter
(4)
15
H
> V
- R
H
(2)
H
L
, V
(1)
/R
) / 255, single pot
L
H
, and V
X9260
X9260-2.7
X9260
X9260-2.7
or V
W
L
/R
.
L
Min.
+4.5
+2.7
-5.5
-5.5
V-
X9260
10/10/25
±300
Typ.
-120
0.4
Limits
Max.
+5.5
+5.5
±0.6
±20
250
150
-4.5
-2.7
±20
±3
V+
50
±1
ppm/°C
ppm/°C
MI
MI
Unit
dBV
mW
mA
pF
%
%
Ω
Ω
V
V
V
(3)
(3)
25°C, each pot
Wiper current = ± 1mA,
V+ = 3V; V- = -3V
Wiper current = ± 1mA,
V+ = 3V; V- = -3V
Ref: 1kHz
V
V
See Circuit #3
w(n)(actual)
w(n + 1)
Test Conditions
- [V
- V
w(n) + MI
w(n)(expected)
February 28, 2005
]
FN8170.0