CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
3.
θ
JA
is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
Analog Specifications
SYMBOL
R
TOTAL
Over recommended operating conditions unless otherwise stated.
TEST CONDITIONS
W option
U option
T option
MIN
TYP
(NOTE 4)
10
50
100
-20
W option
U, T option
±85
±45
V-
70
10/10/25
0.1
1
V
CC
250
+20
MAX
UNIT
kΩ
kΩ
kΩ
%
ppm/°C
ppm/°C
V
Ω
pF
µA
PARAMETER
RHi to RLi resistance
RHi to RLi resistance tolerance
End-to-End Temperature Coefficient
V
RH
, V
RL
R
W
C
H
/C
L
/C
W
(Note 20)
I
LkgDCP
INL
(Note 9)
DCP terminal voltage
Wiper resistance
Potentiometer capacitance
Leakage on DCP pins
V
RHi
and V
RLi
to GND
RH - floating, V
RL
= V-, force Iw current to
the wiper, I
W
= (V
CC
- V
RL
)/R
TOTAL
See “DCP Macro Model” on page 8.
Voltage at pin from V- to V
CC
W option
U, T option
VOLTAGE DIVIDER MODE
(V- @ RLi; V
CC
@ RHi; measured at RWi, unloaded)
Integral non-linearity
-1.5
-1.0
-1.0
-0.5
0
0
-5
-2
-2
±0.5
±0.2
±0.4
±0.15
1
0.5
-1
-1
1.5
1.0
1.0
0.5
5
2
0
0
2
LSB
(Note 5)
LSB
(Note 5)
LSB
(Note 5)
LSB
(Note 5)
LSB
(Note 5)
LSB
(Note 5)
LSB
(Note 5)
ppm/°C
DNL
(Note 8)
Differential non-linearity
Monotonic over all tap positions,
W option
U, T option
ZSerror
(Note 6)
FSerror
(Note 7)
V
MATCH
(Note 10)
Zero-scale error
W option
U, T option
Full-scale error
W option
U, T option
DCP to DCP matching
Wipers at the same tap position, the same
voltage at all RH terminals and the same
voltage at all RL terminals
DCP register set to 80 hex
TC
V
Ratiometric temperature coefficient
(Note 11, 20)
±4
4
FN6426.0
May 24, 2007
ISL22444
Analog Specifications
SYMBOL
f
cutoff
(Note 20)
Over recommended operating conditions unless otherwise stated.
(Continued)
TEST CONDITIONS
Wiper at midpoint (80hex) W option (10k)
Wiper at midpoint (80hex) U option (50k)
Wiper at midpoint (80hex) T option (100k)
MIN
TYP
(NOTE 4)
1000
250
120
MAX
UNIT
kHz
kHz
kHz
PARAMETER
-3dB cut off frequency
RESISTOR MODE
(Measurements between RWi and RL i with RHi not connected, or between RWi and RHi with RLi not connected)
RINL
(Note 15)
Integral non-linearity
W option
U, T option
RDNL
(Note 14)
Differential non-linearity
W option
U, T option
Roffset
(Note 13)
Offset
W option
U, T option
R
MATCH
(Note 16)
DCP to DCP matching
Wipers at the same tap position with the
same terminal voltages
DCP register set between 32 hex and FFhex
-3
-1
-1.5
-0.5
0
0
-3
±40
±1.5
±0.4
±0.5
±0.15
1
0.5
3
1
1.5
0.5
5
2
3
MI
(Note 12)
MI
(Note 12)
MI
(Note 12)
MI
(Note 12)
MI
(Note 12)
MI
(Note 12)
MI
(Note 12)
ppm/°C
TC
R
Resistance temperature coefficient
(Note 17, 20)
Operating Specifications
Over the recommended operating conditions unless otherwise specified.
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