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ISL23348 Datasheet, PDF (5/19 Pages) Intersil Corporation – Quad, 128 Tap, Low Voltage Digitally Controlled Potentiometer (XDCP™)
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ISL23348
Analog Specifications VCC = 2.7V to 5.5V, VLOGIC = 1.2V to 5.5V over recommended operating conditions unless otherwise stated.
Boldface limits apply over the operating temperature range, -40°C to +125°C. (Continued)
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
(Note 20) (Note 8) (Note 20) UNITS
VOLTAGE DIVIDER MODE (0V @ RL; VCC @ RH; measured at RW, unloaded)
INL
Integral Non-linearity, Guaranteed
(Note 13) Monotonic
W option
-0.5
±0.15
+0.5
LSB
(Note 9)
U, T option
-0.5
±0.15
+0.5
LSB
(Note 9)
DNL Differential Non-linearity, Guaranteed W option
(Note 12) Monotonic
-0.5
±0.15
+0.5
LSB
(Note 9)
U, T option
-0.5
±0.15
+0.5
LSB
(Note 9)
FSerror Full-scale Error
(Note 11)
W option
-3
-1.5
0
LSB
(Note 9)
U, T option
-1.5
-0.9
0
LSB
(Note 9)
ZSerror Zero-scale Error
(Note 10)
W option
0
1.5
3
LSB
(Note 9)
U, T option
0
0.9
1.5
LSB
(Note 9)
Vmatch DCP to DCP Matching
(Note 22)
DCPs at same tap position, same voltage at all -2
RH terminals, and same voltage at all RL
terminals
±0.5
2
LSB
(Note 9)
TCV
Ratiometric Temperature Coefficient
(Notes 14)
W option, Wiper Register set to 40 hex
U option, Wiper Register set to 40 hex
8
ppm/°C
4
ppm/°C
T option, Wiper Register set to 40 hex
2.3
ppm/°C
tLS_Settling Large Signal Wiper Settling Time
From code 0 to 7f hex, measured from 0 to 1
300
ns
LSB settling of the wiper
fcutoff -3dB Cutoff Frequency
Wiper at middle point W option
Wiper at middle point U option
1200
kHz
250
kHz
Wiper at middle point T option
120
kHz
RHEOSTAT MODE (Measurements between RW and RL pins with RH not connected, or between RW and RH with RL not connected)
RINL Integral Non-linearity, Guaranteed
(Note 18) Monotonic
W option; VCC = 2.7V to 5.5V
-1.0
±0.5
+1.0
MI
(Note 15)
W option; VCC = 1.7V
4
MI
(Note 15)
U, T option; VCC = 2.7V to 5.5V
-0.5
±0.15
+0.5
MI
(Note 15)
U, T option; VCC = 1.7V
1
MI
(Note 15)
RDNL Differential Non-linearity, Guaranteed W option; VCC = 2.7V to 5.5V
(Note 17) Monotonic
-0.5
±0.15
+0.5
MI
(Note 15)
W option; VCC = 1.7V
±0.4
MI
(Note 15)
U, T option; VCC = 2.7V to 5.5V
-0.5
±0.15
+0.5
MI
(Note 15)
U, T option; VCC = 1.7V
±0.4
MI
(Note 15)
5
FN7903.1
August 24, 2011
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