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ISL23325 Datasheet, PDF (5/20 Pages) Intersil Corporation – Dual, 256-Tap, Low Voltage Digitally Controlled Potentiometer (XDCP™)
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ISL23325
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
(Note 20)
TYP
(Note 8)
MAX
(Note 20)
UNITS
VOLTAGE DIVIDER MODE (0V @ RL; VCC @ RH; measured at RW, unloaded)
INL Integral Non-linearity, Guaranteed
(Note 13) Monotonic
W option
-1.0
±0.5
+1.0
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
-1
±0.4
+1
LSB
(Note 9)
U, T option
-0.4
±0.1
+0.4
LSB
(Note 9)
FSerror Full-scale Error
W option
-5
-2
0
LSB
(Note 9)
U, T option
-2
-0.5
0
LSB
(Note 9)
ZSerror Zero-scale Error
(Note 10)
W option
0
2
5
LSB
(Note 9)
U, T option
0
0.4
2
LSB
(Note 9)
Vmatch DCP to DCP Matching
(Note 22)
DCPs at same tap position, same
-2
voltage at all RH terminals, and same
voltage at all RL terminals
±0.5
2
LSB
(Note 9)
TCV Ratiometric Temperature Coefficient W option, Wiper Register set to 80 hex
8
ppm/°C
(Notes 14)
U option, Wiper Register set to 80 hex
4
ppm/°C
T option, Wiper Register set to 80 hex
2.3
ppm/°C
tLS_Settling Large Signal Wiper Settling Time
From code 0 to FF hex, measured from
300
ns
0 to 1 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
-2.0
±1
+2.0
MI
(Note 15)
W option; VCC = 1.7V
10.5
MI
(Note 15)
U, T option; VCC = 2.7V to 5.5V
-1.0
±0.3
+1.0
MI
(Note 15)
U, T option; VCC = 1.7V
2.1
MI
(Note 15)
RDNL Differential Non-linearity, Guaranteed W option; VCC = 2.7V to 5.5V
(Note 17) Monotonic
-1
±0.4
+1
MI
(Note 15)
W option; VCC = 1.7V
±0.6
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
±0.35
MI
(Note 15)
5
FN7870.0
June 21, 2011
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