ISL23425_15 Datasheet, PDF (5/20 Pages) Intersil Corporation – Dual, 256-Tap, Low Voltage Digitally Contro Potentiometer (XDCP™)

ISL23425
Analog Specifications V_CC = 2.7V to 5.5V, V_LOGIC = 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
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
(Note 11)
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 voltage
-2
at all RH terminals, and same voltage at
all RL terminals
±0.5
2
LSB
(Note 9)
TC_V Ratiometric Temperature Coefficient
(Note 14)
W option, Wiper Register set to 80 hex
U option, Wiper Register set to 80 hex
8
ppm/°C
4
ppm/°C
T option, Wiper Register set to 80 hex
2.3
ppm/°C
t_{LS_Settling} Large Signal Wiper Settling Time
From code 0 to FF hex, measured from 0
300
ns
to 1 LSB settling of the wiper
f_cutoff -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)
R_INL Integral Non-Linearity, Guaranteed
(Note 18) Monotonic
W option; V_CC = 2.7V to 5.5V
-2.0
±1
+2.0
MI
(Note 15)
W option; V_CC = 1.7V
10.5
MI
(Note 15)
U, T option; V_CC = 2.7V to 5.5V
-1.0
±0.3
+1.0
MI
(Note 15)
U, T option; V_CC = 1.7V
2.1
MI
(Note 15)
R_DNL Differential Non-Linearity, Guaranteed W option; V_CC = 2.7V to 5.5V
(Note 17) Monotonic
-1
±0.4
+1
MI
(Note 15)
W option; V_CC = 1.7V
±0.6
MI
(Note 15)
U, T option; V_CC = 2.7V to 5.5V
-0.5
±0.15
+0.5
MI
(Note 15)
U, T option; V_CC = 1.7V
±0.35
MI
(Note 15)
R_offset Offset, wiper at 0 position
(Note 16)
W option; V_CC = 2.7V to 5.5V
0
3
5.5
MI
(Note 15)
W option; V_CC = 1.7V
6.3
MI
(Note 15)
U, T option; V_CC = 2.7V to 5.5V
0
0.5
2
MI
(Note 15)
U, T option; V_CC = 1.7V
1.1
MI
(Note 15)
Rmatch DCP to DCP Matching
(Note 23)
Any two DCPs at the same tap position
-2
with the same terminal voltages
±0.5
2
LSB
(Note 9)
5
FN7873.1
September 11, 2015