±15V, 128-Tap, Low-Drift Digital Potentiometers
Typical Operating Characteristics (continued)
(VDD = +15V, VSS = -15V, VCC = +5V, VH = VDD, VL = VSS, TA = +25°C, unless otherwise noted.)
0.010
0.008
0.006
0.004
0.002
0
-0.002
-0.004
-0.006
-0.008
-0.010
0
VOLTAGE-DIVIDER DNL
vs. INPUT CODE (100kΩ)
16 32 48 64 80 96 112 128
INPUT CODE
WIPER FREQUENCY RESPONSE
AT MIDSCALE (100kΩ)
0
VH = 1.5VP-P
-2 CWIPER = 20pF
-4
-6
-8
-10
-12
-14
-16
-18
-20
0.01
0.1
1
10 100 1000
FREQUENCY (kHz)
0.05
0.04
0.03
0.02
0.01
0
-0.01
-0.02
-0.03
-0.04
-0.05
0
VOLTAGE-DIVIDER INL
vs. INPUT CODE (50kΩ)
16 32 48 64 80 96 112 128
INPUT CODE
0.05
0.04
0.03
0.02
0.01
0
-0.01
-0.02
-0.03
-0.04
-0.05
0
VOLTAGE-DIVIDER INL
vs. INPUT CODE (100kΩ)
16 32 48 64 80 96 112 128
INPUT CODE
AMPLIFIER SMALL-SIGNAL
FREQUENCY RESPONSE
5
VIN = 50mVP-P
UNITY GAIN
0
14.000
13.999
AMPLIFIER OUTPUT
vs. OUTPUT LOAD CURRENT
VIN = +13V
GAIN SETTING 1.077
-5
13.998
-10
13.997
-15
13.996
-20
0.01
0.1
1
10 100 1000
FREQUENCY (kHz)
AMPLIFIER INPUT-REFERRED OFFSET
vs. TEMPERATURE
0
-0.2
-0.4
-0.6
-0.8
-1.0
-1.2
-1.4
-1.6
-1.8
-2.0
-40 -15
10
35
60
85
TEMPERATURE (°C)
13.995
0
2
4
6
8
10
LOAD CURRENT (mA)
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