Datasheet

Data Sheet AD5121/AD5141
Rev. A | Page 17 of 32
0
100
200
300
400
500
600
0 1
2
3
4 5
WIPER ON RESISTANCE (Ω)
VOLTAGE (V)
100kΩ, V
DD
= 2.3V
100kΩ, V
DD
= 2.7V
100kΩ, V
DD
= 3V
100kΩ, V
DD
= 3.6V
100kΩ, V
DD
= 5V
100kΩ, V
DD
= 5.5V
10kΩ, V
DD
= 2.3V
10kΩ, V
DD
= 2.7V
10kΩ, V
DD
= 3V
10kΩ, V
DD
= 3.6V
10kΩ, V
DD
= 5V
10kΩ, V
DD
= 5.5V
10940-030
Figure 26. Incremental Wiper On Resistance vs. V
DD
0
1
2
3
4
5
6
7
8
9
10
0 20
40
60
80 100 120
0 10
20
30
40 50
60
BANDWIDTH (MHz)
CODE (Decimal)
AD5141
AD5121
10kΩ + 0pF
10kΩ + 75pF
10kΩ + 150pF
10kΩ + 250pF
100kΩ + 0pF
100kΩ + 75pF
100kΩ + 150pF
100kΩ + 250pF
10940-031
Figure 27. Maximum Bandwidth vs. Code vs. Net Capacitance
–0.1
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0
5
10
15
RELATIVE VOLTAGE (V)
TIME (µs)
0x80 TO 0x7F, 100kΩ
0x80 TO 0x7F, 10kΩ
V
DD
/V
SS
= ±2.5V
V
A
= V
DD
V
B
= V
SS
10940-032
Figure 28. Maximum Transition Glitch
0
0.2
0.4
0.6
0.8
1.0
1.2
0
0.0005
0.0010
0.0015
0.0020
0.0025
–400–500–600 –300 –200 –100 0 100 200 300 400 500
6
0
0
RESISTOR DRIFT (ppm)
CUMULATIVE PROBABILITY
PROBABILITY DENSITY
10940-033
Figure 29. Resistor Lifetime Drift
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
10 100 1k 10k 100k 1M 10M
PSRR (dB)
FREQUENCY (Hz)
10kΩ
100kΩ
10940-034
Figure 30. Power Supply Rejection Ratio (PSRR) vs. Frequency
–0.020
–0.015
–0.010
–0.005
0
0.005
0.010
0.015
0.020
0
500
1000 1500
2000
RELATIVE VOLTAGE (V)
TIME (ns)
10940-035
Figure 31. Digital Feedthrough