Datasheet

AD5116 Data Sheet
Rev. B | Page 10 of 16
0
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
THD + N (dB)
FREQUENCY (Hz)
20 200 2k 20k 200k
10kΩ
5kΩ
80kΩ
09657-020
V
DD
= 5V
V
A
= 2.5V + 1V
RMS
V
B
= 2.5V
CODE = HALF SCALE
NOISE FILTER = 22kHz
Figure 20. Total Harmonic Distortion + Noise (THD + N) vs. Frequency
0
10
20
30
40
50
60
70
BANDWIDTH (MHz)
80
5k + 250pF
10k + 75pF
10k + 150pF
10k + 250pF
80k + 0pF
80k + 75pF
80k + 150pF
80k + 250pF
5k + 0pF
5k + 75pF
5k + 150pF
10k + 0pF
CODE (Decimal)
0 10 20 30 40 50 60
09657-021
Figure 21. Maximum Bandwidth vs. Code vs. Net Capacitance
0
30
60
90
INCREMENTAL WIPER ON RESISTANCE (Ω)
120
150
0 1 2 3
V
DD
(V)
4
5 6
5.5V
5V
3.3V
2.7V
2.3V
T
A
= 25°C
09657-022
Figure 22. Incremental Wiper on Resistance vs. V
DD
THD + N (dB)
AMPLITUDE (V rms)
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
0.001 0.01 0.1 1
10kΩ
5kΩ
80kΩ
09657-023
V
DD
= 5V
V
A
= 2.5V + V
IN
V
B
= 2.5V
f
IN
= 1kHz
CODE = HALF SCALE
NOISE FILTER = 22kHz
Figure 23. Total Harmonic Distortion + Noise (THD + N) vs. Amplitude
–0.10
–0.05
0
0.05
0.10
0.15
REL
ATIVE VOLTAGE (V)
0.20
0.25
0.30
0.35
–1
1
3
5
TIME (µs)
7
9
5k
Ω
10kΩ
80kΩ
V
DD
= 5V
V
A
= V
DD
V
B
= GND
09657-024
Figure 24. 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 0 100 200 300 400 500 600
CUMULATIVE PROBABILITY
PROBABILITY DENSITY
RESISTOR DRIFT (ppm)
09657-047
Figure 25. Resistor Lifetime Drift