AD5203_15 Datasheet, PDF (6/12 Pages) Analog Devices – 4-Channel, 64-Position Digital Potentiometer

AD5203–Typical Performance Characteristics
R_W
(20mV/DIV)
CS
(5V/DIV)
TIME 500ns/DIV
Figure 11. One Position Step Change
at Half-Scale (Code 1F_H to 20_H)
0
CODE = 3F_H
–10
20_H
10_H
–20
08_H
04_H
–30
02_H
01_H
–40
T_A = +25؇C
SEE TEST CIRCUIT FIGURE 32
–50
10 100 1k 10k 100k 1M 10M
FREQUENCY – Hz
Figure 12. Gain vs. Frequency for
R = 10 kΩ
0.75
0.5
0.25
0
–0.25
V_DD = +5V
CODE = 3F_H
SS = 77 UNITS
AVG +2 ⌺
AVG
AVG –2 ⌺
–0.5
–0.75
0
100 200 300 400 500 600
HOURS OF OPERATION @ 150؇C
␣ ␣ ␣ ␣ Figure 13. Long-Term Drift
Accelerated by Burn-In
OUTPUT
CS
TIME 5␮s/DIV
Figure 14. Large Signal Settling Time
10
FILTER = 22kHz
V_DD = +5V
1
T_A = +25؇C
R_AB = 10k⍀
0.1
SEE TEST CIRCUIT FIGURE 31
0.01
SEE TEST CIRCUIT FIGURE 30
0.001
10
100
1k
10k
FREQUENCY – Hz
100k
Figure 15.␣ Total Harmonic Distortion
Plus Noise vs. Frequency
0
CODE = 3F_H
–10
20_H
10_H
–20
08_H
04_H
–30
02_H
–40 V_DD = +5V
01_H
T_A = +25؇C
5dB/DIV
–50
10
100
1k
10k 100k 1M
FREQUENCY – Hz
Figure 17. 100 kΩ Gain vs. Frequency
vs. Code
0
–0.1
R_AB = 10k⍀
–0.2
–0.3
–0.4
R_AB = 100k⍀
–0.5
–0.6
–0.7 V_DD = +5V
–0.8
CODE = 3F_H
T_A = +25؇C
–0.9 SEE TEST CIRCUIT FIGURE 32
–1.0
10
100
1k
10k 100k 1M
FREQUENCY – Hz
Figure 18. Normalized Gain Flat-
ness vs. Frequency
V_OUT
(20mV/DIV)
TIME 100ns/DIV
Figure 16. Digital Feedthrough vs.
Time
10
V_DD = +5.0V
1
V_DD = +3.0V
0.1
0.01
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
INPUT LOGIC VOLTAGE – Volts
Figure 19. Supply Current vs. Logic
Input Voltage
–6–
REV. 0