Datasheet

Data Sheet AD5270/AD5271
Rev. F | Page 15 of 24
0
–20
–40
–60
–100
–80
100
20kΩ
50kΩ
100kΩ
FREQUENCY (Hz)
1k
10k
100k
THD + N (dB)
V
DD
/V
SS
= 5V/0V
CODE = HALF SCALE
NOISE BW = 22kHz
V
IN
= 1V rms
08077-025
Figure 31. THD + N vs. Frequency
0.03
0.01
0
0.02
–0.01
–0.02
–0.04
–0.03
–1 4 9 14 19
TIME (µs)
VOLTAGE (V)
20kΩ
50kΩ
100kΩ
08077-043
Figure 32. Maximum Glitch Energy
45
35
30
40
25
20
0
15
10
5
2.7 3.2
3.7 4.2 4.7 5.2
20kΩ
50kΩ
100kΩ
V
DD
(V)
T
A
= 25°C
NUMBER OF CODES (AD5270) NUMBER OF CODES (AD5271)
7.50
8.75
6.25
5.00
3.75
2.50
1.25
0
11.25
10.00
08077-021
Figure 33. Maximum Code Loss vs. Voltage
0
–20
–30
–10
–40
–50
–100
–60
–70
–80
–90
0.001 0.01 0.1
1
20kΩ
50kΩ
100kΩ
VOLTAGE (V
RMS
)
THD + N (dB)
V
DD
/V
SS
= 5V/0V
CODE = HALF SCALE
f
IN
= 1kHz
NOISE BW = 22kHz
08077-026
Figure 34. THD + N vs. Amplitude
0.0010
0.0005
0
–0.0015
–0.0005
–0.0010
0–10
10 20 30 40 50 60
TIME (µs)
VOLTAGE (V)
V
DD
/V
SS
= 5V/0V
I
AW
= 200µA
CODE = HALF SCALE
08077-046
Figure 35. Digital Feedthrough
70
60
50
40
0
30
20
10
–40 –20 0 20 40 60 80 100 120
TEMPERATURE (°C)
NUMBER OF CODES (AD5271)
NUMBER OF CODES (AD5270)
15.0
15.5
12.5
10.0
7.5
5.0
2.5
0
V
DD
/V
SS
= 5V/0V
20kΩ
50kΩ
100kΩ
08077-020
Figure 36. Maximum Code Loss vs. Temperature