
REV. 0
–10–
AD5426/AD5432/AD5443
VOLTAGE (V)
5.5
T
1.8
1.6
0
0.8
0.6
0.4
0.2
1.4
1.0
1.2
5.0
4.5
4.0
3.5
3.0
2.5
T
A
= 25 C
V
IL
V
IH
TPC 28. Threshold Voltages
vs. Supply Voltage
FREQUENCY (Hz)
S
0
–70
–100
50
0
–10
–60
–80
–90
–40
–50
–20
–30
100 150 200 250 300 350 400 450 500
T
A
= 25 C
V
= 3.5V
AD8038 AMP
AD5443
TPC 31. Wideband SFDR
f
OUT
= 50 kHz, Update = 1 MHz
FREQUENCY (Hz)
S
0
–70
–100
12
10
–10
–60
–80
–90
–40
–50
–20
–30
14
16
18
20
22
24
26
28
30
T
A
= 25 C
V
= 3.5V
AD8038 AMP
AD5443
TPC 34. Narrowband (
±
50%)
SFDR f
OUT
= 20 kHz,
Update = 1 MHz
f
OUT
(kHz)
S
100
80
0
50
40
60
40
20
30
20
10
0
T
A
= 25 C
V
REF
= 3.5V
AD8038 AMP
AD5443
MCLK = 500kHz
MCLK = 200kHz
MCLK = 1MHz
TPC 29. Wideband SFDR vs.
f
OUT
Frequency (AD5443)
FREQUENCY (Hz)
S
0
–70
–100
50
0
–10
–60
–80
–90
–40
–50
–20
–30
100 150 200 250 300 350 400 450 500
T
A
= 25 C
V
= 3.5V
AD8038 AMP
AD5443
TPC 32. Wideband SFDR
f
OUT
= 20 kHz, Update = 1 MHz
FREQUENCY (Hz)
10
15
20
25
35
30
d
0
–10
–100
–20
–30
–40
–50
–60
–70
–80
–90
T
A
= 25 C
V
REF
= 3.5V
AD8038 AMP
AD5443
TPC 35. Narrowband (
±
50%)
IMD, f
OUT
= 20 kHz, 25 kHz,
Update = 1 MHz
f
OUT
(kHz)
S
80
60
0
50
40
40
20
30
20
10
0
T
A
= 25 C
V
= 3.5V
AD8038 AMP
AD5426
MCLK = 1MHz
MCLK = 200kHz
MCLK = 500kHz
TPC 30. Wideband SFDR vs.
f
OUT
Frequency (AD5426)
FREQUENCY (Hz)
S
0
–70
–100
30
25
–10
–60
–80
–90
–40
–50
–20
–30
35
40
45
50
55
60
65
70
75
T
A
= 25 C
V
= 3.5V
AD8038 AMP
AD5443
TPC 33. Narrowband (
±
50%)
SFDR f
OUT
= 50 kHz,
Update = 1 MHz