Datasheet

AD5444/AD5446 Data Sheet
Rev. E | Page 10 of 28
0 1
2
3 4
5
INPUT VOLTAGE (V)
2.5
2.0
1.5
1.0
0.5
0
SUPPLY CURRENT (mA)
T
A
= 25°C
04588-018
V
DD
= 5V
V
DD
= 3V
Figure 18. Supply Current vs. Logic Input Voltage
ALL 1s
ALL 0s
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
SUPPLY CURRENT (µA)
–40 –20 0 20 40
60 80 100
120
TEMPERATURE (°C)
V
DD
= 5V
V
DD
= 3V
04588-019
Figure 19. Supply Current vs. Temperature
04588-055
1 10 100 1k
10k 100k 1M 10M
FREQUENCY (Hz)
6
0
1
2
3
4
5
SUPPLY CURRENT (mA)
T
A
= 25°C
AD5444
LOADING 0101 0101 0101
V
DD
= 5V
V
DD
= 3V
Figure 20. Supply Current vs. Update Rate
2.5 5.5
SUPPLY VOLTAGE (V)
1.8
1.2
1.0
0.4
0.2
0
V
IH
04588-053
1.6
1.4
0.8
0.6
3.0 3.5 4.54.0 5.0
V
IL
THRESHOLD VOLTAGE (V)
T
A
= 25°C
Figure 21. Threshold Voltage vs. Supply Voltage
10
–80
–70
–60
–50
–40
–30
–20
–10
0
10k 100k
1M 10M
100M
GAIN (dB)
FREQUENCY (Hz)
04588-083
ALL ON
DB11
DB10
DB9
DB8
DB6
DB5
DB4
DB3
DB7
DB2
DB12
DB13
V
DD
= 5V
V
REF
= ±3.5V
C
COMP
= 1.8pF
AD8038 AMPLIFIER
T
A
= 25°C
LOADING
ZS TO FS
Figure 22. Reference Multiplying Bandwidth vs. Frequency and Code
0.6
–1.2
–1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
10k 100k 1M 10M 100M
GAIN (dB)
FREQUENCY (Hz)
04588-084
T
A
= 25°C
V
DD
= 5V
V
REF
= ±3.5V
C
COMP
= 1.8pF
AD8038 AMPLIFIER
Figure 23. Reference Multiplying Bandwidth vs. Frequency—All 1s Loaded