Datasheet

Data Sheet AD5124/AD5144/AD5144A
Rev. A | Page 19 of 36
–60
–50
–40
–30
–20
–10
0
10 100
1k
10k
100k
1M 10M
GAIN (dB)
FREQUENC
Y (Hz)
AD5144/AD5144A (AD5124)
10877-022
0x80 (0x40)
0x40 (0x20)
0x20 (0x10)
0x10 (0x08)
0x8 (0x04)
0x4 (0x02)
0x2 (0x01)
0x1 (0x00)
0x00
Figure 24. 10 kΩ Gain vs. Frequency vs. Code
–100
–90
–80
–70
–60
–50
–40
20
200
2k
20k 200k
THD + N (dB)
FREQUENC
Y (Hz)
10k
Ω
100k
Ω
10877-025
V
DD
/V
SS
= ±2.5V
V
A
= 1V rms
V
B
= GND
CODE = HALF SCALE
NOISE FILTER = 22kHz
Figure 25. Total Harmonic Distortion Plus Noise (THD + N) vs. Frequency
–100
–80
–60
–40
–20
0
20
10 100 1k 10k 100k 1M 10M
PHASE (Degrees)
FREQUENCY (Hz)
10877-026
QUARTER SCALE
MIDSCALE
FULL-SCALE
V
DD
/V
SS
= ±2.5V
R
AB
= 10kΩ
Figure 26. Normalized Phase Flatness vs. Frequency, R
AB
= 10 kΩ
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
GAIN (dB)
FREQUENCY (Hz)
10 100 1k 10k 100k 1M 10M
10877-123
0x80 (0x40)
0x40 (0x20)
0x20 (0x10)
0x10 (0x08)
0x8 (0x04)
0x4 (0x02)
0x2 (0x01)
0x1 (0x00)
0x00
AD5144/AD5144A (AD5124)
Figure 27. 100 kΩ Gain vs. Frequency vs. Code
10k
Ω
100k
Ω
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
0.001 0.01 0.1 1
THD + N (dB)
VO
LTAGE (V rms)
V
DD
/V
SS
= ±2.5V
f
IN
= 1kHz
CODE = HALF SCALE
NOISE FILTER = 22kHz
10877-028
Figure 28. Total Harmonic Distortion Plus Noise (THD + N) vs. Amplitude
–80
–90
–70
–60
–50
–40
–30
–20
–10
0
10
10
100 1k
10k
100k
1M
PHASE (Degrees)
FREQUENCY (Hz)
QUARTER SCALE
MIDSCALE
FULL-SCALE
10877-029
V
DD
/V
SS
= ±2.5V
R
AB
= 100kΩ
Figure 29. Normalized Phase Flatness vs. Frequency, R
AB
= 100 kΩ