Datasheet

AD5227
Rev. B | Page 9 of 16
6
–54
–48
–42
–36
–30
–24
–18
–12
–6
0
1k 10k 1M
START 1 000.000Hz STOP 1 000 000.000Hz
REF LEVEL
0dB
/DIV
6.0dB
MARKER
MAG (A/R)
100 885.289Hz
–9.060dB
100k
04419-0-043
dB
T
A
= 25°C
V
DD
= 5.5V
V
A
= 50mV rms
32 STEPS
16 STEPS
8 STEPS
4 STEPS
2 STEPS
1 STEP
Figure 18. Gain vs. Frequency vs. Code, R
AB
= 50 kΩ
6
–54
–48
–42
–36
–30
–24
–18
–12
–6
0
1k 10k 1M
START 1 000.000Hz STOP 1 000 000.000Hz
REF LEVEL
0dB
/DIV
6.0dB
MARKER
MAG (A/R)
52 246.435Hz
–9.139dB
100k
04419-0-044
dB
T
A
= 25°C
V
DD
= 5.5V
V
A
= 50mV rms
32 STEPS
16 STEPS
8 STEPS
4 STEPS
2 STEPS
1 STEP
Figure 19. Gain vs. Frequency vs. Code, R
AB
= 100 kΩ
0
–60
–40
–20
100 1k 10k 100k 1M
04419-0-023
FREQUENCY (Hz)
PSRR (dB)
V
DD
= 5V DC ±10% p-p AC
V
DD
= 3V DC ±10% p-p AC
STEP = MIDSCALE, V
A
= V
DD
, V
B
= 0V
Figure 20. PSRR
200
0
100
150
50
10k 100k 10M1M
04419-0-024
FREQUENCY (Hz)
I
DD
(
μ
A)
V
DD
= 5V
V
DD
= 3V
Figure 21. I
DD
vs. CLK Frequency
1.2
0
0.2
0.4
0.6
0.8
1.0
0 8 16 24 32 40 48 56 64
04419-0-025
CODE (Decimal)
THEORETICAL I
WB_MAX
(mA)
R
AB
= 10kΩ
R
AB
= 50kΩ
R
AB
= 100kΩ
A = OPEN
T
A
= 25°C
Figure 22. Maximum I
WB
vs. Code
04419-0-022
CH1 2.00V CH2 50.0mV M 400ns A CH2 60.0mV
V
W
1
2
VA
T 0.00000s
V
DD
= 5V
V
A
= 5V
V
B
= 0V
VB = 0V
STEP N+1
STEP N
Figure 23. Step Change Settling Time