Datasheet

AD7225
Rev. C | Page 7 of 24
TYPICAL PERFORMANCE CHARACTERISTICS
T
A
= 25°C, V
DD
= 15 V, V
SS
= −5 V, unless otherwise noted.
1.0
–1.0
–0.5
0
0.5
0 32 64 96 128 160 192 224
TOTAL UNADJUSTED ERROR (LSB)
INPUT CODE
V
REF
x = 10V
00986-004
Figure 4. Channel-to-Channel Matching
1.0
–1.0
–0.5
0
0.5
0 1 2 3 4 5 6 7 8 9 10 11 12 13
RELATIVE ACCURACY (LSB)
V
REF
(V)
V
DD
= 5V V
DD
= 12V V
DD
= 15V
00986-005
Figure 5. Relative Accuracy vs. V
REF
0.50
–0.50
–0.25
0
0.
25
0 1 2 3 4 5 6 7 8 9 10 11 12 13
DIFFERENTIAL NONLINEARITY (LSB)
V
REF
(V)
V
DD
= 5V V
DD
= 12V V
DD
= 15V
00986-006
Figure 6. Differential Nonlinearity vs. V
REF
8
–7
–6
–5
–4
–3
–2
–1
0
1
2
3
4
5
6
7
–60 –40 –20 0 20 40 60 80 100 120 140
POWER SUPPLY CURRENT (mA)
TEMPERATURE (°C)
I
DD
I
SS
00986-007
Figure 7. Power Supply Current vs. Temperature
5
–5
–4
–3
–2
–1
0
1
2
3
4
–60 –40 –20 0 20 40 60 80 100 120 140
ZERO CODE ERROR (mV)
TEMPERATURE (°C)
V
OUT
A
V
OUT
B
V
OUT
C
V
OUT
D
00986-008
Figure 8. Zero Code Error vs. Temperature
100
90
10
0%
1ms/DIV
300µV
00986-009
Figure 9. Broadband Noise