Datasheet

AD5291/AD5292
Rev. D | Page 19 of 32
0
100,000
200,000
300,000
400,000
500,000
600,000
700,000
BANDWIDTH (Hz)
800,000
900,000
1,000,000
CODE (Decimal)
5120
12864321680
128 2566432168
07674-222
20k – 0pF
20k – 75pF
20k – 150pF
20k – 250pF
50k – 0pF
50k – 75pF
50k – 150pF
50k – 250pF
100k – 0pF
100k – 75pF
100k – 150pF
100k – 250pF
AD5292
AD5291
Figure 48. Bandwidth vs Code vs Net Capacitance
07674-034
35
30
25
–5
20
15
10
5
0
–0.4 1.21.00.80.60.40.20–0.2
SUPPLY CURRENT I
DD
(mA)
TIME (ms)
Figure 49. I
DD
Waveform While Blowing/Reading Fuse
07674-033
35
–5
0
5
10
15
20
25
30
VOLTAGE (V)
TIME (µs)
V
WB
 , CODE: FULL SCALE,
NORMAL MODE
SYNC
–2 –1
0 1 2 3 4 5 6 7 8 9
10 11 12 13 14 15
V
DD
/V
SS
= 30V/0V
V
LOGIC
= 5V
V
A
= V
DD
V
B
= V
SS
V
WB
, CODE: HALF-SCALE,
NORMAL MODE
V
WB
, CODE: HALF-SCALE,
R-PERF MODE
20k
50k
100k
20k
50k
100k
V
WB
 , CODE: FULL SCALE,
R-PERF MODE
Figure 50. 20kΩ Large-Signal Settling Time from Code Zero Scale
8
0
1
2
3
4
5
6
7
0 256 512 768 1023
0 64 128 192 255
AD5292
AD5291
THEORETICAL I
WB_MAX
(mA)
CODE (Decimal)
07674-029
V
DD
/V
SS
= 30V/0V
V
A
= V
DD
V
B
= V
SS
50k
20k
100k
Figure 51. Theoretical Maximum Current vs. Code
07674-035
1.2
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
1.0
VOLTAGE (V)
TIME (µs)
–2 0 2 4 6 8 10 12 14 16
V
DD
/V
SS
= ±15V
V
LOGIC
= +5V
V
A
= V
DD
V
B
= V
SS
50k
20k
100k
Figure 52. Maximum Transition Glitch
40
32
24
–40
–32
–24
–16
–8
0
8
16
–0.5 0 5 10 15 20 25 30 35 40 45
VOLTAGE (V)
TIME (µs)
V
DD
/V
SS
= ±15V
V
A
= V
DD
V
B
= V
SS
CODE = HALF CODE
07674-032
Figure 53. Digital Feedthrough