Datasheet

AD7392/AD7393
Rev. C | Page 10 of 20
01121-020
TIME (2µs/DIV)
2µs AD7392
20mV
CS
(5V/DIV)
V
DD
= 5V
V
REF
= 2.5V
f
CLK
= 50kHz
CODE: 0x7F TO 0x80
V
OUT
(5mV/DIV)
Figure 17. Midscale Transition Performance
01121-021
TIME (5µs/DIV)
5µs
5mV
V
DD
= 5V
V
REF
= 2.5V
CS = HIGH
V
OUT
(5mV/DIV)
D0 TO D11
(5V/DIV)
Figure 18. Digital Feedthrough
01121-022
TIME (100µs/DIV)
100µs
1V
V
DD
= 5V
V
REF
= 2.5V
AD7392
V
OUT
(1V/DIV)
CS
(5V/DIV)
Figure 19. Large Signal Settling Time
–30
10 100 1k 10k 100k
–25
–20
–15
–10
–5
0
5
01121-023
FREQUENCY (Hz)
GAIN (dB)
V
DD
= 5V
V
REF
= 100mV + 2V
DC
DATA = 0xFFF
Figure 20. Reference Multiplying Bandwidth
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
01234
2.0
01121-024
REFERENCE VOLTAGE (V)
INL (LSB)
AD7392
V
DD
= 5V
CODE = 0x768
T
A
= 25°C
5
Figure 21. Integral Nonlinearity Error vs. Reference Voltage
0
0 100 200 300 400 500 600
1.2
1.0
0.8
0.6
0.4
0.2
01121-025
HOURS OF OPERATION AT 150°C
NOMINAL CHANGE IN VOLTAGE (mV)
AD7392
SAMPLE SIZE = 50
CODE = 0xFFF
CODE = 0x000
Figure 22. Long-Term Drift Accelerated by Burn-In