AD7849
Typical Performance Curves
7
6
5
V
DD
= +15V
V
SS
= –15V
V
REF+
= 1V rms
V
REF–
= 0V
C1 FREQ
9.9942kHz
V
REF+
1
C1 RMS
728mV
V
OUT
– mV pk-pk
4
3
2
V
OUT
4
C4 RMS
556µV
1
0
10
2
CH1
CH4
1.00V
1.00mV
M 20.0µs CH1
–300mV
10
3
10
4
FREQUENCY – Hz
10
5
10
6
Figure 1a. AC Feedthrough
Figure 1b. AC Feedthrough vs. Frequency
SYNC
1
LDAC
1
SDIN 2
SDIN 2
C4 AREA
247.964nV
S
V
OUT
4
V
OUT
4
CH1
5.00V
CH2 5.00V
CH4 200mV
M 1.00µs
CH1
3.7V
CH1
5.00V
CH2 5.00V
CH4 50.0mV
M 5.00µs
CH1
2.3V
Figure 2a. Digital-to-Analog Glitch Impulse Without
Internal Deglitcher
Figure 2b. Digital-to-Analog Glitch Impulse with
Internal Deglitcher
22
20
18
16
V
OUT
– V pk-pk
C1 Pk-Pk
10.4V
14
12
10
8
6
4
2
10
2
V
DD
= +15V
V
SS
= –15V
V
REF+
=
±5V
SINE WAVE
V
REF–
= 0V
GAIN = +2
V
REF+
1
C2 Pk-Pk
20.8V
C2 RISE
2.79230µs
C2 FALL
3.20385µs
V
OUT
2
10
3
10
4
FREQUENCY – Hz
10
5
10
6
CH1
10.0V
CH2 20.0V
M 2.5µs
CH1
–400mV
Figure 3. Large Signal Frequency Response
Figure 4. Pulse Response (Large Signal)
–6–
REV. B
AD [ ANALOG DEVICES ]
