Datasheet

AD7849
Rev. C | Page 8 of 20
TYPICAL PERFORMANCE CHARACTERISTICS
FREQUENCY (Hz)
7
0
100 1M1k
V
OUT
(
m
Vp-p)
10k 100k
6
5
4
3
2
1
V
DD
=+15V
V
SS
= –15V
V
REF+
=1Vrms
V
REF–
=0V
01008-007
V
REF+
1
V
OUT
4
C1 FREQ
9.9942kHz
C1 RMS
728mV
C4 RMS
556µV
CH1 1.00V
CH4 1.00mV
M 20.0µs CH1 –300mV
01008-004
Figure 3. AC Feedthrough
Figure 6. AC Feedthrough vs. Frequency
S
YNC
SDIN
V
OUT
1
2
4
C4 AREA
247.964n
V
S
CH2 5.00V
CH4 200mV
M 1.00µs CH1 3.7V
CH1 5.00V
01008-005
1
4
2
LDAC
SDIN
V
OUT
CH4 50.0mV
CH2 5.00V M 5.00µs CH1 –2.3VCH1 5.00V
01008-008
Figure 4. Digital-to-Analog Glitch Impulse Without Internal Deglitcher
Figure 7. Digital-to-Analog Glitch Impulse With Internal Deglitcher
FREQUENCY (Hz)
100 1M1k 10k 100k
22
2
V
OUT
(V p-p)
20
18
16
14
12
10
8
6
4
V
DD
=+15V
V
SS
=–15V
V
REF+
=±5SINEWAVE
V
REF–
=0V
GAIN = 2
01008-006
1
2
V
OUT
V
REF+
C1 p-p
10.4V
C2 p-p
20.8V
C2 RISE
2.79230µs
C2 FALL
3.20385µs
CH2 20.0V M 2.5µs CH1 –400mV
CH1 10.0V
01008-009
Figure 8. Pulse Response (Large Signal)
Figure 5. Large Signal Frequency Response