AD7949(RevA) 데이터 시트보기 (PDF) - Analog Devices
부품명
상세내역
일치하는 목록
AD7949 Datasheet PDF : 28 Pages
| |||
AD7949
TYPICAL PERFORMANCE CHARACTERISTICS
VDD = 2.5 V to 5.5 V, VREF = 2.5 V to 5 V, VIO = 2.3 V to VDD
1.0
0.5
0
–0.5
–1.0
0
4,096
8,192
CODES
12,288
16,384
Figure 5. Integral Nonlinearity vs. Code, VREF = VDD = 5 V
300k
250k
261,120
VREF = VDD = 5V
200k
150k
100k
50k
0
0
1FFC
0
1FFD
0
1FFE
1
0
1FFF 2000
CODE IN HEX
0
2001
0
2002
0
2003
Figure 6. Histogram of a DC Input at Code Center
0
VREF = VDD = 5V
–20
fS= 250kSPS
fIN = 19.9kHz
SNR = 85.3dB
–40
SINAD = 85.2dB
THD = –100dB
–60
SFDR = 103dB
SECOND HARMONIC = –110dB
THIRD HARMONIC = –103dB
–80
–100
–120
–140
–160
0
25
50
75
100
125
FREQUENCY (kHz)
Figure 7. 20 kHz FFT, VREF = VDD = 5 V
1.0
0.5
0
–0.5
–1.0
0
4,096
8,192
CODES
12,288
16,384
Figure 8. Differential Nonlinearity vs. Code, VREF = VDD = 5 V
300k
250k
259,473
VREF = VDD = 2.5V
200k
150k
100k
50k
0
0
0 955
693
0
1FFC 1FFD 1FFE 1FFF 2000 2001
CODE IN HEX
0
2002
0
2003
0
2004
Figure 9. Histogram of a DC Input at Code Center
0
VREF = VDD = 2.5V
–20
fs= 200kSPS
fIN = 19.9kHz
–40
SNR = 84.2dB
SINAD = 82.4dB
THD = –84dB
–60
SFDR = 85dB
SECOND HARMONIC = –100dB
–80
THIRD HARMONIC = –85dB
–100
–120
–140
–160
–180
0
25
50
75
100
FREQUENCY (kHz)
Figure 10. 20 kHz FFT, VREF = VDD = 2.5 V
Rev. A | Page 10 of 28
Share Link: 