參數(shù)資料
型號(hào): EVAL-AD7993EBZ
廠商: Analog Devices Inc
文件頁數(shù): 4/32頁
文件大?。?/td> 0K
描述: BOARD EVAL FOR AD7993
標(biāo)準(zhǔn)包裝: 1
ADC 的數(shù)量: 1
位數(shù): 10
采樣率(每秒): 188k
數(shù)據(jù)接口: 串行
輸入范圍: 0 ~ 5.5 V
在以下條件下的電源(標(biāo)準(zhǔn)): 7.7mW @ 188kSPS,5.5 V
工作溫度: -40°C ~ 125°C
已用 IC / 零件: AD7993
已供物品: 板,纜線,CD
AD7993/AD7994
Rev. 0 | Page 12 of 32
TYPICAL PERFORMANCE CHARACTERISTICS
–120
–100
–80
–60
–40
–20
0
S
INAD
(dB)
20
40
060
FREQUENCY (kHz)
03473-0-004
FS = 121kSPS
FSCL = 3.4MHz
FIN = 10kHz
SNR = 71.84dB
SINAD = 71.68dB
THD = 86.18dB
SFDR = –88.70dB
Figure 4. AD7994 Dynamic Performance with 5 V Supply and
2.5 V Reference, 121 kSPS, Mode 1
–110
–90
–70
–50
–30
–10
S
INAD
(dB)
10
40
060
40
45
50
60
70
75
S
INAD
(dB)
1
1000
FREQUENCY (kHz)
03473-0-007
100
10
VDD = 5.5V
VDD = 4.5V
VDD = 3V
VDD = 2.7V
VDD = 3.3V
VDD = 5V
65
55
FREQUENCY (kHz)
03473-0-005
20
30
50
FS = 121kSPS
FSCL = 3.4MHz
FIN = 10kHz
SINAD = 61.63dB
THD = 91.82dB
SFDR = –94.95dB
Figure 5. AD7993 Dynamic Performance with 5 V Supply and
2.5 V Reference, 121 kSPS, Mode 1
20
40
70
80
90
100
P
S
RR
(dB)
10
1000
SUPPLY RIPPLE FREQUENCY (kHz)
03473-0-006
100
VDD = 3V
VDD = 5V
50
30
60
VDD = 3V/5V
200mV p-p SINE WAVE
ON VDD
2nF CAPACITOR ON VDD
Figure 6. PSRR vs. Supply Ripple Frequency
Figure 7. AD7994 SINAD vs. Analog Input Frequency for
Various Supply Voltages, 3.4 MHz fSCL, 136 kSPS
–1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
1.0
INL
E
RROR
(LS
B
)
2000
1500
500
1000
0
2500
3000
3500
4000
CODE
03473-0-008
Figure 8. AD7994 Typical INL, VDD = 5.5 V, Mode 1, 3.4 MHz fSCL, 121 kSPS
–1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
1.0
DNL
E
RROR
(LS
B
)
2000
1500
500
1000
0
2500
3000
3500
4000
CODE
03473-0-009
Figure 9. AD7994 Typical DNL, VDD = 5.5 V, Mode 1, 3.4 MHz fSCL, 121 kSPS
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