参数资料
型号: EVAL-AD7992EBZ
厂商: Analog Devices Inc
文件页数: 3/29页
文件大小: 0K
描述: BOARD EVALUATION FOR AD7992
标准包装: 1
ADC 的数量: 1
位数: 12
采样率(每秒): 188k
数据接口: I²C,串行
输入范围: 0 ~ VREF
在以下条件下的电源(标准): 7.7mW @ 188kSPS,5.5 V
工作温度: -40°C ~ 125°C
已用 IC / 零件: AD7992
已供物品: 板,线缆
AD7992
Rev. 0 | Page 10 of 28
TYPICAL PERFORMANCE CHARACTERISTICS
–120
–100
–80
–60
–40
–20
0
S
INAD
(dB)
20
40
060
60
62
64
66
68
70
72
74
76
1
10
100
INPUT FREQUENCY kHz
S
INAD
(dB)
VDD = 5.5V
VDD = 5.0V
VDD = 4.5V
VDD = 2.7V
VDD = 3.0V
VDD = 3.3V
VREF = VDD
03263-0-020
FREQUENCY (kHz)
03263-0-024
FS = 121kSPS
FSCL = 3.4MHz
FIN = 10kHz
SNR = 71.84dB
SINAD = 71.68dB
THD = –86.18dB
SFDR = –88.70dB
Figure 4. Dynamic Performance with 5 V Supply and 2.5 V Reference,
121 kSPS, Mode 1, Single-Channel Mode
–120
–100
–80
–60
–40
–20
0
FREQUENCY (kHz)
S
INAD
(dB)
SNR = 73.23dB
SINAD = 73.10dB
THD = –88.59dB
SFDR = –90.46dB
FS = 121kSPS
FSCL = 3.4MHz
FIN = 10kHz
060
10
20
30
40
50
03263-0-021
Figure 5. Dynamic Performance with 5.5 V Supply and 5.5 V Reference,
121 KSPS, Mode 1, Dual-Channel Mode
20
40
70
80
90
100
P
S
RR
(dB)
10
1000
SUPPLY-RIPPLE FREQUENCY (kHz)
03263-0-025
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, Single-Channel Mode Only
Figure 7. SINAD vs. Analog Input Frequency for Various Supply Voltages at
136 kSPS with 3.4 MHz fSCL
–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
03263-0-026
Figure 8. Typical INL, VDD = 5.5 V, Reference = 2.5 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
03263-0-027
Figure 9. Typical DNL, VDD = 5.5 V, Reference = 2.5 V Mode 1,
3.4 MHz fSCL , 121 kSPS
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