參數(shù)資料
型號(hào): EVAL-AD7658CBZ
廠(chǎng)商: Analog Devices Inc
文件頁(yè)數(shù): 7/32頁(yè)
文件大?。?/td> 0K
描述: BOARD EVAL FOR AD7658
標(biāo)準(zhǔn)包裝: 1
系列: iCMOS®
ADC 的數(shù)量: 6
位數(shù): 12
采樣率(每秒): 250k
數(shù)據(jù)接口: 串行,并聯(lián)
輸入范圍: 6 Vpp
在以下條件下的電源(標(biāo)準(zhǔn)): 143mW @ 250kSPS
工作溫度: -40°C ~ 85°C
已用 IC / 零件: AD7658
已供物品:
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Data Sheet
AD7656/AD7657/AD7658
Rev. D | Page 15 of 32
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
500
1000
1500
2000
2500
3000
3500
4095
05020-
033
IN
L
(
LS
B
)
CODE
AVCC/DVCC/VDRIVE = +5V
VDD/VSS = ±12V
fSAMPLE = 250kSPS
2 × VREF RANGE
Figure 10. AD7658 Typical INL
05020-
032
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
500
1000
1500
2000
2500
3000
3500
4095
DNL
(
L
S
B)
CODE
AVCC/DVCC/VDRIVE = +5V
VDD/VSS = ±12V
fSAMPLE = 250kSPS
2 × VREF RANGE
Figure 11. AD7658 Typical DNL
90
60
10
1000
05020-
023
ANALOG INPUT FREQUENCY (kHz)
S
INAD
(
d
B)
100
85
80
75
70
65
AVCC/DVCC/VDRIVE = +5.25V
VDD/VSS = ±16.5V
±10V RANGE
AVCC/DVCC/
VDRIVE = +5V
VDD/VSS = ±12V
±5V RANGE
AVCC/DVCC/
VDRIVE = +5V
VDD/VSS = ±5.25V
±5V RANGE
AVCC/DVCC/
VDRIVE = +4.75 V
VDD/VSS = ±10V
±10V RANGE
fSAMPLE = 250kSPS
INTERNAL REFERENCE
TA = 25°C
Figure 12. AD7656 SINAD vs. Input Frequency
–60
–120
10
1000
05020-
022
ANALOG INPUT FREQUENCY (kHz)
T
HD
(
d
B)
100
–70
–80
–90
–100
–110
AVCC/DVCC/
VDRIVE = +5V
VDD/VSS = ±12V
±5V RANGE
AVCC/DVCC/
VDRIVE = +5.25V
VDD/VSS = ±16.5V
±10V RANGE
fSAMPLE = 250kSPS
INTERNAL REFERENCE
TA = 25°C
AVCC/DVCC/VDRIVE = +5V
VDD/VSS = ±5.25V
±5V RANGE
AVCC/DVCC/
VDRIVE = +4.75V
VDD/VSS = ±10V
±10V RANGE
Figure 13. AD7656 THD vs. Input Frequency
–60
–120
10
100
05020-
026
ANALOG INPUT FREQUENCY (kHz)
T
HD
(
d
B)
–70
–80
–90
–100
–110
VDD/VSS = ±16.5V
AVCC/DVCC/VDRIVE = +5.25V
TA = 25°C
INTERNAL REFERENCE
±4 × VREF RANGE
RSOURCE = 1000
RSOURCE = 10
RSOURCE = 100
RSOURCE = 50
RSOURCE = 220
Figure 14. AD7656 THD vs. Input Frequency for Various Source Impedances,
±4 × VREF Range
–40
–120
10
100
05020-
027
ANALOG INPUT FREQUENCY (kHz)
T
HD
(
d
B)
–50
–60
–70
–80
–90
–100
–110
VDD/VSS = ±12V
AVCC/DVCC/VDRIVE = +5V
TA = 25°C
INTERNAL REFERENCE
±2 × VREF RANGE
RSOURCE = 1000
RSOURCE = 100
RSOURCE = 50
RSOURCE = 220
RSOURCE = 10
Figure 15. AD7656 THD vs. Input Frequency for Various Source Impedances,
±2 × VREF Range
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