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參數(shù)資料
| 型號(hào)： | AD7658YSTZ-REEL |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 7/32頁(yè) |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT 6CH 250KSPS 64LQFP |
| 標(biāo)準(zhǔn)包裝： | 1,500 |
| 位數(shù)： | 12 |
| 采樣率（每秒）： | 250k |
| 數(shù)據(jù)接口： | 串行，并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 6 |
| 功率耗散（最大）： | 143mW |
| 電壓電源： | 模擬和數(shù)字，雙 ± |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 64-LQFP |
| 供應(yīng)商設(shè)備封裝： | 64-LQFP（10x10） |
| 包裝： | 帶卷 (TR) |
| 輸入數(shù)目和類型： | 6 個(gè)單端，雙極 |
| 配用： | EVAL-AD7658CBZ-ND - BOARD EVAL FOR AD7658 |
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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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