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参数资料
| 型号： | AD7686CRMZRL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 17/28页 |
| 文件大小： | 0K |
| 描述： | IC ADC 16BIT 500KSPS 10MSOP |
| 标准包装： | 1,000 |
| 系列： | PulSAR® |
| 位数： | 16 |
| 采样率（每秒）： | 500k |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 21.5mW |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-MSOP |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 1 个伪差分，单极 |
| 配用： | EVAL-AD7686CBZ-ND - BOARD EVALUATION FOR AD7686 |
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AD7686
Rev. B | Page 24 of 28
TRUE 16-BIT ISOLATED APPLICATION EXAMPLE
In applications where high accuracy and isolation are required,
such as power monitoring, motor control, and some medical
equipment, the circuit shown in Figure 47, using the AD7686
and the ADuM1402C digital isolator, provides a compact and
high performance solution.
Multiple AD7686 devices are daisy-chained to reduce the
number of signals to isolate. Note that the SCKOUT, which is a
readback of the AD7686 clock, has a very short skew with the
DATA signal.
This skew is the channel-to-channel matching propagation
delay of the digital isolator (tPSKCD). This allows running the
serial interface at the maximum speed of the digital isolator
(45 Mbps for the ADuM1402C), which would have been
otherwise limited by the cascade of the propagation delays of
the digital isolator. For instance, four AD7686 devices running
at 330 kSPS can be chained together.
The complete analog chain runs on a single 5 V supply using
the ADR391 low dropout reference voltage and the rail-to-rail
CMOS AD8618 amplifier while offering true bipolar input range.
IN– GND
REF VDD VIO
SDO
VDD1, VE1
GND1
VDD2, VE2
GND2
SCK
CNV
SDI
AD7686
1/4 AD8618
5V
1k
2V REF
±10V INPUT
5V REF
5V
10F
100nF
IN– GND
REF VDD VIO
SDO
SCK
CNV
SDI
AD7686
1/4 AD8618
5V
1k
2V REF
±10V INPUT
5V REF
5V
10F
100nF
IN– GND
REF VDD VIO
SDO
SCK
CNV
SDI
AD7686
1/4 AD8618
5V
1k
2V REF
±10V INPUT
5V REF
5V
10F
100nF
IN–
IN+
GND
REF VDD VIO
SDO
SCK
CNV
SDI
AD7686
1/4 AD8618
5V
1k
4k
2V REF
5V
1k
100nF
10
μF
5V REF
2V REF
4k
±10V INPUT
5V REF
5V
10F
100nF
VIA
VIB
VOC
VOD
VOA
VOB
VIC
VID
2.7V TO 5V
100nF
DATA
SCKOUT
SCKIN
CONVERT
ADuM1402C
OUT
GND
IN
ADR391
02
96
9-
0
48
Figure 47. A True 16-Bit Isolated Simultaneous Sampling Acquisition System
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7686CRMZRL71 | 制造商:AD 制造商全称:Analog Devices 功能描述:16-Bit, 500 kSPS PulSAR ADC in MSOP/QFN |
| AD7686XRM-U4 | 制造商:Analog Devices 功能描述:500 KSPS 16-BIT PULSAR? A/D CONVERTER IN ?SOIC/CSP - Rail/Tube |
| AD7686XRM-U5 | 制造商:Analog Devices 功能描述:500 KSPS 16-BIT PULSAR? A/D CONVERTER IN ?SOIC/CSP - Bulk |
| AD7687 | 制造商:AD 制造商全称:Analog Devices 功能描述:3mW, 100kSPS, 14-Bit ADC in 6-Lead SOT-23 |
| AD76871 | 制造商:AD 制造商全称:Analog Devices 功能描述:18-Bit, 2 MSPS PulSAR 15 mW ADC in LFCSP (QFN) |
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