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| 型号： | AD7693BCPZRL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 14/24页 |
| 文件大小： | 0K |
| 描述： | IC ADC 16BIT 500KSPS 10LFCSP |
| 标准包装： | 5,000 |
| 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-WFDFN 裸露焊盘，CSP |
| 供应商设备封装： | 10-LFCSP-WD（3x3） |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 1 个差分，双极 |
| 配用： | EVAL-AD7693CBZ-ND - BOARD EVALUATION FOR AD7693 |
AD7693
Rev. A | Page 21 of 24
CHAIN MODE WITHOUT BUSY INDICATOR
This mode can be used to daisy-chain multiple AD7693s on
a 3-wire serial interface. This feature is useful for reducing
component count and wiring connections, for example, in
isolated multiconverter applications or for systems with a
limited interfacing capacity. Data readback is analogous to
clocking a shift register.
A connection diagram example using two AD7693s is shown in
When SDI and CNV are low, SDO is driven low. With SCK low,
a rising edge on CNV initiates a conversion, selects the chain
mode, and disables the busy indicator. In this mode, CNV is
held high during the conversion phase and the subsequent data
readback. When the conversion is complete, the MSB is output
onto SDO and the AD7693 enters the acquisition phase and
powers down. The remaining data bits stored in the internal
shift register are clocked by subsequent SCK falling edges. For
each ADC, SDI feeds the input of the internal shift register and
is clocked by the SCK falling edge. Each ADC in the chain
outputs its data MSB first, and 16 × N clocks are required to
read back the N ADCs. The data is valid on both SCK edges.
Although the rising edge can be used to capture the data, a
digital host using the SCK falling edge will allow a faster
reading rate and consequently more AD7693s in the chain,
provided the digital host has an acceptable hold time. The
maximum conversion rate can be reduced due to the total
readback time.
CLK
CONVERT
DATA IN
CNV
SCK
SDO
SDI
CNV
SCK
SDO
SDI
AD7693
B
AD7693
A
0
63
94
-0
41
DIGITAL HOST
Figure 42. Chain Mode Without Busy Indicator Connection Diagram
SDOA = SDIB
DA15
DA14
DA13
SCK
1
2
3
30
31
32
tSSDISCK
tHSDISCK
tEN
CONVERSION
ACQUISITION
tCONV
tCYC
tACQ
ACQUISITION
CNV
DA1
14
15
tSCK
tSCKL
tSCKH
DA0
17
18
16
SDIA = 0
SDOB
DB15
DB14
DB13
DA1
DB1DB0DA15
DA14
tHSDO
tDSDO
tSSCKCNV
tHSCKCNV
DA0
06
39
4-
0
42
Figure 43. Chain Mode Without Busy Indicator Serial Interface Timing
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相关代理商/技术参数 |
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|---|---|
| AD7693BCPZRL7 | 功能描述:IC ADC 16BIT 500KSPS 10-LFCSP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:PulSAR® 其它有关文件:TSA1204 View All Specifications 标准包装:1 系列:- 位数:12 采样率（每秒）:20M 数据接口:并联 转换器数目:2 功率耗散（最大）:155mW 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:48-TQFP 供应商设备封装:48-TQFP（7x7） 包装:Digi-Reel® 输入数目和类型:4 个单端，单极；2 个差分，单极 产品目录页面:1156 (CN2011-ZH PDF) 其它名称:497-5435-6 |
| AD7693BRMZ | 功能描述:IC ADC 16BIT 500KSPS 10-MSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:PulSAR® 标准包装:1 系列:microPOWER™ 位数:8 采样率（每秒）:1M 数据接口:串行，SPI? 转换器数目:1 功率耗散（最大）:- 电压电源:模拟和数字 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘 供应商设备封装:24-VQFN 裸露焊盘（4x4） 包装:Digi-Reel® 输入数目和类型:8 个单端，单极 产品目录页面:892 (CN2011-ZH PDF) 其它名称:296-25851-6 |
| AD7693BRMZRL7 | 功能描述:IC ADC 16BIT 500KSPS 10-MSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:PulSAR® 标准包装:1 系列:- 位数:14 采样率（每秒）:83k 数据接口:串行，并联 转换器数目:1 功率耗散（最大）:95mW 电压电源:双 ± 工作温度:0°C ~ 70°C 安装类型:通孔 封装/外壳:28-DIP（0.600"，15.24mm） 供应商设备封装:28-PDIP 包装:管件 输入数目和类型:1 个单端，双极 |
| AD7694 | 制造商:AD 制造商全称:Analog Devices 功能描述:16-Bit Lower Power |
| AD7694_05 | 制造商:AD 制造商全称:Analog Devices 功能描述:16-Bit, 250 kSPS PulSAR ADC in MSOP |
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