参数资料
型号: AD7693BRMZ
厂商: Analog Devices Inc
文件页数: 10/24页
文件大小: 0K
描述: IC ADC 16BIT 500KSPS 10-MSOP
标准包装: 1
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: 管件
输入数目和类型: 1 个差分,双极
产品目录页面: 778 (CN2011-ZH PDF)
配用: EVAL-AD7693CBZ-ND - BOARD EVALUATION FOR AD7693
AD7693
Rev. A | Page 18 of 24
CS MODE, 3-WIRE WITH BUSY INDICATOR
This mode is usually used when a single AD7693 is connected
to an SPI-compatible digital host having an interrupt input.
The connection diagram is shown in Figure 36, and the
corresponding timing is given in Figure 37.
With SDI tied to VIO, a rising edge on CNV initiates a
conversion, selects the CS mode, and forces SDO to high
impedance. SDO is maintained in high impedance until the
completion of the conversion irrespective of the state of CNV.
Prior to the minimum conversion time, CNV can be used to
select other SPI devices, such as analog multiplexers, but CNV
must be returned low before the minimum conversion time
elapses and then held low for the maximum possible conversion
time to guarantee the generation of the busy signal indicator.
When the conversion is complete, SDO goes from high
impedance to low impedance. With a pull-up on the SDO line,
this transition can be used as an interrupt signal to initiate the
data reading controlled by the digital host. The AD7693 then
enters the acquisition phase and powers down. The data bits are
clocked out, MSB first, by subsequent SCK falling edges. 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, provided it has an
acceptable hold time. After the optional 17th SCK falling edge or
when CNV goes high (whichever occurs first), SDO returns to
high impedance.
If multiple AD7693s are selected at the same time, the SDO
output pin handles this contention without damage or induced
latch-up. Meanwhile, it is recommended to keep this contention
as short as possible to limit extra power dissipation.
DATA IN
IRQ
CLK
CONVERT
VIO
CNV
SCK
SDO
SDI
VIO
AD7693
0
6
394
-03
5
DIGITAL HOST
Figure 36. CS Mode, 3-Wire with Busy Indicator
Connection Diagram (SDI High)
SDO
D15
D14
D1
D0
tDIS
SCK
12
3
15
16
17
tSCK
tSCKL
tSCKH
tHSDO
tDSDO
CNV
CONVERSION
ACQUISITION
tCONV
tCYC
ACQUISITION
SDI = 1
tCNVH
tACQ
0
63
94
-03
6
Figure 37. CS Mode, 3-Wire with Busy Indicator Serial Interface Timing (SDI High)
相关PDF资料
PDF描述
VI-J1L-MW-F2 CONVERTER MOD DC/DC 28V 100W
LTC1419CSW#PBF IC A/D CONV 14BIT SAMPLNG 28SOIC
VI-B1L-MW CONVERTER MOD DC/DC 28V 100W
VE-B1L-MX-F4 CONVERTER MOD DC/DC 28V 75W
CS5381-KZZ IC ADC AUD 120DB 192KHZ 24-TSSOP
相关代理商/技术参数
参数描述
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
AD7694ARM 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述:
AD7694ARMRL7 制造商:AD 制造商全称:Analog Devices 功能描述:16-Bit, 250 kSPS PulSAR ADC in MSOP