参数资料
型号: AD7612BSTZ-RL
厂商: Analog Devices Inc
文件页数: 24/32页
文件大小: 0K
描述: IC ADC 16BIT 750KSPS SAR 48-LQFP
标准包装: 2,000
系列: PulSAR®
位数: 16
采样率(每秒): 750k
数据接口: 串行,并联
转换器数目: 1
功率耗散(最大): 230mW
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-LQFP
供应商设备封装: 48-LQFP(7x7)
包装: 带卷 (TR)
输入数目和类型: 1 个差分,双极
配用: EVAL-AD7612CBZ-ND - BOARD EVALUATION FOR AD7612
AD7612
Data Sheet
Rev. A | Page 30 of 32
SCIN
SCCLK
WARP
START
TEN
123
67
BUSY
HW/SW = 0
INVSCLK = 0
CNVST
SCCS
t8
t36
t35
t37
4
PD
5
BIPOLAR
IMPULSE
OB/2C
X
89
SER/PAR = 1
BIP = 0 OR 1
TEN = 0 OR 1
IMPULSE = 0 OR 1
WARP = 0 OR 1
PD = 0
t33
t34
t31
X
t31
06
26
5-
0
45
Figure 45. Serial Configuration Port Timing
MICROPROCESSOR INTERFACING
The AD7612 is ideally suited for traditional dc measurement
applications supporting a microprocessor, and ac signal processing
applications interfacing to a digital signal processor. The AD7612
is designed to interface with a parallel 8-bit or 16-bit wide
interface, or with a general-purpose serial port or I/O ports on a
microcontroller. A variety of external buffers can be used with
the AD7612 to prevent digital noise from coupling into the ADC.
SPI Interface
The AD7612 is compatible with SPI and QSPI digital hosts and
DSPs such as Blackfin ADSP-BF53x and ADSP-218x/ADSP-219x.
Figure 46 shows an interface diagram between the AD7612 and
the SPI-equipped ADSP-219x. To accommodate the slower speed
of the DSP, the AD7612 acts as a slave device, and data must be
read after conversion. This mode also allows the daisy-chain
feature. The convert command could be initiated in response to
an internal timer interrupt.
The reading process can be initiated in response to the end-of-
conversion signal (BUSY going low) using an interrupt line of
the DSP. The serial peripheral interface (SPI) on the ADSP-219x
is configured for master mode (MSTR) = 1, clock polarity bit
(CPOL) = 0, clock phase bit (CPHA) = 1, and SPI interrupt enable
(TIMOD) = 0 by writing to the SPI control register (SPICLTx).
It should be noted that to meet all timing requirements, the SPI
clock should be limited to 17 Mbps allowing it to read an ADC
result in less than 1 μs. When a higher sampling rate is desired,
use one of the parallel interface modes.
BUSY
CS
SDOUT
SCLK
CNVST
AD76121
PFx
SPIxSEL (PFx)
MISOx
SCKx
PFx OR TFSx
ADSP-219x1
1ADDITIONAL PINS OMITTED FOR CLARITY.
DVDD
SER/PAR
EXT/INT
RD
INVSCLK
06
26
5-
0
46
Figure 46. Interfacing the AD7612 to SPI Interface
相关PDF资料
PDF描述
AD7621ASTZRL IC ADC 16BIT 2MSPS DIFF 48LQFP
AD7622BCPZ IC ADC 16BIT DIFFERENTL 48-LFCSP
AD7623ACPZ IC ADC 16BIT 1.33MSPS 48LFCSP
AD7625BCPZRL7 IC ADC 16BIT 6MSPS SAR 32LFCSP
AD7626BCPZ IC ADC 16BIT 10MSPS DIFF 32LFCSP
相关代理商/技术参数
参数描述
AD7616BSTZ 功能描述:16 Bit Analog to Digital Converter 16 Input 2 SAR 80-LQFP (14x14) 制造商:analog devices inc. 系列:- 包装:托盘 零件状态:在售 位数:16 采样率(每秒):1M 输入数:16 输入类型:差分 数据接口:SPI,并联,DSP 配置:MUX-S/H-ADC 无线电 - S/H:ADC:1:1 A/D 转换器数:2 架构:SAR 参考类型:外部, 内部 电压 - 电源,模拟:5V 电压 - 电源,数字:2.3 V ~ 3.6 V 特性:同步采样 工作温度:-40°C ~ 125°C 封装/外壳:80-LQFP 供应商器件封装:80-LQFP(14x14) 标准包装:1
AD7616BSTZ-RL 功能描述:16 Bit Analog to Digital Converter 16 Input 2 SAR 80-LQFP (14x14) 制造商:analog devices inc. 系列:- 包装:剪切带(CT) 零件状态:在售 位数:16 采样率(每秒):1M 输入数:16 输入类型:差分 数据接口:SPI,并联,DSP 配置:MUX-S/H-ADC 无线电 - S/H:ADC:1:1 A/D 转换器数:2 架构:SAR 参考类型:外部, 内部 电压 - 电源,模拟:5V 电压 - 电源,数字:2.3 V ~ 3.6 V 特性:同步采样 工作温度:-40°C ~ 125°C 封装/外壳:80-LQFP 供应商器件封装:80-LQFP(14x14) 标准包装:1
AD7616-PBSTZ 功能描述:IC DAS ADC DUAL 16BIT 16CH 80LQF 制造商:analog devices inc. 系列:- 包装:托盘 零件状态:在售 位数:16 采样率(每秒):1M 输入数:16 输入类型:单端 数据接口:并联 配置:MUX-ADC 无线电 - S/H:ADC:- A/D 转换器数:2 架构:SAR 参考类型:外部, 内部 电压 - 电源,模拟:4.75 V ~ 5.25 V 电压 - 电源,数字:2.3 V ~ 3.6 V 特性:同步采样 工作温度:-40°C ~ 125°C 封装/外壳:80-LQFP 供应商器件封装:80-LQFP(14x14) 标准包装:1
AD7616-PBSTZ-RL 功能描述:100KSPS 16 CH MUXED DUAL 16B SAR 制造商:analog devices inc. 系列:- 包装:带卷(TR) 零件状态:在售 位数:16 采样率(每秒):1M 输入数:16 输入类型:单端 数据接口:并联 配置:MUX-ADC 无线电 - S/H:ADC:- A/D 转换器数:2 架构:SAR 参考类型:外部, 内部 电压 - 电源,模拟:4.75 V ~ 5.25 V 电压 - 电源,数字:2.3 V ~ 3.6 V 特性:同步采样 工作温度:-40°C ~ 125°C 封装/外壳:80-LQFP 供应商器件封装:80-LQFP(14x14) 标准包装:1,000
AD7617BSTZ 功能描述:1MSPS 16 CH MUXED DUAL 14B SAR A 制造商:analog devices inc. 系列:- 包装:托盘 零件状态:在售 位数:14 采样率(每秒):1M 输入数:16 输入类型:单端 数据接口:DSP,MICROWIRE?,并联,QSPI?,串行,SPI? 配置:MUX-ADC 无线电 - S/H:ADC:- A/D 转换器数:2 架构:SAR 参考类型:外部, 内部 电压 - 电源,模拟:4.75 V ~ 5.5 V 电压 - 电源,数字:2.3 V ~ 3.6 V 特性:同步采样 工作温度:-40°C ~ 125°C 封装/外壳:80-LQFP 供应商器件封装:80-LQFP(14x14) 标准包装:1