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参数资料
| 型号： | AD7810YRZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 2/11页 |
| 文件大小： | 0K |
| 描述： | IC ADC 10BIT SRL HS LP 8SOIC |
| 标准包装： | 98 |
| 位数： | 10 |
| 采样率（每秒）： | 350k |
| 数据接口： | 串行 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 17.5mW |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
| 输入数目和类型： | 2 个伪差分，单极 |
AD7810
–10–
REV. B
MICROPROCESSOR INTERFACING
The serial interface on the AD7810 allows the parts to be directly
connected to a range of many different microprocessors. This
section explains how to interface the AD7810 with some of the
more common microcontroller serial interface protocols.
AD7810 to PIC16C6x/7x
The PIC16C6x Synchronous Serial Port (SSP) is configured
as an SPI Master with the Clock Polarity Bit = 0. This is done
by writing to the Synchronous Serial Port Control Register
(SSPCON). See PIC16/17 Microcontroller User Manual. Figure
17 shows the hardware connections needed to interface to the
PIC16/PIC17. In this example I/O port RA1 is being used to
pulse CONVST and enable the serial port of the AD7810. This
microcontroller transfers only eight bits of data during each
serial transfer operation, therefore, two consecutive read opera-
tions are needed.
SCLK
DOUT
SCK/RC3
SDO/RC5
RA1
AD7810*
PIC16C6x/7x*
CONVST
*ADDITIONAL PINS OMITTED FOR CLARITY
Figure 17. Interfacing to the PIC16/PIC17
AD7810 to MC68HC11
The Serial Peripheral Interface (SPI) on the MC68HC11 is
configured for Master Mode (MSTR = 0), Clock Polarity Bit
(CPOL) = 0, and the Clock Phase Bit (CPHA) = 1. The SPI is
configured by writing to the SPI Control Register (SPCR)—see
68HC11 User Manual. A connection diagram is shown in
Figure 18.
SCLK
DOUT
SCLK/PD4
MISO/PD2
PA0
AD7810*
MC68HC11*
CONVST
*ADDITIONAL PINS OMITTED FOR CLARITY
Figure 18. Interfacing to the MC68HC11
AD7810 to 8051
The AD7810 requires a clock synchronized to the serial data;
therefore, the 8051 serial interface must be operated in Mode
0. In this mode serial data enters and exits through RXD, and a
serial clock is output on TXD (half duplex). Figure 19 shows
how the 8051 is connected to the AD7810. However, because
the AD7810 shifts data out on the rising edge of the serial
clock, the serial clock must be inverted.
SCLK
DOUT
TXD
RXD
P1.1
AD7810*
8051*
CONVST
*ADDITIONAL PINS OMITTED FOR CLARITY
Figure 19. Interfacing to the 8051 Serial Port
It is possible to implement a serial interface using the data ports
on the 8051 (or any microcontroller). This would allow direct
interfacing between the AD7810 and 8051 to be implemented.
The technique involves “bit banging” an I/O port (e.g., P1.0)
to generate a serial clock and using another I/O port (e.g., P1.1)
to read in data, see Figure 20.
SCLK
DOUT
P1.0
P1.1
P1.2
AD7810*
8051*
CONVST
*ADDITIONAL PINS OMITTED FOR CLARITY
Figure 20. Interfacing to the 8051 Using I/O Ports
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7810YRZ | 制造商:Analog Devices 功能描述:IC, ADC, 10BIT, 350KSPS, SOIC-8 |
| AD7810YRZ-REEL | 功能描述:IC ADC 10BIT SRL HS LP 8SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:2,500 系列:- 位数:16 采样率（每秒）:15 数据接口:MICROWIRE?，串行，SPI? 转换器数目:1 功率耗散（最大）:480µW 电压电源:单电源 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:38-WFQFN 裸露焊盘 供应商设备封装:38-QFN（5x7） 包装:带卷 (TR) 输入数目和类型:16 个单端，双极；8 个差分，双极 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494 |
| AD7810YRZ-REEL7 | 功能描述:IC ADC 10BIT SRL HS LP 8SOIC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:2,500 系列:- 位数:16 采样率（每秒）:15 数据接口:MICROWIRE?，串行，SPI? 转换器数目:1 功率耗散（最大）:480µW 电压电源:单电源 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:38-WFQFN 裸露焊盘 供应商设备封装:38-QFN（5x7） 包装:带卷 (TR) 输入数目和类型:16 个单端，双极；8 个差分，双极 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494 |
| AD7811 | 制造商:AD 制造商全称:Analog Devices 功能描述:+2.7 V to +5.5 V, 350 kSPS, 10-Bit 4-/8-Channel Sampling ADCs |
| AD7811YN | 制造商:Analog Devices 功能描述:ADC Single SAR 350ksps 10-bit Serial 16-Pin PDIP 制造商:Rochester Electronics LLC 功能描述:4 CH. 10-BIT ADC I.C. - Bulk 制造商:Analog Devices 功能描述:IC 10BIT ADC 4CH 7811 DIP16 |
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