- 您现在的位置：买卖IC网 > PDF目录16860 > EVAL-AD7280AEDZ (Analog Devices Inc)BOARD EVAL FOR AD7280 PDF资料下载
参数资料
| 型号： | EVAL-AD7280AEDZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 38/48页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR AD7280 |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电池监控器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | * |
| 主要属性： | * |
| 次要属性： | SPI 接口 |
| 已供物品： | 板 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页当前第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页
AD7280A
EXAMPLES OF INTERFACING WITH THE AD7280A
The AD7280A supports a number of read options. The user can
read back the results from
CONVERT AND READBACK ROUTINE
When conversion data from any or all of the AD7280As in a
?
?
?
All conversions completed on all parts in the chain
Individual registers on all parts in the chain
Individual registers on selected parts in the chain
daisy chain is read back, the conversion results returned from
the AD7280A are the last completed set of conversions on that
part. It is recommended that the user also set Bits[D15:D14] of
In each case, the user must first write to the read register on the
selected parts to configure that part to supply the correct data
on the outputs. When reading back an individual register, the
address of that register should be written to the read register of
the selected part. When reading back conversion results from
any or all parts in the chain, an address of 0x00 should be written
to the read register of the selected parts.
When the address written to the read register is 0x00, the
conversion results selected for readback are controlled by
setting Bits[D13:D12] of the control register (see Table 14).
These bits allow the user to select one of four different read-
back options:
? Read back 12 conversion results: six voltage and six
auxiliary.
? Read back nine conversion results: six voltage and three
auxiliary.
? Read back six conversion results: six voltage results only.
? Switch off the read operation on this part.
the control register to select the number of conversions to be
completed on each part and initiate the conversions through
either the CNVST pin or the rising edge of CS as part of the
read operation. In this way, the user can implement a simple
convert and readback routine with the most efficient number
of 32-bit write and read operations.
A general example of this routine, which converts and reads
back from all parts in the AD7280A daisy chain, is as follows:
1. Write 0x00 to the read register on all parts in the daisy
chain. Note that 0x00 is the default value of this register
on power-up and following a software reset operation.
2. Write to the control register on all parts. Set Bits[D15:D14]
to select the required conversions. Set Bits[D13:D12] to
select the required conversion results for readback.
3. Initiate the conversions through either the falling edge of
CNVST or the rising edge of CS (set Bit D11 of the control
register to select the conversion start format).
4. Allow sufficient time for each conversion to be completed
To read back an individual register from a single AD7280A in
the daisy chain, follow these steps:
5.
Apply a CS low pulse that frames 32 SCLKs for each
1.
2.
On all other parts in the chain, set Bits[D13:D12] of the
control register to 11 to select the no-read operation on
those parts.
On the targeted part, set Bits[D13:D12] of the control
register to turn on the read operation.
conversion result to be read back.
EXAMPLES
The following examples of conversion and/or readback routines
can be used in an application that implements a chain of AD7280A
devices to monitor the voltage and/or auxiliary ADC inputs of
Note that it is more efficient in terms of 32-bit write cycles to
the AD7280A on a stack of lithium ion batteries.
first switch off the read operation on all AD7280As in the daisy
chain. This is achieved with a single write cycle, using Bit D12
in the write command to address all parts in the chain. The user
can then address the individual part and set Bits[D13:D12] of
the control register to turn on the read operation for that part.
Rev. 0 | Page 38 of 48
相关PDF资料 |
PDF描述 |
|---|---|
| V110C24C100B3 | CONVERTER MOD DC/DC 24V 100W |
| MLG0603S2N0S | INDUCTOR MULTILAYER 2.0NH 0201 |
| V110C24C100B2 | CONVERTER MOD DC/DC 24V 100W |
| EVAL-ADM1087EB | BOARD EVAL FOR ADM1087 |
| V110B28E150BG2 | CONVERTER MOD DC/DC 28V 150W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| EVAL-AD7291SDZ | 功能描述:BOARD EVAL FOR AD7291 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| EVAL-AD7292SDZ | 功能描述:数据转换 IC 开发工具 EVALUATION BOARD RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| EVAL-AD7294EBZ | 功能描述:BOARD EVALUATION FOR AD7294 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| EVAL-AD7298SDZ | 功能描述:BOARD EVAL FOR AD7298 RoHS:是 类别:编程器，开发系统 >> 评估板 - 模数转换器 (ADC) 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- ADC 的数量:1 位数:12 采样率（每秒）:94.4k 数据接口:USB 输入范围:±VREF/2 在以下条件下的电源（标准）:- 工作温度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，软件 |
| EVAL-AD7298SDZ | 制造商:Analog Devices 功能描述:EVAL BOARD, AD7192 12BIT ADC |
发布紧急采购，3分钟左右您将得到回复。