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参数资料
| 型号： | EVAL-AD7738EBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 6/28页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR AD7738 |
| 标准包装： | 1 |
| ADC 的数量： | 1 |
| 位数： | 24 |
| 采样率（每秒）： | 15.4k |
| 数据接口： | 串行 |
| 输入范围： | ±2.5 V |
| 在以下条件下的电源（标准）： | 85mW @ 5V |
| 工作温度： | -40°C ~ 105°C |
| 已用 IC / 零件： | AD7738 |
| 已供物品： | 板 |
| 相关产品： | AD7738BRUZ-REEL7-ND - IC ADC 24BIT 8CH SIG-DEL 28TSSOP AD7738BRUZ-REEL-ND - IC ADC 24BIT 8CH SIG-DEL 28TSSOP AD7738BRUZ-ND - IC ADC 24BIT 8-CH 28-TSSOP AD7738BRU-REEL7-ND - IC ADC 24BIT 8CH SIG-DEL 28TSSOP AD7738BRU-ND - IC ADC 24BIT 8-CH 28-TSSOP |
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REV. 0
–14–
AD7738
I/O Port Register
8 Bits, Read/Write Register, Address 01h, Default Value 30h + Digital Input Value
40h
The bits in this register are used to configure and access the digital I/O pin on the AD7738.
Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Mnemonic
P0
P1
P0 DIR
P1 DIR
RDY FN
0
SYNC
Default
P0 Pin
P1 Pin
1
0
Bit
Mnemonic
Description
7P0
When the AINCOM/P0 pin is configured as a digital output, the P0 bit determines the pin’s output level.
6P1When the P1 pin is configured as an output, the P1 bit determines the pin’s output level. When the P1
pin is configured as an input, the P1 bit reflects the current input level on the pin.
5
P0 DIRWhen set to 1, the AINCOM/P0 pin is configured as an analog input. When set to 0, the AINCOM/P0
pin is configured as a digital output.
4
P1 DIRThis bit determines whether P1 pin is configured as an input or an output. When set to 1, the P1 pin will
be a digital input; when reset to 0, the pin will be a digital output.
3
RDY FN
This bit is used to control the function of the
RDY pin on the AD7738. When this bit is reset to 0 the RDY
pin goes low when any channel has unread data. When this bit is set to 1, the
RDY pin will only go low if all
enabled channels have unread data.
2, 1
0
These bits must be zero for proper operation.
0
SYNC
This bit enables the
SYNC pin function. By default, this bit is 0 and SYNC/P1 can be used as a
digital I/O pin. When the SYNC EN bit is set to 1, the
SYNC pin can be used to synchronize the
AD7738 modulator and digital filter with other devices in the system.
Revision Register
8 Bits, Read-Only Register, Address 02h, Default Value 01h + Chip Revision
10h
Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Mnemonic
Chip Revision Code
Chip Generic Code
Default
x
0
1
Bit
Mnemonic
Description
7–4
Chip Revision Code
4-Bit Factory Chip Revision Code
3–0
Chip Generic Code
On the AD7738, these bits will read back as 01h.
Test Register
24 Bits, Read/Write Register, Address 03h
This register is used for testing the part in the manufacturing process. The user must not change the default configuration of this register.
ADC Status Register
8 Bits, Read-Only Register, Address 04h, Default Value 00h
In conversion modes, the register bits reflect the individual channel status. When a conversion is complete, the corresponding Channel
Data register is updated and the corresponding RDY bit is set to 1. When the Channel Data register is read, the corresponding bit is
reset to 0. The bit is also reset to 0 when no read operation has taken place and the result of the next conversion is being updated to
the Channel Data register. Writing to the Mode register resets all the bits to 0.
In calibration modes, all the register bits are reset to 0 while a calibration is in progress and all the bits are set to 1 when the
calibration is complete.
The
RDY pin output is related to the content of ADC Status register as defined by the RDY Function bit in the I/O Port register.
Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Mnemonic
RDY7
RDY6
RDY5
RDY4
RDY3
RDY2
RDY1
RDY0
Default
0
The RDY0 bit corresponds to Channel 0, RDY1 bit to Channel 1, and so on.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| EVAL-AD7739EB | 制造商:Analog Devices 功能描述:EVALUATION BOARD I.C. - Bulk |
| EVAL-AD7739EBZ | 功能描述:BOARD EVAL FOR AD7739 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-AD7741/42EB | 制造商:Analog Devices 功能描述:Evaluation Board For Single And Multi-Channel Synchronous Voltage-To-Frequency Converters 制造商:Analog Devices 功能描述:EVALUATION BOARD IC - Bulk |
| EVAL-AD7741/42EBZ | 功能描述:BOARD EVAL FOR AD7741/7742 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:- 主要目的:电信，线路接口单元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要属性:T1/J1/E1 LIU 次要属性:- 已供物品:板，电源，线缆，CD 其它名称:82EBV2081 |
| EVAL-AD7741-42EBZ | 制造商:AD 制造商全称:Analog Devices 功能描述:Single and Multichannel, Synchronous Voltage-to-Frequency Converters |
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