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| 型号： | EVAL-AD7738EBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 9/28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
AD7738
–17–
Channel Setup Registers
8 Bits, Read/Write Register, Address 28h–2Fh, Default Value 00h
These registers are used to configure the selected channel, its input voltage range, and set up the corresponding Channel Status
register.
Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Mnemonic
BUF OFF
COM1
COM0
Stat. Opt.
ENABLE
RNG2
RNG1
RNG0
Default
0
Bit
Mnemonic
Description
7
BUF OFF
Buffer Off. If reset to 0, then internal buffer is enabled. Only operation with internal buffer enabled
is recommended.
6, 5
COM1, COM0 Analog Input Configuration. See Table XI.
4
Stat. Opt.
Status Option. When this bit is set to 1, the P1 bit in the Status Channel register will reflect the state
of the P1 pin. When this bit is reset to 0, the P1 bit in the Status Channel register bit will reflect
the channel corresponding RDY bit in the ADC Status register.
3
ENABLE
Channel Enable. Set this bit to 1 to enable the channel in the Continuous Conversion mode. A single
conversion will take place regardless of this bit value.
2–0
RNG2–0
The Channel Input Voltage Range. See Table XII.
Table XI.
COM1
COM0
COM1
COM0
Channel
0
1
0
AIN0–AINCOM
AIN0–AIN1
1
AIN1–AINCOM
AIN2–AIN3
2
AIN2–AINCOM
AIN4–AIN5
3
AIN3–AINCOM
AIN6–AIN7
4
AIN4–AINCOM
AIN0–AIN1
5
AIN5–AINCOM
AIN2–AIN3
6
AIN6–AINCOM
AIN4–AIN5
7
AIN7–AINCOM
AIN6–AIN7
Table XII.
Nominal Input
RNG2
RNG1
RNG0
Voltage Range
10
0
±2.5 V
10
10 V to +2.5 V
00
0
±1.25 V
00
10 V to +1.25 V
01
0
±0.625 V
01
10 V to +0.625 V
Channel Conversion Time Registers
8 Bits, Read/Write Register, Address 30h–37h, Default Value 91h
The Conversion Time registers enable or disable chopping and configure the digital filter for a particular channel.
This register value affects the conversion time, frequency response, and noise performance of the ADC.
Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Mnemonic
CHOP
FW (7-Bit Filter Word)
Default
1
11h
Bit
Mnemonic
Description
7
CHOP
Chop Enable Bit. Set to 1 to apply chopping mode for a particular channel.
6–0
FW
CHOP = 1, Single Conversion or Continuous Conversion with one channel enabled.
Conversion Time (
s) = (FW
128 + 248)/MCLK Frequency (MHz), the FW in range of 2 to 127.
CHOP = 1, Continuous Conversion with two or more channels enabled.
Conversion Time (
s) = (FW
128 + 249)/MCLK Frequency (MHz), the FW in range of 2 to 127.
CHOP = 0, Single Conversion or Continuous Conversion with one channel enabled.
Conversion Time (
s) = (FW
64 + 206)/MCLK Frequency (MHz), the FW in range of 3 to 127.
CHOP = 0, Single Conversion or Continuous Conversion with two or more channels enabled.
Conversion Time (
s) = (FW
64 + 207)/MCLK Frequency (MHz), the FW in range of 3 to 127.
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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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