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参数资料
| 型号： | MCP3421DM-BFG |
| 厂商： | Microchip Technology |
| 文件页数： | 8/42页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO FOR MCP3421 |
| 产品培训模块： | MCP3901 Analog Front End |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电池检测计 |
| 已用 IC / 零件： | MCP3421 |
| 已供物品： | 板 |
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MCP3421
DS22003E-page 16
2009 Microchip Technology Inc.
5.2
Configuration Register
The device has an 8-bit wide configuration register to
select for: input channel, conversion mode, conversion
rate, and PGA gain. This register allows the user to
change the operating condition of the device and check
the status of the device operation.
The user can rewrite the configuration byte any time
during the device operation. Register 5-1 shows the
configuration register bits.
REGISTER 5-1:
CONFIGURATION REGISTER
R/W-1
R/W-0
R/W-1
R/W-0
RDY
C1
C0
O/C
S1
S0
G1
G0
1 *
0 *
1 *
0 *
bit 7
bit 0
* Default Configuration after Power-On Reset
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
RDY: Ready Bit
This bit is the data ready flag. In read mode, this bit indicates if the output register has been updated
with a latest conversion result. In One-Shot Conversion mode, writing this bit to “1” initiates a new
conversion.
Reading RDY bit with the read command:
1
= Output register has not been updated.
0
= Output register has been updated with the latest conversion result.
Writing RDY bit with the write command:
Continuous Conversion mode: No effect
One-Shot Conversion mode:
1
= Initiate a new conversion.
0
= No effect.
bit 6-5
C1-C0: These bits are not effected for the MCP3421.
bit 4
O/C: Conversion Mode Bit
1
= Continuous Conversion Mode
(Default). The device performs data conversions continuously.
0
= One-Shot Conversion Mode. The device performs a single conversion and enters a low power
standby mode until it receives another write or read command.
bit 3-2
S1-S0: Sample Rate Selection Bit
00 =
240 SPS (12 bits)
(Default)
01 =
60 SPS (14 bits)
10 =
15 SPS (16 bits)
11
=
3.75 SPS (18 bits)
bit 1-0
G1-G0: PGA Gain Selection Bits
00 =
x1
(Default)
01 =
x2
10 =
x4
11
=
x8
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| MCP3421DM-BFG | 制造商:Microchip Technology Inc 功能描述:A/D CONVERTER EVAL. BOARD; Silicon Manufacturer:Microchip; Silicon Core Number:MCP3421; Kit Application Type:Power Management; Kit Contents:Board, Battery; Features:Measure the Battery Voltage and Display the Result on LCD ;RoHS Compliant: No |
| MCP3421DM-WS | 功能描述:数据转换 IC 开发工具 WT SCALE DEMO BRD 18 I/O 10-BIT ADC 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 |
| MCP3421E64A0-E/SN | 功能描述:模数转换器 - ADC 18-B delta-sigma ADC Sngl Ch 64kb EEPROM RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| MCP3421EV | 功能描述:数据转换 IC 开发工具 MCP3421 SOT23-6 Eval 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 |
| MCP3422 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:18-Bit, Multi-Channel ???￡ Analog-to-Digital Converter with I2Ca?￠ Interface and On-Board Reference |
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