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| 型号： | MCP3201T-BI/SN |
| 厂商： | Microchip Technology |
| 文件页数： | 11/40页 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT 2.7V 1CH SPI 8-SOIC |
| 标准包装： | 3,300 |
| 位数： | 12 |
| 采样率（每秒）： | 100k |
| 数据接口： | 串行，SPI? |
| 转换器数目： | 1 |
| 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： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 1 个单端，单极 |
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1998-2011 Microchip Technology Inc.
DS21290F-page 19
MCP3201
5.0
SERIAL COMMUNICATIONS
Communication with the device is done using a
standard SPI-compatible serial interface. Initiating
communication with the MCP3201 device begins with
the CS going low. If the device was powered up with the
CS pin low, it must be brought high and back low to
initiate communication. The device will begin to sample
the analog input on the first rising edge after CS goes
low. The sample period will end in the falling edge of the
second clock, at which time the device will output a low
null bit. The next 12 clocks will output the result of the
conversion with MSB first, as shown in Figure 5-1. Data
is always output from the device on the falling edge of
the clock. If all 12 data bits have been transmitted and
the device continues to receive clocks while the CS is
held low, the device will output the conversion result
LSB first, as shown in Figure 5-2. If more clocks are
provided to the device while CS is still low (after the
LSB first data has been transmitted), the device will
clock out zeros indefinitely.
FIGURE 5-1:
Communication with MCP3201 device using MSB first Format.
FIGURE 5-2:
Communication with MCP3201 device using LSB first Format.
CS
CLK
D
OUT
tCYC
POWER
DOWN
TSUCS
TSAMPLE
tCONV
tDATA**
* After completing the data transfer, if further clocks are applied with CS low, the A/D Converter will output LSB first data, followed
by zeros indefinitely. See Figure 5-2 below.
** tDATA: during this time, the bias current and the comparator power-down and the reference input becomes a high-impedance
node, leaving the CLK running to clock out the LSB-first data or zeros.
TCSH
NULL
BIT B11 B10 B9
B8
B7
B6
B5
B4
B3
B2
B1 B0*
HI-Z
B11 B10 B9
B8
NULL
BIT
CS
CLK
D
OUT
tCYC
POWER DOWN
tSUCS
tSAMPLE
tCONV
tDATA**
* After completing the data transfer, if further clocks are applied with CS low, the A/D Converter will output zeros indefinitely.
** tDATA: during this time, the bias current and the comparator power-down and the reference input becomes a high-impedance
node, leaving the CLK running to clock out the LSB-first data or zeros.
tCSH
NULL
BIT B11B10B9 B8 B7 B6 B5 B4 B3 B2 B1 B0
HI-Z
B1 B2 B3 B4 B5 B6 B7 B8 B9 B10B11*
HI-Z
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP3201T-CI/MS | 制造商:Microchip Technology Inc 功能描述:MCP3201 Series 2.7 V 12-Bit A/D Converter with SPI Serial Interface - MSOP-8 制造商:Microchip Technology Inc 功能描述:Single Channel SPI Serial Interface 2.7 V 12-Bit A/D Converter SMT - MSOP-8 |
| MCP3201T-CI/P | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:2.7V 12-Bit A/D Converter with SPI Serial Interface |
| MCP3201T-CI/SN | 功能描述:模数转换器 - ADC 12-bit SPI Sgl Chl 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 |
| MCP3201T-CI/ST | 功能描述:模数转换器 - ADC 12-bit SPI Sgl Chl 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 |
| MCP3201T-I/MS | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:2.7V 12-Bit A/D Converter with SPI Serial Interface |
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