- 您现在的位置：买卖IC网 > PDF目录10735 > MCP3421A3T-E/CH (Microchip Technology)IC ADC 18BIT 3.75SPS 1CH SOT23-6 PDF资料下载
参数资料
| 型号： | MCP3421A3T-E/CH |
| 厂商： | Microchip Technology |
| 文件页数： | 11/42页 |
| 文件大小： | 0K |
| 描述： | IC ADC 18BIT 3.75SPS 1CH SOT23-6 |
| 产品培训模块： | MCP3901 Analog Front End |
| 标准包装： | 1 |
| 位数： | 18 |
| 采样率（每秒）： | 3.75 |
| 数据接口： | I²C，串行 |
| 转换器数目： | 1 |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 |
| 供应商设备封装： | SOT-23-6 |
| 包装： | 标准包装 |
| 输入数目和类型： | 2 个单端，双极；1 个差分，单极 |
| 产品目录页面： | 672 (CN2011-ZH PDF) |
| 其它名称： | MCP3421A3T-E/CHDKR |
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页当前第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页第38页第39页第40页第41页第42页
2009 Microchip Technology Inc.
DS22003E-page 19
MCP3421
5.3.3
READING OUTPUT CODES AND
CONFIGURATION BYTE FROM THE
DEVICE
When the Master sends a read command (R/W = 1),
the device outputs both the conversion data and config-
uration bytes. Each byte consists of 8 bits with one
acknowledge (ACK) bit. The ACK bit after the address
byte is issued by the device and the ACK bits after each
conversion data bytes are issued by the Master.
When the device is configured for 18-bit conversion
mode, it outputs three data bytes followed by a
configuration byte. The first 6 data bits in the first data
byte are repeated MSB (= sign bit) of the conversion
data. The user can ignore the first 6 data bits, and take
the 7th data bit (D17) as the MSB of the conversion
data. The LSB of the 3rd data byte is the LSB of the
conversion data (D0).
If the device is configured for 12, 14, or 16 bit-mode, the
device
outputs
two
data
bytes
followed
by
a
configuration byte. In 16 bit-conversion mode, the MSB
(= sign bit) of the first data byte is D15. In 14-bit
conversion mode, the first two bits in the first data byte
are repeated MSB bits and can be ignored, and the 3rd
bit (D13) is the MSB (=sign bit) of the conversion data.
In 12-bit conversion mode, the first four bits are
repeated MSB bits and can be ignored. The 5th bit
(D11) of the byte represents the MSB (= sign bit) of the
conversion data. Table 5-3 summarizes the conversion
data output of each conversion mode.
The configuration byte follows the output data bytes.
The device repeatedly outputs the configuration byte
only if the Master sends clocks repeatedly after the
data bytes.
The device terminates the current outputs when it
receives a Not-Acknowledge (NAK), a repeated start or
a stop bit at any time during the output bit stream. It is
not required to read the configuration byte. However,
the Master may read the configuration byte to check
the RDY bit condition.The Master may continuously
send clock (SCL) to repeatedly read the configuration
byte (to check the RDY bit status).
reading.
TABLE 5-3:
OUTPUT CODES OF EACH RESOLUTION OPTION
Conversion
Option
Digital Output Codes
18-bits
MMMMMMD17D16 (1st data byte) - D15 ~ D8 (2nd data byte) - D7 ~ D0 (3rd data byte) - Configuration
byte.
16-bits
D15 ~ D8 (1st data byte) - D7 ~ D0 (2nd data byte) - Configuration byte.
14-bits
MMD13D ~ D8 (1st data byte) - D7 ~ D0 (2nd data byte) - Configuration byte.
12-bits
MMMMD11 ~ D8 (1st data byte) - D7 ~ D0 (2nd data byte) - Configuration byte.
Note 1: D17 is MSB (= sign bit), M is repeated MSB of the data byte.
2: D15 is MSB (= sign bit).
3: D13 is MSB (= sign bit), M is repeated MSB of the data byte.
4: D11 is MSB (= sign bit), M is repeated MSB of the data byte.
相关PDF资料 |
PDF描述 |
|---|---|
| ADCMP581BCPZ-WP | IC COMPARATOR ECL UFAST 16-LFCSP |
| ADCMP582BCPZ-WP | IC COMPARATOR PECL UFAST 16LFCSP |
| ADCMP572BCPZ-WP | IC COMPARATOR CML 3.3-5V 16LFCSP |
| VE-J4V-MY-F4 | CONVERTER MOD DC/DC 5.8V 50W |
| VI-JNW-MY-F2 | CONVERTER MOD DC/DC 5.5V 50W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP3421A4T-E/CH | 制造商:Microchip Technology Inc 功能描述:ANALOG-TO-DIGITAL CONVERTER WITH 18-BIT 制造商:Microchip Technology Inc 功能描述:18-BIT DELTA-SIGMA ADC, SINGLE CHANNEL, 4SPS - Tape and Reel 制造商:Microchip Technology Inc 功能描述:IC ADC 18BIT I2C 4SPS SOT23-6 制造商:Microchip Technology Inc 功能描述:18-bit delta-sigma ADC, single channel, 4sps, 6 SOT-23 T/R |
| MCP3421A4T-E/OT | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:18-Bit Analog-to-Digital Converter with I2C Interface and On-Board Reference |
| MCP3421A5T-E/CH | 制造商:Microchip Technology 功能描述:18-BIT DELTA-SIGMA ADC, SINGLE 制造商:Microchip Technology Inc 功能描述:18-BIT DELTA-SIGMA ADC, SINGLE CHANNEL, 4SPS - Tape and Reel 制造商:Microchip Technology Inc 功能描述:IC ADC 18BIT I2C 4SPS SOT23-6 |
| MCP3421A5T-E/OT | 功能描述:IC ADC 18BIT 3.75SPS SOT23-6 RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 位数:12 采样率（每秒）:3M 数据接口:- 转换器数目:- 功率耗散（最大）:- 电压电源:- 工作温度:- 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-23-6 包装:带卷 (TR) 输入数目和类型:- |
| MCP3421A6T-E/CH | 制造商:Microchip Technology 功能描述:18-BIT DELTA-SIGMA ADC, SINGLE 制造商:Microchip Technology Inc 功能描述:18-BIT DELTA-SIGMA ADC, SINGLE CHANNEL, 4SPS - Tape and Reel 制造商:Microchip Technology Inc 功能描述:IC ADC 18BIT I2C 4SPS SOT23-6 |
发布紧急采购，3分钟左右您将得到回复。