参数资料
型号: MCP3426A0-E/MC
厂商: Microchip Technology
文件页数: 18/56页
文件大小: 0K
描述: IC ADC 16BIT I2C PROGBL 8-DFN
产品培训模块: MCP3901 Analog Front End
标准包装: 150
位数: 16
采样率(每秒): 15
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: 8-VFDFN 裸露焊盘
供应商设备封装: 8-DFN(2x3)
包装: 管件
输入数目和类型: 2 个差分,单极
产品目录页面: 672 (CN2011-ZH PDF)
2009 Microchip Technology Inc.
DS22226A-page 25
MCP3426/7/8
5.6.5
ACKNOWLEDGE AND
NON-ACKNOWLEDGE
The Master (microcontroller) and the slave (MCP3426/
7/8) use an acknowledge pulse (ACK) as a hand shake
of communication for each byte. The ninth clock pulse
of each byte is used for the acknowledgement. The
clock pulse is always provided by the Master
(microcontroller) and the acknowledgement is issued
by the receiving device of the byte (Note: The
transmitting device must release the SDA line during
the acknowledge pulse.). The acknowledgement is
achieved by pulling-down the SDA line “LOW” during
the 9th clock pulse by the receiving device.
During
reads,
the
Master
(microcontroller)
can
terminate the current read operation by not providing
an acknowledge bit (not Acknowledge (NAK)) on the
last byte. In this case, the MCP3426/7/8 devices
release
the
SDA
line
to
allow
the
Master
(microcontroller) to generate a STOP or repeated
START condition.
The
non-acknowledgement
(NAK)
is
issued
by
providing the SDA line to “HIGH” during the 9th clock
pulse.
FIGURE 5-6:
Data Transfer Sequence on I2C Serial Bus.
SCL
SDA
(A)
(B)
(D)
(A)
(C)
START
CONDITION
ADDRESS OR
ACKNOWLEDGE
VALID
DATA
ALLOWED
TO CHANGE
STOP
CONDITION
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MCP3426A0T-E/MC 功能描述:模数转换器 - ADC 16-bit delta-sigma ADC dual chan 15sps 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
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