參數(shù)資料
型號(hào)： MCP4725A2T-E/CH
廠商： Microchip Technology
文件頁數(shù)： 17/50頁
文件大小： 0K
描述： IC DAC 12BIT EE W/I2C SOT23-6
標(biāo)準(zhǔn)包裝： 1
設(shè)置時(shí)間： 6µs
位數(shù)： 12
數(shù)據(jù)接口： EEPROM，I²C，串行
轉(zhuǎn)換器數(shù)目： 1
電壓電源： 單電源
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： SOT-23-6
供應(yīng)商設(shè)備封裝： SOT-23-6
包裝： 標(biāo)準(zhǔn)包裝
輸出數(shù)目和類型： 1 電壓，單極；1 電壓，雙極
采樣率（每秒）： *
產(chǎn)品目錄頁面： 673 (CN2011-ZH PDF)
配用： MCP4725DM-PTPLS-ND - BOARD DAUGHTER PICTAIL MCP4725
其它名稱： MCP4725A2T-E/CHDKR
MCP4725
DS22039D-page 24
2009 Microchip Technology Inc.
TABLE 6-2:
WRITE COMMAND TYPE
FIGURE 6-1:
Fast Mode Write Command.
C
2
C
1
C0
Command Name
Function
0
X
Fast Mode
This command is used to change the DAC register. EEPROM is not
affected
00
X
“
0
1
0
Write DAC Register
Load configuration bits and data code to the DAC Register
0
1
Write DAC Register
and
EEPROM
(a) Load configuration bits and data code to the DAC Register and
(b) also write the EEPROM
1
0
Reserved
Reserved for future use
1
0
1
Reserved
Reserved for future use
1
0
Reserved
Reserved for future use
1
Reserved
Reserved for future use
Note 1: X = Dont’ Care. Fast Mode does not use C0 bit.
2: The MCP4725 ignores the “Reserved” commands.
1st byte (Device Addressing)
Device Code Address
R/W
ACK (MCP4725)
2nd byte
3rd byte
DAC Register Data (12 bits)
ACK (MCP4725)
Repeat bytes of 2nd and 3rd bytes
Write DAC Register using Fast Mode Write Command: (C2, C1) = (0, 0)
Fast Mode Command (C2, C1 = 0, 0)
ACK (MCP4725)
Power Down Select
START Bit
2nd byte
3rd byte
Read/Write Command
STOP Bit
see Note 1
see Note 2
ACK (MCP4725)
see Note 2
Note 1: A2 and A1 bits are programmed at the factory by hard-wired, and A0 bit is determined by the logic state
of A0 pin.
2: The device updates VOUT at the falling edge of the ACK pulse of the 3rd byte.
11
0
A2
0
A1 A0
0
0 PD1 PD0 D11
D8
D10 D9
D7 D6 D5 D4 D3
D0
D2 D1
0
PD1 PD0 D11
D8
D10 D9
D7 D6 D5 D4 D3
D0
D2 D1
Bits
ACK (MCP4725)
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