- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄9044 > MCP4725A2T-E/CH (Microchip Technology)IC DAC 12BIT EE W/I2C SOT23-6 PDF資料下載
參數(shù)資料
| 型號(hào)： | MCP4725A2T-E/CH |
| 廠商： | Microchip Technology |
| 文件頁數(shù)： | 13/50頁 |
| 文件大?。?/td> | 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 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁當(dāng)前第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁
MCP4725
DS22039D-page 20
2009 Microchip Technology Inc.
5.4.2
VDD RAMP RATE AND EEPROM
The MCP4725 uploads the EEPROM data to the DAC
register during power-up sequence. However, if the
VDD ramp rate is too slow ( <1 V/ms), the device may
not be able to load the EEPROM data to the DAC
register. Therefore, the DAC output that is correspond-
ing to the current EEPROM data may not available to
the output pin. It is highly recommended to send a Gen-
eral Call Reset Command (see Section 7.3.1 “Gen-
eral call reset”) after power-up. This command will
reset the device at a stable VDD and make the DAC out-
put available immediately using the EEPROM data.
5.5
Normal and Power-Down Modes
The device has two modes of operation: Normal mode
and power-down mode. The mode is selected by
programming the power-down bits (PD1 and PD0) in
the Configuration register. The user can also program
the two power-down bits in non-volatile EEPROM
memory.
When the normal mode is selected, the device
operates a normal digital-to-analog conversion. If the
power-down mode is selected, the device enters a
power saving condition by shutting down most of the
internal circuits. During the power-down mode, all
internal circuits except the I2C interface are disabled
and there is no data conversion event, and no VOUT is
available. The device also switches the output stage
from the output of the amplifier to a known resistive
load. The value of the resistive load is determined by
the state of the power-down bits (PD1 and PD0).
Table 5-2 shows the outcome of the power-down bit
and the resistive load.
During the power-down mode, the device draws about
60 nA (typical). Although most of internal circuits are
shutdown, the serial interface remains active in order
to receive the I2C command.
The device exits the power-down mode immediately
when (a) it receives a new write command for normal
mode or (b) it receives an I2C General Call Wake-Up
Command.
When the DAC operation mode is changed from
power-down to normal mode, the output settling time
takes less than 10 s, but greater than the standard
Active mode settling time (6 s, typical).
TABLE 5-2:
POWER-DOWN BITS
FIGURE 5-1:
Output Stage for Power-
Down Mode.
PD1
PD0
Function
00
Normal Mode
01
1k resistor to ground (1)
10
100 k resistor to ground (1)
11
500 k resistor to ground (1)
Note 1: In the power-down mode: VOUT is off and
most of internal circuits are disabled.
1k
100 k 500 k
Power-Down
Control Circuit
Resistive
Load
VOUT
OP
Amp
Resistive String DAC
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| IDT23S09E-1HPGG8 | IC CLK BUFFER ZD HI DRV 16-TSSOP |
| VI-BTH-MY-F3 | CONVERTER MOD DC/DC 52V 50W |
| MCP4725A1T-E/CH | IC DAC 12BIT EE W/I2C SOT23-6 |
| M83723/95A1404N | CONN PLUG 4POS STRAIGHT W/SCKT |
| VI-BTH-MY-F1 | CONVERTER MOD DC/DC 52V 50W |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MCP4725A3T-E/CH | 功能描述:數(shù)模轉(zhuǎn)換器- DAC Sngl 12-B NV DAC w/ I2C interface RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MCP4725A3T-E/CH-CUT TAPE | 制造商:Microchip 功能描述:MCP4725 Series 1 Ch I2C EEPROM Memory 5.5 V 12-Bit D/A Converter SMT - SOT-23-6 |
| MCP4725DM-PTPLS | 功能描述:子卡和OEM板 MCP4725 DAC PICTail Plus Daughter Board RoHS:否 制造商:BeagleBoard by CircuitCo 產(chǎn)品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit |
| MCP4725EV | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 MCP4725 Eval Brd RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
| MCP4725T-E/CH | 功能描述:數(shù)模轉(zhuǎn)換器- DAC SNGL 12B NV DAC with I2C interface RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。