參數(shù)資料
型號： ADUC832
廠商： Analog Devices, Inc.
英文描述： MicroConverter, 12-Bit ADCs and DACs with Embedded 62 kBytes Flash MCU
中文描述： MicroConverter的，12位ADC和62 kBytes為嵌入式閃存MCU數(shù)模轉(zhuǎn)換器
文件頁數(shù)： 34/80頁
文件大?。?/td> 1311K
代理商： ADUC832
REV. 0
–34–
ADuC832
SOURCE/SINK CURRENT – mA
4
0
5
10
15
O
3
1
0
DAC LOADED WITH 0000H
DAC LOADED WITH 0FFFH
Figure 24. Source and Sink Current Capability
with V
REF
= V
DD
= 3 V
To reduce the effects of the saturation of the output amplifier at
values close to ground and to give reduced offset and gain errors,
the internal buffer can be bypassed. This is done by setting the
DBUF bit in the CFG832 register. This allows a full rail-to-rail
output from the DAC, which should then be buffered externally
using a dual supply op amp in order to get a rail-to-rail output.
This external buffer should be located as near as physically possible
to the DAC output pin on the PCB. Note that the unbuffered
mode only works in the 0 to V
REF
range.
To drive significant loads with the DAC outputs, external buff-
ering may be required (even with the internal buffer enabled), as
illustrated in Figure 25. A list of recommended op amps is in
Table VI.
ADuC832
DAC0
DAC1
Figure 25. Buffering the DAC Outputs
The DAC output buffer also features a high impedance disable
function. In the chip
’
s default power-on state, both DACs are
disabled, and their outputs are in a high impedance state (or
“
three-state
”
) where they remain inactive until enabled in software.
This means that if a zero output is desired during power-up or
power-down transient conditions, then a pull-down resistor must
be added to each DAC output. Assuming this resistor is in place,
the DAC outputs will remain at ground potential whenever the
DAC is disabled.
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PDF描述
ADUC832BCP MicroConverter, 12-Bit ADCs and DACs with Embedded 62 kBytes Flash MCU
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADUC832BCP 制造商:Analog Devices 功能描述:MCU 8-Bit ADuC8xx 8052 CISC 62KB Flash 3V/5V 56-Pin LFCSP EP 制造商:Rochester Electronics LLC 功能描述:8BIT CISC 62KB FLASH 16.78MHZ 3.3/5V 56LFCSP - Bulk
ADUC832BCP-REEL 制造商:Analog Devices 功能描述:MCU 8-Bit ADuC8xx 8052 CISC 62KB Flash 3V/5V 56-Pin LFCSP EP T/R
ADUC832BCPZ 功能描述:IC MCU 62K FLASH ADC/DAC 56LFCSP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 標(biāo)準(zhǔn)包裝:250 系列:LPC11Uxx 核心處理器:ARM? Cortex?-M0 芯體尺寸:32-位 速度:50MHz 連通性:I²C，Microwire，SPI，SSI，SSP，UART/USART，USB 外圍設(shè)備:欠壓檢測/復(fù)位，POR，WDT 輸入/輸出數(shù):40 程序存儲器容量:96KB（96K x 8） 程序存儲器類型:閃存 EEPROM 大小:4K x 8 RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):1.8 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 8x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:48-LQFP 包裝:托盤 其它名稱:568-9587
ADUC832BCPZ-REEL 功能描述:IC MCU 62K FLASH ADC/DAC 56LFCSP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:MicroConverter® ADuC8xx 標(biāo)準(zhǔn)包裝:38 系列:Encore!® XP® 核心處理器:eZ8 芯體尺寸:8-位 速度:5MHz 連通性:IrDA，UART/USART 外圍設(shè)備:欠壓檢測/復(fù)位，LED，POR，PWM，WDT 輸入/輸出數(shù):16 程序存儲器容量:4KB（4K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 105°C 封裝/外殼:20-SOIC（0.295"，7.50mm 寬） 包裝:管件 其它名稱:269-4116Z8F0413SH005EG-ND
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