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参数资料
| 型号： | ADC0833 |
| 厂商： | National Semiconductor Corporation |
| 英文描述： | 8-Bit Serial I/O A/D Converter with 4-Channel Multiplexer |
| 中文描述： | 8位串行I /办公自动化/ D的4通道多路复用器 |
| 文件页数： | 13/20页 |
| 文件大小： | 316K |
| 代理商： | ADC0833 |
Functional Description
(Continued)
This zener is intended for use as a shunt voltage regulator
to eliminate the need for any additional regulating compo-
nents. This is most desirable if the converter is to be re-
motely located from the system power source. Figures 4
and 5 illustrate two useful applications of this on-board ze-
ner when an external transistor can be afforded.
An important use of the interconnecting diode between V
a
and V
CC
is shown in Figures 6 and 7. Here, this diode is
used as a rectifier to allow the V
CC
supply for the converter
to be derived from the clock. The low current requirements
of the A/D (
E
3 mA) and the relatively high clock frequen-
cies used (typically in the range of 10k-400 kHz) allows us-
ing the small value filter capacitor shown to keep the ripple
on the V
CC
line to well under
(/4
of an LSB. The shunt zener
regulator can also be used in this mode. This requires a
clock voltage swing which is in excess of V
Z
. A current limit
for the zener is needed, either built into the clock generator
or a resistor can be used from the CLK pin to the V
a
pin.
Applications
TL/H/5607–15
TL/H/5607–16
FIGURE 4. Operating with a Temperature
Compensated Reference
TL/H/5607–17
*
Note 4.5V
s
V
CC
s
6.3V
FIGURE 6. Generally V
CC
from the Converter Clock
FIGURE 5. Using the A/D as the
System Supply Regulator
TL/H/5607–9
FIGURE 7. Remote SensingDClock
and Power on 1 Wire
13
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| ADC0833BCN | 8-Bit Serial I/O A/D Converter with 4-Channel Multiplexer |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADC0833BCN | 制造商:NSC 制造商全称:National Semiconductor 功能描述:8-Bit Serial I/O A/D Converter with 4-Channel Multiplexer |
| ADC0833BCN/A+ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog-to-Digital Converter， 8-Bit |
| ADC0833BCN/B+ | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog-to-Digital Converter， 8-Bit |
| ADC0833CCJ | 制造商:NSC 制造商全称:National Semiconductor 功能描述:8-Bit Serial I/O A/D Converter with 4-Channel Multiplexer |
| ADC0833CCN | 制造商: 功能描述: 制造商:undefined 功能描述: |
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