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參數(shù)資料
| 型號(hào)： | ZN427E8 |
| 廠商： | ZARLINK SEMICONDUCTOR INC |
| 元件分類： | ADC |
| 英文描述： | Circular Connector; MIL SPEC:MIL-DTL-38999 Series III; Body Material:Metal; Series:TVPS00; No. of Contacts:4; Connector Shell Size:21; Connecting Termination:Crimp; Circular Shell Style:Wall Mount Receptacle; Body Style:Straight |
| 中文描述： | 1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDIP18 |
| 封裝： | DP18 |
| 文件頁數(shù)： | 10/17頁 |
| 文件大?。?/td> | 311K |
| 代理商： | ZN427E8 |
ZN427
9
GROUND
(PIN 9)
CREF
(4.7μ)
RREF
(390)
VREF OUT
(PIN 8)
VCC +5V
(PIN 10)
Fig.11 Internal voltage reference
(b) External reference
If required an external reference in the range +1.5 to +3.0V
may be connected to V
IN. The slope resistance of such a
reference source should be less than 2.5
, where n is the
n
number of converters supplied.
RATIOMETRIC OPERATION
If the output from a transducer varies with its supply then an
external reference for the ZN427 should be derived from the
same supply. The external reference can vary from +1.5 to
+3.0V. The ZN448/9 will operate if V
IN is less than +1.5V
but reduced overdrive to the comparator will increase its delay
and so the conversion time will need to be increased.
COMPARATOR
The ZN427 contains a fast comparator, the equivalent input
circuit of which is shown in Fig.12.
Fig.12 Comparator equivalent circuit
4k
4k
PIN 5
V -
6k
6k
TO LOGIC
HIGH = 'RETAIN BIT'
D TO A OUTPUT
(O - VREF IN)
AIN
RIN
VIN
PIN 6
+5V PIN 10
REXT
IEXT
+
-
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ZN427D | Low Current Operation at 250 ，Low Reverse Leakage,Low Noise Zener Diode |
| ZN427E-8 | Low Current Operation at 250 ，Low Reverse Leakage,Low Noise Zener Diode |
| ZN427E8DP | Low Current Operation at 250 ，Low Reverse Leakage,Low Noise Zener Diode |
| ZN427J-8 | Low Current Operation at 250 ，Low Reverse Leakage,Low Noise Zener Diode |
| ZN427J8DC | Low Current Operation at 250 ，Low Reverse Leakage,Low Noise Zener Diode |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ZN427E-8 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog-to-Digital Converter， 8-Bit |
| ZN427E8DP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog-to-Digital Converter， 8-Bit |
| ZN427J8 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:MICROPROCESSOR COMPATIBLE 8-BIT SUCCESSIVE APPROXIMATION A-D CONVERTER |
| ZN427J-8 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog-to-Digital Converter， 8-Bit |
| ZN427J8DC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog-to-Digital Converter， 8-Bit |
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