參數(shù)資料
型號(hào)： ZN427E-8
元件分類： 參考電壓二極管
英文描述： Low Current Operation at 250 ，Low Reverse Leakage,Low Noise Zener Diode
中文描述： 250 的低電流運(yùn)算，低反向泄露，低噪聲穩(wěn)壓二極管
文件頁(yè)數(shù)： 2/17頁(yè)
文件大小： 311K
代理商： ZN427E-8
ZN427E8 / ZN427J8
MICROPROCESSOR COMPATIBLE
8-BIT SUCCESSIVE APPROXIMATION A-D CONVERTER
DS3006 - 2.1
Fig.2 System diagram
The ZN427 is an 8-bit successive approximation converter
with three-state outputs to permit easy interfacing to a
common data bus. The IC contains a voltage switching DAC,
a fast comparator, successive approximation logic and a
2.56V precision bandgap reference, the use of which is pin
optional to retain flexibility. An external fixed or varying
reference may therefore be substituted, thus allowing
ratiometic operation
Only passive external components are required for
operation of the converter.
FEATURES
I
Easy Interfacing to Microprocessor, or Operates as a
'Stand-Alone' Converter
I
Fast: 10 microseconds Conversion time Guaranteed
I
No Missing Codes over Operating Temperature Range
I
Data Outputs Three-State TTL Compatible, other
Logic Inputs and Output TTL and CMOS Compatible
I
Choice of On-Chip or External Reference Voltage
I
Ratiometric Operation
I
Unipolar or Bipolar Input Ranges
I
Complementary to ZN428 DAC
I
Commercial or Military Temperature Range
Fig.1 Pin connection - top view
ORDERING INFORMATION
ZN427J8 (DC18)
ZN427E8 (DP18)
ZN427E8
ZN427J8
DP18
DC18
0
°
C to +70
°
C
-55
°
C to +125
°
C
Device type
Package
Operating temperature
WR (START CONVERSION)
BUSY (END OF CONVERSION)
BIT 8
(LSB)
RD (OUTPUT ENABLE)
BIT 7
CLOCK
BIT 6
BIT 5
R
EXT
BIT 4
V
IN
BIT 3
V
REF
IN
BIT 2
V
REF
OUT
BIT 1
(MSB)
GROUND
+V
CC
(+5V)
18
1
17
2
16
3
15
4
14
5
13
6
12
7
11
8
10
9
3-STATE BUFFERS
ANALOGUE VOLTAGE SWITCHES
R-2R LADDER
18
17
16
15
14
13
12
LSB
11
MSB
SUCCESSIVE
APPROXIMATION REGISTER
-
+
COMPARATOR
D TO A OUTPUT
VCC
(+5V)
10
CLOCK
INPUT
3
REXT
5
VIN
6
WR (START CONVERSION)
4
VREF IN
7
GROUND
9
VREF OUT
8
RD (OUTPUT ENABLE)
2
BUSY (END CONVERSION)
1
+2.5V
REFERENCE
相關(guān)PDF資料
PDF描述
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
ZN427J8 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
ZN428 8-BIT LATCHED INPUT D-A CONVERTER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
ZN428 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT LATCHED INPUT D-A CONVERTER
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