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參數(shù)資料
| 型號： | ZN448D |
| 英文描述： | Converter IC |
| 中文描述： | 轉(zhuǎn)換器IC |
| 文件頁數(shù)： | 14/18頁 |
| 文件大?。?/td> | 289K |
| 代理商： | ZN448D |
ZN448/9
14
Fig.17 Unipolar operation component values
AIN
VREF IN
TO PIN 6
R1 11k
R2 5k6
680k
R3
P2
P1 10k
GAIN
ADJUST
1M
ZERO
ADJUST
± 2% RESISTORS
±20% POTENTIOMETERS
AIN
VREF IN
TO PIN 6
R1 5k6
R2 8k2
680k
R3
P2
P1 5k
GAIN
ADJUST
1M
ZERO
ADJUST
+5V FULL-SCALE
+10V FULL-SCALE
Unipolar adjustment prodedure
(i) Apply continuous convert pulses at intervals long enough
to allow a complete conversion and monitor the digital
outputs.
(ii) Apply full-scale minus 1.5LSB to A
and adjust off-set until
the bit 8 (LSB) output just flickers between 0 and 1 with all
other bits at 0.
(iii) Apply 0.5LSB to A
and adjust zero until 8 bit just flickers
between 0 and 1 with all other bits at 1.
Unipolar setting up points
FS - 1.5LSB
4.9707V
9.9414V
1LSB = FS
256
Input range, +FS
+5V
+10V
0.5LSB
9.8mV
19.5mV
Bipolar logic coding
Analogue input (A
)
(Nominal code centre value)
FS - 1LSB
FS - 2LSB
0.75FS
0.5FS + 1LSB
0.5FS
0.5FS - 1LSB
0.25FS
1LSB
0
Output code
(offset binary)
11111111
11111110
11000000
10000001
10000000
01111111
01000000
00000001
00000000
相關PDF資料 |
PDF描述 |
|---|---|
| ZN448J | Converter IC |
| ZN449J | Converter IC |
| ZN448E | TV 53C 40#22D 9#16 4#12 PIN RE |
| ZN449 | TV 53C 40#22D 9#16 4#12 PIN RE |
| ZN449D | 8-BIT MICROPROCESSOR COMPATIBLE A-D CONVERTER |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ZN448E | 制造商:GPS 功能描述: |
| ZN448J | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Converter IC |
| ZN449 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT MICROPROCESSOR COMPATIBLE A-D CONVERTER |
| ZN449D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT MICROPROCESSOR COMPATIBLE A-D CONVERTER |
| ZN449E | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT MICROPROCESSOR COMPATIBLE A-D CONVERTER |
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