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參數(shù)資料
| 型號： | ADS7821UB |
| 英文描述： | 16-Bit 10ms Sampling CMOS ANALOG-to-DIGITAL CONVERTER |
| 中文描述： | 16位10ms的采樣CMOS模擬數(shù)字轉(zhuǎn)換器 |
| 文件頁數(shù)： | 4/10頁 |
| 文件大?。?/td> | 280K |
| 代理商： | ADS7821UB |
4
ADS7821
1
V
IN
Analog Input.
2
AGND1
Analog Ground. Used internally as ground reference point.
3
REF
Reference Input/Output. 2.2
μ
F tantalum capacitor to ground.
Reference Buffer Capacitor. 2.2
μ
F tantalum capacitor to ground.
Analog Ground.
4
CAP
5
AGND2
6
D15 (MSB)
O
Data Bit 15. Most Significant Bit (MSB) of conversion results. Hi-Z state when CS is HIGH, or when R/C is LOW.
7
D14
O
Data Bit 14. Hi-Z state when CS is HIGH, or when R/C is LOW.
8
D13
O
Data Bit 13. Hi-Z state when CS is HIGH, or when R/C is LOW.
9
D12
O
Data Bit 12. Hi-Z state when CS is HIGH, or when R/C is LOW.
10
D11
O
Data Bit 11. Hi-Z state when CS is HIGH, or when R/C is LOW.
11
D10
O
Data Bit 10. Hi-Z state when CS is HIGH, or when R/C is LOW.
12
D9
O
Data Bit 9. Hi-Z state when CS is HIGH, or when R/C is LOW.
13
D8
O
Data Bit 8. Hi-Z state when CS is HIGH, or when R/C is LOW.
14
DGND
Digital Ground.
15
D7
O
Data Bit 7. Hi-Z state when CS is HIGH, or when R/C is LOW.
16
D6
O
Data Bit 6. Hi-Z state when CS is HIGH, or when R/C is LOW.
17
D5
O
Data Bit 5. Hi-Z state when CS is HIGH, or when R/C is LOW.
18
D4
O
Data Bit 4. Hi-Z state when CS is HIGH, or when R/C is LOW.
19
D3
O
Data Bit 3. Hi-Z state when CS is HIGH, or when R/C is LOW.
20
D2
O
Data Bit 2. Hi-Z state when CS is HIGH, or when R/C is LOW.
21
D1
O
Data Bit 1. Hi-Z state when CS is HIGH, or when R/C is LOW.
22
D0 (LSB)
O
Data Bit 0. Lease Significant Bit (LSB) of conversion results. Hi-Z state when CS is HIGH, or when R/C is LOW.
23
BYTE
I
Swaps Pins 6 through 13 with Pins 15 through 22 when HIGH. See Figures 2 and 5.
24
R/C
I
With CS LOW and BUSY HIGH, a Falling Edge on R/C Initiates a New Conversion. With CS LOW, a rising edge on R/C
enables the parallel output.
25
CS
I
Internally OR’d with R/C. If R/C LOW, a falling edge on CS initiates a new conversion.
26
BUSY
O
At the start of a conversion, BUSY goes LOW and stays LOW until the conversion is completed and the digital outputs
have been updated.
27
V
ANA
V
DIG
Analog Supply Input. Nominally +5V. Decouple to ground with 0.1
μ
F ceramic and 10
μ
F tantalum capacitors.
Digital Supply Input. Nominally +5V. Connect directly to pin 27. Must be
≤
V
ANA
.
28
DIGITAL
I/O
PIN #
NAME
DESCRIPTION
TABLE I. Pin Assignments.
PIN CONFIGURATION
V
DIG
V
ANA
BUSY
CS
R/C
BYTE
D0 (LSB)
D1
D2
D3
D4
D5
D6
D7
V
IN
AGND1
REF
CAP
AGND2
D15 (MSB)
D14
D13
D12
D11
D10
D9
D8
DGND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
ADS7821
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADS7821P | CMOS Dual 4-Input NOR Gate 14-SO -55 to 125 |
| ADS7821U | 16-Bit 10ms Sampling CMOS ANALOG-to-DIGITAL CONVERTER |
| ADS7822 | CMOS Dual 4-Input NOR Gate 14-TSSOP -55 to 125 |
| ADS7822B | 12-Bit High Speed 2.7V microPower Sampling ANALOG-TO-DIGITAL CONVERTER |
| ADS7822C | CMOS Dual 4-Input NOR Gate 14-TSSOP -55 to 125 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADS7822 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:12-Bit, High-Speed, 2.7V microPower Sampling ANALOG-TO-DIGITAL CONVERTER |
| ADS7822B | 制造商:BB 制造商全稱:BB 功能描述:12-Bit High Speed 2.7V microPower Sampling ANALOG-TO-DIGITAL CONVERTER |
| ADS7822C | 制造商:BB 制造商全稱:BB 功能描述:12-Bit High Speed 2.7V microPower Sampling ANALOG-TO-DIGITAL CONVERTER |
| ADS7822CIDGKRAN | 制造商:Texas Instruments 功能描述: |
| ADS7822E | 制造商:TI 制造商全稱:Texas Instruments 功能描述:12-Bit, High-Speed, 2.7V microPower Sampling ANALOG-TO-DIGITAL CONVERTER |
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