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參數(shù)資料
| 型號： | ADS8517IPWR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | ADC |
| 英文描述： | 1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL/PARALLEL ACCESS, PDSO28 |
| 封裝： | GREEN, PLASTIC, TSSOP-28 |
| 文件頁數(shù)： | 5/38頁 |
| 文件大?。?/td> | 948K |
| 代理商： | ADS8517IPWR |
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SERIAL OUTPUT
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
ADS8517
+5 V
+
ConvertPulse
40nsmin
0.1 mF
10 mF
+
NC
(1)
BUSY
R/C
SDATA
±10 V
+
NC
(1)
NC
(1)
NC
(1)
NC
(1)
NC
(1)
NC
(1)
NC
(1)
DATACLK
NOTE:(1)NC=notconnected.
2.2 F
m
22 F
m
+1.8V
0.1 F
m
www.ti.com ................................................................................................................................................. SLAS527A – SEPTEMBER 2008 – REVISED JUNE 2009
Figure 29 shows a basic circuit to operate the ADS8517 with a ±10-V input range and serial output. Taking R/C
(pin 22) low for 40 ns (5
s max) initiates a conversion and outputs valid data from the previous conversion on
SDATA (pin 19) synchronized to 16 clock pulses output on DATACLK (pin 18). BUSY (pin 24) goes low and
stays low until the conversion completes and the serial data have been transmitted. Data are output in BTC
format, MSB first, and are valid on both the rising and falling edges of the data clock. BUSY going high can be
used to latch the data. All convert commands are ignored while BUSY is low.
The ADS8517 begins tracking the input signal at the end of the conversion. Allowing 5
s between convert
commands assures accurate acquisition of a new signal.
Figure 29. Basic ±10-V Operation with Serial Output
Copyright 2008–2009, Texas Instruments Incorporated
13
Product Folder Link(s): ADS8517
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