t2 t
參數(shù)資料
型號: LTC1417AIGN#TRPBF
廠商: Linear Technology
文件頁數(shù): 14/32頁
文件大?。?/td> 0K
描述: IC A/D CONV 14BIT SAMPLNG 16SSOP
標(biāo)準(zhǔn)包裝: 2,500
位數(shù): 14
采樣率(每秒): 400k
數(shù)據(jù)接口: MICROWIRE?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 27.5mW Unipolar; 44mW Bipolar
電壓電源: 雙 ±
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-SSOP(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 16-SSOP
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 2 個單端,單極;2 個單端,雙極;1 個差分,單極;1 個差分,雙極
21
LTC1417
sn1417 1417fas
12 11 10 987654321
0
FILL
ZEROS
D13
t2
t3
123456789 10 11 12 13 14 15 16
Hi-Z
DATA N
Hi-Z
(SAMPLE N)
DOUT
EXTCLKIN = 5
CONVST
t10
tCONV
t5
HOLD
SAMPLE
t6
t7
t9
1417 F19
t8
BUSY
SCLK
RD
D11
D12
CAPTURE ON
RISING CLOCK
D13
t12
t11
tLSCLK
tHSCLK
SCLK
VIL
VOH
VOL
DOUT
CAPTURE ON
FALLING CLOCK
LTC1417
BUSY
CONVST
14
13
9
12
7
CONVST
RD
SCLK
DOUT
P OR DSP
INT
C0
SCK
MISO
APPLICATIONS INFORMATION
WU
U
Figure 19. Internal Conversion Clock Selected. Data Transferred After Conversion
Using an External SCLK. BUSY
↑ Indicates End of Conversion
MICROWIRE is a trademark of National Semiconductor Corporation.
Serial Data Output After a Conversion
Using an Internal Conversion Clock and an External Data
Clock. In this mode, data is output after the end of each
conversion and before the next conversion is started
(Figure 19). The internal clock is used as the conversion
clock and an external clock is used for the SCLK. This
mode is useful in applications where the processor acts as
a serial bus master device. This mode is SPI and
MICROWIRE
TM compatible. It also allows operation when
the SCLK frequency is very low (less than 30kHz). To
select the internal conversion clock, tie EXTCLKIN high.
The external SCLK is applied to SCLK. RD can be used to
gate the external SCLK, such that data will clock only after
RD goes low and to three-state DOUT after data transfer. If
more than 16 SCLKs are provided, more zeros will be filled
in after the data word indefinitely.
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