參數(shù)資料
型號(hào): LTC1197IS8#PBF
廠商: Linear Technology
文件頁數(shù): 17/28頁
文件大?。?/td> 0K
描述: IC A/DCONV 10BIT W/SHTDWN 8-SOIC
標(biāo)準(zhǔn)包裝: 100
位數(shù): 10
采樣率(每秒): 500k
數(shù)據(jù)接口: MICROWIRE?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 25mW
電壓電源: 單電源
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 8-SOIC
包裝: 管件
輸入數(shù)目和類型: 1 個(gè)差分,單極
產(chǎn)品目錄頁面: 1345 (CN2011-ZH PDF)
24
LTC1197/LTC1197L
LTC1199/LTC1199L
A “Quick Look” Circuit for the LTC1197
Users can get a quick look at the function and timing of
the LTC1197 by using the following simple circuit (Figure
11). VREF is tied to VCC. VIN is applied to the +IN input and
the – IN input is tied to the ground. CS is driven at 1/16
the clock rate by the 74HC161 and DOUT outputs the data.
The output data from the DOUT pin can be viewed on an
oscilloscope that is set up to trigger on the falling edge
of CS (Figure 12). Note that after the LSB is clocked out,
the LTC1197 clocks out zeros until CS goes high. Also
note that with the resistor divider on DOUT the output
goes midway between VCC and ground when in the high
impedance mode.
Figure 11. “Quick Look” Circuit for the LTC1197
CLK
CS
D
OUT
FILL
ZEROES
HIGH
IMPEDANCE
2 NULL
BITS
MSB
(B9)
LSB
(B0)
VERTICAL: 5V/DIV
HORIZONTAL: 10
s/DIV
Figure 12. Scope Photo of the LTC1197 “Quick Look” Circuit
Waveforms Showing A/D Output 1001001001 (249HEX)
TYPICAL APPLICATIO S
U
CLR
CLK
A
B
C
D
P
GND
VCC
RC
QA
QB
QC
QD
T
LOAD
74HC161
VIN
TO OSCILLOSCOPE
DOUT CLK CS
1197/99 F11
VCC
CLK
DOUT
VREF
LTC1197
CS
+IN
–IN
GND
1
F
5V
10k
CLK IN 7.2MHz MAX
10k
5V
+
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