参数资料
型号: LTC1291CCN8#PBF
厂商: Linear Technology
文件页数: 11/20页
文件大小: 0K
描述: IC DATA ACQ SYSTEM 12BIT 8-DIP
标准包装: 50
类型: 数据采集系统(DAS)
分辨率(位): 12 b
数据接口: 串行,并联
电压电源: 单电源
电源电压: 5V
工作温度: 0°C ~ 70°C
安装类型: 通孔
封装/外壳: 8-DIP(0.300",7.62mm)
供应商设备封装: 8-PDIP
包装: 管件
产品目录页面: 1346 (CN2011-ZH PDF)
19
LTC1291
1291fa
Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However,
no responsibility is assumed for its use. Linear Technology Corporation makes no representation that
the interconnection of its circuits as described herein will not infringe on existing patent rights.
U
S
A
O
PPLICATI
WU
U
I FOR ATIO
data is output MSB-first. CS is driven at 1/64, the clock
frequency by the 74HC393 and DOUT outputs the data.
The output data from the DOUT pin can be viewed on a
oscilloscope that is set up to trigger on the falling edge
of CS (Figure 17).
A “Quick Look” Circuit for the LTC1291
Users can get a quick look at the function and timing of
the LTC1291 by using the following simple circuit
(Figure 16). DIN is tied to VCC. This requires VIN be
applied to CH1 with respect to the ground plane. The
Figure 16. “Quick Look” Circuit for the LTC1291
A1
CLR1
1QA
1QB
1QC
1QD
GND
VCC
A2
CLR2
2QA
2QB
2QC
2QD
74HC393
0.1
F
VIN
TO OSCILLOSCOPE
0.1
F
5V
22
F TANTALUM
f
f/64
CLOCK IN 1MHz
LTC1291 F16
VCC (VREF)
CLK
DOUT
DIN
LTC1291
CS
CH0
CH1
GND
+
CLK
CS
D
OUT
NULL
BIT
MSB
(B11)
LSB
(B0)
FILLS WITH
ZEROES
VERTICAL: 5V/DIV
HORIZONTAL: 5
s/DIV
Figure 17. Scope Trace of the LTC1291 "Quick Look"
Circuit Showing Output 101010101010 (AAAHEX)
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