参数资料
型号: LTC1098CN8#PBF
厂商: Linear Technology
文件页数: 21/32页
文件大小: 0K
描述: IC A/D CONV 8BIT SRL IN/OUT 8DIP
标准包装: 50
位数: 8
采样率(每秒): 33k
数据接口: 串行
转换器数目: 1
功率耗散(最大): 780µW
电压电源: 单电源
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
输入数目和类型: 1 个差分,单极
产品目录页面: 1345 (CN2011-ZH PDF)
LTC1096/LTC1096L
LTC1098/LTC1098L
28
10968fc
A “Quick Look” Circuit for the LTC1096
Users can get a quick look at the function and timing of
the LT1096 by using the following simple circuit (Figure
13). 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 74C161 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 14). Note the LSB data is partially clocked
out before CS goes high.
Figure 15. The LTC1096’s High Impedance Input Connects
Directly to This Temperature Sensor, Eliminating Signal
Conditioning Circuitry in This 0°C to 70°C Thermometer
Figure 14. Scope Trace the LTC1096 “Quick Look” Circuit
Showing A/D Output 10101010 (AAHEX)
Figure 13. “Quick Look” Circuit for the LTC1096
Figure 15 shows a temperature measurement system.
The LTC1096 is connected directly to the low cost silicon
temperature sensor. The voltage applied to the VREF pin
adjusts the full scale of the A/D to the output range of the
sensor. The zero point of the converter is matched to the
zero output voltage of the sensor by the voltage on the
LTC1096’s negative input.
CLR
CLK
A
B
C
D
P
GND
VCC
RC
QA
QB
QC
QD
T
LOAD
74C161
VIN
TO OSCILLOSCOPE
CLOCK IN 150kHz MAX
10968 F13
VCC
CLK
DOUT
VREF
LTC1096
CS
CH0
CH1
GND
4.7μF
5V
+
LTC1096
+IN
–IN
VREF
CS
CLK
DOUT
VCC
GND
TO μP
63.4k
0.01μF
182k
0.01μF
LT1004-1.2
0.1μF
3V
75k
678Ω
13.5k
LM134
10968 F15
VERTICAL: 5V/DIV
HORIZONTAL: 10μs/DIV
NULL
BIT
CS
CLK
DOUT
MSB
(B7)
LSB
(B0)
LSB DATA
(B1)
10968 F14
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