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ICL7650CPD 参数 Datasheet PDF下载

ICL7650CPD图片预览
型号: ICL7650CPD
PDF下载: 下载PDF文件 查看货源
内容描述: 零漂移运算放大器 [Zero-Drift Operational Amplifier]
分类和应用: 运算放大器光电二极管斩波器
文件页数/大小: 24 页 / 846 K
品牌: Linear [ Linear ]
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LTC1052/LTC7652  
U
TYPICAL APPLICATIO S  
Direct Thermocouple-to-Frequency Converter  
R
T
COLD JUNCTION TEMPERATURE TRACKING  
1N4148  
+
TYPE K  
THERMOCOUPLE 41.4µV/°C  
STABILIZING AMP  
470  
1.8k*  
5V  
7
3
+
A
10k  
B
C
E
33k  
D
6
LTC1052  
1N914  
100k  
2
74C04  
8
4
0.68µF  
1µF  
1
0.1µF  
0.1µF  
OPTIONAL INPUT  
820pF  
FILTER-AND-OVERLOAD  
CLAMP  
– 5V  
3300pF  
150k**  
5V  
5V  
50k  
60°C TRIM  
74C04  
OUTPUT  
F
0Hz TO 600Hz  
0°C TO 60°C  
5V  
16  
– 5V  
33k**  
3k  
74C903  
A
LTC1043  
4.75k*  
1k*  
5
6
1µF  
*0.01% FILM-TRW MAR-6  
**TRW/MTR/5/ + 120  
0.1µF  
LT1004–1.2V  
2
R
= YELLOW SPRINGS INST. #44007  
T
100pF = POLYSTYRENE  
100pF  
FOR GENERAL PURPOSE (1mV FULL-SCALE)  
10-BIT A-TO-D, REMOVE THERMOCOUPLE—  
COLD JUNCTION NETWORK, GROUND POINT A,  
AND DRIVE LTC1052 POSITIVE INPUT  
COLD JUNCTION BIAS  
487*  
301k*  
187*  
LTC1052/7652 • TA16  
Direct 10-Bit Strain Gauge Digitizer  
5V  
74C00  
5V  
1000pF  
1
– 5V  
20  
STRAIN GAUGE  
TRANSDUCER  
28k  
14k  
CLOCK  
0.003µF  
20Ω  
5V  
Z
Z
= 350Ω  
3
2
IN  
+
= 350Ω  
OUT  
8
1k  
6
INTEGRATOR  
5V  
LM301A  
2N2905  
5V  
1000pF  
FREQUENCY  
OUT B  
4
2
3
7
10k  
5V  
14  
1
4 3  
7
– 5V  
1/2 74C903  
470k*  
6
2
5
LTC1052  
1/2 74C74  
5V  
8
+
FREQUENCY  
OUT A  
7
6
4
1
3.3M*  
1/2 LTC1043  
– 5V  
– 5V  
OUTPUT  
GATING  
0.01µF  
0.01µF  
BRIDGE DRIVE  
7
8
– 5V  
OUT A  
OUT B  
SW1  
= 1000 COUNTS FULL-SCALE  
DATA OUTPUT =  
1N4148  
1N4148  
*0.1% METAL FILM TRW MAR-5  
SW1 = MAIN CURRENT SWITCH  
SW2 = CURRENT LOADING COMPENSATION SWITCH  
11  
12  
16  
14  
– 5V  
3.3M  
CONNECT DIRECTLY  
ACROSS BRIDGE  
DRIVE POINTS  
100k  
SW2  
CONNECT TO BRIDGE  
END OF 470k RESISTOR  
13  
10k  
(OPTIONAL)  
TRANSDUCER ZERO NETWORK  
LTC1052/7652 • TA17  
+
22.3k*  
33µF  
1k*  
1052fa  
17  
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