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ICL7109 - ICL7109 12-Bit Microprocessor Compatible A/D Converter Datasheet - Buy ICL7109
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Features |
12-Bit Binary Dual Slope Integrating Analog-to-Digital Converter
Byte-Organized, TTL Compatible Three-State Outputs
RUN/HOLD Input and STATUS Output Can Be Used to Monitor and Control Conversion Timing
True Differential Input and Differential Reference
Operates At Up to 30 Conversions/s
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Pin Description |
Pin Number
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Description
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1
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GND - Digital Ground
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2
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STATUS - Status of Analog Conversion
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3
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POL - Polarity
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4
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OR - Overrange
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5
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B12 - Output Bit (Most Significant)
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6
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B11 - Output Bit
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7
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B10 - Output Bit
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8
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B9 - Output Bit
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9
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B8 - Output Bit
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10
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B7 - Output Bit
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11
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B6 - Output Bit
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12
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B5 - Output Bit
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13
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B4 - Output Bit
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14
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B3 - Output Bit
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15
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B2 - Output Bit
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16
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B1 - Output Bit (Least Significant)
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17
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TEST - Test Function
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18
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LBEN - Low Byte Enable
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19
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HBEN - High Byte Enable
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20
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CE/LOAD - Chip Enable/Load
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21
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MODE - See Data Sheet
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22
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OSC IN - Oscillator Input
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23
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OSC OUT - Oscillator Output
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24
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OSC SEL - Oscillator Select
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25
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BUF OSC OUT - Buffered Oscillator Output
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26
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RUN/HOLD - A/D Conversion
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27
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SEND - Data Send Signal Input
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28
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V- - Analog Negative Supply
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29
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REF OUT - Reference Voltage Output
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30
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BUFFER - Buffer Amplifier Output
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31
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AUTO-ZERO - Auto-Zero Mode
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32
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INTEGRATOR - Integrator Output
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33
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COMMON - Analog Common
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34
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INPUT LO - Differential Input Low
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35
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INPUT HI - Differential Input High
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36
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REF IN + - Differential Input Reference (Positive)
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37
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REF CAP + - Reference Capacitor (Positive)
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38
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REF CAP - - Reference Capacitor (Negative)
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39
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REF IN - - Differential Input Reference (Negative)
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40
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V+ - Positive Supply Voltage
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Pin Layout |
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Dimensional Drawing |
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Technical Data |
Data Sheet
Application Notes
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