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ADC0809 8-bit A/D Converter Datasheet

Photograph
ADC0809CCN - ADC0809 8-bit A/D Convertor with 8-Channel Multiplexer

Features
  • 8-Channel A/D Inputs with Addressable Multiplexer
  • Easy Interface to All Microprocessors
  • Operates Ratiometrically or with 5Vdc
  • Output Meets TTL Requirements
  • On-chip Clock Generator
  • 0V to 5V Analog Input Voltage range with Single 5V Supply
  • No Zero or Full Scale Adjust Required

Pin Layout
ADC0809 pinout

Pin Description
Pin Number Description
1 IN3 - Analog Input 3
2 IN4 - Analog Input 4
3 IN5 - Analog Input 5
4 IN6 - Analog Input 6
5 IN7 - Analog Input 7
6 START - Start Conversion
7 EOC - End of Conversion
8 2(-5) - Tri-State Output Bit 5
9 OUT EN - Output Enable
10 CLK - Clock
11 Vcc - Positive Supply
12 Vref+ - Positive Voltage Reference Input
13 GND - Ground
14 2(-7) - Tri-State Output Bit 7
15 2(-6) - Tri-State Output Bit 6
16 Vref- - Voltage Reference Negative Input
17 2(-8) - Tri-State Output Bit 8
18 2(-4) - Tri-State Output Bit 4
19 2(-3) - Tri-State Output Bit 3
20 2(-2) - Tri-State Output Bit 2
21 2(-1) - Tri-State Output Bit 1
22 ALE - Address Latch Enable
23 ADD C - Address Input C
24 ADD B - Address Input B
25 ADD A - Address Input A
26 IN0 - Analog Input 0
27 IN1 - Analog Input 1
28 IN2 - Analog Input 2

Dimensional Drawing
ADC0809 IC Dimensional Drawing
ADC0809 IC Dimensional Drawing

Technical Data

Datasheet

National Semiconductor - ADC0809 Datasheet Datasheet

Application Notes