ADC0809 8-bit 8-Channel ADC Analog to Digital Converter IC


  • Easy Interface to All Microprocessors
  • No Zero or Full-Scale Adjust Required
  • 8-Channel Multiplexer with Address Logic
  • 0V to VCC Input Range
  • ADC0809 Equivalent to MM74C949-1

160.00 (ex. GST)

The 0809ADC data acquisition element is a monolithic CMOS device with an 8-bit ADC, 8-channel multiplexer, and microprocessor compatible control logic. The 8-bit Analog to Digital converter utilizes successive approximation as a conversion technique. The converter features a high impedance chopper stabilized comparator, a 256R voltage divider with an analog switch tree, and a successive approximation register. The 8-channel multiplexer can directly access any 8-single-ended analog signals.


  • Easy Interface to All Microprocessors.
  • Operates Ratio-metrically, 5 VDC, Analog Span Adjusted Voltage Reference.
  • No Zero or Full-Scale Adjust Required.
  • 8-Channel Multiplexer with Address Logic.
  • 0V to VCC(~6) Input Range.
  • Outputs meet TTL Voltage Level Specifications.
  • ADC0809 Equivalent to MM74C949-1.

Key Specifications:

Parameters Specification
Part number ADC0809-N
Resolution (Bits) 8
Sample rate (Max) (kSPS) 10
Number of input channels 8
Interface Parallel
Operating temperature range ( C ) -40 to 85
Package Group PLCC | 28
Power consumption (Typ) (mW) 15
Package size: mm2:W x L (PKG) 28PLCC: 155 mm2: 12.45 x 12.45 (PLCC | 28)
Architecture SAR
Input type Single-Ended
Multi-channel configuration Multiplexed
Input range (Max) (V) 6
Input range (Min) (V) 0
Analog voltage AVDD (Min) (V) 4.5
Analog voltage AVDD (Max) (V) 6
Digital supply (Min) (V) 4.5
Digital supply (Max) (V) 6
INL (Max) (+/-LSB) 1.25
Rating See Data Sheet


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