ADC0808 8-Channel 8-Bit Analog-to-Digital Converter DIP-28 (ADC0808 OG DIP IC)
The ADC0808 is a high-performance CMOS integrated circuit that combines an 8-bit analog-to-digital converter (ADC) with an 8-channel multiplexer and microprocessor-compatible control logic. It utilizes a successive approximation register (SAR) technique for high-speed conversion. The integrated 8-channel multiplexer allows the IC to directly access any of the 8 single-ended analog signals, eliminating the need for external channel selection circuitry.
This IC is primarily used in multi-channel data acquisition systems, process control, and automotive instrumentation. It is an essential component for Arduino electronics projects in India that require monitoring multiple analog sensors (such as temperature, light, and pressure) simultaneously through a single 8-bit parallel data bus.
Key Features
- Integrated 8-channel multiplexer with address logic
- 8-bit resolution with no missing codes
- Successive approximation conversion technique
- Easy interface to all microprocessors and microcontrollers
- Ratiometric conversion or with 5VDC or span adjusted voltage reference
- Latched 3-state outputs for direct connection to data buses
- Latched address inputs for stable channel selection
- No zero or full-scale adjust required in most applications
Specifications
- IC Type = 8-Channel 8-Bit A/D Converter
- Architecture = Successive Approximation (SAR)
- Resolution = 8 Bits
- Total Unadjusted Error = +/- 1/2 LSB or +/- 1 LSB
- Conversion Time = 100 microseconds (at 640 kHz)
- Supply Voltage = 4.5V to 6.0V (5V Typical)
- Package Type = DIP
- Number of Pins = 28
- Mounting Type = Through-Hole
- Operating Temperature = -40 to 85 degrees Celsius
Interfaces
- IN0-IN7 = 8 Independent Analog Inputs
- ADD A, B, C = 3-Bit Address Inputs for Channel Selection
- ALE = Address Latch Enable
- START = Start Conversion Input
- EOC = End of Conversion Output
- OE = Output Enable
- CLOCK = External Clock Input
- VCC = Positive Supply Voltage (5V)
- GND = Ground (0V)
- VREF(+) = Positive Reference Voltage
- VREF(-) = Negative Reference Voltage
- 2-1 to 2-8 = 8-Bit Parallel Digital Data Outputs
