ADC0838 8-Channel 8-Bit Serial I/O Analog-to-Digital Converter DIP-20 (ADC0838 DIP IC)
The ADC0838 is a high-performance CMOS 8-bit analog-to-digital converter featuring an 8-channel multiplexer and a serial I/O interface. It uses a successive approximation technique to provide high-speed conversion while maintaining a low pin count for space-efficient designs. The 8-channel multiplexer is software-configurable, allowing for eight single-ended inputs, four differential input pairs, or various combinations of both.
This IC is primarily used in multi-channel data acquisition, industrial process control, and battery-operated instrumentation. It is a highly versatile component for Arduino electronics projects in India that require monitoring a large number of analog sensors while conserving digital I/O pins through a simple serial communication protocol.
Key Features
- 8-channel multiplexer with software-programmable configuration
- 8-bit resolution with no missing codes
- Simple serial I/O interface for minimal microprocessor pin usage
- Operates ratiometrically or with 5VDC or span adjusted voltage reference
- Single 5V supply operation
- Low power consumption for battery-efficient designs
- Logic-level compatible with TTL and CMOS devices
- No zero or full-scale adjust required in most applications
Specifications
- IC Type = 8-Channel 8-Bit Serial ADC
- Architecture = Successive Approximation (SAR)
- Resolution = 8 Bits
- Total Unadjusted Error = +/- 1 LSB
- Supply Voltage = 4.5V to 6.3V (5V Typical)
- Package Type = DIP
- Number of Pins = 20
- Mounting Type = Through-Hole
- Operating Temperature = -40 to 85 degrees Celsius
Interfaces
- VCC = Positive Supply Voltage (5V)
- DGND = Digital Ground (0V)
- AGND = Analog Ground (0V)
- CH0-CH7 = 8 Independent Analog Input Channels
- CLK = External Clock Input
- DI = Serial Data Input (Channel Selection)
- DO = Serial Data Output
- CS = Chip Select (Active Low)
- SARS = Successive Approximation Register Status Output
- VREF = Reference Voltage Input
