ADC0804LCN 8-Bit Microprocessor-Compatible Analog-to-Digital Converter (ADC) with Differential Inputs and Parallel Interface – DIP-20 Package

Description

The ADC0804LCN is a highly reliable, 8-bit Successive Approximation Register (SAR) Analog-to-Digital Converter (ADC) designed for seamless integration with microprocessor control buses. Specifically optimized for compatibility with INS8080A and NSC800 derivatives, this IC functions directly as memory-mapped I/O, eliminating the need for complex external interfacing logic. Its differential analog voltage inputs allow for excellent common-mode rejection and adjustable offset, while the voltage reference can be finely tuned to encode smaller analog spans to the full 8-bit resolution.

Featuring an on-chip clock generator and TTL/MOS compatible logic, the ADC0804LCN is both easy to deploy as a standalone device and simple to integrate into larger digital systems. Its robust design, which includes tri-state output latches for direct data bus driving, makes it a classic, cost-effective choice for signal processing, instrumentation, and educational electronics projects. The standard 20-pin PDIP package is perfectly suited for breadboard prototyping and through-hole PCB assembly.

Key Features

• Microprocessor Compatible: Designed for direct interfacing with standard 8-bit microprocessors without external logic.
• Differential Analog Inputs: Enhances common-mode rejection and allows for flexible zero-input offset adjustments.
• 8-Bit Resolution: Provides reliable digital conversion for general-purpose signal processing.
• Adjustable Voltage Reference: Easily scale the analog input range for maximum resolution on small voltage spans.
• On-Chip Clock: Integrated clock generator reduces the need for external timing components.
• Logic Compatibility: Inputs and outputs fully meet both MOS and TTL voltage level standards.
• Versatile Operation: Functions as a standalone converter or as a bus-mapped I/O device.

Applications

• Signal Processing: Ideal for converting analog sensor data into digital formats for analysis.
• Industrial Instrumentation: Reliable data acquisition for embedded control systems.
• Educational/Prototyping: A fundamental tool for teaching microprocessor interfacing and ADC operations.
• Custom Logic Control: Adding simple analog measurement capabilities to legacy or custom digital controllers.

Package Includes

• 1 x ADC0804LCN 8-Bit Analog to Digital Converter (PDIP-20)

Technical Specifications

Note: Product images are shown for illustrative purposes only; specific branding/manufacturer may vary based on availability. For comprehensive timing diagrams, bus interface protocols, and electrical characteristics, please refer to the official manufacturer datasheet.