ADC0804LCN/NOPB

Product Overview

• Category: Analog-to-Digital Converter (ADC)
• Use: Converts analog signals into digital data
• Characteristics:
  • 8-bit resolution
  • Single channel input
  • Compatible with microcontrollers and digital systems
• Package: PDIP (Plastic Dual In-Line Package)
• Essence: Provides a simple and cost-effective solution for analog-to-digital conversion
• Packaging/Quantity: Available in tubes of 25 units

Specifications

• Resolution: 8 bits
• Input Voltage Range: 0V to Vref (typically 5V)
• Conversion Time: 100 microseconds (max)
• Supply Voltage: 5V (±10%)
• Power Consumption: 15mW (typical)

Pin Configuration

The ADC0804LCN/NOPB has a total of 20 pins. The pin configuration is as follows:

1. INTR (Interrupt Output)
2. Vref- (Negative Reference Voltage)
3. Vref+ (Positive Reference Voltage)
4. AGND (Analog Ground)
5. Vin (Analog Input)
6. CLK (Clock Input)
7. START (Start Conversion Input)
8. EOC (End of Conversion Output)
9. D0 (Digital Output Bit 0)
10. D1 (Digital Output Bit 1)
11. D2 (Digital Output Bit 2)
12. D3 (Digital Output Bit 3)
13. D4 (Digital Output Bit 4)
14. D5 (Digital Output Bit 5)
15. D6 (Digital Output Bit 6)
16. D7 (Digital Output Bit 7)
17. CS (Chip Select Input)
18. WR (Write Input)
19. RD (Read Input)
20. Vcc (Supply Voltage)

Functional Features

• Single channel input with 8-bit resolution
• Easy interfacing with microcontrollers and digital systems
• Internal clock generator for simplified operation
• End of conversion (EOC) signal for synchronization
• Low power consumption for energy-efficient applications

Advantages

• Simple and cost-effective solution for analog-to-digital conversion
• Wide input voltage range allows for versatile applications
• Compatible with various microcontrollers and digital systems
• Fast conversion time for real-time data acquisition

Disadvantages

• Limited resolution compared to higher-bit ADCs
• Single channel input restricts simultaneous conversion of multiple signals
• Requires external reference voltage for accurate conversions

Working Principles

The ADC0804LCN/NOPB operates on the principle of successive approximation. It samples the analog input voltage and compares it with a reference voltage. The converter then generates an 8-bit digital output representing the magnitude of the input voltage.

The conversion process is initiated by a start signal and controlled by an internal clock. Once the conversion is complete, the end of conversion (EOC) signal is generated, indicating that the digital output is ready for retrieval.

Application Field Plans

The ADC0804LCN/NOPB finds applications in various fields, including:

1. Industrial automation: Monitoring and control of analog sensors and actuators.
2. Data acquisition systems: Converting analog signals from sensors into digital data for processing and analysis.
3. Instrumentation: Measurement and monitoring of physical quantities such as temperature, pressure, and voltage.
4. Communication systems: Analog-to-digital conversion of voice signals for transmission and processing.
5. Robotics: Conversion of analog sensor inputs for controlling robot movements and interactions.

Alternative Models

Other alternative models that provide similar functionality to the ADC0804LCN/NOPB include:

1. ADC0808: 8-bit ADC with multiplexed input channels.
2. ADC0809: 8-bit ADC with parallel output and multiplexed input channels.
3. ADC0801: 8-bit ADC with a single-ended analog input.

These alternative models offer different features and pin configurations, allowing users to choose the most suitable option for their specific requirements.

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