DIGITAL TO ANALOG (D/A) CONVERTOR USING WEIGHTED RESISTOR NETWORK | DAC Trainer Apparatus

Description

The Digital to Analog (D/A) Convertor Using Weighted Resistor Network Apparatus is a precision educational trainer designed to demonstrate the conversion of digital binary inputs into a proportional analog output voltage using the weighted resistor technique. This apparatus helps students understand the fundamental principles of digital-to-analog conversion, resolution, accuracy, and linearity—key concepts in digital electronics and instrumentation.
Ideal for digital electronics laboratories, engineering colleges, universities, and technical training institutes.
✅ Key Features
🔢 Weighted Resistor Network DAC
Implements DAC using binary weighted resistor network
Converts digital inputs into corresponding analog voltage
Demonstrates stepwise analog output variation
🔌 Digital Input Section
Binary inputs through toggle switches or logic inputs
Supports multi-bit digital input (model dependent)
Enables study of DAC resolution and bit weighting
📈 Analog Output Measurement
Smooth and stable analog output voltage
High-accuracy voltmeter for output observation
Enables plotting of digital input vs analog output graph
⚙ Operational Amplifier Based Output Stage
Precision op-amp summing amplifier configuration
Ensures proper scaling and linear output response
Stable and noise-free operation
🧱 Educational Trainer Design
Clear circuit diagram printed on front panel
Well-labeled switches, terminals, and test points
Compact, rugged, and student-friendly enclosure
🛡 Safety & Reliability
Low-voltage, student-safe operation
Short-circuit protected power supply
High-quality components for long-term laboratory use
📘 Typical Applications
Study of Digital to Analog conversion techniques
Understanding weighted resistor DAC operation
Digital electronics and microprocessor interfacing basics
Engineering, diploma, and B.Sc. electronics practicals
💡 Why Choose This Apparatus?
Clear demonstration of DAC working principle
Accurate and repeatable analog output
Essential trainer for digital electronics education
Durable and reliable for academic laboratories