AD779JDZ

Product Overview

• Category: Integrated Circuit (IC)
• Use: Analog-to-Digital Converter (ADC)
• Characteristics:
  • High resolution
  • Low power consumption
  • Wide input voltage range
  • Differential input configuration
• Package: DIP (Dual In-line Package)
• Essence: Converts analog signals to digital data
• Packaging/Quantity: Typically sold in tubes of 25 units

Specifications

• Resolution: 24 bits
• Input Voltage Range: ±Vref
• Power Supply: +5V
• Conversion Rate: Up to 470 samples per second
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The AD779JDZ has a total of 20 pins. The pin configuration is as follows:

1. Vref-
2. Vref+
3. AGND
4. AIN1(-)
5. AIN1(+)
6. AVDD
7. DVDD
8. CLK
9. DIN
10. DOUT
11. SCLK
12. CS
13. RDY
14. NC
15. NC
16. NC
17. NC
18. NC
19. NC
20. Vss

Functional Features

• High-resolution ADC with 24-bit output
• Differential input configuration for accurate measurements
• Low power consumption for energy-efficient applications
• Wide input voltage range allows for versatile signal conversion
• Fast conversion rate of up to 470 samples per second

Advantages and Disadvantages

Advantages

• High resolution provides precise measurement capabilities
• Low power consumption extends battery life in portable devices
• Wide input voltage range accommodates various signal levels
• Differential input configuration reduces common-mode noise

Disadvantages

• Limited number of available pins for additional functionalities
• Relatively slower conversion rate compared to some other ADCs
• Requires external voltage reference for accurate measurements

Working Principles

The AD779JDZ is based on the successive approximation register (SAR) architecture. It utilizes a combination of analog and digital circuitry to convert analog signals into digital data. The input signal is sampled, amplified, and then compared to a reference voltage. The converter iteratively adjusts the digital representation of the input signal until it converges to the closest digital value. This process is repeated for each sample, resulting in a high-resolution digital output.

Application Field Plans

The AD779JDZ is commonly used in various applications that require high-precision analog-to-digital conversion. Some potential application fields include:

1. Industrial automation: Measurement and control systems
2. Medical devices: Patient monitoring equipment
3. Test and measurement instruments: Data acquisition systems
4. Energy management: Power monitoring and metering
5. Scientific research: Laboratory equipment and experiments

Alternative Models

For users seeking alternative options, the following ADC models can be considered:

1. AD778JDZ: 16-bit resolution, lower cost alternative
2. AD779CDZ: 24-bit resolution, surface mount package
3. AD779EDZ: 24-bit resolution, extended temperature range

These models offer similar functionality and performance but may vary in terms of package type, cost, or specific features.

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