Overview
The AD779JD is a 14-bit monolithic analog-to-digital converter (ADC) designed by Analog Devices, Inc. This component is part of the AD779 series, which is known for its complete integration of a high-speed sample-hold amplifier (SHA), ADC, voltage reference, and clock generation circuitry on a single chip. This integration minimizes the need for external components, making it a robust solution for various data acquisition and signal processing applications. The AD779JD operates from +5 V and ±12 V supplies and is available in a 28-pin ceramic DIP package, ensuring reliability and ease of use in different environmental conditions.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 14 | 14 | 14 | Bits |
| Integral Nonlinearity (INL) | ±2 | ±1 | ±2 | LSB |
| Differential Nonlinearity (DNL) | ±1 | ±1 | ±1 | LSB |
| Unipolar Zero Error (@ +25°C) | 0.08 | 0.05 | 0.07 | % FSR |
| Bipolar Zero Error (@ +25°C) | 0.08 | 0.05 | 0.07 | % FSR |
| Gain Error (@ +25°C) | 0.12 | 0.09 | 0.11 | % FSR |
| Temperature Range | 0 | +70 | °C | |
| Supply Voltages | +5 V ± 10%, ±12 V ± 5% | V | ||
| Power Dissipation | 560 | mW | ||
| Package | 28-Pin Ceramic DIP |
Key Features
- Complete Integration: Combines a high-speed sample-hold amplifier (SHA), ADC, voltage reference, and clock generation circuitry on a single chip, minimizing external component requirements.
- Ease of Use: Designed for easy board layout with a single cycle read output compatible with 16-bit buses. Factory trimming eliminates the need for calibration modes or external trimming.
- Reliability: Utilizes Analog Devices’ monolithic BiMOS technology, ensuring long-term reliability compared to multichip and hybrid designs.
- Robust Functionality: Operates reliably in varying temperature environments and offers enhanced noise immunity for improved signal quality.
- MIL-STD-883 Compliance: Available in versions compliant with MIL-STD-883, making it suitable for military and aerospace applications.
Applications
- Signal Processing: Ideal for applications requiring high signal-to-noise ratio (SNR), low total harmonic distortion (THD), and low intermodulation distortion (IMD).
- Control and Measurement: Suitable for control and measurement applications where DC accuracy specifications such as INL, gain, and offset are critical.
- Military and Aerospace: Compliant with MIL-STD-883, making it a reliable choice for military and aerospace applications.
- Industrial and Instrumentation: Used in various industrial and instrumentation applications requiring precise data acquisition and reliable performance.
Q & A
- What is the resolution of the AD779JD ADC?
The AD779JD has a resolution of 14 bits.
- What are the operating supply voltages for the AD779JD?
The AD779JD operates from +5 V ± 10% and ±12 V ± 5% supplies.
- What is the typical power dissipation of the AD779JD?
The typical power dissipation is 560 mW.
- What type of package is the AD779JD available in?
The AD779JD is available in a 28-pin ceramic DIP package.
- Is the AD779JD compliant with any military standards?
Yes, the AD779JD is available in versions compliant with MIL-STD-883.
- What are the key features of the AD779JD in terms of integration?
The AD779JD integrates a high-speed sample-hold amplifier, ADC, voltage reference, and clock generation circuitry on a single chip.
- How does the AD779JD ensure ease of use?
The AD779JD is designed for easy board layout with a single cycle read output compatible with 16-bit buses and factory trimming that eliminates the need for calibration modes or external trimming.
- What technology does the AD779JD use to ensure reliability?
The AD779JD utilizes Analog Devices’ monolithic BiMOS technology, ensuring long-term reliability.
- In what temperature range does the AD779JD operate?
The AD779JD operates from 0°C to +70°C.
- What are some common applications for the AD779JD?
The AD779JD is suitable for signal processing, control and measurement, military and aerospace, and industrial and instrumentation applications.
