Overview
The AD779JN is a 14-bit monolithic analog-to-digital converter (ADC) produced by Analog Devices Inc. This integrated circuit combines a high-speed sample-hold amplifier (SHA), an ADC, a voltage reference, and clock generation circuitry on a single chip. The AD779JN is designed to minimize external component requirements, providing a fully specified sampling A/D function that is unattainable with discrete designs. It operates from +5 V and ±12 V supplies and is available in a 28-pin plastic DIP package.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Number of Bits | 14 | |
| Sampling Rate | 128 kSPS | |
| Reference Type | External, Internal | |
| Supply Voltage - Digital | +5 V | V |
| Supply Voltage - Analog | ±12 V | V |
| Package / Case | 28-Pin Plastic DIP | |
| Operating Temperature | 0°C to +70°C | °C |
| Number of Inputs | 1 | |
| Input Type | Single Ended | |
| Data Interface | Parallel | |
| Power Dissipation | 560 mW (typ) | mW |
Key Features
- Complete Integration: Combines a high-speed sample-hold amplifier, 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.
- AC and DC Specifications: Fully specified and tested for both AC and DC parameters, making it suitable for various applications including control, measurement, and signal processing.
- MIL-STD-883 Compliance: Available in versions compliant with MIL-STD-883, ensuring high reliability in military and other demanding environments.
Applications
- Signal Processing: The AD779JN is valuable in signal processing applications due to its specified AC parameters such as S/N+D ratio, THD, and IMD.
- Control and Measurement: Suitable for control and measurement applications where DC accuracy specifications such as INL, gain, and offset are crucial.
- Data Acquisition Systems: Ideal for data acquisition systems requiring high precision and speed of data transmission.
- Industrial and Military: Its reliability and compliance with MIL-STD-883 make it suitable for industrial and military applications.
Q & A
- What is the resolution of the AD779JN ADC?
The AD779JN has a resolution of 14 bits.
- What is the sampling rate of the AD779JN?
The sampling rate of the AD779JN is 128 kSPS.
- What are the supply voltages for the AD779JN?
The AD779JN operates from +5 V and ±12 V supplies.
- What type of package is the AD779JN available in?
The AD779JN is available in a 28-pin plastic DIP package.
- What is the operating temperature range of the AD779JN?
The operating temperature range of the AD779JN is 0°C to +70°C.
- Is the AD779JN compliant with any military standards?
Yes, the AD779JN is available in versions compliant with MIL-STD-883.
- What type of data interface does the AD779JN use?
The AD779JN uses a parallel data interface.
- What is the power dissipation of the AD779JN?
The power dissipation of the AD779JN is typically 560 mW.
- What are some key applications of the AD779JN?
The AD779JN is suitable for signal processing, control and measurement, data acquisition systems, and industrial and military applications.
- Does the AD779JN require external calibration?
No, the AD779JN does not require external calibration due to factory trimming.
