Overview
The AD790JR, produced by Analog Devices Inc., is a fast and precise voltage comparator known for its versatility and ease of use. This device is fabricated using Analog Devices' Complementary Bipolar (CB) process, which provides a combination of fast response time and outstanding input voltage resolution of up to 1 mV. The AD790JR can operate from either a single +5 V supply or a dual ±15 V supply, making it highly adaptable to various application requirements. It features a 'low glitch' output stage that minimizes power supply disturbances and unwanted oscillations, enhancing its reliability and performance.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Propagation Delay | 45 ns | |
| Input Voltage Resolution | 1 mV | |
| Supply Voltage Range | Single: 4.5 V to 7 V, Dual: ±5 V, ±12 V, ±15 V | V |
| Temperature Range | Commercial: 0°C to 70°C, Industrial: -40°C to +85°C, Military: -55°C to +125°C | °C |
| Package Types | 8-Lead PDIP, 8-Lead SOIC, 8-Lead CerDIP | |
| Output Stage | Low Glitch, Symmetric Output |
Key Features
- Fast Response Time: 45 ns propagation delay, making it suitable for high-speed applications.
- Precision Input Voltage Resolution: Up to 1 mV, ensuring high accuracy in signal comparison.
- Flexible Supply Voltage: Can operate from single or dual supply voltages, including ±15 V, enhancing its versatility.
- Low Glitch Output Stage: Minimizes power supply disturbances and unwanted oscillations, improving overall performance.
- Latching Function: Suitable for applications requiring synchronous operation.
- Built-in Hysteresis: Reduces the chance of unwanted oscillations, especially in noisy environments.
Applications
- Analog Signal Processing: Ideal for general-purpose comparator roles in analog signal processing and data acquisition.
- Data Acquisition Systems: Suitable for systems requiring fast and precise signal comparison.
- Precision Full-Wave Rectifiers: Can be used in circuits that require rectification of low-level signals as small as a few mV or high-amplitude signals up to 10 V.
- Bipolar to CMOS/TTL Translation: Useful in translating bipolar signals to CMOS or TTL logic levels.
Q & A
- What is the propagation delay of the AD790JR?
The propagation delay of the AD790JR is 45 ns.
- What is the input voltage resolution of the AD790JR?
The input voltage resolution of the AD790JR is up to 1 mV.
- What are the possible supply voltage configurations for the AD790JR?
The AD790JR can operate from a single supply (4.5 V to 7 V) or dual supplies (±5 V, ±12 V, ±15 V).
- What are the temperature ranges for the different grades of the AD790JR?
The AD790JR is available in commercial (0°C to 70°C), industrial (-40°C to +85°C), and military (-55°C to +125°C) temperature ranges.
- What types of packages are available for the AD790JR?
The AD790JR is available in 8-Lead PDIP, 8-Lead SOIC, and 8-Lead CerDIP packages.
- Does the AD790JR have a latching function?
Yes, the AD790JR has a latching function, making it suitable for applications requiring synchronous operation.
- How does the 'low glitch' output stage of the AD790JR benefit its performance?
The 'low glitch' output stage minimizes power supply disturbances and unwanted oscillations, improving overall performance and reliability.
- Can the AD790JR be used in precision full-wave rectifier circuits?
Yes, the AD790JR is suitable for use in precision full-wave rectifier circuits due to its high speed and precision.
- Is the AD790JR compatible with CMOS and TTL logic levels?
Yes, the AD790JR's output stage is compatible with both CMOS and TTL logic levels.
- What are some common applications of the AD790JR?
The AD790JR is commonly used in analog signal processing, data acquisition systems, precision full-wave rectifiers, and bipolar to CMOS/TTL translation circuits.
