Overview
The AD790JRZ-REEL, 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 ensures a combination of fast response time and outstanding input voltage resolution. The AD790 can operate from either a single +5 V supply or a dual ±15 V supply, making it adaptable to various application requirements. Its unique features include a low-glitch output stage and built-in hysteresis, which minimize the chance of unwanted oscillations and make it suitable for handling both slow, low-level signals and fast, large amplitude signals.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Propagation Delay | 45 ns | |
| Input Offset Voltage (Vos) | 450 μV | |
| Power Supply Rejection Ratio (PSRR) | 90 dB | |
| Common Mode Rejection Ratio (CMRR) | 95 dB | |
| Supply Voltage (Single/Dual) | +5 V or ±15 V | |
| Package Type | 8-Lead SOIC | |
| Temperature Range | Commercial: 0°C to 70°C, Industrial: -40°C to +85°C, Military: -55°C to +125°C | |
| Output Type | Rail-to-Rail, Compatible with CMOS and TTL Logic |
Key Features
- Fast Response Time: The AD790 has a propagation delay of 45 ns, making it suitable for high-speed applications.
- Precision Input Voltage Resolution: The device offers an input voltage resolution of 1 mV max, ensuring high accuracy.
- Low Glitch Output Stage: The output stage is designed to minimize large current spikes, reducing power supply disturbances and unwanted oscillations.
- Built-in Hysteresis: This feature helps in minimizing the chance of unwanted oscillations and makes the device suitable for handling both slow and fast signals.
- Wide Supply Voltage Range: The AD790 can operate from a single +5 V supply or dual ±15 V supply, offering flexibility in application design.
- Latching Function: The device includes a latching function, making it suitable for applications requiring synchronous operation.
Applications
- Analog Signal Processing: The AD790 is suitable as a general-purpose comparator in various analog signal processing applications.
- Data Acquisition: Its precision and speed make it ideal for data acquisition systems.
- Full-Wave Rectification: The device can be used in full-wave rectifier circuits to handle low-level and high-amplitude signals.
- Bipolar to CMOS/TTL Translation: It can translate bipolar signals to CMOS or TTL logic levels.
- Synchronous Operations: The latching function makes it suitable for applications requiring synchronous operation.
Q & A
- What is the propagation delay of the AD790?
The propagation delay of the AD790 is 45 ns.
- What are the possible supply voltage configurations for the AD790?
The AD790 can operate from either a single +5 V supply or a dual ±15 V supply.
- What is the input offset voltage (Vos) of the AD790?
The input offset voltage (Vos) of the AD790 is 450 μV.
- What is the common mode rejection ratio (CMRR) of the AD790?
The common mode rejection ratio (CMRR) of the AD790 is 95 dB.
- What package types are available for the AD790?
The AD790 is available in 8-Lead SOIC, PDIP, and CerDIP packages.
- What are the temperature ranges for different grades of the AD790?
The AD790 is available in commercial (0°C to 70°C), industrial (-40°C to +85°C), and military (-55°C to +125°C) temperature ranges.
- Does the AD790 have a latching function?
- How does the AD790's output stage minimize oscillations?
The AD790's output stage incorporates a low-glitch design that reduces power supply disturbances and unwanted oscillations.
- What are some typical applications of the AD790?
The AD790 is used in analog signal processing, data acquisition, full-wave rectification, and bipolar to CMOS/TTL translation.
- Is the AD790 compatible with CMOS and TTL logic?
