Overview
The AD790JR-REEL7 is a fast and precise voltage comparator produced by Analog Devices Inc. This device is known for its exceptional versatility and ease of use. It operates with either a single +5 V supply or a dual ±15 V supply, allowing its inputs to be referred to ground in single-supply mode, a feature not commonly found in other comparators. The AD790 is fabricated using Analog Devices' Complementary Bipolar (CB) process, which provides a combination of fast response time (45 ns maximum propagation delay) and outstanding input voltage resolution (1 mV maximum).
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Propagation Delay (tPD) | 40 | 45 | 45 | ns |
| Input Offset Voltage | 0.2 | 1.0 | 1.0 | mV |
| Input Hysteresis Voltage | 0.3 | 0.4 | 0.6 | mV |
| Differential Input Voltage | 15 | V | ||
| Output HIGH Voltage (VOH) | 4.3 | 4.45 | 4.45 | V |
| Output LOW Voltage (VOL) | 0.35 | 0.5 | 0.5 | V |
| Bias Current (Either Input) | 1.8 | 3.5 | 5 | µA |
| Power Dissipation | 60 | mW | ||
| Operating Temperature Range | 0°C | 70°C |
Key Features
- Fast propagation delay of 45 ns maximum.
- Operates from either a single +5 V supply or a dual ±15 V supply.
- Inputs can be referred to ground in single-supply mode.
- Low glitch output stage to minimize power supply disturbances and unwanted oscillations.
- CMOS or TTL compatible output.
- Built-in hysteresis to handle both slow, low-level and fast, large amplitude signals.
- Latching function for synchronous operation.
- Available in 8-pin plastic and hermetic CerDIP packages, and 8-lead SOIC packages.[
Applications
- Zero-crossing detectors.[
- Overvoltage detectors.[
- Pulse-width modulators.[
- Precision rectifiers.[
- Discrete A/D converters.[
- Delta-Sigma modulator A/Ds.[
Q & A
- What is the maximum propagation delay of the AD790JR-REEL7?
The maximum propagation delay is 45 ns.
- What are the possible supply voltage configurations for the AD790JR-REEL7?
The device can operate from either a single +5 V supply or a dual ±15 V supply.
- Can the inputs of the AD790JR-REEL7 be referred to ground in single-supply mode?
- What is the significance of the low glitch output stage in the AD790JR-REEL7?
The low glitch output stage minimizes power supply disturbances and unwanted oscillations.
- Is the AD790JR-REEL7 compatible with CMOS or TTL logic?
- What is the purpose of the built-in hysteresis in the AD790JR-REEL7?
The built-in hysteresis allows the device to handle both slow, low-level and fast, large amplitude signals.
- Does the AD790JR-REEL7 have a latching function?
- In what packages is the AD790JR-REEL7 available?
- What are some common applications of the AD790JR-REEL7?
- What is the maximum differential input voltage the AD790JR-REEL7 can handle?
