Overview
The OP279GSZ-REEL, produced by Analog Devices Inc., is a rail-to-rail, high output current operational amplifier designed for low voltage applications. It is part of the OP279 series, which is known for its high output current drive capability and low distortion, making it suitable for a variety of applications including multimedia, telecom, and other low supply voltage scenarios. The amplifier operates on a single supply voltage ranging from 5 V to 12 V and is stable with capacitive loads up to 10 nF. Its unique input stage maintains a wide common-mode range and low distortion, even in single supply designs.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | VOUT = 2.5 V | ±4 mV | mV | ||
| Input Bias Current | IB | VOUT = 2.5 V, TA = 25°C | ±300 nA | ±700 nA | nA | |
| Input Offset Current | IOS | VOUT = 2.5 V, TA = 25°C | ±50 nA | ±100 nA | nA | |
| Input Voltage Range | VCM | 0 | 5 V | V | ||
| Common-Mode Rejection Ratio | CMRR | VCM = 0 V to 5 V | 56 dB | 66 dB | dB | |
| Slew Rate | SR | RL = 1 kΩ, 1 nF | 3 V/µs | V/µs | ||
| Gain Bandwidth Product | GBP | 5 MHz | MHz | |||
| Phase Margin | φm | 60 Degrees | Degrees | |||
| Capacitive Load Drive | No Oscillation | 10 nF | nF | |||
| Total Harmonic Distortion | THD | 0.01 % | % | |||
| Voltage Noise Density | en | f = 1 kHz | 22 nV/√Hz | nV/√Hz |
Key Features
- Rail-to-Rail Inputs and Outputs: Ensures full range operation even with single supply designs.
- High Output Current: Capable of sourcing and sinking ±60 mA, making it suitable for driving heavy loads.
- Single Supply Operation: Operates from a single supply voltage ranging from 5 V to 12 V.
- Wide Bandwidth: Features a bandwidth of 5 MHz and a slew rate of 3 V/µs.
- Low Distortion: Maintains low distortion of 0.01% even with wide common-mode range.
- Unity-Gain Stable: Stable in unity-gain configurations without phase reversal.
- Short-Circuit Protected: Protected against short circuits to ensure reliability.
- Capacitive Load Drive Capability: Stable with capacitive loads up to 10 nF.
Applications
- Multimedia: Suitable for audio and video applications requiring high output current and low distortion.
- Telecom: Used in telecom applications such as DAA (Data Access Arrangements) and modems.
- Transformer Driver: Can drive transformers and power transistors effectively.
- LCD Driver: Ideal for driving LCD displays due to its high output current capability.
- Low Voltage Servo Control: Used in servo control systems that require low voltage and high output current.
- FET Drivers: Suitable for driving FETs in various applications.
Q & A
- What is the typical output current of the OP279GSZ?
The OP279GSZ can source and sink currents of ±60 mA (typical).
- What is the operating supply voltage range for the OP279GSZ?
The OP279GSZ operates from a single supply voltage ranging from 5 V to 12 V.
- What is the bandwidth of the OP279GSZ?
The OP279GSZ has a bandwidth of 5 MHz.
- Is the OP279GSZ stable with capacitive loads?
Yes, the OP279GSZ is stable with capacitive loads up to 10 nF.
- What is the typical slew rate of the OP279GSZ?
The typical slew rate of the OP279GSZ is 3 V/µs.
- What are some common applications of the OP279GSZ?
The OP279GSZ is commonly used in multimedia, telecom, transformer drivers, LCD drivers, low voltage servo control, and FET drivers.
- Does the OP279GSZ have short-circuit protection?
Yes, the OP279GSZ has short-circuit protection.
- What is the typical input offset voltage of the OP279GSZ?
The typical input offset voltage of the OP279GSZ is ±4 mV.
- What is the phase margin of the OP279GSZ?
The phase margin of the OP279GSZ is 60 degrees.
- What is the total harmonic distortion (THD) of the OP279GSZ?
The total harmonic distortion (THD) of the OP279GSZ is 0.01%.
