Overview
The OP279GS is a dual rail-to-rail, high output current, single-supply operational amplifier produced by Analog Devices Inc. It is designed for low voltage applications that require high output current drive and low distortion. The OP279GS is part of Analog Devices’ family of single-supply devices, tailored for the multimedia and telecom markets, as well as other applications needing low supply voltage and high drive capability.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Input 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 | |||
| Supply Voltage | VS | 4.5 V, ±2.25 V | 12 V, ±6 V | V | ||
| Operating Temperature | TA | -40°C | +85°C | °C | ||
| Package | 8-Lead SOIC, 8-Lead TSSOP |
Key Features
- Rail-to-Rail Inputs and Outputs: Ensures full signal swing from the negative to the positive supply rail.
- High Output Current: Capable of sourcing and sinking up to ±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 and High Slew Rate: Features a gain bandwidth product of 5 MHz and a slew rate of 3 V/μs.
- Low Distortion: Offers low total harmonic distortion (THD) of 0.01%.
- Unity-Gain Stable: No phase reversal and stable with capacitive loads up to 10 nF.
- Short-Circuit Protected: Protected against short circuits.
Applications
- Multimedia and Telecom: Ideal for applications in multimedia and telecom markets.
- Headphone Drivers: Suitable for driving headphones due to its high output current.
- Display Drivers: Can drive displays efficiently.
- Transformer Drivers: Used in driving transformers.
- Power Transistor Drivers: Capable of driving power transistors.
- Low Voltage Servo Control: Used in low voltage servo control applications.
- Modems and FET Drivers: Suitable for modem and FET driver applications.
Q & A
- What is the typical output current of the OP279GS?
The OP279GS can source and sink up to ±60 mA of current.
- What is the operating supply voltage range for the OP279GS?
The OP279GS operates from a single supply voltage ranging from 5 V to 12 V, or dual supply from ±2.25 V to ±6 V.
- What is the gain bandwidth product of the OP279GS?
The gain bandwidth product (GBP) of the OP279GS is 5 MHz.
- Is the OP279GS stable with capacitive loads?
Yes, the OP279GS is stable with capacitive loads up to 10 nF.
- What is the typical slew rate of the OP279GS?
The typical slew rate of the OP279GS is 3 V/μs.
- What are the key applications of the OP279GS?
The OP279GS is used in multimedia, telecom, headphone drivers, display drivers, transformer drivers, power transistor drivers, low voltage servo control, and modem applications.
- What is the input offset voltage of the OP279GS?
The input offset voltage (VOS) of the OP279GS is typically ±4 mV.
- What is the common-mode rejection ratio (CMRR) of the OP279GS?
The CMRR of the OP279GS is typically 66 dB.
- What is the operating temperature range of the OP279GS?
The OP279GS operates over a temperature range of -40°C to +85°C.
- In what packages is the OP279GS available?
The OP279GS is available in 8-Lead SOIC and 8-Lead TSSOP packages.
