Overview
The OP279GS-REEL7, produced by Analog Devices Inc., is a rail-to-rail, high output current, single-supply operational amplifier. This device is part of the OP179 and OP279 series, designed for low voltage applications that require either current or capacitive load drive capability. The OP279GS-REEL7 is particularly suited for applications needing high output current and low distortion, making it ideal for various electronic systems.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Supply Voltage | VS | 4.5 | 12 | V | ||
| Input Offset Voltage | VOS | VOUT = 2.5 V | ±4 | mV | ||
| Input Bias Current | IB | VOUT = 2.5 V, TA = 25°C | ±300 | ±700 | nA | |
| Input Offset Current | IOS | VOUT = 2.5 V, TA = 25°C | ±50 | ±100 | nA | |
| Output Voltage High | VOH | IL = 10 mA Source | 4.8 | V | ||
| Output Voltage Low | VOL | IL = 10 mA Sink, TA = 25°C | 100 | mV | ||
| Short-Circuit Limit | ISC | TA = 25°C | ±40 | mA | ||
| Slew Rate | SR | RL = 1 kΩ, 1 nF | 3 | V/µs | ||
| Gain Bandwidth Product | GBP | 5 | MHz | |||
| Phase Margin | φm | 60 | Degrees | |||
| Common-Mode Rejection Ratio | CMRR | VCM = 0 V to 5 V | 56 | 66 | dB | |
| Power Supply Rejection Ratio | PSRR | VS = 4.5 V to 12 V | 70 | 88 | dB | |
| Supply Current/Amplifier | ISY | VOUT = 2.5 V | 3.5 | mA | ||
| Operating Temperature | TA | -40 | 85 | °C |
Key Features
- Rail-to-Rail Inputs and Outputs: The OP279GS-REEL7 features rail-to-rail input and output stages, allowing it to operate effectively in single-supply configurations.
- High Output Current: Capable of sourcing and sinking currents up to ±60 mA, making it suitable for driving high current loads such as headphones, displays, and power transistors.
- Wide Bandwidth and High Slew Rate: With a gain bandwidth product of 5 MHz and a slew rate of 3 V/µs, this amplifier is suitable for high-frequency applications.
- Low Distortion: Offers low total harmonic distortion (THD) of 0.01%, ensuring high fidelity in audio and other signal processing applications.
- Unity-Gain Stable: The OP279GS-REEL7 is stable in unity-gain configurations, eliminating the need for additional compensation components.
- No Phase Reversal: Prevents phase reversal, which can occur in some amplifiers when the input common-mode voltage exceeds the supply rails.
- Short-Circuit Protected: Protected against short-circuit conditions, enhancing reliability and durability.
- Capacitive Load Drive Capability: Stable with capacitive loads up to 10 nF, making it suitable for driving capacitive loads without oscillation.
Applications
- Multimedia and Telecom: Suitable for various multimedia and telecom applications due to its high output current and low distortion.
- Transformer Drivers: Can drive transformers efficiently, making it useful in power supply and signal processing circuits.
- LCD Drivers: Ideal for driving LCD displays due to its high output current and rail-to-rail output capability.
- Low Voltage Servo Control: Used in servo control systems where low voltage and high current drive capabilities are required.
- Modems and FET Drivers: Suitable for modem and FET driver applications where high output current and low distortion are necessary.
Q & A
- What is the typical output current of the OP279GS-REEL7?
The OP279GS-REEL7 can source and sink currents up to ±60 mA.
- What is the operating temperature range of the OP279GS-REEL7?
The operating temperature range is from -40°C to +85°C.
- What is the gain bandwidth product of the OP279GS-REEL7?
The gain bandwidth product is 5 MHz.
- Is the OP279GS-REEL7 stable with capacitive loads?
Yes, it is stable with capacitive loads up to 10 nF.
- What is the typical slew rate of the OP279GS-REEL7?
The typical slew rate is 3 V/µs.
- Does the OP279GS-REEL7 have short-circuit protection?
Yes, it has short-circuit protection.
- What is the common-mode rejection ratio (CMRR) of the OP279GS-REEL7?
The CMRR is 66 dB.
- What is the power supply rejection ratio (PSRR) of the OP279GS-REEL7?
The PSRR is 88 dB.
- What is the typical supply current per amplifier for the OP279GS-REEL7?
The typical supply current per amplifier is 3.5 mA.
- In what package types is the OP279GS-REEL7 available?
The OP279GS-REEL7 is available in 8-lead SOIC and TSSOP packages.
