Overview
The OPA725AIDBVRG4 is a high-performance operational amplifier (op-amp) produced by Texas Instruments. It is part of the OPA725 series, which utilizes a state-of-the-art 12V analog CMOS process. This op-amp is renowned for its outstanding AC performance, low bias current, and excellent common-mode rejection ratio (CMRR), power supply rejection ratio (PSRR), and open-loop gain (AOL). The OPA725AIDBVRG4 is particularly suited for applications requiring fast settling times, low noise, and high accuracy, making it ideal for communication, high-end audio, active filters, and other demanding applications.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Gain-Bandwidth Product (GBW) | 20 | MHz |
| Slew Rate | 30 | V/µs |
| Input Noise Density | 6 | nV/√Hz at 100kHz |
| Total Harmonic Distortion + Noise (THD+N) | 0.0003% | at 1kHz, VOUT = 2VRMS, RL = 600Ω |
| Quiescent Current | 5.5 | mA/ch (max) |
| Supply Voltage Range | 4V to 12V or ±2V to ±6V | V |
| Output Voltage Swing from Rail | 150mV | RL = 100kΩ |
| Common-Mode Voltage Range | V- to V+ - 2V | V |
| Common-Mode Rejection Ratio (CMRR) | 94 dB | Over Temperature |
| Open-Loop Voltage Gain (AOL) | 110 dB | RL = 100kΩ |
| Settling Time (0.1% and 0.01%) | 350 ns and 450 ns | VS = ±6V, 5V Step, G = +1 |
| Operating Temperature Range | -40°C to +125°C | °C |
Key Features
- High gain-bandwidth product of 20MHz and a slew rate of 30V/µs, ensuring fast and accurate signal processing.
- Low noise density of 6nV/√Hz at 100kHz, making it suitable for high-precision applications.
- Excellent CMRR, PSRR, and AOL, providing high stability and accuracy in various operating conditions.
- Rail-to-rail output, allowing the output voltage to swing close to the supply rails, maximizing dynamic range.
- Low quiescent current of 5.5mA per channel, making it energy-efficient.
- Shutdown mode available in OPA726 versions, reducing quiescent current to less than 6µA per channel.
- Available in various packages including SOT23-5, SO-8, MSOP-8, and MSOP-10, offering flexibility in design.
Applications
- Optical networking: Suitable for transimpedance amplifiers and monitoring optical power.
- Transimpedance amplifiers: Ideal for converting current signals to voltage signals with high accuracy.
- Integrators and active filters: Utilizes its high GBW and low noise for precise signal processing.
- A/D converter buffers: Ensures fast settling times for driving 16-bit analog-to-digital converters.
- I/V converters for DACs: Converts current signals from digital-to-analog converters efficiently.
- Portable audio: High-end audio applications benefit from its low THD+N and high slew rate.
- Process control and test equipment: Provides stable and accurate signal amplification in industrial settings.
Q & A
- What is the gain-bandwidth product of the OPA725AIDBVRG4?
The gain-bandwidth product (GBW) of the OPA725AIDBVRG4 is 20MHz.
- What is the typical slew rate of this op-amp?
The typical slew rate is 30V/µs.
- What is the input noise density of the OPA725AIDBVRG4?
The input noise density is 6nV/√Hz at 100kHz.
- What is the total harmonic distortion + noise (THD+N) at 1kHz?
The THD+N is 0.0003% at 1kHz, VOUT = 2VRMS, RL = 600Ω.
- What is the quiescent current per channel?
The quiescent current per channel is 5.5mA (max).
- What is the supply voltage range for this op-amp?
The supply voltage range is 4V to 12V or ±2V to ±6V.
- Does the OPA725AIDBVRG4 have a shutdown feature?
No, the OPA725AIDBVRG4 does not have a shutdown feature. However, the OPA726 versions do.
- What are the typical operating temperature ranges for this op-amp?
The operating temperature range is -40°C to +125°C.
- What are some common applications for the OPA725AIDBVRG4?
Common applications include optical networking, transimpedance amplifiers, integrators, active filters, A/D converter buffers, I/V converters for DACs, portable audio, process control, and test equipment.
- What packages are available for the OPA725AIDBVRG4?
The OPA725AIDBVRG4 is available in SOT23-5 and SO-8 packages.
