Overview
The OPA4727AIPWR is a high-precision CMOS operational amplifier produced by Texas Instruments. It is part of the OPAx727 and OPAx728 series, known for their outstanding DC and AC performance. This quad op-amp is optimized for single-supply operation up to 12V and features a state-of-the-art 12V analog CMOS process. The device is particularly notable for its extremely low offset voltage and drift, achieved through Texas Instruments' e-trim technology, which involves digital trimming of the IC after packaging to minimize parameter shifts due to stresses during assembly.
Key Specifications
| Parameter | Typical | Maximum | Unit |
|---|---|---|---|
| Input Offset Voltage (VOS) | 15 µV | 175 µV | µV |
| Offset Voltage Drift (dVOS/dT) | 0.3 µV/°C | 1.5 µV/°C | µV/°C |
| Gain-Bandwidth Product (GBW) | 20 MHz | MHz | |
| Slew Rate (SR) | 30 V/µs | V/µs | |
| Input Bias Current | 500 pA | pA | |
| Noise Voltage | 6 nV/√Hz at 100 kHz | nV/√Hz | |
| Total Harmonic Distortion + Noise (THD+N) | 0.0003% at 1 kHz | % | |
| Quiescent Current (IQ) | 4.3 mA | 6.5 mA | mA |
| Supply Voltage Range | 4 V to 12 V | V | |
| Operating Temperature Range | -40°C to +125°C | °C |
Key Features
- High precision with low input offset voltage (15 µV typical, 175 µV maximum) and low drift (0.3 µV/°C typical, 1.5 µV/°C maximum).
- High gain-bandwidth product of 20 MHz and a slew rate of 30 V/µs, making it suitable for high-frequency applications.
- Low noise of 6 nV/√Hz at 100 kHz and low total harmonic distortion + noise (THD+N) of 0.0003% at 1 kHz.
- Low quiescent current of 4.3 mA per amplifier, suitable for battery-operated equipment.
- Single-supply operation up to 12V with input common-mode range extending to GND for true single-supply functionality.
- Available in TSSOP-14 package and specified for operation from -40°C to +125°C.
Applications
- Communication systems: Suitable for high-end communication applications due to its excellent AC characteristics.
- High-performance audio: Ideal for audio applications requiring low noise and high precision.
- Active filters: Used in active filter designs where high precision and low distortion are critical.
- Transimpedance amplifiers: Well-suited for monitoring optical power in optical networking applications.
- A/D converter drivers and I/V converters for DACs: Provides the necessary precision and bandwidth for these applications.
- Process control and test equipment: Suitable for precision measurement and control systems).
Q & A
- What is the typical input offset voltage of the OPA4727?
The typical input offset voltage of the OPA4727 is 15 µV.
- What is the maximum drift of the input offset voltage over temperature?
The maximum drift of the input offset voltage over temperature is 1.5 µV/°C).
- What is the gain-bandwidth product of the OPA4727?
The gain-bandwidth product of the OPA4727 is 20 MHz).
- What is the slew rate of the OPA4727?
The slew rate of the OPA4727 is 30 V/µs).
- What is the typical quiescent current per amplifier?
The typical quiescent current per amplifier is 4.3 mA).
- What is the supply voltage range for the OPA4727?
The supply voltage range for the OPA4727 is 4 V to 12 V).
- What is the operating temperature range for the OPA4727?
The operating temperature range for the OPA4727 is -40°C to +125°C).
- What package types are available for the OPA4727?
The OPA4727 is available in a TSSOP-14 package).
- What are some common applications for the OPA4727?
The OPA4727 is commonly used in communication systems, high-performance audio, active filters, transimpedance amplifiers, A/D converter drivers, and process control systems).
- Does the OPA4727 have a shutdown feature?
No, the OPA4727 does not have a shutdown feature. However, the OPA728, which is part of the same series, does have a shutdown feature).
