Overview
The BUF802IRGTR from Texas Instruments is a high-performance, wide-bandwidth buffer amplifier designed for applications requiring low noise and high input impedance. This device features a JFET-input stage, offering excellent noise and distortion performance across a wide frequency range. It is particularly suited for front-end amplification in data acquisition systems (DAQ) and other high-precision applications. The BUF802IRGTR supports a bandwidth of up to 3.1 GHz and includes integrated input and output clamps to protect against overdrive voltages, enhancing the reliability and signal integrity of the system.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Total Supply Voltage (min) | 9 | V |
| Total Supply Voltage (max) | 13 | V |
| Bandwidth (typ) | 3.1 GHz | |
| Gain (min spec) | 1 | V/V |
| Slew Rate (typ) | 7000 | V/µs |
| Input Noise Voltage (typ) at flatband | 2.3 | nV/√Hz |
| Input Offset Voltage (max) at 25°C | 900 | mV |
| Input Bias Current (typ) | 3-25 | pA |
| Quiescent Current per Channel (typ) | 34 | mA |
| Operating Temperature Range | -40 to 85 | °C |
| Package | VQFN (16 pins) | |
| Package Size | 3.00 mm × 3.00 mm |
Key Features
- High Input Impedance and Low Noise: The BUF802IRGTR features a JFET-input stage, providing high input impedance and low noise of 2.3 nV/√Hz, making it ideal for sensitive signal processing applications.
- Wide Bandwidth: Supports a bandwidth of up to 3.1 GHz, ensuring excellent performance across a wide frequency range.
- Integrated Input and Output Clamps: Protects the device and subsequent signal chain from overdrive voltages, enhancing reliability and signal integrity.
- Adjustable Quiescent Current: Allows designers to trade bandwidth and distortion for lower quiescent current, making the part suitable for a wide range of applications.
- High Slew Rate: A typical slew rate of 7000 V/µs ensures rapid response to input changes.
- Compact Package: Available in a VQFN (16 pins) package with a size of 3.00 mm × 3.00 mm, suitable for space-constrained designs.
Applications
- Data Acquisition Systems (DAQ): Ideal for front-end amplification due to its high input impedance and low noise characteristics.
- High-Precision Measurement Systems: Suitable for applications requiring accurate and stable signal amplification.
- Test and Measurement Equipment: Used in oscilloscopes, signal generators, and other test equipment where high bandwidth and low noise are critical.
- Medical Devices: Applicable in medical imaging and diagnostic equipment where signal integrity is paramount.
- Aerospace and Defense: Used in various military and aerospace applications requiring high reliability and performance.
Q & A
- What is the typical bandwidth of the BUF802IRGTR?
The typical bandwidth of the BUF802IRGTR is up to 3.1 GHz.
- What is the input noise voltage of the BUF802IRGTR?
The input noise voltage of the BUF802IRGTR is typically 2.3 nV/√Hz.
- What is the slew rate of the BUF802IRGTR?
The slew rate of the BUF802IRGTR is typically 7000 V/µs.
- What is the operating temperature range of the BUF802IRGTR?
The operating temperature range of the BUF802IRGTR is from -40°C to 85°C.
- What type of package is the BUF802IRGTR available in?
The BUF802IRGTR is available in a VQFN (16 pins) package.
- What are the dimensions of the BUF802IRGTR package?
The dimensions of the BUF802IRGTR package are 3.00 mm × 3.00 mm.
- Does the BUF802IRGTR have integrated clamps for overdrive protection?
Yes, the BUF802IRGTR has integrated input and output clamps to protect against overdrive voltages.
- Can the quiescent current of the BUF802IRGTR be adjusted?
Yes, the quiescent current of the BUF802IRGTR can be adjusted to trade bandwidth and distortion for lower power consumption.
- What are some typical applications of the BUF802IRGTR?
The BUF802IRGTR is typically used in data acquisition systems, high-precision measurement systems, test and measurement equipment, medical devices, and aerospace and defense applications.
- What is the maximum supply voltage for the BUF802IRGTR?
The maximum supply voltage for the BUF802IRGTR is 13 V.
