Overview
The BUF634AIDDAR is a high-performance, high-fidelity, open-loop buffer amplifier produced by Texas Instruments. This device is designed to provide high-precision and large output current drive, making it suitable for a variety of applications requiring robust and reliable signal buffering. The BUF634AIDDAR can be used as a standalone open-loop driver or integrated into the feedback loop of a precision operational amplifier to enhance capacitive load drive and overall system performance.
Key Specifications
| Parameter | Description |
|---|---|
| Bandwidth | Adjustable: 35 MHz to 210 MHz |
| Output Current | 250 mA |
| Slew Rate | 3750 V/µs |
| Quiescent Current | 1.5 mA (35-MHz BW), 8.5 mA (210-MHz BW) |
| Supply Range | ±2.25 V to ±18 V |
| Operating Temperature Range | –40°C to +125°C |
| Package | HSOIC (DDA)-8, SOIC-8, VSON (DRB) |
| Thermal Features | Internal Output Current Limit, Thermal Shutdown Protection, Thermal Pad (in DRB and DDA packages) |
Key Features
- Pin-Selected Bandwidth: Adjustable from 35 MHz to 210 MHz
- High Output Current: Up to 250 mA
- High Slew Rate: 3750 V/µs
- Low Quiescent Current: 1.5 mA at 35-MHz bandwidth
- Wide Supply Range: ±2.25 V to ±18 V
- Internal Output Current Limit and Thermal Shutdown Protection
- Available in Packages with Thermal Pad for enhanced thermal performance
- Extended Temperature Operation: –40°C to +125°C
Applications
- Audio Systems: Suitable for audio amplification and preamplifiers due to its high fidelity and low distortion characteristics.
- Precision Instrumentation: Ideal for applications requiring high-precision signal buffering and large output current drive.
- Portable Devices: The small form factor and enhanced thermal performance of the DRB package make it suitable for size-constrained and portable applications.
- Testing Equipment: Approved for use in various testing equipment due to its robust and reliable performance.
Q & A
- What is the adjustable bandwidth range of the BUF634AIDDAR?
The bandwidth of the BUF634AIDDAR is adjustable from 35 MHz to 210 MHz.
- What is the maximum output current of the BUF634AIDDAR?
The maximum output current is 250 mA.
- What is the slew rate of the BUF634AIDDAR?
The slew rate is 3750 V/µs.
- What is the quiescent current of the BUF634AIDDAR at 35-MHz bandwidth?
The quiescent current is 1.5 mA at 35-MHz bandwidth.
- What is the supply voltage range of the BUF634AIDDAR?
The supply voltage range is ±2.25 V to ±18 V.
- What are the available package types for the BUF634AIDDAR?
The available packages are HSOIC (DDA)-8, SOIC-8, and VSON (DRB).
- Does the BUF634AIDDAR have thermal protection features?
Yes, it includes internal output current limit and thermal shutdown protection.
- What is the operating temperature range of the BUF634AIDDAR?
The operating temperature range is –40°C to +125°C.
- Is the BUF634AIDDAR suitable for audio applications?
Yes, it is suitable for audio amplification and preamplifiers due to its high fidelity and low distortion characteristics.
- Can the BUF634AIDDAR be used in portable devices?
Yes, the small form factor and enhanced thermal performance of the DRB package make it suitable for size-constrained and portable applications.
