250-mA high-speed buffer - see BUF634A for upgraded version
Product details
Parameters
We are not able to display this information. Please refer to the product data sheet.Features
- A newer version of this device is now available: BUF634A
- High output current: 250 mA
- Slew rate: 2000 V/µs
- Pin-selected bandwidth: 30 MHz to 180 MHz
- Low quiescent current: 1.5 mA (30 MHz BW)
- Wide supply range: ±2.25 to ±18 V
- Internal current limit
- Thermal shutdown protection
- 8-pin PDIP, SOIC-8, 5-lead TO-220, 5-lead DDPAK-TO-263 surface-mount
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Description
The BUF634 is a high speed, unity-gain open-loop buffer recommended for a wide range of applications. The BUF634 can be used inside the feedback loop of op amps to increase output current, eliminate thermal feedback, and improve capacitive load drive.
For low power applications, the BUF634 operates on 1.5-mA quiescent current with 250-mA output,
2000-V/µs slew rate, and 30-MHz bandwidth. Bandwidth can be adjusted from 30 MHz to 180 MHz by connecting a resistor between V– and the BW Pin.
Output circuitry is fully protected by internal current limit and thermal shut-down, making the device rugged and easy to use.
The BUF634 is available in a variety of packages to suit mechanical and power dissipation requirements. Types include 8-pin PDIP, SOIC-8 surface-mount, 5-lead TO-220, and a 5-lead DDPAK-TO-263 surface-mount plastic power package.
The upgraded device, BUF634A offers a wider bandwidth (210 MHz) and a higher slew rate (3750 V/µs) at 40% lower quiescent current. See the Device Comparison Table for a selection of unity-gain, open-loop buffers from Texas Instruments.
Technical documentation
| Type | Title | Date | |
|---|---|---|---|
| * | Datasheet | BUF634 250-mA High-Speed Buffer datasheet (Rev. B) | Mar. 29, 2019 |
| User guides | BUF634AD Evaluation module | Feb. 18, 2019 | |
| Technical articles | How to reduce distortion in high-voltage, high-frequency signal generation for AWGs | Oct. 30, 2018 | |
| Technical articles | What are the advantages of using JFET-input amplifiers in high-speed applications? | Jun. 18, 2018 | |
| Technical articles | Unique active mux capability combines buffer and switch into one solution | Oct. 10, 2017 | |
| White papers | The Signal e-book: A compendium of blog posts on op amp design topics | Mar. 28, 2017 | |
| Technical articles | How to minimize filter loss when you drive an ADC | Oct. 20, 2016 | |
| Application notes | Combining an Amplifier with the BUF634 | Oct. 02, 2000 | |
| Application notes | Add Current Limit to the BUF634 | Sep. 27, 2000 | |
| Application notes | Power Amplifier Stress and Power Handling Limitations | Sep. 27, 2000 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Design tools & simulation
Features
- Expedites circuit design with analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
- Noise calculations
- Common unit translation
- Solves common amplifier circuit design problems
- Gain selections using standard resistors
- Filter configurations
- Total noise for common amplifier configurations
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CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| DDPAK/TO-263 (KTT) | 5 | View options |
| PDIP (P) | 8 | View options |
| SOIC (D) | 8 | View options |
| TO-220 (KC) | 5 | View options |
Ordering & quality
Support & training
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