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210-MHz, 250-mA high-speed buffer

Inventory: 749
Limit:  50

Quality information

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Packaging information

Package | Pins Package qty | Carrier Operating temperature range (°C)
VSON (DRB) | 8 250 | SMALL T&R
-40 to 125
Package | Pins VSON (DRB) | 8
Package qty | Carrier 250 | SMALL T&R
Operating temperature range (°C) -40 to 125
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Features for the BUF634A

  • Pin-Selected Bandwidth: 35 MHz to 210 MHz
  • High Output Current: 250 mA
  • Slew Rate: 3750 V/µs
  • Low Quiescent Current: 1.5 mA (35-MHz BW)
  • Wide Supply Range: ±2.25 V to ±18 V
  • Internal Output Current Limit
  • Thermal Shutdown Protection
  • Available in Packages with Thermal Pad
  • Extended Temperature Operation: –40°C to +125°C

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Description for the BUF634A

The BUF634A device is a high-performance, high-fidelity, open-loop buffer that is capable of driving 250 mA of output current. The BUF634A is a 36-V device with an adjustable bandwidth of 35 MHz to 210 MHz, which is accomplished by varying the value of an external resistor between the V– and BW pins.

The BUF634A device can be used as a standalone open-loop driver, or used inside the feedback loop of a precision op amp to provide both high-precision and large output current drive with improved capacitive load drive.

For low-power applications, the BUF634A device operates on a 1.5-mA quiescent current with a 250-mA output, 3750-V/µs slew rate, and 35-MHz bandwidth. The device consumes 8.5-mA quiescent current in wide-bandwidth mode with a 210-MHz bandwidth. The BUF634A is fully protected by an internal current limit in its output stage and by thermal shutdown, making the device rugged and easy to use.

The BUF634A device is rated to function over the extended industrial temperature range of –40°C to +125°C. The BUF634A comes in three packages: D (SOIC), DRB (VSON), and DDA (HSOIC). The DRB (VSON) and DDA (HSOIC) packages have excellent thermal performance resulting from the thermal pad on the bottom side. The DRB package comes in a very small form factor of 3.0 mm × 3.0 mm, making the device a very suitable option for portable and size-constrained applications.


Qty Price (USD)
1-9 3.05
10-24 2.747
25-99 2.557
100-249 2.24
250-499 2.101
500-749 1.785
750-999 1.506
1,000+ 1.438