210-MHz, 250-mA high-speed buffer 8-SOIC -40 to 125


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  • Part Number : BUF634AIDR

  • Package/Case : 8-SOIC

  • Brands : TI

  • Components Categories : AmplifiersInstrumentation, OP Amps, Buffer Amps

  • Datesheet : BUF634AIDR DataSheet (PDF)

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Overview of BUF634AIDR

Description for the BUF634AThe BUF634A deviceis a high-performance, high-fidelity, open-loop buffer thatis capable of driving 250 mA of output current. The BUF634Ais a 36-V device with an adjustable bandwidth of 35 MHz to210 MHz, which is accomplished by varying the value of anexternal resistor between the V– and BW pins.The BUF634A device can be used as astandalone open-loop driver, or used inside the feedbackloop of a precision op amp to provide both high-precisionand large output current drive with improved capacitive loaddrive.For low-powerapplications, the BUF634A device operates on a 1.5-mAquiescent current with a 250-mA output, 3750-V/µs slew rate,and 35-MHz bandwidth. The device consumes 8.5-mA quiescentcurrent in wide-bandwidth mode with a 210-MHz bandwidth. TheBUF634A is fully protected by an internal current limit inits output stage and by thermal shutdown, making the devicerugged and easy to use.The BUF634A deviceis rated to function over the extended industrialtemperature range of –40°C to +125°C. The BUF634A comes inthree packages: D (SOIC), DRB (VSON), and DDA (HSOIC). TheDRB (VSON) and DDA (HSOIC) packages have excellent thermalperformance resulting from the thermal pad on the bottomside. The DRB package comes in a very small form factor of3.0 mm × 3.0 mm, making the device a very suitable optionfor portable and size-constrained applications.


Key Features

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


The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Source Content uid BUF634AIDR Pbfree Code Yes
Rohs Code Yes Part Life Cycle Code Active
Ihs Manufacturer TEXAS INSTRUMENTS INC Package Description SOP, SOP8,.25
Reach Compliance Code compliant ECCN Code EAR99
HTS Code 8542.39.00.01 Date Of Intro 2019-03-03
Samacsys Manufacturer Texas Instruments Amplifier Type BUFFER
Average Bias Current-Max (IIB) 1.6 µA Bandwidth (3dB)-Nom 210 MHz
Bias Current-Max (IIB) @25C 1.6 µA Input Offset Voltage-Max 60000 µV
JESD-30 Code R-PDSO-G8 JESD-609 Code e4
Length 4.905 mm Moisture Sensitivity Level 2
Neg Supply Voltage Limit-Max -20 V Neg Supply Voltage-Nom (Vsup) -15 V
Number of Functions 1 Number of Terminals 8
Operating Temperature-Max 125 °C Operating Temperature-Min -40 °C
Package Body Material PLASTIC/EPOXY Package Code SOP
Package Equivalence Code SOP8,.25 Package Shape RECTANGULAR
Package Style SMALL OUTLINE Packing Method TR
Peak Reflow Temperature (Cel) 260 Seated Height-Max 1.75 mm
Slew Rate-Nom 3750 V/us Supply Current-Max 12 mA
Supply Voltage Limit-Max 20 V Supply Voltage-Nom (Vsup) 15 V
Surface Mount YES Temperature Grade AUTOMOTIVE
Terminal Finish Nickel/Palladium/Gold (Ni/Pd/Au) Terminal Form GULL WING
Terminal Pitch 1.27 mm Terminal Position DUAL
Time@Peak Reflow Temperature-Max (s) NOT SPECIFIED Unity Gain BW-Nom 210000
Width 3.895 mm

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Warranty, Returns, and Additional Information

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    Parts Quality Guarantee: 365 days

    Returns for refund: within 90 days

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