BUF634UAlternatives & Equivalent Parts
About BUF634U
BUF634U is a Integrated Circuit component manufactured by Texas Instruments. It comes in a Small Outline Packages package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
Specification Comparison
| Parameter | BUF634USource | BUF634UE4 | LM7171AIM/NOPB | SN74HC393D | ADG453BRUZ |
|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Analog Devices |
| Package Type | Small Outline Packages | Small Outline Packages | Small Outline Packages | — | Small Outline Packages |
| Pin Count | 8 | 8 | 8 | — | 16 |
| Temperature Range | -40.0°C ~ 125.0°C | -40.0°C ~ 125.0°C | -40.0°C ~ 85.0°C | — | -40.0°C ~ 85.0°C |
| Price | $15.5500 | — | $1.9400 | $0.2850 | $4.9100 |
| Electrical Parameters | |||||
| Pbfree Code | Yes | — | — | — | No |
| Date Of Intro | 1993-07-01 | — | — | — | — |
| YTEOL | 3.9 | 0 | 0 | — | 10 |
| Amplifier Type | BUFFER | BUFFER | OPERATIONAL AMPLIFIER | — | — |
| Average Bias Current-Max (IIB) | 20 µA | 20 µA | 10 µA | — | — |
| Bandwidth (3dB)-Nom | 180 MHz | 180 MHz | 140 MHz | — | — |
| Bias Current-Max (IIB) @25C | 20 µA | 20 µA | 10 µA | — | — |
| Input Offset Voltage-Max | 100000 µV | 100000 µV | 1000 µV | — | — |
| JESD-30 Code | R-PDSO-G8 | R-PDSO-G8 | R-PDSO-G8 | — | R-PDSO-G16 |
| JESD-609 Code | e4 | e4 | e3 | — | e3 |
| Neg Supply Voltage Limit-Max | -18 V | -18 V | -18 V | — | — |
| Neg Supply Voltage-Nom (Vsup) | -15 V | -15 V | -5 V | — | -5 V |
| Number of Functions | 1 | 1 | 1 | — | 4 |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | — | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 | SOP8,.25 | SOP8,.25 | — | TSSOP16,.25 |
| Package Shape | RECTANGULAR | RECTANGULAR | RECTANGULAR | — | RECTANGULAR |
| Package Style | SMALL OUTLINE | SMALL OUTLINE | SMALL OUTLINE | — | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TUBE | TUBE | TUBE | — | — |
| Peak Reflow Temperature (Cel) | 260 | 260 | 260 | — | 260 |
| Qualification Status | Not Qualified | Not Qualified | Not Qualified | — | Not Qualified |
| Slew Rate-Nom | 2000 V/us | 2000 V/us | 4100 V/us | — | — |
| Supply Current-Max | 20 mA | 20 mA | 8.5 mA | — | — |
| Supply Voltage Limit-Max | 18 V | 18 V | 18 V | — | — |
| Supply Voltage-Nom (Vsup) | 15 V | 15 V | 5 V | — | 5 V |
| Surface Mount | YES | YES | YES | — | YES |
| Technology | BIPOLAR | BIPOLAR | BIPOLAR | — | CMOS |
| Temperature Grade | AUTOMOTIVE | AUTOMOTIVE | INDUSTRIAL | — | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | NICKEL PALLADIUM GOLD | Matte Tin (Sn) | — | Matte Tin (Sn) |
| Terminal Form | GULL WING | GULL WING | GULL WING | — | GULL WING |
| Terminal Pitch | 1.27 mm | 1.27 mm | 1.27 mm | — | 0.65 mm |
| Terminal Position | DUAL | DUAL | DUAL | — | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 | 30 | NOT SPECIFIED | — | 30 |
| Unity Gain BW-Nom | 180000 | — | 200000 | — | — |
| ## BUF634U Alternates Showing results | Image | — | — | — | — |
| Architecture | — | — | VOLTAGE-FEEDBACK | — | — |
| Common-mode Reject Ratio-Min | — | — | 75 dB | — | — |
| Common-mode Reject Ratio-Nom | — | — | 105 dB | — | — |
| Frequency Compensation | — | — | YES (AVCL>=2) | — | — |
| Input Offset Current-Max (IIO) | — | — | 4 µA | — | — |
| Low-Bias | — | — | NO | — | — |
| Low-Offset | — | — | NO | — | — |
| Micropower | — | — | NO | — | — |
| Power | — | — | NO | — | — |
| Programmable Power | — | — | NO | — | — |
| Voltage Gain-Min | — | — | 2200 | — | — |
| Wideband | — | — | YES | — | — |
| ## LM7171AIM/NOPB Alternates Showing results | — | — | Image | — | — |
| Manufacturer Package Code | — | — | — | — | RU-16 |
| Additional Feature | — | — | — | — | ALSO OPERATE WITH 12V SINGLE SUPPLY |
| Analog IC - Other Type | — | — | — | — | SPST |
| Neg Supply Voltage-Max (Vsup) | — | — | — | — | -20 V |
| Neg Supply Voltage-Min (Vsup) | — | — | — | — | -4.5 V |
| Normal Position | — | — | — | — | NO/NC |
| Number of Channels | — | — | — | — | 1 |
| Off-state Isolation-Nom | — | — | — | — | 65 dB |
| On-state Resistance Match-Nom | — | — | — | — | 0.3 Ω |
| On-state Resistance-Max (Ron) | — | — | — | — | 12 Ω |
| Output | — | — | — | — | SEPARATE OUTPUT |
| Signal Current-Max | — | — | — | — | 0.1 A |
| Supply Current-Max (Isup) | — | — | — | — | 0.005 mA |
| Supply Voltage-Max (Vsup) | — | — | — | — | 20 V |
| Supply Voltage-Min (Vsup) | — | — | — | — | 4.5 V |
| Switch-off Time-Max | — | — | — | — | 140 ns |
| Switch-on Time-Max | — | — | — | — | 220 ns |
| Switching | — | — | — | — | BREAK-BEFORE-MAKE |
| ## ADG453BRUZ Alternates Showing results | — | — | — | — | Image |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Quick Links
Why Look for Alternatives?
Finding alternatives for BUF634U is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating BUF634U replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
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What is equivalent to BUF634U?
Known equivalents for BUF634U include BUF634UE4, LM7171AIM/NOPB, SN74HC393D. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of BUF634U?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify BUF634U alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.