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See Technical Specifications

BUF634F/500

250-mA high-speed buffer - see BUF634A for upgraded version

Manufacturer:

TI
Mfr.Part #:

BUF634F/500
Datasheet:

BUF634F/500 Datasheet (PDF)
Part Life Cycle Code:

Not Recommended
Pin Count:

4
Reach Compliance Code:

compliant
ECCN Code:

EAR99
EDA/CAD Models:

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BUF634F/500 General 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.

Key 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A newer version of this device is now available: BUF634A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

Specifications

Source Content uid	BUF634F/500	Part Life Cycle Code	Not Recommended
Pin Count	4	Reach Compliance Code	compliant
ECCN Code	EAR99	HTS Code	8542.39.00.01
Amplifier Type	BUFFER	Average Bias Current-Max (IIB)	20 µA
Bandwidth (3dB)-Nom	180 MHz	Bias Current-Max (IIB) @25C	20 µA
Input Offset Voltage-Max	100000 µV	JESD-30 Code	R-PSSO-G5
JESD-609 Code	e3	Length	10.16 mm
Moisture Sensitivity Level	2	Neg Supply Voltage Limit-Max	-18 V
Neg Supply Voltage-Nom (Vsup)	-15 V	Number of Functions	1
Number of Terminals	5	Operating Temperature-Max	125 °C
Operating Temperature-Min	-40 °C	Packing Method	TR
Peak Reflow Temperature (Cel)	260	Qualification Status	Not Qualified
Seated Height-Max	5.13 mm	Slew Rate-Nom	2000 V/us
Supply Current-Max	20 mA	Supply Voltage Limit-Max	18 V
Supply Voltage-Nom (Vsup)	15 V	Surface Mount	YES
Technology	BIPOLAR	Temperature Grade	AUTOMOTIVE
Terminal Finish	MATTE TIN	Terminal Form	GULL WING
Terminal Pitch	1.7 mm	Terminal Position	SINGLE
Time@Peak Reflow Temperature-Max (s)	30	Unity Gain BW-Nom	180000
Width	8.925 mm