BUF634

Búfer de alta velocidad de 250 mA: consulte BUF634A para obtener la versión actualizada

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document-pdfAcrobat BUF634 250mA High-Speed Buffer datasheet (Rev. C) (Inglés) PDF | HTML

BUF634 no se recomienda para nuevos diseños

Aunque esta producto sigue en producción para dar soporte a diseños anteriores, no lo recomendamos para nuevos diseños. Considere una de estas alternativas:

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BUF634A

ACTIVO

Búfer de alta velocidad de 210 MHz y 250 mA BUF634A has higher slew rate (3750 V/µs) and wider bandwidth (210 MHz) at a 40% lower quiescent current (8.5 mA) and is available at a lower cost

BUF634

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Detalles del producto

Architecture

Fixed Gain/Buffer

Number of channels

1

Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)

5

Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)

36

GBW (typ) (MHz)

180

BW at Acl (MHz)

180

Acl, min spec gain (V/V)

1

Slew rate (typ) (V/µs)

2000

Vn at flatband (typ) (nV√Hz)

4

Vn at 1 kHz (typ) (nV√Hz)

4

Iq per channel (typ) (mA)

15

Vos (offset voltage at 25°C) (max) (mV)

100

Rail-to-rail

No

Features

Adjustable BW/IQ/IOUT

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Input bias current (max) (pA)

20000000

Offset drift (typ) (µV/°C)

100

Iout (typ) (mA)

250

2nd harmonic (dBc)

75

3rd harmonic (dBc)

83

Frequency of harmonic distortion measurement (MHz)

1

Architecture

Fixed Gain/Buffer

Number of channels

1

Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)

5

Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)

36

GBW (typ) (MHz)

180

BW at Acl (MHz)

180

Acl, min spec gain (V/V)

1

Slew rate (typ) (V/µs)

2000

Vn at flatband (typ) (nV√Hz)

4

Vn at 1 kHz (typ) (nV√Hz)

4

Iq per channel (typ) (mA)

15

Vos (offset voltage at 25°C) (max) (mV)

100

Rail-to-rail

No

Features

Adjustable BW/IQ/IOUT

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Input bias current (max) (pA)

20000000

Offset drift (typ) (µV/°C)

100

Iout (typ) (mA)

250

2nd harmonic (dBc)

75

3rd harmonic (dBc)

83

Frequency of harmonic distortion measurement (MHz)

1

SOIC (D)

8

29.4 mm² 4.9 x 6

TO-220 (KC)

5

45.212 mm² 10.16 x 4.45

TO-263 (KTT)

5

154.8384 mm² 10.16 x 15.24

A newer version of this device is now available: BUF634A
High output current: 250mA
Slew rate: 2000V/µs
Pin-selected bandwidth: 30MHz to 180MHz
Low quiescent current: 1.5mA (30MHz BW)
Wide supply range: ±2.25V to ±18V
Internal current limit
Thermal shutdown protection
Packages:
- 5-pin SOIC
- 5-pin TO-220
- 5-pin TO-263 surface-mount

A newer version of this device is now available: BUF634A
High output current: 250mA
Slew rate: 2000V/µs
Pin-selected bandwidth: 30MHz to 180MHz
Low quiescent current: 1.5mA (30MHz BW)
Wide supply range: ±2.25V to ±18V
Internal current limit
Thermal shutdown protection
Packages:
- 5-pin SOIC
- 5-pin TO-220
- 5-pin TO-263 surface-mount

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 1.5mA quiescent current with 250mA output, 2000V/µs slew rate, and 30MHz bandwidth. Bandwidth can be adjusted from 30MHz to 180MHz by connecting a resistor between V– and the BW pin.

Output circuitry is fully protected by internal current limit and thermal shutdown, making the device rugged and easy to use.

The BUF634 is available in a variety of packages to meet mechanical and power-dissipation requirements. Types include SOIC‑8 surface-mount, 5‑lead TO‑220, and a 5‑lead TO‑263 (DDPAK) surface-mount plastic power packages.

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 1.5mA quiescent current with 250mA output, 2000V/µs slew rate, and 30MHz bandwidth. Bandwidth can be adjusted from 30MHz to 180MHz by connecting a resistor between V– and the BW pin.

Output circuitry is fully protected by internal current limit and thermal shutdown, making the device rugged and easy to use.

The BUF634 is available in a variety of packages to meet mechanical and power-dissipation requirements. Types include SOIC‑8 surface-mount, 5‑lead TO‑220, and a 5‑lead TO‑263 (DDPAK) surface-mount plastic power packages.

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Documentación técnica

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	Tipo	Título		Fecha
*	Data sheet	BUF634 250mA High-Speed Buffer datasheet (Rev. C)	PDF \| HTML	01 mar 2024
	Application note	BUF634A and BUF634 Thermal Performance Comparison	PDF \| HTML	18 oct 2021
	Application brief	Optimizing LCR Meter Front-End Design for Accurate Impedance Measurements	PDF \| HTML	20 ene 2021
	EVM User's guide	BUF634AD Evaluation module		18 feb 2019
	E-book	The Signal e-book: A compendium of blog posts on op amp design topics		28 mar 2017
	Application note	Combining an Amplifier with the BUF634		02 oct 2000
	Application note	Add Current Limit to the BUF634		27 sep 2000
	Application note	Power Amplifier Stress and Power Handling Limitations		27 sep 2000

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

BUF634ADRBEVM — Módulo de evaluación de búfer de alta velocidad de 250 mA

The BUF634ADRBEVM is an evaluation module (EVM) for the BUF634A high-speed buffer in the DRB (8-pin DFN) package. The BUF634ADRBEVM features two BUF634AIDRB devices and is designed to quickly demonstrate the functionality and versatility of the buffer. Optionally, the buffers can be configured as (...)

Guía del usuario: PDF | HTML

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Modelo de simulación

BUF634 PSpice Model (Rev. B)

SBOM003B.ZIP (62 KB) - PSpice Model

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Modelo de simulación

BUF634 TINA-TI Reference Design (Rev. C)

SBOC135C.TSC (405 KB) - TINA-TI Reference Design

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Modelo de simulación

BUF634 TINA-TI Spice Model (Rev. B)

SBOM204B.ZIP (10 KB) - TINA-TI Spice Model

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Herramienta de cálculo

ANALOG-ENGINEER-CALC — Calculadora para ingenieros analógicos

The analog engineer’s calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting operational-amplifier (...)

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Herramienta de cálculo

VOLT-DIVIDER-CALC — Voltage divider calculation tool

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Herramienta de simulación

PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)

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Herramienta de simulación

TINA-TI — Programa de simulación analógica basado en SPICE

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)

Guía del usuario: PDF

Ver opciones

Paquete	Pasadores	Descargar
SOIC (D)	8	Ver opciones
TO-220 (KC)	5	Ver opciones
TO-263 (KTT)	5	Ver opciones

Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

BUF634

Búfer de alta velocidad de 250 mA: consulte BUF634A para obtener la versión actualizada

Reemplazo con funcionalidad mejorada del dispositivo comparado

BUF634

Detalles del producto

Documentación técnica

Diseño y desarrollo

BUF634ADRBEVM — Módulo de evaluación de búfer de alta velocidad de 250 mA

BUF634 PSpice Model (Rev. B)

BUF634 TINA-TI Reference Design (Rev. C)

BUF634 TINA-TI Spice Model (Rev. B)

ANALOG-ENGINEER-CALC — Calculadora para ingenieros analógicos

VOLT-DIVIDER-CALC — Voltage divider calculation tool

PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

TINA-TI — Programa de simulación analógica basado en SPICE

Pedidos y calidad

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

Serie de videos

Videos