LMH6881

ACTIVO

Amplificador diferencial programable de 2.4 GHz con control de ganancia

Detalles del producto

2nd harmonic (dBc) -70 3rd harmonic (dBc) 76 Frequency of harmonic distortion measurement (MHz) 200 Acl, min spec gain (V/V) 2 Architecture Fully Differential ADC Driver, VGA BW at Acl (MHz) 2400 Gain (max) (dB) 26 Gain (min) (dB) 6 Step size (dB) 0.25 Type RF VGA Iq per channel (typ) (mA) 50 Number of channels 1 Rating Catalog Operating temperature range (°C) -40 to 85 Slew rate (typ) (V/µs) 6000 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.25 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.75 Vs (min) (V) 4.75 Vs (max) (V) 5.25
2nd harmonic (dBc) -70 3rd harmonic (dBc) 76 Frequency of harmonic distortion measurement (MHz) 200 Acl, min spec gain (V/V) 2 Architecture Fully Differential ADC Driver, VGA BW at Acl (MHz) 2400 Gain (max) (dB) 26 Gain (min) (dB) 6 Step size (dB) 0.25 Type RF VGA Iq per channel (typ) (mA) 50 Number of channels 1 Rating Catalog Operating temperature range (°C) -40 to 85 Slew rate (typ) (V/µs) 6000 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 5.25 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 4.75 Vs (min) (V) 4.75 Vs (max) (V) 5.25
WQFN (RTW) 24 16 mm² (4 mm × 4 mm)
  • Small Signal Bandwidth: 2400 MHz
  • OIP3 at 100 MHz: 44 dBm
  • HD3 at 100 MHz: –100 dBc
  • Noise Figure: 9.7 dB
  • Voltage Gain Range: 26 dB to 6 dB
  • Voltage Gain Step Size: 0.25 dB
  • Input Impedance: 100 Ω
  • Parallel and Serial Gain Control
  • Power Down Capability
  • Small Signal Bandwidth: 2400 MHz
  • OIP3 at 100 MHz: 44 dBm
  • HD3 at 100 MHz: –100 dBc
  • Noise Figure: 9.7 dB
  • Voltage Gain Range: 26 dB to 6 dB
  • Voltage Gain Step Size: 0.25 dB
  • Input Impedance: 100 Ω
  • Parallel and Serial Gain Control
  • Power Down Capability

The LMH6881 is a high-speed, high-performance, programmable differential amplifier. With a bandwidth of 2.4 GHz and high linearity of 44 dBm OIP3, the LMH6881 is suitable for a wide variety of signal conditioning applications.

The LMH6881 programmable differential amplifier combines the best of both fully differential amplifiers and variable-gain amplifiers. The device offers superior noise and distortion performance over the entire gain range without external resistors, enabling the use of just one device and one design for multiple applications requiring different gain settings.

The LMH6881 is an easy-to-use amplifier that can replace both fully differential, fixed-gain amplifiers as well as variable-gain amplifiers. The LMH6881 requires no external gain-setting components and supports gain settings from 6 dB to 26 dB with small, accurate 0.25-dB gain steps. With an input impedance of 100 Ω, the LMH6881 is easy to drive from a variety of sources such as mixers or filters. The LMH6881 also supports 50-Ω single-ended signal sources and supports both DC- and AC-coupled applications.

Parallel gain control allows the LMH6881 to be soldered down in a fixed-gain so that no control circuit is required. If dynamic-gain control is desired, the LMH6881 can be changed with SPI™ serial commands or with the parallel pins.

The LMH6881 is fabricated in TI’s CBiCMOS8 proprietary complementary silicon germanium process and is available in a space-saving, thermally enhanced 24-pin lead quad WQFN package. The same amplifier is offered in a dual package as the LMH6882.

The LMH6881 is a high-speed, high-performance, programmable differential amplifier. With a bandwidth of 2.4 GHz and high linearity of 44 dBm OIP3, the LMH6881 is suitable for a wide variety of signal conditioning applications.

The LMH6881 programmable differential amplifier combines the best of both fully differential amplifiers and variable-gain amplifiers. The device offers superior noise and distortion performance over the entire gain range without external resistors, enabling the use of just one device and one design for multiple applications requiring different gain settings.

The LMH6881 is an easy-to-use amplifier that can replace both fully differential, fixed-gain amplifiers as well as variable-gain amplifiers. The LMH6881 requires no external gain-setting components and supports gain settings from 6 dB to 26 dB with small, accurate 0.25-dB gain steps. With an input impedance of 100 Ω, the LMH6881 is easy to drive from a variety of sources such as mixers or filters. The LMH6881 also supports 50-Ω single-ended signal sources and supports both DC- and AC-coupled applications.

Parallel gain control allows the LMH6881 to be soldered down in a fixed-gain so that no control circuit is required. If dynamic-gain control is desired, the LMH6881 can be changed with SPI™ serial commands or with the parallel pins.

The LMH6881 is fabricated in TI’s CBiCMOS8 proprietary complementary silicon germanium process and is available in a space-saving, thermally enhanced 24-pin lead quad WQFN package. The same amplifier is offered in a dual package as the LMH6882.

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Documentación técnica

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Ver todo 4
Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos LMH6881 DC to 2.4-GHz, High-Linearity, Programmable Differential Amplifier datasheet (Rev. F) PDF | HTML 6/02/2015
Libro electrónico The Signal e-book: A compendium of blog posts on op amp design topics PDF | HTML 28/03/2017
Más documentación Featured High Speed Differential Amplifiers 23/10/2012
Nota sobre la aplicación LMH6881 - Making Differential Amplifier Design Easy (Rev. A) 18/10/2012

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

LMH6881EVAL — Módulo de evaluación LMH6881

The LMH6881EVAL is an easy to use, fully assembled, evaluation kit for the LMH6881 Programmable Gain Amplifier. The LMH6881EVAL has been designed to provide high performance measurements using single ended test equipment. The LMH6881EVAL has also been designed to be modified by the user for (...)
Guía del usuario: PDF
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Modelo de simulación

LMH6881 ADS Model

SNOM341.ZIP (65 KB) - Modelo Spice
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Modelo de simulación

LMH6881 PSpice Model

SNAM246.ZIP (145 KB) - Modelo PSpice
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Modelo de simulación

LMH6881 TINA-TI Reference Design

SNOM334.TSC (3443 KB) - Diseño de referencia TINA-TI
Productos y hardware compatibles
Modelo de simulación

LMH6881 TINA-TI Spice Model

SNOM335.ZIP (11 KB) - Modelo TINA-TI Spice
Productos y hardware compatibles
Diseño de referencia

TIDA-00092 — Optimización de LMH6554 para impulsar ADC de alta velocidad

This reference design shows the ability of the high-speed amplifier, LMH6554, to perform single-ended to differential conversion to drive high-speed analog-to-digital converters (ADCs) while maintaining excellent noise and distortion performance. Performance versus input frequency is shown for both (...)

Productos y hardware compatibles
Diseño de referencia

TIDA-00093 — Diseño de referencia de la optimización de THS4509 para impulsar el ADC de alta velocidad

This reference design shows the ability of the high-speed amplifier, THS4509 to perform single-ended to differential conversion to drive high-speed analog-to-digital converters (ADCs) while maintaining excellent noise and distortion performance. Performance versus input frequency is shown for both (...)

Productos y hardware compatibles
Diseño de referencia

TIDA-00094 — Diseño de referencia del digitalizador de 250 Msps de cuatro canales con amplificador de ganancia va

This reference design shows a quad channel, 14-bit, 250-Msps digitizer with wide input range using the LMH6881 programmable differential amplifier and ADS4449 quad-channel, 14-bit, 250-Msps ADC. This combination allows an input voltage range of approximately 1 Vpp to 100 uVpp (4 dBm to -75 dBm) (...)

Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
WQFN (RTW) 24 Ultra Librarian

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