Inicio Amplificadores Amplificadores de función especial Amplificadores de transimpedancia

LMH32404-Q1

ACTIVO

Amplificador de transimpedancia de 4 canales y salida diferencial con multiplexación integrada para

Detalles del producto

Number of channels 4 GBW (typ) (MHz) 350 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 3.45 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3 Vos (offset voltage at 25°C) (max) (mV) 20 Rail-to-rail No Features Integrated TIA BW at Acl (MHz) 350 Operating temperature range (°C) -40 to 125 Rating Automotive
Number of channels 4 GBW (typ) (MHz) 350 Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V) 3.45 Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V) 3 Vos (offset voltage at 25°C) (max) (mV) 20 Rail-to-rail No Features Integrated TIA BW at Acl (MHz) 350 Operating temperature range (°C) -40 to 125 Rating Automotive
VQFN (RHF) 28 20 mm² (5 mm × 4 mm)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Gain: 20 kΩ
  • Performance, CPD = 1 pF:
    • Bandwidth: 350 MHz
    • Input-referred noise: 56 nARMS
    • Rise, fall time: 1.25 ns
  • Quiescent current: 28 mA/channel
  • Standby mode: 10 mA/channel
  • Low power mode: 2.5 mA (4 channels)
  • Channel switching time: 10 ns
  • Integrated ambient light cancellation
  • Integrated 100-mA protection clamp
  • 4 Input channels and 4 differential output channels
  • Integrated multiplexer enables flexible configurability between optical sensor and ADC/TDC
  • Multiple LMH32404s can be combined in parallel to create a wider field-of-view (FoV)
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Gain: 20 kΩ
  • Performance, CPD = 1 pF:
    • Bandwidth: 350 MHz
    • Input-referred noise: 56 nARMS
    • Rise, fall time: 1.25 ns
  • Quiescent current: 28 mA/channel
  • Standby mode: 10 mA/channel
  • Low power mode: 2.5 mA (4 channels)
  • Channel switching time: 10 ns
  • Integrated ambient light cancellation
  • Integrated 100-mA protection clamp
  • 4 Input channels and 4 differential output channels
  • Integrated multiplexer enables flexible configurability between optical sensor and ADC/TDC
  • Multiple LMH32404s can be combined in parallel to create a wider field-of-view (FoV)

The LMH32404-Q1 is a quad-channel, single-ended-input to differential-output transimpedance amplifier (TIA) for light detection and ranging (LIDAR) applications and laser distance measurement systems.

The LMH32404-Q1 has an integrated 100-mA clamp on each channel that protects the amplifier and allows the device to recover rapidly from an overloaded input condition. The LMH32404-Q1 also features an integrated ambient light cancellation (ALC) circuit on each channel that can be used instead of AC coupling between the photodiode and the amplifier to save board space and system cost. The ALC loop should be disabled when DC and low frequency content is measured.

Each LMH32404-Q1 channel has integrated switches on the output to disconnect the differential output amplifier from the output pins and put the channel in standby mode. When switching between different channels, the transistion time is only 10 ns. The LMH32404-Q1 can be placed in low-power mode using the EN pin to conserve power when the amplifier is not being used.

.

.

The LMH32404-Q1 is a quad-channel, single-ended-input to differential-output transimpedance amplifier (TIA) for light detection and ranging (LIDAR) applications and laser distance measurement systems.

The LMH32404-Q1 has an integrated 100-mA clamp on each channel that protects the amplifier and allows the device to recover rapidly from an overloaded input condition. The LMH32404-Q1 also features an integrated ambient light cancellation (ALC) circuit on each channel that can be used instead of AC coupling between the photodiode and the amplifier to save board space and system cost. The ALC loop should be disabled when DC and low frequency content is measured.

Each LMH32404-Q1 channel has integrated switches on the output to disconnect the differential output amplifier from the output pins and put the channel in standby mode. When switching between different channels, the transistion time is only 10 ns. The LMH32404-Q1 can be placed in low-power mode using the EN pin to conserve power when the amplifier is not being used.

.

.

Descargar Ver vídeo con transcripción Video

Productos similares que pueden interesarle

open-in-new Comparar alternativas
Funcionalidad similar a la del dispositivo comparado
LMH32401 ACTIVO Amplificador de transimpedancia de alta velocidad de salida diferencial de ganancia programable A single-channel transimpedance amplifier with programable gain for smaller systems requiring different gain options
LMH32401-Q1 ACTIVO Amplificador de transimpedancia de alta velocidad de salida diferencial de ganancia programable auto Single channel with programable gain for smaller systems requiring different gain options

Documentación técnica

No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 3
Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos LMH32404-Q1 Four-Channel, Differential Output, Multiplexed Transimpedance Amplifier With Integrated Clamping and Ambient Light Cancellation datasheet (Rev. A) PDF | HTML 1/11/2021
Application brief Time of Flight and LIDAR - Optical Front End Design (Rev. A) PDF | HTML 29/04/2022
Nota sobre la aplicación How to Increase the Channel Density of LiDAR Systems with the 4-Channel LMH32404 PDF | HTML 7/05/2021

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

LMH32404RHFEVM — Módulo de evaluación de amplificador de transimpedancia de 4 canales, 250 MHz y salida diferencial

El LMH32404RHFEVM es un módulo de evaluación (EVM) para el amplificador de transimpedancia de salida diferencial LMH32404RHF. El EVM cuenta con un transformador para convertir la salida en una conexión de un solo extremo de 50 Ω para facilitar la medición con equipos de prueba estándar y la opción (...)
Guía del usuario: PDF | HTML
Productos y hardware compatibles
En inventario
Límite:
??asset.out-of-stock-ti_es_MX??
No disponible
Modelo de simulación

LMH32404-Q1 PSpice Model

SBOMBR0.ZIP (39 KB) - Modelo PSpice
Productos y hardware compatibles
Modelo de simulación

PSpice Circuit Containing LMH32404 Model

SBOMBK6.ZIP (39 KB) - Modelo PSpice
Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN (RHF) 28 Ultra Librarian

Pedidos y calidad

Soporte y capacitación

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

El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

Si tiene alguna pregunta sobre calidad, encapsulados o pedido de productos de TI, consulte el servicio de asistencia de TI. ​​​​​​​​​​​​​​

Videos