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LMH32404-Q1

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

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LMH32404-Q1

ACTIVO
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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 x 4
  • 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.

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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.

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Documentación técnica

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* Data sheet LMH32404-Q1 Four-Channel, Differential Output, Multiplexed Transimpedance Amplifier With Integrated Clamping and Ambient Light Cancellation datasheet (Rev. A) PDF | HTML 01 nov 2021
Application brief Time of Flight and LIDAR - Optical Front End Design (Rev. A) PDF | HTML 29 abr 2022
Application note How to Increase the Channel Density of LiDAR Systems with the 4-Channel LMH32404 PDF | HTML 07 may 2021
EVM User's guide LMH32404RHFEVM User's Guide PDF | HTML 08 dic 2020

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

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The LMH32404RHFEVM is an evaluation module (EVM) for the LMH32404RHF differential output transimpedance amplifier. The EVM features a transformer to convert the output to a 50-Ω single-ended connection for easy measurement with standard test equipment, and the option to convert to (...)
Guía del usuario: PDF | HTML
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Modelo de simulación

LMH32404-Q1 PSpice Model

SBOMBR0.ZIP (39 KB) - PSpice Model
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Modelo de simulación

PSpice Circuit Containing LMH32404 Model

SBOMBK6.ZIP (39 KB) - PSpice Model
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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
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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN (RHF) 28 Ultra Librarian
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Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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