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LMH32401-Q1中文資料德州儀器數(shù)據(jù)手冊(cè)PDF規(guī)格書(shū)

LMH32401-Q1
廠商型號(hào)

LMH32401-Q1

功能描述

LMH32401-Q1 Automotive, 450-MHz, Programmable Gain, Differential Output Transimpedance Amplifier

文件大小

2.10555 Mbytes

頁(yè)面數(shù)量

38 頁(yè)

生產(chǎn)廠商 Texas Instruments
企業(yè)簡(jiǎn)稱

TI德州儀器

中文名稱

美國(guó)德州儀器公司官網(wǎng)

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更新時(shí)間

2025-7-11 10:20:00

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LMH32401-Q1規(guī)格書(shū)詳情

1 Features

? AEC-Q100 qualified for automotive applications:

– Temperature grade 1: –40°C to +125°C, TA

? Integrated programmable gain: 2 kΩ or 20 kΩ

? Performance at gain = 2 kΩ, CPD = 1 pF:

– Bandwidth: 450 MHz

– Input-referred noise: 250 nARMS

– Rise and fall time: 0.8 ns

? Performance at gain = 20 kΩ, CPD = 1 pF:

– Bandwidth: 275 MHz

– Input-referred noise: 49 nARMS

– Rise and fall time: 1.3 ns

? Integrated ambient light cancellation

? Integrated 100-mA protection clamp

? Integrated output multiplexer

? Wide output swing: 1.5 VPP

? Quiescent current: 30 mA

? Package: 16-pin, wettable-flank VQFN

2 Applications

? Mechanically scanning LIDAR

? Solid-state scanning LIDAR

? Industrial robot LIDAR

? Smart Munitions

3 Description

The LMH32401-Q1 automotive device is a

programmable-gain, single-ended, input-to-differential

output transimpedance amplifier for light detection

and ranging (LIDAR) applications. The LMH32401-Q1

can be configured in a gain of 2 kΩ or 20 kΩ. The

LMH32401-Q1 has 1.5 VPP of output swing and is

designed to drive a 100-Ω load.

The LMH32401-Q1 has an integrated 100-mA clamp

that protects the amplifier and allows the device to

recover rapidly from an overloaded input condition.

The LMH32401-Q1 also features an integrated

ambient-light cancellation circuit. To save board

space, as well as reduce system cost, this circuit

can be used instead of ac coupling between the

photodiode (PD) or avalanche photodiode (APD) and

the amplifier. The ambient-light cancellation circuit can

be disabled in cases where dc coupling is required.

To conserve power when the amplifier is not being

used, the LMH32401-Q1 can be placed in low-power

mode using the EN pin. When the amplifier is in lowpower

mode, the output pins are in a high-impedance

state. This feature allows several LMH32401-Q1

amplifiers to be multiplexed to a single ADC with

the EN control pin serving as the multiplexer select

function.

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