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LMH32401

現行

可編程增益差動輸出高速轉阻放大器

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產品規格表

LMH32401

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 1 GBW (typ) (MHz) 450 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) 450 Operating temperature range (°C) -40 to 125 Rating Catalog
Number of channels 1 GBW (typ) (MHz) 450 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) 450 Operating temperature range (°C) -40 to 125 Rating Catalog
DIESALE (Y) — See data sheet VQFN (RGT) 16 9 mm² 3 x 3
  • Integrated programmable gain: 2 kΩ or 20 kΩ
  • Performance, gain = 2 kΩ, CPD = 1 pF:
    • Bandwidth: 450 MHz
    • Input-referred noise: 250 nARMS
    • Rise, fall time: 0.8 ns
  • Performance, gain = 20 kΩ, CPD = 1 pF:
    • Bandwidth: 275 MHz
    • Input-referred noise: 49 nARMS
    • Rise, 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
  • Packages: 16-pin VQFN and bare die
  • Temperature range: –40 to +125°C
  • Integrated programmable gain: 2 kΩ or 20 kΩ
  • Performance, gain = 2 kΩ, CPD = 1 pF:
    • Bandwidth: 450 MHz
    • Input-referred noise: 250 nARMS
    • Rise, fall time: 0.8 ns
  • Performance, gain = 20 kΩ, CPD = 1 pF:
    • Bandwidth: 275 MHz
    • Input-referred noise: 49 nARMS
    • Rise, 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
  • Packages: 16-pin VQFN and bare die
  • Temperature range: –40 to +125°C

The LMH32401 device is a programmable-gain, single-ended, input-to-differential output transimpedance amplifier for light detection and ranging (LIDAR) applications and laser distance measurement systems. The LMH32401 device can be configured in a gain of 2 kΩ or 20 kΩ. The LMH32401 device has 1.5 VPP of output swing and is designed to drive a 100-Ω load.

The LMH32401 device has an integrated 100-mA clamp that protects the amplifier and allows the device to recover rapidly from an overloaded input condition. The LMH32401 device also features an integrated ambient light cancellation circuit that can be used instead of AC coupling between the photodiode and the amplifier to save board space in addition to reducing system cost. The ambient light cancellation circuit can be disabled in cases where DC coupling is required.

The LMH32401 device can be placed in low-power mode using the EN pin to conserve power when the amplifier is not being used. Putting the amplifier in low-power mode places its output pins in a high-impedance state. This feature allows several LMH32401 amplifiers to be multiplexed to a single ADC with the EN control pin serving as the multiplexer select function.

The LMH32401 device is a programmable-gain, single-ended, input-to-differential output transimpedance amplifier for light detection and ranging (LIDAR) applications and laser distance measurement systems. The LMH32401 device can be configured in a gain of 2 kΩ or 20 kΩ. The LMH32401 device has 1.5 VPP of output swing and is designed to drive a 100-Ω load.

The LMH32401 device has an integrated 100-mA clamp that protects the amplifier and allows the device to recover rapidly from an overloaded input condition. The LMH32401 device also features an integrated ambient light cancellation circuit that can be used instead of AC coupling between the photodiode and the amplifier to save board space in addition to reducing system cost. The ambient light cancellation circuit can be disabled in cases where DC coupling is required.

The LMH32401 device can be placed in low-power mode using the EN pin to conserve power when the amplifier is not being used. Putting the amplifier in low-power mode places its output pins in a high-impedance state. This feature allows several LMH32401 amplifiers to be multiplexed to a single ADC with the EN control pin serving as the multiplexer select function.
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類型 標題 日期
* Data sheet LMH32401 450-MHz, Programmable Gain, Differential Output Transimpedance Amplifier datasheet (Rev. D) PDF | HTML 2023年 1月 13日
Application brief LiFi: TI High-Speed Products for Optical Wireless Communication PDF | HTML 2023年 8月 7日
Application brief Time of Flight and LIDAR - Optical Front End Design (Rev. A) PDF | HTML 2022年 4月 29日
User guide LMH32401IRGT Evaluation Module User's Guide 2019年 10月 13日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

LMH32401RGTEVM — 適用可編程增益差動輸出轉阻放大器的 LMH32401 評估模型

LMH32401RGT 評估模組 (EVM) 是適用 RGT 封裝 LMH32401 差動輸出轉阻放大器的開發平台。EVM 配備變壓器，可將輸出轉為 50-Ω 單端連接，以利用標準測試設備輕鬆進行測量，並可選擇轉為全差動 DC 耦合訊號。輸入為 50-Ω 匹配，且預設配置為接收透過 2-kΩ 電阻器轉為電流的電壓輸入，但可重新配置以接收電路板背面選用光二極體偏壓連接的真實電流輸入。

LMH32401RGTEVM 還包括易於使用的跨接器，可用於控制裝置增益、輸入偏壓電流抑制和關機功能。

使用指南: PDF
TI.com 無法提供
開發板

TSW12QJ1600EVM — ADC12QJ1600-Q1 8 通道 (兩個同步 4 通道) 12 位元 1.6-GSPS JESD204C 介面 ADC 評估模組

TSW12QJ1600 評估模組 (EVM) 用於評估具備不同前端選項的 ADC12QJ1600-Q1 類比轉數位轉換器 (ADC)。ADC12QJ1600-Q1 是一款具有四個類比輸入通道的 12 位元 ADC，能以高達每秒 1.6 千兆取樣率 (GSPS) 運作。

此設計在相同印刷電路板 (PCB) 上有兩項 ADC12QJ1600-Q1 裝置，可用來展示多個 ADC 同步化、決定性延遲，並以各種前端選項 (AC 耦合變壓器；DC 耦合選項與 LMH32401) 測試 ADC 的性能。此設計也示範如何透過菊鏈將 PLL 參考輸出 (PLLREFO+、PLLREFO-) 從一個 ADC (...)

使用指南: PDF
TI.com 無法提供
模擬型號

LMH32401 PSpice Model (Rev. A)

SBOMB24A.ZIP (29 KB) - PSpice Model
下載
模擬型號

LMH32401 and LMH32401-Q1 TINA-TI Reference Design (Rev. C)

SBOMB18C.TSC (9729 KB) - TINA-TI Reference Design
下載
模擬型號

LMH32401 and LMH32401-Q1 TINA-TI Spice Model

SBOMB23.TSM (19 KB) - TINA-TI Spice Model
下載
模擬型號

LMH32401 for PSpice Library (Rev. B)

SBOMB64B.ZIP (39 KB) - PSpice Model
下載
模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

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 (...)
要求
模擬工具

TINA-TI — 基於 SPICE 的類比模擬程式

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 (...)
使用指南: PDF
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DIESALE (Y) —
VQFN (RGT) 16 檢視選項
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