LMH34400
- Integrated gain: 40 kΩ
- Performance, C PD = 1 pF:
- Bandwidth: 240 MHz
- Input-referred noise: 50 nA RMS
- Rise, fall time: 1.5 ns
- Integrated ambient light cancellation
- Integrated 100-mA protection clamp
- Quiescent current: 20 mA
- Low-power mode current: 1.5 mA
- Temperature range: –40°C to +125°C
The LMH34400 is the industries smallest, fixed-gain, single-ended transimpedance amplifier for light detection and ranging (LIDAR) applications and laser distance measurement systems. The LMH34400 produces 1.0 V PP of output swing and has an input-referred noise of 50 nA RMS.
The LMH34400 has an integrated 100‑mA clamp that protects the amplifier and allows the device to recover rapidly from an overloaded input condition. The LMH34400 also features an integrated ambient light cancellation (ALC) circuit that can be used instead of ac coupling between the photodiode and the amplifier to save board space and system cost. Disable the ALC loop in cases where the frequency signal content to be measured is less than 400 kHz.
When the amplifier is not being used, the LMH34400 can be placed in low-power mode using the EN pin to conserve power. This feature allows several LMH34400 amplifiers to be multiplexed to the input of the next stage of the receive signal chain with the EN control pin serving as the multiplexer select function. The LMH34400 offers a single-ended output and is optimized for use with time-to-digital converter (TDC) based LIDAR systems.
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技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | LMH34400 240-MHz, Single-Ended, Transimpedance Amplifier With Integrated Clamp datasheet (Rev. C) | PDF | HTML | 2023年 8月 31日 |
Application brief | Improving Mobile Robot Vision Sensors With LiDAR | PDF | HTML | 2024年 8月 14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 | |
Certificate | LMH34400DRLEVM EU RoHS Declaration of Conformity (DoC) | 2022年 3月 3日 | ||
EVM User's guide | LMH34400 Evaluation Module | PDF | HTML | 2022年 2月 4日 |
設計與開發
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LMH34400DRLEVM — 適用於 275-MHz、單端輸出、轉阻放大器的 LMH34400 評估模組
LMH34400DRLEVM 是用於 LMH34400DRL 單端轉阻放大器的評估模組 (EVM)。EVM 搭載 50-Ω 同軸輸入與輸出接頭,可輕鬆測量標準測試設備,而此選項也可套用 1-VDC 偏壓至板載穩壓器的輸出端。預設配置輸入,以接收透過 2k-Ω 電阻轉換為電流的電壓訊號。EVM 還包括易於使用的跨接器,可用於控制輸出偏壓電壓、輸入偏壓電流抑制和裝置關機功能。
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
TINA-TI — 基於 SPICE 的類比模擬程式
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
SOT-5X3 (DRL) | 6 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。