LMH6321
- High slew rate 1800 V/µs
- Wide bandwidth 110 MHz
- Continuous output current ±300 mA
- Output current limit tolerance ±5 mA ±5%
- Wide supply voltage range 5 V to ±15 V
- Wide temperature range −40°C to +125°C
- Adjustable current limit
- High capacitive load drive
- Thermal shutdown error flag
The LMH6321 is a high speed unity gain buffer that slews at 1800 V/µs and has a small signal bandwidth of 110 MHz while driving a 50 Ω load. It can drive ±300 mA continuously and will not oscillate while driving large capacitive loads.
The LMH6321 features an adjustable current limit. The current limit is continuously adjustable from 10 mA to 300 mA with a ±5 mA ±5% accuracy. The current limit is set by adjusting an external reference current with a resistor. The current can be easily and instantly adjusted, as needed by connecting the resistor to a DAC to form the reference current. The sourcing and sinking currents share the same current limit.
The LMH6321 is available in a space saving 8-pin SO PowerPAD or a 7-pin DDPAK power package. The SO PowerPAD™ package features an exposed pad on the bottom of the package to increase its heat sinking capability. The LMH6321 can be used within the feedback loop of an operational amplifier to boost the current output or as a stand alone buffer.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | LMH6321 300 mA High Speed Buffer with Adjustable Current Limit datasheet (Rev. D) | PDF | HTML | 2021/9/24 | ||
| 電子書 | The Signal e-book: A compendium of blog posts on op amp design topics | PDF | HTML | 2017/3/28 | |||
| 使用指南 | LMH6321 PSOP & TO-263 Sin Open Loop HS Buffer Eval Brds (Rev. C) | 2013/5/3 | ||||
| 應用說明 | Reference Clock Loop Through Application | 2009/1/16 |
設計與開發
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LMH6321MR-EVAL — 適用於採用 8 針腳 PSOP 封裝之高速單開迴路緩衝器的評估 PCB
TI offers this unpopulated Evaluation Board to aid in the evaluation and testing of high-speed Open-Loop Buffer that are offered in the 8-Pin PSOP package. Resistors, capacitors, or any other surface-mount components can be easily mounted on this board in the desired circuit configuration. The (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| TO-263 (KTW) | 7 | Ultra Librarian |
| HSOIC (DDA) | 8 | Ultra Librarian |