LMH6522
- OIP3: 49dBm @ 200MHz
- Noise Figure: 8.5dB
- Voltage Gain: 26dB
- 1dB Gain Steps
- −3dB Bandwidth of 1400 MHz
- Gain Step Accuracy: 0.2 dB
- Disable Function for Each Channel
- Parallel and Serial Gain Control
- Low Power Mode for Power Management Flexibility
- Small Footprint WQFN Package
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The LMH6522 contains four, high performance, digitally controlled variable gain amplifiers (DVGA). It has been designed for use in narrowband and broadband IF sampling applications. Typically, the LMH6522 drives a high performance ADC in a broad range of mixed signal and digital communication applications such as mobile radio and cellular base stations where automatic gain control (AGC) is required to increase system dynamic range.
Each channel of LMH6522 has an independent, digitally controlled attenuator and a high linearity, differential output, amplifier. All circuitry has been optimized for low distortion and maximum system design flexibility. Power consumption is managed by a three-state enable pin. Individual channels can be disabled or placed into a Low Power Mode or a higher performance, High Power Mode.
The LMH6522 digitally controlled attenuator provides precise 1dB gain steps over a 31dB range. The digital attenuator can be controlled by either a SPI Serial bus or a high speed parallel bus.
The output amplifier has a differential output, allowing large signal swings on a single 5V supply. The low impedance output provides maximum flexibility when driving a wide range filter designs or analog to digital converters. For applications which have very large changes in signal level LMH6522 can support up to 62dB of gain range by cascading channels.
The LMH6522 operates over the industrial temperature range of −40°C to +85°C. The LMH6522 is available in a 54-Pin, thermally enhanced, WQFN package.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | LMH6522 High Performance Quad DVGA datasheet (Rev. D) | 2013年 3月 18日 | |
| E-book | The Signal e-book: A compendium of blog posts on op amp design topics | 2017年 3月 28日 | ||
| Application note | AN-1718 Differential Amplifier Applications Up to 400 MHz (Rev. B) | 2013年 5月 1日 | ||
| Application note | AN-1719 Noise Figure Analysis Fully Differential Amplifier (Rev. A) | 2013年 5月 1日 | ||
| EVM User's guide | AN-2072 LMH6522 Evaluation Board (Rev. B) | 2013年 5月 1日 | ||
| Application note | AN-2235 Ckt Brd Design for LMH6517/21/22 & Other H-Sp IF/RF F Amp (Rev. A) | 2013年 5月 1日 | ||
| Application note | Between the Amplifier and ADC: Managing Filter Loss in Communications Systems (Rev. B) | 2013年 4月 26日 | ||
| Application note | Using High Speed Diff Amp to Drive ADCs (Rev. A) | 2013年 4月 26日 | ||
| More literature | Featured High Speed Differential Amplifiers | 2012年 10月 23日 | ||
| Application note | A Walk Along the Signal Path (High-Speed Signal Path) | 2005年 3月 30日 |
設計與開發
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LMH6522EVAL — LMH6522EVAL 評估模組
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| WQFN (NJY) | 54 | 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