LMH6503
- VS = ±5V, TA = 25°C, RF = 1kΩ, RG = 174Ω, RL = 100Ω, AV = AV(MAX) = 10, Typical Values Unless Specified.
- -3dB BW 135MHz
- Gain Control BW 100MHz
- Adjustment Range (Typical Over Temp) 70dB
- Gain Matching (Limit) ±0.7dB
- Slew Rate 1800V/µs
- Supply Current (No Load) 37mA
- Linear Output Current ±75mA
- Output Voltage (RL = 100Ω) ±3.2V
- Input Voltage Noise 6.6nV/√Hz
- Input Current Noise 2.4pA/√Hz
- THD (20MHz, RL = 100Ω, VO = 2VPP) −57dBc
- Replacement for CLC522
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The LMH6503 is a wideband, DC coupled, differential input, voltage controlled gain stage followed by a high-speed current feedback Op Amp which can directly drive a low impedance load. Gain adjustment range is more than 70dB for up to 10MHz.
Maximum gain is set by external components and the gain can be reduced all the way to cut-off. Power consumption is 370mW with a speed of 135MHz . Output referred DC offset voltage is less than 350mV over the entire gain control voltage range. Device-to-device Gain matching is within 0.7dB at maximum gain. Furthermore, gain at any VG is tested and the tolerance is ensured. The output current feedback Op Amp allows high frequency large signals (Slew Rate = 1800V/μs) and can also drive heavy load current (75mA). Differential inputs allow common mode rejection in low level amplification or in applications where signals are carried over relatively long wires. For single ended operation, the unused input can easily be tied to ground (or to a virtual half-supply in single supply application). Inverting or non-inverting gains could be obtained by choosing one input polarity or the other.
To further increase versatility when used in a single supply application, gain control range is set to be from −1V to +1V relative to pin 11 potential (ground pin). In single supply operation, this ground pin is tied to a "virtual" half supply. Gain control pin has high input impedance to simplify its drive requirement. Gain control is linear in V/V throughout the gain adjustment range. Maximum gain can be set to be anywhere between 1V/V to 100V/V or higher. For linear in dB gain control applications, see LMH6502 datasheet.
The LMH6503 is available in the SOIC-14 and TSSOP-14 package.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | LMH6503 Wideband, Low Power, Linear Variable Gain Amplifier 数据表 (Rev. E) | 2013-4-4 | |||
| 电子书 | The Signal e-book: 有关运算放大器设计主题的博客文章汇编 | PDF | HTML | 英语版 | PDF | HTML | 2018-1-31 | |
| EVM 用户指南 | AN-1808 LMH730033 Evaluation Board (Rev. B) | 2013-5-1 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
LMH730033 — 用于采用 14 引脚 SOIC 封装的高速单路可变增益放大器的评估板
National Semiconductor offers this unpopulated Evaluation Board to aid in the evaluation and testing of high-speed Variable Gain Amplifier that are offered in the 14-Pin SOIC package. Resistors, capacitors, or any other surface-mount components can be easily mounted on this board in the desired (...)
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| SOIC (D) | 14 | Ultra Librarian |
| TSSOP (PW) | 14 | Ultra Librarian |