高反向隔离缓冲放大器
The MAX2472/MAX2473 are flexible, wideband, high- reverse-isolation buffer amplifiers. The MAX2472 has dual open-collector outputs capable of delivering -5dBm into 50Ω while maintaining harmonic suppression below -25dBc. The MAX2473 has a single open-collector output with a bias control pin to vary output power from -10dBm to -2dBm while maintaining harmonic suppression below -25dBc. The MAX2472/MAX2473's combination of high reverse isolation and low supply current makes them ideal for applications requiring high performance with low power. They feature high input impedance and open-collector outputs for maximum flexibility, enabling them to be used with a variety of oscillator topologies. Both the MAX2472 and MAX2473 operate from a single +2.7V to +5.5V supply. With VCC = +3.0V and -25dBm input power, the MAX2472 consumes 5.2mA, while the MAX2473 consumes only 2.7mA. Both devices are available in a tiny 6-pin SOT23 package requiring minimal board space.
关键特性
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| 语言 | 下载文件 | 备注 |
|---|---|---|
| 英文 | MAX2472-MAX2473.pdf | Rev 0; 06/1999 |
| Part Number | LO Driver Outputs | PLL Driver Outputs | RF Freq. (MHz) | RF Freq. (MHz) | POUT (dBm) | POUT (dBm) | VCC (V) | ISUPPLY (mA) | Footprint (mm x mm) | Package/Pins | Budgetary Price |
|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | min | max | See Notes | |||||||
| MAX2472 | Yes | Yes | 500 | 2500 | -10 | -2 | 2.7 to 5.5 | 5.2 | 2.7 x 2.9 | SOT/6 | $1.43 @1k |
| MAX2473 | 2.7 to 4.8 | SOT/6 | |||||||||
| 型号 | 状况 | 推荐替代产品 | 封装 | 温度 | RoHS/无铅 |
|---|---|---|---|---|---|
| MAX2472EUT | 停止供货 | MAX2472EUT+ | SOT,；6引脚；9mm² | -40°C至+85°C | RoHS/无铅：否 |
| MAX2472EUT+ | 生产中 | SOT,；6引脚；9mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX2472EUT+T | 生产中 | SOT,；6引脚；9mm² | -40°C至+85°C | RoHS/无铅：无铅 | |
| MAX2472EUT-T | 停止供货 | MAX2472EUT+T | SOT,；6引脚；9mm² | -40°C至+85°C | RoHS/无铅：否 |
