High Reverse Isolation Buffer Amplifier
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.
Key Features
| Applications/Uses
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| title | Download file |
|---|---|
| MAX2472-MAX2473 Data Sheet | MAX2472-MAX2473.pdf |
| 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 | |||||||||
| Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
|---|---|---|---|---|---|
| MAX2473EUT+ | Active | SOT,;6 pin;9 mm² | -40°C to +85°C | Lead Free | |
| MAX2473EUT+T | Active | SOT,;6 pin;9 mm² | -40°C to +85°C | Lead Free | |
| MAX2473EUT-T | No Longer Available | MAX2473EUT+T | SOT,;6 pin;9 mm² | -40°C to +85°C | No |
