The MAX2055 is a high-performance, digitally controlled, variable-gain, differential analog-to-digital converter (ADC) driver/amplifier (DVGA). It is designed for use from 30MHz to 300MHz in base station receivers and integrates a digitally controlled attenuator and a high-linearity single-ended-to-differential output amplifier. The MAX2055 is ideal for applications requiring high performance and can adjust gain either dynamically or as a one-time channel gain setting. It provides 23dB of attenuation range with ±0.2dB accuracy.
The MAX2055 is a high‑performance, digitally controlled variable‑gain differential ADC driver/amplifier designed for use from 30 MHz to 300 MHz in base‑station receivers and other high‑frequency systems. It integrates a digitally controlled attenuator and a single‑ended‑to‑differential output amplifier, providing up to 23 dB of attenuation with +0.2 dB accuracy.
Key specifications include a gain range of –3 dB to +20 dB, 40 dBm output IP3, 5.8 dB noise figure at maximum gain, and operation over –40 °C to +85 °C in a 20‑pin TSSOP‑EP package. The device is suited for cellular base stations, broadband systems, ADC driver applications, and automatic test equipment.
| Frequency Range | 30 MHz to 300 MHz |
|---|---|
| Gain Range | -3 dB to +20 dB |
| Attenuation Range | 23 dB |
| Noise Figure | 5.8 dB at maximum gain |
| Output IP3 | 40 dBm |
| Supply Voltage | 4.75 V to 5.25 V |
| Supply Current (typical) | 240 mA |
| Package | 20‑pin TSSOP‑EP |
The MAX2055 operates from 30 MHz to 300 MHz.
The device requires a supply voltage between 4.75 V and 5.25 V.
The MAX2055 delivers a 40 dBm output IP3 across all gain states.