Digitally Controlled, Variable-Gain, Differential ADC Driver/Amplifier

Industry's First Low-Distortion, IF Differential ADC Driver with Digitally Selectable Gain

Please check latest availability status for a specific part variant.


The MAX2055 high-performance, digitally controlled, variable-gain, differential analog-to-digital converter (ADC) driver/amplifier (DVGA) is designed for use from 30MHz to 300MHz in base-station receivers.

The device integrates a digitally controlled attenuator and a high-linearity single-ended-to-differential output amplifier, which can either eliminate an external transformer, or can improve the even-order distortion performance of a transformer-coupled circuit, thus relaxing the requirements of the anti-alias filter preceding an ADC. Targeted for ADC driver applications to adjust gain either dynamically or as a one-time channel gain setting, the MAX2055 is ideal for applications requiring high performance. The attenuator provides 23dB of attenuation range with ±0.2dB accuracy.

The MAX2055 is available in a thermally enhanced 20-pin TSSOP-EP package and operates over the -40°C to +85°C temperature range.
MAX2055: Typical Application Circuit MAX2055: Typical Application Circuit Enlarge+

Key Features

  • 30MHz to 300MHz Frequency Range
  • Single-Ended-to-Differential Conversion
  • -3dB to +20dB Variable Gain
  • 40dBm Output IP3 (at All Gain States and 70MHz)
  • 2nd Harmonic -76dBc
  • 3rd Harmonic -69dBc
  • Noise Figure: 5.8dB at Maximum Gain
  • Digitally Controlled Gain with 1dB Resolution and ±0.2dB Accuracy
  • Adjustable Bias Current


  • Automated Test Equipment (ATE)
  • Broadband Systems
  • Cell Phone Base Stations
  • High-Performance ADC Drivers
  • PHS/PAS Infrastructure
  • Receiver Gain Control
  • Terrestrial Links
Part NumberGain Cntl.ChannelsRF Freq.
RF Freq.
Digital Attenuation Range
Digital Attenuator Step Size
Noise Figure
(mm x mm)
Package/PinsOper. Temp.
minmaxmaxSee Notes
MAX2055 Digital130300231205.84075-76-694.75 to 5.252406.4 x 6.5
-40 to +85$6.05 @1k
See All RF and IF Variable Gain Amplifiers (17)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX2055EVKIT: Evaluation Kit for the MAX2055

CAD Symbols and Footprints

  • MAX2055EUP+D
  • MAX2055EUP+TD
  • MAX2055EUP-D
  • MAX2055EUP-TD
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >


    Related Resources

    16-Bit, 5.9Gsps Interpolating and Modulating RF DAC with JESD204B Interface

    • Simplifies RF Design and Enables New Wireless Communication Architectures
    • Direct RF Synthesis of 600MHz Bandwidth Up to 2.8GHz
    • Highly Flexible and Configurable

    USB-to-SPI Interface Adapter for SC1905 and SC1894

    • USB interface connection to the serial parallel interface to the SC1894 and the SC1905
    • Windows 10, Windows 7
    • USB 3.0 and USB 2.0

    698MHz to 3800MHz RF Power Amplifier Linearizer (RFPAL)

    • RFin/RFout PA Linearizer SoC in Standard CMOS
    • External Reference Clock Support:
    • Low Power Consumption: 1280mW

    300MHz–960MHz ASK Transmitter with I2C Interface

    • Low Implementation Cost
    • Increased Range, Data Rates, and Security
    • Extend Battery Life with Low Supply Current

    300MHz–960MHz ASK Transmitter with I2C Interface

    • Low Implementation Cost
    • Increased Range, Data Rates, and Security
    • Extend Battery Life with Low Supply Current