Analog Devices Inc./Maxim Integrated MAX2130EUA

Overview

The MAX2130EUA from Maxim Integrated is a broadband, two-output, low-noise amplifier designed for TV tuner front-end signal conditioning-specifically performing LNA and loop-out amplification in 75Ω RF systems. It delivers +15dB LNA gain, <3.2dB noise figure, and +17.5dBm input IP3 across 44MHz–878MHz, operating from a +5V supply with 93mA nominal current draw in DVB-T and terrestrial TV tuner applications.

For engineers reviewing the MAX2130EUA datasheet, MAX2130EUA pinout, MAX2130EUA application, or MAX2130EUA equivalent, this page provides verified functional specifications, validated bias-dependent linearity trade-offs, confirmed 8-pin µMAX-EP package mapping, and real-world return loss and isolation performance at 75Ω system impedance.

Technical Context

The MAX2130EUA integrates two independent broadband amplifiers-a high-gain LNA (OUT1, open-collector) and a buffered loop-out amplifier (OUT2, internally biased)-both sharing a single externally adjustable bias network (RBIAS from BIAS to GND). Its dual-output architecture enables simultaneous signal distribution to tuner demodulator and downstream IF processing without external splitting.

It employs internal 75Ω input matching and requires only passive external components: a pull-up inductor on OUT1, 0.1µF AC-coupling caps on IN/OUT1/OUT2, and dual VCC bypassing (47pF || 1000pF). Bias tuning via RBIAS directly controls supply current, IP3, IP2, and P1dB-enabling dynamic linearity optimization across temperature and frequency bands.

Key Specifications

Pinout & Package

The MAX2130EUA is housed in an 8-pin µMAX-EP package with exposed paddle (EP) for thermal dissipation. The package measures 3mm × 3mm × 0.8mm and features GND connections on pins 4, 6, 7, and EP for low-inductance grounding.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar broadband RF amplifier applications.

Compared with MAX2130EUA, MAX2120EUA offers lower power but sacrifices signal distribution flexibility, while SKY77557-365LF provides superior noise performance at 3.3V but cannot replace MAX2130EUA in +5V, dual-output, bias-programmable systems.

Availability

MAX2130EUA is available at Aetrix Electronics and suitable for DVB-T digital broadcast receivers, digital terrestrial TV tuners, and cable modem downstream signal conditioning requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX2130EUA includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Maxim Integrated (now part of Analog Devices) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and RF ICs for communications, computing, and industrial applications.

The MAX2130EUA belongs to Maxim's TV tuner front-end amplifier product line, engineered specifically to consolidate preamp, loop-out, and buffer functions into a single 75Ω-matched device for global digital broadcast standards.

FAQ

What is the recommended pull-up inductor value for MAX2130EUA OUT1?

The MAX2130EUA OUT1 port requires a broadband pull-up inductor to VCC-not a specific value, but one providing >150Ω impedance across 44MHz–878MHz. Murata BLM11A221S (220Ω @ 100MHz) is validated in the datasheet. Other qualified parts include BLM11A471SG and BLM10A221SG. Inductor selection must avoid resonance within the operating band; the MAX2130EUA's internal biasing relies on this inductor for proper DC current path.

Can MAX2130EUA operate from a 3.5V supply?

Yes, the MAX2130EUA can operate from +3.5V, though performance degrades: LNA input P1dB drops to +2.1dBm (vs. +2.7dBm at +5V), and gain flatness may widen slightly. All AC specs-including noise figure, IP3, and return loss-are characterized at +5V. For reliable DVB-T operation across temperature, +5V is strongly recommended; 3.5V use is limited to low-power auxiliary paths where linearity margins allow.

How does RBIAS affect MAX2130EUA performance beyond supply current?

RBIAS directly sets the bias current for both amplifier sections, altering key RF metrics: reducing RBIAS (e.g., from 15kΩ to 10kΩ) increases supply current and improves IP3/IP2/P1dB but raises noise figure slightly; increasing RBIAS lowers current and degrades linearity while maintaining gain and improving noise figure marginally. Gain remains stable (<±0.3dB change) across RBIAS = 10kΩ–30kΩ, making it a true linearity-vs-power tuning port for the MAX2130EUA.

Is MAX2130EUA pin-compatible with other Maxim tuner amplifiers like MAX2110?

No, MAX2130EUA is not pin-compatible with MAX2110 or MAX2120. While all are 8-pin µMAX-EP devices, their pin functions differ significantly: MAX2110 has separate VCC1/VCC2 supplies and different output configurations; MAX2120 lacks OUT2 and repurposes Pin 5. The MAX2130EUA's BIAS pin (Pin 3) and dual-output topology are unique to this family. Board-level replacement requires schematic and layout revision.

What is the maximum RF input power the MAX2130EUA can handle without damage?

The MAX2130EUA has an absolute maximum RF input power rating of +15dBm at the IN pin-exceeding this risks permanent damage to the input ESD structure. Under normal operation, the LNA's input 1dB compression point is +2.7dBm (at +5V, RBIAS = 15kΩ), meaning sustained signals above this level cause measurable gain compression. For robust DVB-T front-end design, input signal levels should remain ≤0dBm to preserve linearity and avoid intermodulation distortion in the MAX2130EUA.