Analog Devices Inc./Maxim Integrated MAX2615ETA/V+T

Overview

MAX2615ETA/V+T from Maxim Integrated is a high-performance broadband RF gain block optimized as a PA predriver or cascadable 50Ω amplifier, delivering +19.5dBm P1dB output power, 18.5dB gain at 1GHz, and 2.2dB noise figure at 2GHz. It operates from 40MHz to 4000MHz on a 3.0V–5.25V supply with internal 50Ω input/output matching, and is AEC-Q100 qualified for automotive applications including radar front-ends and V2X transceivers.

For engineers reviewing the MAX2615ETA/V+T datasheet, MAX2615ETA/V+T pinout, MAX2615ETA/V+T application, or MAX2615ETA/V+T equivalent, key selection criteria include its adjustable bias (RBIAS) for OIP3 optimization, industry-leading +37.6dBm OIP3 at 1GHz, thermal performance in the 2mm × 3mm TDFN package, and automotive qualification under -40°C to +85°C operating conditions.

Technical Context

The MAX2615ETA/V+T employs a rugged bipolar process with Darlington architecture, enabling +20dBm maximum input power handling and inherent surge resilience without external protection circuitry. Its RBIAS pin (Pin 4) allows precise external resistor control of quiescent current (37.5mA to ~150mA), directly trading supply current against third-order intercept point (OIP3).

Unlike fixed-bias variants (e.g., MAX2612–MAX2614/MAX2616), the MAX2615ETA/V+T supports dynamic OIP3 tuning across frequency bands while maintaining flat gain response (<0.5dB variation from 1–4GHz) and stable 50Ω port matching over its full 40MHz–4000MHz bandwidth.

Key Specifications

Pinout & Package

MAX2615ETA/V+T is housed in an 8-pin, 2mm × 3mm lead-free TDFN-EP package with exposed thermal pad. The compact footprint supports high-density RF PCB layouts while enabling efficient heat dissipation (θ_JA = 60°C/W on 4-layer board).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX2615ETA/V+T, MAX2616ETA+ offers identical RF performance without bias adjustability or automotive qualification, while QPL9547TR13 extends frequency range to 6GHz but lacks integrated matching and AEC-Q100 compliance-making MAX2615ETA/V+T uniquely suited for thermally constrained, safety-critical automotive RF designs requiring tunable linearity.

Availability

MAX2615ETA/V+T is available at Aetrix Electronics and suitable for automotive radar modules, cellular infrastructure pre-driver stages, and V2X communication systems requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.

Supply support for MAX2615ETA/V+T 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, designs precision analog, mixed-signal, and RF ICs for demanding industrial, automotive, and communications applications.

The MAX2612–MAX2616 family was engineered specifically for high-linearity, wideband RF gain applications in space-constrained systems-emphasizing flat frequency response, rugged input handling, and thermal efficiency in miniature TDFN packages.

FAQ

What is the operating temperature range for MAX2615ETA/V+T?

The MAX2615ETA/V+T is rated for operation from -40°C to +85°C and is AEC-Q100 qualified (Grade 3), making it suitable for under-hood automotive environments and industrial base stations where ambient temperature extremes are expected. This range is fully specified for all AC and DC electrical parameters in the datasheet, including gain, OIP3, and noise figure.

Does MAX2615ETA/V+T require external matching components?

No, the MAX2615ETA/V+T features fully integrated 50Ω input and output matching across its 40MHz–4000MHz bandwidth, eliminating the need for external matching networks. Only standard RF layout practices apply: DC-blocking capacitors (0.01µF) at RFIN and RFOUT, a 220nH RF choke on RFOUT, and proper decoupling (470pF + 10nF + 10µF) on VCC.

How does the RBIAS pin on MAX2615ETA/V+T affect performance?

The RBIAS pin (Pin 4) on MAX2615ETA/V+T sets quiescent current via an external resistor to ground, directly controlling OIP3 and supply current: a 21.5kΩ resistor yields 81.5mA I_CC and +37.6dBm OIP3 at 1GHz, while lower resistance increases both. This enables real-time trade-offs between linearity, power consumption, and thermal dissipation without changing the PCB layout.

Is MAX2615ETA/V+T pin-compatible with other devices in the MAX2612–MAX2616 family?

Yes, MAX2615ETA/V+T shares the identical 8-pin 2mm × 3mm TDFN-EP package and pinout with MAX2612ETA+, MAX2613ETA+, MAX2614ETA+, and MAX2616ETA+, including GND (Pins 1,3,6,8), RFIN (Pin 2), EN/RBIAS (Pin 4), VCC (Pin 5), and RFOUT (Pin 7). However, only MAX2615ETA/V+T uses Pin 4 as RBIAS; others use it as enable/disable.

What is the maximum input power rating for MAX2615ETA/V+T?

The MAX2615ETA/V+T has a maximum input power rating of +20dBm, enabled by its rugged bipolar Darlington architecture. This specification is absolute and applies across the full 40MHz–4000MHz frequency range, allowing the device to tolerate intermittent RF surges common in shared-antenna FDD/TDD systems without degradation or latch-up.