Analog Devices Inc./Maxim Integrated MAX4353ESA+

Overview

MAX4353ESA+ from Maxim Integrated is a dual, high-speed, rail-to-rail output operational amplifier compensated for minimum closed-loop gain of +5V/V, delivering 80MHz -3dB bandwidth, 240V/µs slew rate, and 620µA per amplifier supply current at +5V. It operates from +2.7V to +5.25V single supply and is used in battery-powered RF front-ends and baseband signal conditioning stages.

For engineers reviewing the MAX4353ESA+ datasheet, MAX4353ESA+ pinout, MAX4353ESA+ application, or MAX4353ESA+ equivalent, key selection criteria include its +5V/V minimum stable gain requirement, SO-8 package thermal performance (471mW at +70°C), rail-to-rail output swing (≤350mV from rails at 1kΩ), and crosstalk isolation (-74dB at 1MHz) in dual-channel operation.

Technical Context

The MAX4353ESA+ employs voltage-feedback architecture with internal compensation optimized for ≥+5V/V noninverting or inverting configurations. Its bipolar process enables fast large-signal response (8ns rise/fall time, 50ns 0.1% settling) while maintaining low distortion (−74dBc SFDR at 1MHz, V_OUT=2V_p-p, V_CC=5V).

Input common-mode range extends from (VEE − 0.1V) to (V_CC − 1.5V), supporting ground-sensing operation; output drives ±15mA into 20Ω loads and maintains ≤0.8Ω open-loop impedance at 1MHz. Stability is ensured with resistive feedback networks-no external compensation required for G≥5.

Key Specifications

Pinout & Package

MAX4353ESA+ is housed in an 8-pin SO (Small Outline) package with 150-mil body width, JEDEC MS-012 compliant, rated for 471mW power dissipation at +70°C ambient (derated 5.9mW/°C above).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual high-speed op amp applications.

Compared with MAX4453ESA+, MAX4353ESA+ trades unity-gain stability for higher slew rate and lower power at fixed G≥5-making it more efficient in gain-of-5+ signal chains. Against AD8052ARZ, MAX4353ESA+ delivers 5.5× lower supply current at 73% of the slew rate, prioritizing energy efficiency over extreme transient response.

Availability

MAX4353ESA+ is available at Aetrix Electronics and suitable for battery-powered instrumentation, cellular baseband signal chains, and keyless entry systems requiring stable component supply across industrial temperature range (−40°C to +85°C) and long-term production continuity.

Supply support for MAX4353ESA+ 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 power management ICs for industrial, communications, and consumer applications.

The MAX435x family targets portable, low-voltage systems needing high bandwidth with ultra-low quiescent current-specifically engineered for RF front-ends, ADC/DAC interfaces, and battery-constrained signal conditioning.

FAQ

What is the minimum stable gain configuration for the MAX4353ESA+?

The MAX4353ESA+ is internally compensated for minimum closed-loop gain of +5V/V. It is not unity-gain stable; attempting G=1 or G=2 will cause peaking or oscillation. For unity-gain applications, use the pin-compatible MAX4453ESA+ instead. Gain-setting resistors must be selected to ensure closed-loop gain ≥5 in both inverting and noninverting configurations to maintain phase margin and stability across temperature and supply voltage.

Does the MAX4353ESA+ support true single-supply operation from 3.3V?

Yes, the MAX4353ESA+ operates from +2.7V to +5.25V single supply. At V_CC = 3.3V, it delivers rail-to-rail output swing within 350mV of each rail (V_OH ≤ 2.95V, V_OL ≥ 0.35V at 1kΩ), and maintains 620µA per amplifier supply current. Input common-mode range includes ground (down to VEE − 0.1V), enabling DC-coupled sensor interfaces without level-shifting circuitry.

What is the maximum capacitive load the MAX4353ESA+ can drive without external isolation?

The MAX4353ESA+ is characterized to drive up to 22pF capacitive load directly without oscillation or excessive ringing. This covers typical ADC input capacitance (e.g., 10–15pF) and PCB trace capacitance. For loads >22pF, an isolation resistor (R_ISO) between output and load is required-values range from 10Ω to 30Ω depending on C_L, per Figure 2 in the datasheet. Driving >50pF without R_ISO risks instability.

How does crosstalk performance impact dual-channel use in I/Q signal paths?

The MAX4353ESA+ specifies −74dB crosstalk at 1MHz between channels, measured with 100mV_p-p output. In I/Q baseband applications, this ensures <0.2% amplitude coupling from one channel to the other-preserving quadrature accuracy and minimizing image rejection degradation. Performance holds across frequency up to 10MHz, making it suitable for wideband LTE and Wi-Fi 2.4GHz direct-conversion receivers.

Is thermal derating required for continuous operation at +85°C ambient?

Yes. The SO-8 package has a thermal derating factor of 5.9mW/°C above +70°C. At +85°C ambient, maximum allowable power dissipation drops to 471mW − (15°C × 5.9mW/°C) = 382.5mW. With 1.24mA total supply current at +5V (2 × 620µA), power dissipation is ~6.2mW-well below the derated limit. No thermal design changes are needed for full-spec operation across −40°C to +85°C.