Analog Devices Inc./Maxim Integrated MAX4528EUA+

Overview

MAX4528EUA+ from Maxim Integrated is a low-voltage, phase-reversal analog switch IC configured as a bridge-switch array for polarity inversion in precision DC/low-frequency signal paths. It operates from ±2.7V to ±6V dual supplies or +2.7V to +12V single supply, delivers 110Ω max on-resistance (±5V), 5pC max charge injection, <100ns transition time, and supports rail-to-rail analog signals from V− to V+. It is used in chopper-stabilized amplifiers requiring precise phase reversal without signal inversion artifacts.

For engineers reviewing the MAX4528EUA+ datasheet, MAX4528EUA+ pinout, MAX4528EUA+ application, or MAX4528EUA+ equivalent, key selection criteria include verified on-resistance matching (≤7Ω), leakage current at temperature (20nA @ +85°C), TTL/CMOS-compatible logic thresholds (0.8V–2.4V), ESD robustness (>2kV), and µMAX-8 package compatibility with high-density PCB layouts.

Technical Context

The MAX4528EUA+ implements a fully integrated bridge configuration of four CMOS switches (two NO, two NC) with out-of-phase gate drive to enable true analog phase reversal - not simple signal routing. Its internal logic-level translator isolates digital control (IN) from analog supplies (V+, V−), enabling safe operation with bipolar supplies where IN may swing to V−.

All analog terminals (A, B, X, Y) are bidirectional and electrically identical; optimal AC symmetry is achieved when A/B serve as inputs and X/Y as outputs. The device exhibits matched on-resistance (ΔRON ≤ 7Ω) and flat on-resistance over signal range (R_FLAT(ON) ≤ 15Ω), critical for chopper amplifier offset cancellation and balanced modulator carrier suppression.

Key Specifications

Pinout & Package

MAX4528EUA+ uses an 8-pin µMAX package (3mm × 3mm, 0.5mm pitch), thermally enhanced with exposed pad connected to GND internally. Pin 3 (GND) serves as digital ground reference; analog signals are fully floating between V+ and V− with no ground reference required.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar phase-reversal analog switch applications.

Compared with ADG1419BRMZ and TS5A3159DCKR, the MAX4528EUA+ uniquely integrates a matched bridge topology with bipolar supply support, enabling true phase reversal without external components - critical for chopper amplifier offset cancellation and carrier-suppressed modulation where symmetry, leakage, and charge injection are design-limiting factors.

Availability

MAX4528EUA+ is available at Aetrix Electronics and suitable for chopper-stabilized amplifiers, balanced modulators/demodulators, and precision data acquisition systems requiring stable component supply across industrial temperature ranges (-40°C to +85°C).

Supply support for MAX4528EUA+ 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, medical, and communications applications.

The MAX4528EUA+ belongs to Maxim's low-voltage analog switch family, engineered specifically for DC- and low-frequency phase-reversal tasks where matched on-resistance, ultra-low charge injection, and bipolar supply operation are essential.

FAQ

What is the operating temperature range of the MAX4528EUA+?

The MAX4528EUA+ is rated for operation from −40°C to +85°C. This extended industrial temperature range is confirmed in the Ordering Information table and Absolute Maximum Ratings section of the datasheet, making it suitable for deployment in harsh environments such as factory automation and outdoor instrumentation where thermal stability is critical. The MAX4528EUA+ maintains specified leakage (20nA max), on-resistance (110Ω max), and transition time (<100ns) across this full range.

Does the MAX4528EUA+ support single-supply operation?

Yes, the MAX4528EUA+ supports single-supply operation from +2.7V to +12V with V− tied to GND. Electrical characteristics for +3V, +5V, and +12V single-supply configurations are explicitly provided in the datasheet, including on-resistance (up to 900Ω at +3V), transition time (up to 400ns), and logic thresholds (VINL = 0.6V min at +3V). All analog terminals remain rail-to-rail relative to V+ and GND.

How is phase reversal implemented in the MAX4528EUA+?

The MAX4528EUA+ implements phase reversal via an integrated bridge of four matched CMOS switches: when IN is LOW, A connects to Y and B connects to X; when IN is HIGH, A connects to X and B connects to Y. This cross-coupled configuration physically swaps signal paths to invert polarity - unlike external op-amp inversion, it preserves bandwidth, introduces no additional noise, and avoids ground-referenced limitations. The truth table and functional diagram confirm this behavior.

What is the maximum allowable supply voltage difference (V+ to V−) for the MAX4528EUA+?

The absolute maximum rating for V+ to V− is 13V. While the recommended operating range is ±2.7V to ±6V (i.e., 5.4V to 12V differential), the device tolerates up to 13V differential without damage - for example, V+ = +12V and V− = −1V. This margin accommodates transient conditions and asymmetric supplies, but sustained operation above ±6V is not characterized and may degrade R_ON matching and leakage performance.

Is the MAX4528EUA+ pin-compatible with other variants in the MAX4528 family?

Yes, the MAX4528EUA+ shares identical pinout and footprint with MAX4528CPA, MAX4528CSA, and MAX4528CUA - all are 8-pin µMAX, SO, or DIP packages with identical pin assignments (A, B, GND, IN, V−, Y, X, V+). The "E" grade denotes −40°C to +85°C operation, while "C" grade is 0°C to +70°C; electrical specifications are otherwise identical, enabling drop-in replacement in upgraded thermal environments.