Analog Devices Inc./Maxim Integrated MAX4528ESA+T

Overview

The MAX4528ESA+T from Maxim Integrated is a low-voltage, CMOS phase-reversal analog switch configured as a 4-terminal bridge (A/B inputs, X/Y outputs) with single-logic-control (IN) for polarity inversion. It operates from +2.7V to +12V single supply or ±2.7V to ±6V dual supplies, delivers ≤110Ω on-resistance (±5V), ≤5pC charge injection, and <100ns transition time - enabling precision chopper-stabilized amplifiers and balanced modulators.

For engineers reviewing the MAX4528ESA+T datasheet, MAX4528ESA+T pinout, MAX4528ESA+T application, or MAX4528ESA+T equivalent, this page provides verified pin functions, rail-to-rail signal handling (V− to V+), TTL/CMOS-compatible logic thresholds (0.8V–2.4V), leakage current (0.5nA @ +25°C), and package-specific thermal derating data for SO-8 design integration.

Technical Context

The MAX4528ESA+T implements a fully integrated bridge topology with two normally open and two normally closed CMOS switches, driven by out-of-phase gate signals derived from V+ and V− to maintain rail-to-rail conduction. Its internal logic-level translator isolates digital control (IN) from analog paths, with ESD diodes connected only to V+ and V− - not GND - enabling safe operation with bipolar supplies down to −6V.

DC and AC symmetry are optimized for ±5V operation, where on-resistance matching is ≤7Ω and flatness is ≤15Ω across ±3V input range. Charge injection matching between X and Y paths is ≤1pC, critical for zero-error chopper circuits; leakage current remains ≤20nA at +85°C due to matched reverse-biased ESD diode architecture.

Key Specifications

Pinout & Package

MAX4528ESA+T is housed in an 8-pin SO (Small Outline) package with standard 1.27mm pitch, JEDEC MS-012AC compliant, and thermal derating of 5.88mW/°C above +70°C (max 471mW at TA = +70°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4528ESA+T, MAX4526ESA+ omits bridge architecture entirely, while ADG1419BRMZ trades precision phase-reversal performance for extended voltage capability - making MAX4528ESA+T uniquely suited for low-drift, low-frequency chopper and modulator applications requiring ≤5pC charge injection and ≤7Ω R_ON matching.

Availability

MAX4528ESA+T 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 MAX4528ESA+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 power-management ICs for industrial, medical, and communications applications.

The MAX4528ESA+T belongs to Maxim's low-voltage analog switch product line, engineered specifically for phase-reversal, chopper stabilization, and balanced modulation - prioritizing low charge injection, tight R_ON matching, and rail-to-rail operation over general-purpose switching speed.

FAQ

What is the maximum operating temperature range for the MAX4528ESA+T?

The MAX4528ESA+T is rated for operation from −40°C to +85°C, as confirmed in the Ordering Information table where "ESA" suffix denotes the extended temperature grade. This range supports deployment in industrial control systems, automotive under-hood modules, and outdoor instrumentation where ambient thermal stress exceeds commercial-grade limits. The MAX4528ESA+T maintains specified leakage current (≤20nA) and on-resistance flatness within this full range.

Can the MAX4528ESA+T operate from a single 3.3V supply?

Yes, the MAX4528ESA+T supports +2.7V to +12V single-supply operation with V− tied to GND. At +3.3V, on-resistance rises to 250–900Ω (typ/max), transition time extends to 150–400ns, and logic thresholds shift to VINH = 0.9–2.4V and VINL = 0.6–0.9V - all verified in the +3V Single Supply Electrical Characteristics table. System designers must verify signal integrity under these conditions for their specific load and bandwidth requirements.

How does the MAX4528ESA+T achieve rail-to-rail analog signal handling?

The MAX4528ESA+T achieves rail-to-rail operation through complementary N-channel and P-channel MOSFETs in each switch path, with gates driven by out-of-phase signals referenced to V+ and V−. This architecture eliminates body-diode conduction limitations, allowing analog signals to swing continuously from V− to V+ without clipping. The internal logic-level translator ensures proper gate biasing regardless of whether V− is grounded or negative, preserving conduction across the full supply range.

Is the MAX4528ESA+T pin-compatible with other variants like MAX4528CSA or MAX4528EUA?

Yes, all MAX4528 variants - including MAX4528ESA+T (SO-8, −40°C to +85°C), MAX4528CSA (SO-8, 0°C to +70°C), and MAX4528EUA (µMAX-8, −40°C to +85°C) - share identical 8-pin functional pinouts and electrical specifications. The MAX4528ESA+T differs only in temperature rating and package type (SO vs. µMAX); no PCB redesign is needed when upgrading from CSA to ESA within the same SO-8 footprint.

What is the purpose of the GND pin on the MAX4528ESA+T if analog signals are rail-to-rail?

The GND pin on the MAX4528ESA+T serves exclusively as the reference for internal digital logic and the logic-level translator - it is not connected to any analog signal path. Analog terminals (A, B, X, Y) float between V+ and V− with no GND reference, enabling true differential operation. This separation prevents ground-loop coupling into sensitive analog nodes and allows the device to function correctly in split-supply, isolated, or floating-system architectures.