Analog Devices Inc./Maxim Integrated MAX4528CPA

Overview

MAX4528CPA from Maxim Integrated is a low-voltage, phase-reversal analog switch configured as a 4-terminal bridge (A/B inputs, X/Y outputs) with TTL/CMOS-compatible logic control. It operates from +2.7V to +12V single supply or ±2.7V to ±6V dual supplies, delivers ≤110Ω on-resistance, ≤5pC charge injection, and <100ns transition time under ±5V supplies - enabling precision chopper-stabilized amplifier designs.

For engineers reviewing the MAX4528CPA datasheet, MAX4528CPA pinout, MAX4528CPA application, or MAX4528CPA equivalent, key selection criteria include rail-to-rail signal handling (V− to V+), matched on-resistance (≤7Ω), leakage current (0.5nA at +25°C), break-before-make timing (1–20ns), and compatibility with 8-pin DIP packaging for through-hole prototyping and industrial test equipment.

Technical Context

The MAX4528CPA implements a fully integrated bridge topology with two normally open and two normally closed CMOS switches, enabling true analog signal polarity inversion without external components. Its internal logic-level translator drives N- and P-channel MOSFET gates out-of-phase using V+ and V−, supporting bidirectional signal flow with no ground reference required for analog paths.

DC and AC symmetry are optimized for ±5V operation, with analog-signal range spanning V− to V+, on-resistance flatness ≤15Ω, and isolation >−68dB at 1MHz. ESD protection exceeds 2kV per Method 3015.7, and input thresholds (VINH = 1.6–2.4V, VINL = 0.8–1.6V) ensure robust TTL/CMOS interfacing across supply voltages.

Key Specifications

Pinout & Package

MAX4528CPA uses an 8-pin plastic DIP package (0.300" width), compatible with standard through-hole PCB assembly and socket-based evaluation. Pin functions are electrically symmetric: A/B serve as interchangeable analog inputs, X/Y as outputs, with IN controlling phase reversal state.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4528CPA, MAX4526CPA omits bridge architecture and phase reversal entirely, while ADG1419BRZ trades ultra-low charge injection for higher voltage tolerance - making MAX4528CPA uniquely suited for precision chopper amplifier feedback loops requiring both rail-to-rail swing and sub-5pC error.

Availability

MAX4528CPA is available at Aetrix Electronics and suitable for chopper-stabilized amplifiers, balanced modulators/demodulators, and data acquisition systems requiring stable component supply, long-term obsolescence management, and through-hole manufacturability.

Supply support for MAX4528CPA 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 fabless semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and computing applications.

The MAX4528CPA belongs to Maxim's precision analog switch product line, designed specifically for DC and low-frequency phase-reversal tasks including chopper stabilization, self-calibrating circuits, and balanced modulation - emphasizing low charge injection, matched RON, and rail-to-rail operation.

FAQ

What is the operating temperature range for MAX4528CPA?

The MAX4528CPA is rated for 0°C to +70°C ambient operation, as indicated by the 'C' suffix in its part number. This commercial-grade temperature range suits laboratory test equipment, data loggers, and non-automotive industrial control systems. The device's leakage current remains below 20nA at +85°C, but full parametric performance is only guaranteed within the 0°C to +70°C window specified for MAX4528CPA.

Can MAX4528CPA operate from a single +3.3V supply?

Yes, MAX4528CPA supports single-supply operation from +2.7V to +12V. At +3.3V, it maintains rail-to-rail analog signal handling (0V to +3.3V), though on-resistance rises to 250–900Ω and transition time extends to 150–400ns per datasheet specifications. Logic thresholds remain functional (VINL = 0.6–0.9V, VINH = 0.9–2.4V), ensuring compatibility with 3.3V microcontrollers driving the IN pin.

How does the MAX4528CPA achieve phase reversal without external components?

The MAX4528CPA integrates a four-switch bridge (A/B inputs, X/Y outputs) with internal logic that cross-connects paths based on the IN pin state: when IN is LOW, A→Y and B→X; when IN is HIGH, A→X and B→Y. This hardwired topology provides true analog polarity inversion in a single 8-pin package - eliminating discrete wiring, layout asymmetry, and matching errors inherent in external bridge implementations.

Is MAX4528CPA pin-compatible with other variants like MAX4528CSA or MAX4528CUA?

Yes, all MAX4528 variants - including MAX4528CPA (8-pin DIP), MAX4528CSA (8-pin SO), and MAX4528CUA (8-pin µMAX) - share identical pinout, electrical specifications, and functional behavior. The only differences are package type and thermal characteristics; PCB footprints and schematic symbols are interchangeable across these variants when mechanical constraints allow.

What is the maximum analog signal frequency supported by MAX4528CPA?

While the MAX4528CPA is optimized for DC and low-frequency phase reversal (e.g., chopper amplifiers at 1–10kHz), its −3dB bandwidth exceeds 10MHz under ±5V supplies, and practical carrier modulation is validated up to 100kHz in balanced modulator applications. Performance degrades above this due to capacitance mismatch and RON flatness - so for RF or high-speed digital switching, dedicated high-frequency analog switches should be considered instead of MAX4528CPA.