Analog Devices Inc./Maxim Integrated MAX4527EPA

Overview

MAX4527EPA from Maxim Integrated is a phase-reversal analog switch IC optimized for low-power DC and low-frequency signal inversion in chopper-stabilized amplifiers. It operates from ±4.5V to ±18V dual supplies or +4.5V to +36V single supply, features 175Ω max on-resistance, <100ns transition time with ±15V supplies, and rail-to-rail analog signal handling up to ±15V.

For engineers reviewing the MAX4527EPA datasheet, MAX4527EPA pinout, MAX4527EPA application, or MAX4527EPA equivalent, key selection criteria include guaranteed break-before-make timing (1–5ns), 1µA typical supply current, 0.5nA leakage at +25°C, 10pC max charge injection, and compatibility with TTL/CMOS logic thresholds (0.8V–2.4V).

Technical Context

The MAX4527EPA implements a bridge-configured phase-reversal topology with two normally open and two normally closed CMOS switches. Its internal logic-level translator drives N- and P-channel MOSFETs out-of-phase to V+ and V−, enabling true bidirectional analog signal routing without ground reference.

It delivers matched on-resistance (≤8Ω difference between A-X/A-Y/B-X/B-Y paths) and low charge-injection mismatch (≤2pC), critical for precision chopper and self-calibrating circuits. The device guarantees break-before-make switching and supports bipolar operation down to −40°C with full characterization at ±15V supplies.

Key Specifications

Pinout & Package

MAX4527EPA uses an 8-pin plastic DIP package (0.300″ width), with lead finish SnPb, RoHS-compliant option available per ordering code suffix.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4527EPA, MAX4527ESA offers identical functionality in a compact SO package ideal for density-sensitive designs, while ADG1419BRUZ provides higher bandwidth and lower on-resistance but lacks the integrated bridge architecture and break-before-make guarantee essential for chopper and modulator stability.

Availability

MAX4527EPA is available at Aetrix Electronics and suitable for chopper-stabilized amplifiers, balanced modulators/demodulators, and data acquisition systems requiring stable component supply across extended industrial temperature ranges (−40°C to +85°C).

Supply support for MAX4527EPA 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 MAX4526/MAX4527 product line was engineered specifically for DC- and low-frequency phase-reversal tasks-chopper amplifiers, self-calibrating circuits, and balanced modulation-where matched on-resistance, low charge injection, and guaranteed switching sequence are mandatory.

FAQ

What is the operating temperature range of the MAX4527EPA?

The MAX4527EPA is rated for −40°C to +85°C, making it suitable for extended industrial environments. This range is confirmed in the Ordering Information table and Absolute Maximum Ratings section of the datasheet, where "E" grade denotes the extended temperature variant. All electrical specifications-including leakage current, on-resistance, and transition time-are guaranteed across this full range.

Does the MAX4527EPA support single-supply operation?

Yes, the MAX4527EPA supports single-supply operation from +4.5V to +36V by connecting the V− pin to GND. The device maintains rail-to-rail analog signal handling (0V to V+) and retains all key specs including 175Ω max on-resistance and 10pC max charge injection. Power-supply considerations in the datasheet explicitly confirm safe single-supply use with appropriate bypassing.

How does the MAX4527EPA differ from the MAX4526EPA?

The MAX4527EPA and MAX4526EPA share identical analog switch characteristics (on-resistance, leakage, charge injection, isolation), but differ in logic driver speed and supply current. The MAX4527EPA draws only 1µA typical supply current and has slower switching (transition time <100ns), whereas the MAX4526EPA consumes ~1.5mA and achieves faster transitions (<250ns), optimized for higher-frequency chopper applications.

Is the MAX4527EPA pin-compatible with other variants in the MAX4527 family?

Yes, all MAX4527 variants-including CPA, CSA, CUA, EPA, ESA, and EUA-share identical 8-pin pinouts and electrical behavior. The only differences are temperature grade (C = 0°C to +70°C, E = −40°C to +85°C) and package type (DIP, SO, µMAX). The MAX4527EPA's 8-pin plastic DIP footprint matches MAX4527CPA exactly, enabling drop-in replacement in existing through-hole designs.

What is the significance of guaranteed break-before-make in the MAX4527EPA?

Guaranteed break-before-make (1–5ns minimum delay) ensures that the X and Y output paths never conduct simultaneously during switching. This prevents momentary short-circuits between complementary signal paths-a critical requirement in chopper amplifiers and modulators where even nanosecond overlap causes offset spikes, carrier feedthrough, or latch-up risk. The feature is explicitly tested and specified in the Switch Dynamic Characteristics table.