Analog Devices Inc./Maxim Integrated MAX4527CPA

Overview

MAX4527CPA from Maxim Integrated is a low-power, phase-reversal analog switch IC configured as a bridge of two normally open and two normally closed CMOS switches. It operates from +4.5V to +36V single supply or ±4.5V to ±18V dual supplies, delivers 175Ω max on-resistance with 8Ω matching, handles rail-to-rail analog signals (V− to V+), and draws only 1µA supply current at +25°C - ideal for chopper-stabilized amplifiers requiring precision DC reversal and minimal power.

For engineers reviewing the MAX4527CPA datasheet, MAX4527CPA pinout, MAX4527CPA application, or MAX4527CPA equivalent, key selection criteria include guaranteed break-before-make timing (1–5ns), 10pC max charge injection, rail-to-rail signal handling, TTL/CMOS-compatible logic thresholds (0.8V–2.4V), and compatibility with ±15V or single-supply operation in self-calibrating and modulator circuits.

Technical Context

The MAX4527CPA implements a fully integrated bridge topology where analog inputs A and B are routed to outputs X and Y under control of a single logic-level IN pin, enabling true polarity inversion without external components. Its internal logic-level translator drives N- and P-channel MOSFET gates out-of-phase using V+ and V−, ensuring symmetrical conduction across the full analog range.

Unlike discrete switch configurations, the MAX4527CPA optimizes both DC and AC balance via matched on-resistance flatness (12Ω typ), low leakage (0.5nA at +25°C), and tightly controlled charge injection matching (2pC max), making it suitable for precision zero-drift amplifier feedback paths and balanced modulators up to 100kHz.

Key Specifications

Pinout & Package

MAX4527CPA is housed in an 8-pin plastic DIP package (0.300″ width), with through-hole mounting and industry-standard pin spacing. Pin 1 is A (analog input), Pin 2 is B (analog input), Pin 3 is GND (digital ground reference), Pin 4 is IN (logic control), Pin 5 is V− (negative analog supply), Pin 6 is Y (output), Pin 7 is X (output), and Pin 8 is V+ (positive analog/digital supply).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4526CPA and ADG1419BRZ, the MAX4527CPA uniquely integrates a matched bridge topology with guaranteed break-before-make, sub-µA supply current, and factory-optimized DC/AC symmetry - delivering plug-in phase reversal without external components or layout trade-offs.

Availability

MAX4527CPA is available at Aetrix Electronics and suitable for chopper-stabilized amplifiers, balanced modulators/demodulators, and data acquisition systems requiring stable component supply, long-term manufacturability, and consistent parametric performance across temperature.

Supply support for MAX4527CPA 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 test equipment applications.

The MAX4526/MAX4527 product line was engineered specifically for DC and low-frequency phase-reversal tasks - including chopper amplifiers, self-calibrating systems, and balanced modulation - with emphasis on symmetry, low leakage, and rail-to-rail operation.

FAQ

What is the operating temperature range for MAX4527CPA?

The MAX4527CPA is specified for operation from 0°C to +70°C. This commercial-grade temperature range aligns with its "C" grade suffix and makes it suitable for laboratory instruments, industrial controllers, and non-automotive embedded systems where ambient conditions remain within standard room-temperature envelopes. The device's leakage and on-resistance remain tightly bounded across this span, as confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables.

Can MAX4527CPA operate from a single supply?

Yes, MAX4527CPA supports single-supply operation from +4.5V to +36V by connecting V− to GND. In this configuration, analog signals swing from 0V to V+, and all specifications-including on-resistance (175Ω max), leakage (0.5nA), and charge injection (10pC)-remain valid. The internal logic thresholds (0.8V/2.4V) and break-before-make timing (1–5ns) are preserved, enabling seamless integration into single-rail systems without level shifters.

How does MAX4527CPA achieve phase reversal?

MAX4527CPA achieves phase reversal via an integrated bridge of four CMOS switches: inputs A and B are cross-connected to outputs X and Y based on the logic state of the IN pin. When IN is LOW, A→Y and B→X; when IN is HIGH, A→X and B→Y - effectively swapping the signal polarity between the two output terminals. This architecture eliminates external wiring, maintains matched RON (<8Ω difference), and guarantees break-before-make to prevent signal shorting.

Is MAX4527CPA pin-compatible with MAX4526CPA?

Yes, MAX4527CPA is pin-compatible with MAX4526CPA in the same package (e.g., 8-pin DIP). Both share identical pinout, footprint, supply requirements, and functional block diagram. The primary distinction lies in internal driver optimization: MAX4526CPA prioritizes speed (95ns transition), while MAX4527CPA prioritizes low power (1µA I_Q). No PCB changes are required when substituting between them for applications where speed or power is the dominant constraint.

What is the maximum analog signal voltage range supported by MAX4527CPA?

MAX4527CPA supports rail-to-rail analog signals ranging from V− to V+. With ±15V dual supplies, this spans −15V to +15V; with +12V single supply (V− = GND), it spans 0V to +12V. The Absolute Maximum Ratings confirm safe operation up to V+ = +44V and V− = −25V, but functional analog range remains strictly bounded by the applied supply rails - not by absolute pin voltage limits alone.