Analog Devices Inc./Maxim Integrated IH5051CWE

Overview

IH5051CWE from Maxim Integrated is a high-speed, low-power, CMOS analog switch configured as a single-pole double-throw (SPDT) device with 100 Ω on-resistance, ±15 V analog signal range, and 10 ns switching time. It operates from a dual ±15 V supply and is used in precision instrumentation multiplexing and automatic test equipment signal routing.

For engineers reviewing the IH5051CWE datasheet, IH5051CWE pinout, IH5051CWE application, or IH5051CWE equivalent, key selection considerations include on-resistance matching, break-before-make timing, leakage current at elevated temperature, and rail-to-rail analog signal handling capability under dual-supply operation.

Technical Context

The IH5051CWE employs a complementary MOSFET architecture with matched P- and N-channel devices to achieve low on-resistance and symmetrical analog conduction. Its control logic accepts TTL/CMOS-compatible input levels and features internal level-shifting for proper gate drive across the full ±15 V analog range.

It includes built-in ESD protection per MIL-STD-883 Class 3B (±2 kV HBM), supports operation from –40°C to +85°C, and maintains <1 nA off-leakage at 25°C with ±15 V supplies - critical for high-impedance sensor interface applications.

Key Specifications

Pinout & Package

Package: 16-pin SOIC wide-body (SOIC-W), 7.5 mm body width, 1.27 mm pitch, JEDEC MS-013AC compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG1419BRUZ and TS5A23157DGSR, the IH5051CWE uniquely supports full ±15 V analog operation with MIL-qualified ESD protection and sub-nA leakage - making it the only viable option for high-accuracy, dual-supply industrial multiplexing where signal integrity and ruggedness are mandatory.

Availability

IH5051CWE is available at Aetrix Electronics and suitable for automated test equipment, precision data acquisition systems, and industrial process control applications requiring stable component supply and long-term manufacturability.

Supply support for IH5051CWE 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 IH5051CWE belongs to Maxim's high-voltage analog switch product line, engineered specifically for rail-to-rail signal routing in test and measurement, process control, and instrumentation systems operating from ±15 V supplies.

FAQ

What is the maximum analog signal voltage range supported by the IH5051CWE?

The IH5051CWE supports an analog signal range of ±15 V, meaning it can pass signals from –15 V to +15 V without clipping or distortion when operated with corresponding ±15 V supply rails. This rail-to-rail capability is confirmed in the official Maxim datasheet and enables direct interfacing with legacy op-amps and DACs using standard dual supplies. The IH5051CWE maintains specified on-resistance and leakage performance across this full range.

Does the IH5051CWE require external level-shifting for TTL/CMOS control inputs?

No, the IH5051CWE includes internal level-shifting circuitry that translates standard 0 V/5 V TTL or CMOS logic inputs into appropriate gate drive voltages for its high-voltage P- and N-channel MOSFETs. This allows direct connection to microcontrollers or FPGAs without external translators. The IH5051CWE's control input (Pin 9) is fully compatible with 3.3 V or 5 V logic families while maintaining correct switching behavior across the full ±15 V analog range.

What is the guaranteed break-before-make interval for the IH5051CWE?

The IH5051CWE guarantees a minimum 5 ns break interval between turn-off of one path and turn-on of the other, ensuring no momentary shorting occurs during state transitions. This timing is characterized over temperature and supply voltage and is critical for preventing crosstalk or damage in multiplexer trees. The IH5051CWE's internal timing control ensures consistent break-before-make behavior regardless of input slew rate or load conditions.

Can the IH5051CWE operate from a single supply, such as +12 V only?

No, the IH5051CWE requires dual supplies: a positive rail (V+) and a negative rail (V–). Its absolute maximum ratings specify V+ to V– ≤ 36 V, with recommended operation at ±15 V. Operation from a single +12 V supply is not supported - the V– pin must be connected to a negative potential (e.g., –12 V or –15 V) to bias the internal P-channel devices correctly. Using only a positive supply will result in improper switching or permanent damage to the IH5051CWE.

Is the IH5051CWE pin-compatible with any industry-standard analog switch replacements?

No documented pin-compatible replacement exists for the IH5051CWE in the same 16-pin SOIC-W package with identical pin functions and ±15 V capability. While ADG1419BRUZ and TS5A23157DGSR serve similar analog switching roles, neither matches the IH5051CWE's pinout, supply requirements, or voltage range. Any replacement would require PCB layout modification and signal path revalidation. The IH5051CWE remains the only solution meeting its exact specification set in this package form factor.