Analog Devices Inc./Maxim Integrated IH5045CPE

Overview

IH5045CPE from Maxim Integrated is a high-speed, monolithic CMOS analog switch configured as a dual SPDT (single-pole double-throw) switch with 100 Ω on-resistance, 15 ns switching time, and ±15 V analog signal range. It operates from ±5 V to ±20 V supplies and is used in precision instrumentation multiplexing and automatic test equipment signal routing.

For engineers reviewing the IH5045CPE datasheet, IH5045CPE pinout, IH5045CPE application, or IH5045CPE equivalent, key selection criteria include on-resistance matching (max 5 Ω between channels), break-before-make timing, rail-to-rail analog swing capability, and TTL/CMOS-compatible control inputs.

Technical Context

The IH5045CPE integrates two independent SPDT switches on a single die using enhanced CMOS process technology. Each switch features matched on-resistance (<5 Ω channel-to-channel mismatch), low charge injection (5 pC), and guaranteed break-before-make operation to prevent signal shorting during transition.

It supports dual-supply operation from ±5 V to ±20 V, enabling full rail-to-rail analog signal handling up to ±15 V. Control inputs accept TTL- or CMOS-level logic and are 5 V tolerant when powered from higher supply rails.

Key Specifications

Pinout & Package

Package: 16-pin plastic DIP (dual in-line package), 0.3-inch body width, through-hole mounting.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG452BRZ and DG408DJ, the IH5045CPE uniquely delivers matched dual SPDT topology with ±15 V rail-to-rail analog handling and guaranteed break-before-make timing-critical for precision instrumentation where signal integrity across two independent paths cannot be compromised.

Availability

IH5045CPE 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 obsolescence management.

Supply support for IH5045CPE 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 IH5045CPE belongs to Maxim's high-performance analog switch family, engineered specifically for applications demanding low on-resistance mismatch, fast switching, and robust rail-to-rail analog signal handling in harsh environments.

FAQ

What is the maximum analog signal voltage range supported by the IH5045CPE?

The IH5045CPE supports an analog signal range of ±15 V when operated with ±15 V supplies. This rail-to-rail capability allows direct interface with industrial sensors and DACs without external level-shifting circuitry. The device remains functional with supply voltages ranging from ±5 V to ±20 V, but the usable analog swing is bounded by the applied V+ and V− rails. IH5045CPE maintains specified on-resistance and switching performance across this full operating range.

Does the IH5045CPE guarantee break-before-make operation?

Yes, the IH5045CPE guarantees break-before-make timing with a minimum 10 ns dead time between disconnecting one throw and connecting the other. This prevents momentary shorting of analog signal paths during switching transitions-a critical requirement in precision multiplexing and calibration sequencing. The internal control logic enforces this behavior regardless of input slew rate or supply voltage within specification. IH5045CPE's guaranteed timing eliminates risk of signal corruption in sensitive measurement setups.

What is the typical charge injection value for the IH5045CPE, and why does it matter?

The IH5045CPE specifies a maximum charge injection of 5 pC per switch transition. This low value minimizes voltage glitches at high-impedance nodes-such as those found in sample-and-hold circuits, integrators, or sensor front-ends-where injected charge would otherwise cause settling errors or baseline shifts. In precision applications like 16-bit data acquisition, IH5045CPE's 5 pC rating directly supports sub-LSB accuracy after switching. The parameter is measured under standard ±15 V supply conditions.

Can the IH5045CPE be controlled with 3.3 V logic levels?

Yes, the IH5045CPE control inputs are TTL- and CMOS-compatible and tolerate 5 V logic even when powered from higher supply rails. When operated with ±15 V supplies, a 3.3 V logic high meets the minimum VIH threshold (typically 2.0 V) and ensures reliable switching. No level-shifter is required. However, the IH5045CPE's internal logic thresholds are supply-dependent, and its guaranteed performance-including noise margin and propagation delay-is validated for 5 V logic; IH5045CPE remains fully functional with 3.3 V control in most system implementations.

Is the IH5045CPE pin-compatible with any industry-standard replacements?

No, the IH5045CPE has a proprietary 16-pin DIP pinout optimized for dual SPDT routing and does not share pin compatibility with common alternatives such as the DG408 or ADG452. Its pin assignments-including dedicated common terminals, separated control inputs, and NC pins-reflect its specific dual-switch architecture. While functionally comparable parts exist, IH5045CPE requires custom PCB layout. Migration to another part necessitates schematic and layout revision, as IH5045CPE's pin mapping is not replicated in standard industry packages.