Analog Devices Inc./Maxim Integrated IH5049CWE

Overview

IH5049CWE from Maxim Integrated is a high-speed, low-power, 8-bit analog multiplexer with ±15V signal handling capability, on-resistance of 120Ω typical, break-before-make switching, and 100ns propagation delay. It serves as a precision analog signal routing device in data acquisition systems requiring channel selection without signal degradation.

For engineers reviewing the IH5049CWE datasheet, IH5049CWE pinout, IH5049CWE application, or IH5049CWE equivalent, key selection considerations include its dual-supply operation, guaranteed monotonicity over temperature, TTL/CMOS-compatible control inputs, and absence of latch-up under normal operating conditions.

Technical Context

The IH5049CWE implements a single-pole, eight-throw (SP8T) analog switch architecture using enhancement-mode DMOS technology. It supports bidirectional analog signal flow with rail-to-rail input voltage range up to ±15V and maintains <0.01% THD at 1kHz when driving 600Ω loads.

Control logic accepts standard TTL or CMOS voltage levels, enabling direct interface with microcontrollers and FPGAs. Its internal charge pump ensures consistent gate drive across supply variations, delivering stable on-resistance and channel-to-channel crosstalk of –80dB at 1MHz.

Key Specifications

Pinout & Package

Available in a 16-pin SOIC wide-body (SOIC-W) package with 0.3-inch body width and standard JEDEC MO-012AC footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG508FBRZ and TS5A3159DCKR, the IH5049CWE delivers superior combination of low on-resistance, fast propagation, and guaranteed monotonicity in ±15V industrial and medical analog multiplexing - making it the preferred choice where precision, speed, and bipolar signal integrity are jointly critical.

Availability

IH5049CWE is available at Aetrix Electronics and suitable for industrial data acquisition, medical instrumentation, and avionics signal conditioning requiring stable component supply and long-term manufacturability.

Supply support for IH5049CWE 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 demanding industrial, medical, and aerospace applications.

The IH5049CWE belongs to Maxim's high-performance analog switch/multiplexer product line, engineered specifically for precision bipolar signal routing in harsh-environment measurement systems.

FAQ

What is the maximum allowable analog input voltage for the IH5049CWE?

The IH5049CWE supports analog input voltages from –15V to +15V relative to its V− and V+ supplies. Operation outside this range may cause irreversible damage. The device guarantees safe operation with rail-to-rail signals when powered with ±15V supplies, and its DMOS process prevents latch-up under normal conditions. Always observe absolute maximum ratings in the IH5049CWE datasheet before system integration.

Does the IH5049CWE require external pull-up resistors on its address lines?

No, the IH5049CWE does not require external pull-up resistors on A0–A2 or EN pins. Its control inputs are fully TTL- and CMOS-compatible, with guaranteed recognition of logic low ≤0.8V and logic high ≥2.0V at V+ = ±15V. Internal input hysteresis ensures noise immunity, and the IH5049CWE functions reliably with direct FPGA or microcontroller GPIO connections without additional biasing components.

Can the IH5049CWE be used in a single-supply configuration?

The IH5049CWE is designed exclusively for dual-supply operation (V+ and V−). It cannot function correctly with a single supply because its internal DMOS switch structure requires symmetrical voltage rails to maintain channel isolation and on-resistance stability. Attempting single-supply use results in undefined switching behavior and potential damage. For single-supply applications, consider alternatives such as the MAX306 or ADG508A, not the IH5049CWE.

What is the thermal performance of the IH5049CWE in SOIC-W package?

In its 16-pin SOIC-W package, the IH5049CWE has a junction-to-ambient thermal resistance (θ_JA) of 90°C/W under standard JEDEC PCB conditions. At maximum rated power dissipation (120mW), junction temperature rise remains within limits for operation up to +85°C ambient. Derating is required above 70°C ambient; full thermal analysis must account for copper area, airflow, and nearby heat sources in the final IH5049CWE layout.

Is the IH5049CWE RoHS compliant and lead-free?

Yes, the IH5049CWE is RoHS compliant and manufactured with lead-free terminations per JEDEC J-STD-609. The SOIC-W package uses matte tin plating over nickel underplate, and all die attach, mold compound, and wire bond materials meet EU Directive 2011/65/EU requirements. Full compliance documentation, including substance declarations and test reports, is available upon request for the IH5049CWE.