Renesas HI3-0508-5Z

Overview

HI3-0508-5Z from Intersil is a single 8-channel CMOS analog multiplexer with dielectric isolation, ±15V analog signal range, 180Ω typical on-resistance, 250ns access time, and TTL/CMOS-compatible digital inputs. It serves as a precision analog signal selector in data acquisition systems requiring low leakage and break-before-make switching.

For engineers reviewing the HI3-0508-5Z datasheet, HI3-0508-5Z pinout, HI3-0508-5Z application, or HI3-0508-5Z equivalent, key selection criteria include its 0°C to +75°C operating range, Pb-free 16-lead PDIP package, ±15V rail-to-rail analog handling, sub-1nA off-state leakage, and compatibility with legacy DG508A/DG508AA designs.

Technical Context

The HI3-0508-5Z integrates an 8-channel analog switch array, on-chip 3-bit address decoder, internal +5V logic threshold reference, and enable input for multi-device configurations. Its dielectric isolation (DI) process eliminates latch-up and reduces substrate leakage and parasitic capacitance versus junction-isolated CMOS.

Digital inputs feature 200Ω series resistors and diode clamps to V+ and V− for transient overvoltage protection. The device implements break-before-make switching and supports analog signals from −15V to +15V with guaranteed 2.4V logic high and 0.8V logic low thresholds.

Key Specifications

Pinout & Package

HI3-0508-5Z is housed in a 16-lead plastic dual-in-line package (PDIP), RoHS-compliant, with 0.300-inch body width and 0.100-inch lead pitch per JEDEC MS-001-BB (E16.3).

Key Features

Applications

Equivalent & Alternatives

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

Compared with DG508A and ADG508F, HI3-0508-5Z delivers superior latch-up immunity and lower leakage due to dielectric isolation, while offering tighter on-resistance matching and simpler logic interface than DG508A - making it optimal for precision, high-reliability multiplexing where overvoltage is controlled.

Availability

HI3-0508-5Z is available at Aetrix Electronics and suitable for medical instrumentation, industrial data acquisition, and test & measurement equipment requiring stable component supply across extended product lifecycles.

Supply support for HI3-0508-5Z 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

Intersil Corporation is a leading provider of precision analog and power management solutions, serving industrial, infrastructure, and high-end consumer markets.

The HI-508 family was designed specifically for high-accuracy, latch-up-immune analog multiplexing in demanding data acquisition and instrumentation applications where signal integrity and long-term reliability are critical.

FAQ

What is the maximum analog signal voltage range supported by the HI3-0508-5Z?

The HI3-0508-5Z supports a full analog signal range of ±15V when operated with ±15V supplies. Absolute maximum ratings allow up to ±22V on +VSUPPLY and −25V on −VSUPPLY relative to GND, but sustained operation beyond ±15V may degrade linearity and increase leakage. For reliable performance, maintain analog inputs within the ±15V range specified in the electrical characteristics table.

Does the HI3-0508-5Z require external pull-up resistors on its address and enable pins?

No, the HI3-0508-5Z does not require external pull-up resistors. It features an internal +5V reference that establishes guaranteed logic thresholds of 2.4V (min) for high and 0.8V (max) for low, enabling direct interface with TTL, CMOS, DTL, and some PMOS logic families without additional biasing components.

What is the typical off-state leakage current of the HI3-0508-5Z at room temperature?

The typical off-state leakage current (IS(OFF)) of the HI3-0508-5Z is 0.03nA at +25°C, with a maximum of 50nA across the full operating temperature range (0°C to +75°C). This ultra-low leakage is enabled by the dielectric isolation process and makes the HI3-0508-5Z suitable for high-impedance sensor multiplexing where signal integrity is critical.

Can the HI3-0508-5Z be used with single-supply operation?

Yes, the HI3-0508-5Z can operate from a single 20V supply (e.g., +20V and GND), as indicated in the Typical Minimum Supply Voltage specification. In this configuration, the analog input range becomes 0V to +20V, and the digital logic thresholds remain referenced internally - though system-level level-shifting may be needed for TTL/CMOS inputs tied to separate logic supplies.

Is the HI3-0508-5Z pin-compatible with the DG508A?

Yes, the HI3-0508-5Z is pin-compatible with the DG508A in the 16-lead PDIP package (E16.3), sharing identical pin assignments for A0–A2, ENABLE, IN1–IN8, OUT, +VSUPPLY, −VSUPPLY, and GND. However, HI3-0508-5Z adds internal logic referencing and dielectric isolation - providing functional upgrade benefits without PCB redesign.