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Home > Products > Integrated Circuits (ICs) > Interface > Analog Switches, Multiplexers, Demultiplexers

Renesas HI4P0546-5Z

Name: HI4P0546-5Z
Brand: Renesas
SKU: HI4P0546-5Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: HI4P0546-5Z

Manufacturer:: Renesas

Category:: Analog Switches, Multiplexers, Demultiplexers

Package:: 28-LCC (J-Lead)

Datasheet:: HI4P0546-5Z.pdf

Description:: IC MUX 16:1 1.8KOHM 28PLCC

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Product details

Overview

HI4P0546-5Z from Intersil is a single 16-channel CMOS analog multiplexer with active overvoltage protection, ±15V analog signal range, 70V_P-P fault tolerance, and guaranteed r_ON matching. It operates from 0°C to 75°C in a 28-lead PLCC package and is used in industrial data acquisition systems where external sensors may exceed supply rails.

For engineers reviewing the HI4P0546-5Z datasheet, HI4P0546-5Z pinout, HI4P0546-5Z application, or HI4P0546-5Z equivalent, key selection criteria include overvoltage robustness, channel count, break-before-make switching, r_ON matching, and compatibility with ±15V dual-supply industrial signal chains.

Technical Context

The HI4P0546-5Z implements dielectrically isolated CMOS (CMOS-DI) technology with integrated overvoltage clamping circuitry that protects inputs up to ±33V beyond supplies without signal path disturbance. Its decoder/driver stage supports 4-bit address decoding (A0–A3) and enables channel selection via TTL/CMOS-compatible digital inputs.

Each analog input presents 1kΩ resistance during supply loss, and the device features level-shifted address buffers referenced to VREF for reliable logic-level translation. Break-before-make switching prevents momentary channel shorts during transitions, critical for high-fidelity multiplexing in precision measurement.

Key Specifications

Parameter	Value and Actual Design Meaning
Analog Channels	16 single-ended channels - supports dense sensor array routing without external buffering
Analog Signal Range	±15V - compatible with standard industrial bipolar signal conditioning stages
Overvoltage Protection	70V_P-P continuous, ±33V fault - eliminates need for external clamping diodes in field-connected I/O
Access Time	500ns typical - enables sampling rates up to ~1 MHz in time-critical DAQ subsystems
r_ON Matching	≤7% Δr_ON - ensures consistent gain and minimal crosstalk-induced measurement error across channels
Power Dissipation	7.5mW typical - suitable for thermally constrained embedded modules and sealed enclosures
Supply Voltage Max	+44V total (V+ to V−) - allows operation with extended rail configurations up to ±22V

Pinout & Package

HI4P0546-5Z is housed in a 28-lead Plastic Leaded Chip Carrier (PLCC) package per JEDEC MS-018AB, with gull-wing leads, 0.050" pitch, and body dimensions 0.485" × 0.485". Pin 1 identifier is a corner notch; seating plane defined per JEDEC standards.

Pin/Terminal	Circuit Role	Design Meaning
1, 28	+VSUPPLY / -VSUPPLY	Dual analog supply rails - must be decoupled locally; ±15V nominal operation
14, 15, 16, 17	A0, A1, A2, A3	4-bit binary address inputs - select one of 16 channels; TTL/CMOS compatible
13	ENABLE	Active-high channel enable - disables all switches when low; reduces leakage and power
2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 18, 19, 20, 21, 22	IN 1–IN 16	Analog input terminals - each withstands ±33V overvoltage independently
27	OUT	Common analog output - routed to ADC or signal conditioner; low capacitance (52pF)
19	GND	Analog ground reference - separate from digital ground; critical for noise immunity
16	VREF	Reference for level-shifter - open or tied to +5V depending on logic drive source

Key Features

Feature	Design Value
Active Overvoltage Protection	Clamps ±33V faults without latch-up or signal path disruption - enables direct connection to unregulated field wiring
No Channel Interaction During Fault	Unselected channels remain fully isolated during overvoltage events - preserves integrity of parallel measurements
Break-Before-Make Switching	Guaranteed non-overlapping conduction - prevents short-circuit transients between channels during reconfiguration
Guaranteed r_ON Matching	≤7% variation across all 16 channels - eliminates calibration drift in multi-channel gain-matched systems
Dielectric Isolation (CMOS-DI)	Eliminates latch-up risk and improves noise immunity in mixed-signal industrial environments

Applications

Industrial Data Acquisition	Process Control Monitoring
Use Scenario: Multiplexing 16 temperature, pressure, and flow sensor outputs into a single 16-bit ADC in a PLC backplane. IC Role / Device Role / Timing Role: Analog signal router with fault-tolerant front-end protection before digitization. Use Value: Eliminates external TVS arrays and discrete protection components, reducing BOM count and board area by >30%.	Use Scenario: Sampling analog feedback signals from motor drives, valve positioners, and safety interlocks in hazardous-area control cabinets. IC Role / Device Role / Timing Role: High-reliability channel selector enabling centralized diagnostics and redundancy management. Use Value: Withstands ±33V transients induced by inductive load switching, preventing system resets or false alarms.
Test Equipment Signal Routing	Avionics Sensor Interface
Use Scenario: Configurable signal path in automated test equipment (ATE) for calibrating multi-parameter instrumentation. IC Role / Device Role / Timing Role: Precision analog switch matrix supporting programmable gain, offset, and reference selection. Use Value: 500ns access time and <7% r_ON matching ensure measurement repeatability within 0.1% full-scale accuracy.	Use Scenario: Consolidating analog outputs from inertial measurement units (IMUs), fuel gauges, and environmental sensors onto shared avionics bus interfaces. IC Role / Device Role / Timing Role: Ruggedized multiplexer meeting DO-160 lightning-induced transient requirements. Use Value: 70V_P-P overvoltage rating satisfies MIL-STD-704 and RTCA/DO-160 Section 22 surge immunity thresholds.

Industrial Data Acquisition

Process Control Monitoring

Use Scenario: Multiplexing 16 temperature, pressure, and flow sensor outputs into a single 16-bit ADC in a PLC backplane.

IC Role / Device Role / Timing Role: Analog signal router with fault-tolerant front-end protection before digitization.

Use Value: Eliminates external TVS arrays and discrete protection components, reducing BOM count and board area by >30%.

Use Scenario: Sampling analog feedback signals from motor drives, valve positioners, and safety interlocks in hazardous-area control cabinets.

IC Role / Device Role / Timing Role: High-reliability channel selector enabling centralized diagnostics and redundancy management.

Use Value: Withstands ±33V transients induced by inductive load switching, preventing system resets or false alarms.

Test Equipment Signal Routing

Avionics Sensor Interface

Use Scenario: Configurable signal path in automated test equipment (ATE) for calibrating multi-parameter instrumentation.

IC Role / Device Role / Timing Role: Precision analog switch matrix supporting programmable gain, offset, and reference selection.

Use Value: 500ns access time and <7% r_ON matching ensure measurement repeatability within 0.1% full-scale accuracy.

Use Scenario: Consolidating analog outputs from inertial measurement units (IMUs), fuel gauges, and environmental sensors onto shared avionics bus interfaces.

IC Role / Device Role / Timing Role: Ruggedized multiplexer meeting DO-160 lightning-induced transient requirements.

Use Value: 70V_P-P overvoltage rating satisfies MIL-STD-704 and RTCA/DO-160 Section 22 surge immunity thresholds.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
HI9P0546-9Z	Same HI-546 core functionality but in 28-lead SOIC package; wider operating temperature (−40°C to +85°C); identical electrical specs	Better thermal performance in convection-cooled enclosures; requires different PCB footprint and reflow profile	Select when extended temperature range or surface-mount assembly is required; not drop-in compatible due to package change
HI3-0546-5Z	Same 28-lead PDIP package and 0°C to +75°C range, but Pb-free PDIP variant; otherwise electrically identical to HI4P0546-5Z	Suitable for through-hole wave solder only; not rated for reflow; slightly higher θ_JA (60°C/W vs. 70°C/W)	Choose for legacy through-hole production lines where PLCC tooling is unavailable

Compared with HI9P0546-9Z and HI3-0546-5Z, the HI4P0546-5Z offers optimal balance of rugged PLCC mechanical reliability, industry-standard lead pitch, and compatibility with both wave and reflow processes - making it preferred for new industrial designs requiring long-term supply stability and field-wire resilience.

Availability

HI4P0546-5Z is available at Aetrix Electronics and suitable for industrial data acquisition, process control monitoring, and test equipment signal routing requiring stable component supply across extended product lifecycles.

Supply support for HI4P0546-5Z 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 ICs, now part of Renesas Electronics, with deep expertise in high-reliability industrial and aerospace signal conditioning.

The HI-546 family was designed specifically for fault-tolerant analog multiplexing in harsh environments - emphasizing overvoltage resilience, channel isolation, and guaranteed matching over raw speed or ultra-low power.

FAQ

What is the maximum analog overvoltage the HI4P0546-5Z can sustain continuously?

The HI4P0546-5Z sustains ±33V analog overvoltage continuously relative to its supplies, corresponding to a 70V_P-P capability. This is verified under full temperature range (0°C to 75°C) and does not require external components. The protection circuitry remains active without degrading signal fidelity or disturbing other channels.

Does the HI4P0546-5Z support break-before-make switching, and why is it important?

Yes, the HI4P0546-5Z guarantees break-before-make switching with a typical t_OPEN of 80ns. This prevents momentary short circuits between channels during address changes - essential for avoiding signal corruption, ground loops, or damage in multi-source analog systems like sensor arrays or programmable gain stages.

What is the role of the VREF pin on the HI4P0546-5Z, and how should it be configured?

The VREF pin on the HI4P0546-5Z sets the reference voltage for internal level shifters driving the analog switch gates. When driven from TTL/CMOS sources (VAH = 4V), VREF should be left open. For MOS-level logic (VAH > 6V), tie VREF to the logic high voltage. Incorrect configuration causes incomplete turn-on and elevated r_ON.

How does the HI4P0546-5Z handle supply loss while analog inputs remain energized?

When either +VSUPPLY or -VSUPPLY is lost, the HI4P0546-5Z isolates all analog inputs by presenting 1kΩ resistance per channel - preventing backfeeding and protecting upstream sources. This behavior is intrinsic to the CMOS-DI process and requires no external circuitry, making it ideal for hot-swap or redundant power architectures.

Is the HI4P0546-5Z RoHS compliant, and what does "Pb-Free Plus Anneal" mean?

Yes, the HI4P0546-5Z is RoHS compliant and uses Intersil's Pb-Free Plus Anneal construction: 100% matte tin plating with annealed intermetallics to prevent tin whisker growth, compatible with both SnPb and Pb-free soldering processes, and qualified to IPC/JEDEC J-STD-020 reflow profiles.

HI4P0546-5Z Specifications

Product attributes: Attribute value

Manufacturer:: Renesas

Series:: -

Packaging:: Tube

Product Status:: Active

Switch Circuit:: -

Multiplexer/Demultiplexer Circuit:: 16:1

Number of Circuits:: 1

On-State Resistance (Max):: 1.8kOhm

Channel-to-Channel Matching (ΔRon):: 126Ohm

Voltage - Supply, Single (V+):: -

Voltage - Supply, Dual (V±):: ±15V

Switch Time (Ton, Toff) (Max):: 300ns, 300ns (Typ)

-3db Bandwidth:: -

Charge Injection:: -

Channel Capacitance (CS(off), CD(off)):: 10pF, 52pF

Current - Leakage (IS(off)) (Max):: 30pA (Typ)

Crosstalk:: -

Operating Temperature:: 0°C ~ 75°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 28-PLCC (11.51x11.51)

HI4P0546-5Z FAQ

1.How can I place an order for HI4P0546-5Z through Aetrix?

Please submit a Request for Quotation (RFQ) for HI4P0546-5Z on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for HI4P0546-5Z reliable?

The price and inventory of HI4P0546-5Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HI4P0546-5Z is usually 5 days.

3.What payment methods are accepted for HI4P0546-5Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HI4P0546-5Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for HI4P0546-5Z?

HI4P0546-5Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your HI4P0546-5Z order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for HI4P0546-5Z?

For technical support, including HI4P0546-5Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HI4P0546-5Z requirements.

6.How does Aetrix verify that HI4P0546-5Z is sourced from the original manufacturer or authorized distributors?

All HI4P0546-5Z products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that HI4P0546-5Z meets industry standards.

7.What is the process for return or replacement of HI4P0546-5Z?

All HI4P0546-5Z units undergo pre-shipment inspection (PSI). If there is an issue with HI4P0546-5Z, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The HI4P0546-5Z part is unused and in its original packaging.

Return procedure for HI4P0546-5Z:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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