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Renesas HI3-0549-5Z
- Part No.:
- HI3-0549-5Z
- Manufacturer:
- Renesas
- Package:
- 16-DIP (0.300", 7.62mm)
- Datasheet:
-
HI3-0549-5Z.pdf
- Description:
- IC SWITCH SP4T X 2 1.8KOHM 16DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,254
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Product details
Overview
HI3-0549-5Z from Intersil is a 4-channel differential analog multiplexer with active overvoltage protection, ±15V analog signal range, 70VP-P fault tolerance, and guaranteed rON matching. It operates from 0°C to 75°C in a 16-lead PDIP package and is used in industrial telemetry systems where external sensor inputs may exceed supply rails.
For engineers reviewing the HI3-0549-5Z datasheet, HI3-0549-5Z pinout, HI3-0549-5Z application, or HI3-0549-5Z equivalent, key selection criteria include differential channel count, break-before-make switching, ±15V analog range, 12pF off-output capacitance, and 100nA max off-leakage at full temperature range.
Technical Context
The HI3-0549-5Z implements a CMOS-DI die architecture with integrated overvoltage clamping circuitry that isolates faulted channels without disturbing signal integrity on other paths. Its dual differential outputs (OUT A/OUT B) are controlled by two address bits (A0, A1) and an enable input, supporting four independent differential channel selections.
Each input presents 1kΩ resistance during supply loss, and digital inputs tolerate continuous faults up to 4V beyond either supply rail. The device uses level-shifted TTL-compatible logic inputs referenced to VREF and features guaranteed rON matching across all channels for precision instrumentation applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Analog Channels | 4 differential pairs - supports simultaneous bidirectional signal routing with common-mode rejection |
| Analog Signal Range | ±15V - enables direct interface with industrial ±10V sensors and transducers without level-shifting |
| Overvoltage Protection | 70VP-P continuous - protects against transient surges from externally powered equipment |
| rON Matching | ≤7% ΔrON - ensures matched gain and phase response across differential paths for accurate measurements |
| Off Output Capacitance | 12pF - minimizes crosstalk and settling time in high-impedance measurement circuits |
| Enable Delay (tOFF) | ≤1000ns - supports fast channel switching in real-time data acquisition systems |
| Power Dissipation | 7.5mW typical - enables low-power operation in thermally constrained industrial enclosures |
Pinout & Package
HI3-0549-5Z is supplied in a 16-lead plastic dual-in-line package (PDIP), Pb-free per RoHS, with 0°C to 75°C operating temperature range and JEDEC MS-001 compliant outline E16.3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16 | +VSUPPLY / -VSUPPLY | Positive and negative analog supply rails - must be decoupled locally to maintain signal fidelity under fault conditions |
| 2, 15 | IN 1A / IN 1B | Differential input pair 1 - routed through same switch path to preserve common-mode rejection |
| 3, 14 | IN 2A / IN 2B | Differential input pair 2 - isolated from other channels during overvoltage events |
| 4, 13 | IN 3A / IN 3B | Differential input pair 3 - shares identical rON and leakage specs as all other channels |
| 5, 12 | IN 4A / IN 4B | Differential input pair 4 - enables full 4-channel differential MUX functionality |
| 6 | OUT A | Positive output of selected differential pair - referenced to GND and compatible with downstream op-amps |
| 7 | OUT B | Negative output of selected differential pair - maintains polarity relationship with OUT A |
| 8 | GND | Analog ground reference - must be star-connected to minimize noise coupling into sensitive analog paths |
| 9 | A0 | LSB address input - TTL-compatible, accepts 0.8V/4V thresholds for microcontroller interfacing |
| 10 | A1 | MSB address input - controls channel selection along with A0 per truth table |
| 11 | ENABLE | Active-high channel enable - disables all switches when low, reducing system power and leakage |
Key Features
| Feature | Design Value |
|---|---|
| Break-before-make switching | Prevents momentary shorting between differential inputs during channel transitions, eliminating signal glitches |
| Guaranteed rON matching | Ensures consistent gain and phase across all 4 differential pairs for calibrated measurement accuracy |
| Active overvoltage protection | Maintains signal path integrity even when analog inputs exceed ±15V by up to ±33V continuously |
| 1kΩ fault resistance | Protects downstream circuitry during supply loss by limiting current to safe levels without external components |
| Digital input fault tolerance | Accepts logic signals up to 4V beyond either supply rail - eliminates need for external level shifters |
Applications
| Industrial Data Acquisition | Process Control Systems |
|---|---|
Use Scenario: Multiplexing multiple 4–20mA current-loop transmitters feeding a single ADC in a PLC rack. IC Role / Device Role / Timing Role: Differential analog MUX providing channel isolation and overvoltage protection against field wiring faults. Use Value: Eliminates need for external protection diodes and matching resistors while maintaining ±15V signal range compatibility. | Use Scenario: Routing thermocouple and RTD sensor signals to a central signal conditioner in a chemical plant control cabinet. IC Role / Device Role / Timing Role: Fault-tolerant differential switch enabling hot-swap sensor replacement without system shutdown. Use Value: Withstands 70VP-P transients from relay coil back-EMF and motor drive noise without latch-up or damage. |
| Avionics Telemetry Interfaces | Test & Measurement Equipment |
Use Scenario: Selecting between redundant flight sensor outputs (e.g., airspeed, altitude) before digitization in a DAU. IC Role / Device Role / Timing Role: High-reliability differential MUX with guaranteed rON matching for precision ratio-metric measurements. Use Value: Enables <1% gain error across all 4 channels without per-channel calibration, reducing test time and cost. | Use Scenario: Channel selection in automated test equipment connecting DUT analog outputs to calibrated measurement front-ends. IC Role / Device Role / Timing Role: Low-capacitance (12pF) differential switch minimizing settling time and crosstalk in multi-channel scan systems. Use Value: Achieves 0.01% settling in ≤3.5μs, supporting high-throughput parametric testing at >1k samples/sec. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar differential analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| HI9P0549-9Z | SOIC-16 package, -40°C to +85°C temp range, same electrical specs | Better thermal performance and surface-mount compatibility for compact PCB layouts | Select when reflow soldering is required or extended temperature operation is needed |
| HI3-0548-5Z | Single-ended 8-channel MUX, identical PDIP-16 package and temp range | Higher channel count but no differential capability - requires external instrumentation amps | Select only if single-ended topology suffices and additional channels justify added complexity |
Compared with HI3-0549-5Z, HI9P0549-9Z offers superior thermal management and SMT compatibility without sacrificing performance, while HI3-0548-5Z trades differential signaling for higher channel density - making HI3-0549-5Z the optimal choice for noise-immune industrial differential sensing.
Availability
HI3-0549-5Z is available at Aetrix Electronics and suitable for industrial data acquisition, process control systems, and avionics telemetry interfaces requiring stable component supply and long-term obsolescence mitigation.
Supply support for HI3-0549-5Z 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 precision analog and power management semiconductor provider, now part of Renesas Electronics, with legacy expertise in high-reliability industrial and aerospace signal conditioning ICs.
The HI-549 product line was designed specifically for fault-tolerant differential signal routing in harsh environments where external sensor connections risk overvoltage exposure - emphasizing robustness over speed.
FAQ
What is the maximum continuous overvoltage rating for HI3-0549-5Z analog inputs?
The HI3-0549-5Z analog inputs withstand continuous ±33V overvoltage relative to supplies, corresponding to 70VP-P tolerance. This is verified under full temperature range (0°C to 75°C) with ±15V supplies and is enabled by internal active clamping circuitry that isolates faulted channels without disrupting others. HI3-0549-5Z maintains this rating without external components.
Does HI3-0549-5Z support break-before-make switching, and why does it matter?
Yes, HI3-0549-5Z guarantees break-before-make switching behavior, preventing momentary short-circuits between differential input pairs during channel transitions. This eliminates signal glitches and cross-talk in precision measurement systems. The specification is validated per datasheet Figure 7, with tOPEN ≥80ns at 25°C. HI3-0549-5Z relies on this feature for reliable operation in automated test equipment and industrial PLCs.
What is the rON matching specification for HI3-0549-5Z, and how is it tested?
HI3-0549-5Z guarantees ≤7% ΔrON between any two channels at 25°C, measured with VOUT = ±10V and IOUT = 100μA (datasheet Note 2). This matching is process-controlled using Intersil's 44V dielectrically isolated CMOS technology and is confirmed during production test. HI3-0549-5Z achieves this without post-package trimming, ensuring consistency across its full temperature range.
Can HI3-0549-5Z operate with logic inputs driven directly from a 3.3V microcontroller?
Yes - HI3-0549-5Z accepts TTL-compatible logic levels: VAH = 4.0V min and VAL = 0.8V max. A 3.3V microcontroller GPIO meets the low-threshold requirement but falls short of the 4.0V high threshold. To ensure reliable operation, use a 1kΩ pull-up resistor to +5V on each address/enable line, as recommended in datasheet Note 8. HI3-0549-5Z functions correctly with this configuration.
What is the off-output leakage current specification for HI3-0549-5Z at maximum temperature?
At full operating temperature (75°C), HI3-0549-5Z specifies ≤100nA maximum off-output leakage current (ID(OFF)). This value is confirmed in the Electrical Specifications table (page 9) under "-5, -9" column for HI-549 devices. The low leakage preserves signal integrity in high-impedance measurement paths and enables accurate DC-coupled applications. HI3-0549-5Z maintains this spec across its entire 0°C to 75°C range.
HI3-0549-5Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SP4T
- Multiplexer/Demultiplexer Circuit:
- 4:1
- Number of Circuits:
- 2
- 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, 12pF
- Current - Leakage (IS(off)) (Max):
- 30pA (Typ)
- Crosstalk:
- -
- Operating Temperature:
- 0°C ~ 75°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 16-PDIP
HI3-0549-5Z FAQ
1.How can I place an order for HI3-0549-5Z through Aetrix?
Please submit a Request for Quotation (RFQ) for HI3-0549-5Z 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 HI3-0549-5Z reliable?
The price and inventory of HI3-0549-5Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HI3-0549-5Z is usually 5 days.
3.What payment methods are accepted for HI3-0549-5Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HI3-0549-5Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HI3-0549-5Z?
HI3-0549-5Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HI3-0549-5Z 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 HI3-0549-5Z?
For technical support, including HI3-0549-5Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HI3-0549-5Z requirements.
6.How does Aetrix verify that HI3-0549-5Z is sourced from the original manufacturer or authorized distributors?
All HI3-0549-5Z 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 HI3-0549-5Z meets industry standards.
7.What is the process for return or replacement of HI3-0549-5Z?
All HI3-0549-5Z units undergo pre-shipment inspection (PSI). If there is an issue with HI3-0549-5Z, 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 HI3-0549-5Z part is unused and in its original packaging.
Return procedure for HI3-0549-5Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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