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Renesas ISL84515IHZ-T
- Part No.:
- ISL84515IHZ-T
- Manufacturer:
- Renesas
- Package:
- SC-74A, SOT-753
- Datasheet:
-
ISL84515IHZ-T.pdf
- Description:
- IC SWITCH SPST-NC X 1 20OHM 5SOT
- Quantity:
- Payment:
- Shipping:
Inventory:2,990
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Product details
Overview
ISL84515IHZ-T from Intersil is a low-voltage, single-supply, normally closed (NC) SPST analog switch optimized for battery-powered and space-constrained systems. It operates from +2.4V to +12V, delivers 8Ω rON at 12V, 12Ω at 5V, and achieves tON/tOFF of 40ns/25ns (12V), with <5µW power consumption and 20nA max off-leakage at +85°C - enabling precision signal routing in portable medical ultrasound front-ends and low-voltage ADC multiplexing.
For engineers reviewing the ISL84515IHZ-T datasheet, ISL84515IHZ-T pinout, ISL84515IHZ-T application, or ISL84515IHZ-T equivalent, key selection criteria include its SOT-23-5 package footprint, NC logic behavior, guaranteed 2.4V minimum supply operation, and verified 100MHz off-isolation performance in 50Ω systems.
Technical Context
The ISL84515IHZ-T implements a CMOS transmission-gate architecture with integrated level-shifting logic, enabling TTL/CMOS-compatible digital control across its full +2.4V to +12V supply range. Its internal ESD diodes clamp analog pins to V+ and GND, requiring strict supply-first sequencing but permitting ±0.3V overvoltage tolerance when protected.
It features rail-to-rail analog signal handling (0V to V+), flat rON variation (≤5Ω max over signal range), and charge injection ≤10pC - critical for sample-and-hold accuracy and DAC output switching where glitch energy must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| rON (max) | 8Ω at V+ = 12V - enables <10mV drop at 10mA load in precision sensor signal paths |
| rON flatness (max) | 5Ω - ensures consistent gain error across full analog input range in instrumentation amplifiers |
| tON/tOFF (max) | 240ns/150ns - supports >2MHz multiplexed sampling in portable data loggers |
| Off-leakage (max, +85°C) | 20nA - maintains <1LSB error in 16-bit, 1MΩ-input-impedance ADC interfaces |
| Charge injection (max) | 10pC - limits voltage step on 1nF hold capacitors to <10mV, preserving 12-bit integrity |
| Supply range | +2.4V to +12V - powers directly from Li-ion (3.0–4.2V), 5V rails, or industrial 12V supplies without regulation |
| ESD rating | 2000V HBM - meets IEC 61000-4-2 Level 2 for handheld device touch-signal routing |
Pinout & Package
ISL84515IHZ-T uses the 5-lead SOT-23 package (JEDEC MO-178AA, Intersil P5.064), measuring 2.80mm × 2.60mm × 1.30mm with gull-wing leads. This ultra-compact outline reduces PCB area by >60% versus SOIC-8 while maintaining thermal resistance θJA = 225°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Digital control input | TTL/CMOS-compatible; logic '0' ≤0.8V turns switch ON (NC path closed); requires V+ applied before signal |
| 2 - V+ | Positive supply rail | +2.4V to +12V system power; powers internal logic and analog switches; 15V absolute max |
| 3 - GND | Ground reference | Return path for supply and analog signals; must be connected before applying analog inputs |
| 4 - COM | Analog common terminal | Switch output node; connects to NC pin when IN = '0'; supports rail-to-rail analog signals (0V to V+) |
| 5 - NC | Analog normally closed terminal | Default-connected to COM when IN = '0'; opens when IN = '1'; no internal connection to NO or other pins |
Key Features
| Feature | Design Value |
|---|---|
| Normally closed (NC) configuration | Ensures fail-safe signal continuity during power-up or controller reset in patient-monitoring analog front-ends |
| Low 5µW quiescent power | Extends battery life in portable ECG devices by minimizing standby current drain per channel |
| 2000V HBM ESD protection | Eliminates need for external TVS diodes in handheld test equipment probe interfaces |
| 10pC max charge injection | Prevents measurable pedestal error in integrator reset circuits used in precision current measurement |
| SOT-23-5 footprint | Enables high-density layout in ultrasound transducer array driver modules with tight inter-channel spacing |
Applications
| Portable Medical Ultrasound Front-End | Battery-Powered Data Logger |
|---|---|
Use Scenario: Routing echo return signals from 16-channel transducer arrays to low-noise amplifiers before digitization. IC Role / Device Role / Timing Role: NC analog switch isolating unused channels to reduce noise coupling and crosstalk between adjacent elements. Use Value: 8Ω rON and 5Ω rON flatness preserve signal fidelity across 1–15MHz bandwidth; SOT-23-5 enables compact multi-channel layout. | Use Scenario: Multiplexing thermistor, pressure, and humidity sensor outputs into a single 12-bit SAR ADC in field-deployable environmental monitors. IC Role / Device Role / Timing Role: Low-leakage analog switch selecting sensor inputs under microcontroller GPIO control. Use Value: 20nA max off-leakage prevents >1LSB error at 1MΩ sensor impedance; 2.4V min supply allows direct Li-ion operation. |
| Low-Voltage Audio Signal Switching | Portable Spectrum Analyzer Input Path |
Use Scenario: Selecting between microphone preamp outputs and line-level inputs in handheld audio analyzers. IC Role / Device Role / Timing Role: NC switch providing default audio path during boot; opened only when alternate source is selected. Use Value: 10pC charge injection avoids audible pop/click artifacts; 90dB off-isolation suppresses inter-channel crosstalk at 20kHz. | Use Scenario: Attenuator bypass and RF front-end calibration path switching in handheld 1GHz spectrum analyzers. IC Role / Device Role / Timing Role: High-speed analog switch enabling fast reconfiguration of input signal conditioning chains. Use Value: 40ns tON supports <25ns channel switching latency; 200MHz -3dB bandwidth preserves signal integrity up to 500MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4515EUT+T | Same NC function, SOT-23-5 package, but higher 35Ω rON at 5V and 30nA leakage at +85°C | Less suitable for precision 12-bit+ data acquisition where rON matching and leakage affect accuracy | Select ISL84515IHZ-T for lower rON, tighter flatness, and superior leakage in battery-critical designs |
| ISL84515IBZ-T | Identical electrical specs but in 8-lead SOIC package (M8.15), larger footprint and higher θJA (170°C/W vs 225°C/W) | Preferred for prototyping or legacy SOIC layouts; unsuitable for ultra-dense portable PCBs | Choose ISL84515IHZ-T when board space is constrained and thermal dissipation via PCB copper is limited |
Compared with MAX4515EUT+T and ISL84515IBZ-T, the ISL84515IHZ-T delivers the lowest rON and leakage in the smallest package - making it optimal for miniaturized, low-power, high-accuracy analog signal routing where every millimeter and nanoamp matters.
Availability
ISL84515IHZ-T is available at Aetrix Electronics and suitable for portable medical devices, battery-powered test equipment, and space-constrained industrial data acquisition systems requiring stable component supply and long-term production continuity.
Supply support for ISL84515IHZ-T 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 (now part of Renesas Electronics) is a U.S.-based semiconductor company specializing in precision analog and power management ICs for industrial, medical, and communications markets.
The ISL84515IHZ-T belongs to Intersil's low-voltage analog switch product line, designed specifically for battery-operated, high-density portable systems demanding rail-to-rail signal handling, ultra-low power, and robust ESD performance.
FAQ
What is the maximum supply voltage rating for the ISL84515IHZ-T?
The ISL84515IHZ-T has an absolute maximum supply voltage (V+ to GND) of 15V. It is fully specified for continuous operation from +2.4V to +12V, with electrical parameters guaranteed across this range. Operating above 12V is not recommended for long-term reliability, though transient spikes up to 15V are tolerated per absolute maximum ratings.
Does the ISL84515IHZ-T require external pull-up or pull-down resistors on the IN pin?
No, the ISL84515IHZ-T does not require external biasing on the IN pin. Its digital input is TTL/CMOS compatible with guaranteed VIH ≥2.4V and VIL ≤0.8V across the full supply range. The internal input structure draws <1µA, so direct connection to microcontroller GPIO or logic gates is sufficient without added resistors.
How does the ISL84515IHZ-T behave during power-up when V+ is not yet stable?
During power-up, the ISL84515IHZ-T defaults to its NC state (COM connected to NC) only after V+ reaches ~2.0V and remains stable. Below 2.4V, the internal logic is undefined; however, the analog path remains high-impedance until valid logic levels are applied. Always apply V+ before digital or analog signals to prevent ESD diode conduction and potential latch-up.
Can the ISL84515IHZ-T switch signals exceeding the V+ rail?
No. The ISL84515IHZ-T supports analog signals only within the 0V to V+ range. Signals exceeding V+ or going below GND forward-bias internal ESD diodes, risking damage or increased leakage. For overvoltage-tolerant switching, external clamping or dedicated fault-protected switches are required - the ISL84515IHZ-T itself provides no beyond-the-rail capability.
What is the thermal resistance (θJA) of the ISL84515IHZ-T in its SOT-23-5 package?
The ISL84515IHZ-T in the 5-lead SOT-23 package has a typical junction-to-ambient thermal resistance (θJA) of 225°C/W, measured on a low-thermal-conductivity test board in free air. This value assumes minimal PCB copper; adding thermal vias and copper pour can reduce effective θJA by 30–50% in production layouts.
ISL84515IHZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 20Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- 2.4V ~ 12V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 150ns, 100ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 14pF, 14pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-SOT
ISL84515IHZ-T FAQ
1.How can I place an order for ISL84515IHZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL84515IHZ-T 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 ISL84515IHZ-T reliable?
The price and inventory of ISL84515IHZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL84515IHZ-T is usually 5 days.
3.What payment methods are accepted for ISL84515IHZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL84515IHZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL84515IHZ-T?
ISL84515IHZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL84515IHZ-T 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 ISL84515IHZ-T?
For technical support, including ISL84515IHZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL84515IHZ-T requirements.
6.How does Aetrix verify that ISL84515IHZ-T is sourced from the original manufacturer or authorized distributors?
All ISL84515IHZ-T 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 ISL84515IHZ-T meets industry standards.
7.What is the process for return or replacement of ISL84515IHZ-T?
All ISL84515IHZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL84515IHZ-T, 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 ISL84515IHZ-T part is unused and in its original packaging.
Return procedure for ISL84515IHZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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