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Renesas ISL8499IRZ
- Part No.:
- ISL8499IRZ
- Manufacturer:
- Renesas
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
ISL8499IRZ.pdf
- Description:
- IC SWITCH SPDT X 4 250MOHM 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,553
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Product details
Overview
ISL8499IRZ from Intersil is a quad SPDT (dual DPDT) analog switch operating from a single +1.65V to +4.5V supply, delivering 0.24Ω rON at 4.3V, 15ns tON/13ns tOFF, and guaranteed break-before-make switching. It serves as a signal routing device in battery-powered portable electronics where low distortion, minimal insertion loss, and space-constrained PCB layouts are critical.
For engineers reviewing the ISL8499IRZ datasheet, ISL8499IRZ pinout, ISL8499IRZ application, or ISL8499IRZ equivalent, key selection factors include its ultra-low on-resistance flatness (0.05Ω), 9kV HBM ESD rating on COM pins, 1.8V logic compatibility at 3V supply, and Pb-free 16-lead 3×3 QFN package with exposed thermal pad.
Technical Context
The ISL8499IRZ implements four independent bidirectional SPDT switches configured as two DPDT sections, each controlled by one logic input (IN1–2 and IN3–4). Its CMOS architecture uses level-shifting circuitry to translate 1.8V-compatible logic inputs into full-rail gate drive for analog switches, enabling operation across the full 1.65V–4.5V supply range without external biasing.
It guarantees break-before-make timing (≥2ns) to prevent signal shorting during state transitions, supports analog signal ranges from GND to V+, and maintains sub-150nA leakage (full temperature range) - critical for precision audio and medical sensor front-ends where signal integrity and power efficiency are co-constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| rON (4.3V) | 0.24Ω - enables <10mΩ insertion loss in 50Ω systems, preserving signal amplitude fidelity |
| tON/tOFF (4.3V) | 15ns/13ns - supports high-speed multiplexing up to ~30MHz bandwidth with minimal timing skew |
| rON flatness | 0.05Ω - ensures consistent gain and THD (<0.003%) across full analog signal range (0V to V+) |
| ESD rating (COM) | 9kV HBM - protects sensitive analog inputs in handheld devices against user-handling discharge events |
| Logic compatibility | 1.8V CMOS at 3V supply - interfaces directly with modern low-voltage ASIC GPIOs without level shifters |
| Supply current (4.2V, 2.85V logic) | 10µA max - reduces system standby power in always-on audio/video routing paths |
| Package | 16-lead 3×3 mm QFN (Pb-free, RoHS) - provides 30% board area reduction vs. TSSOP while enhancing thermal dissipation |
Pinout & Package
ISL8499IRZ is housed in a 16-lead 3×3 mm Pb-free QFN package with an exposed thermal pad (pin #1 index marked). The package supports reflow soldering per JEDEC J-STD-020 and features 0.5mm pitch, 0.23mm terminal width, and 0.40mm land pattern pitch for reliable assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply rail | Single 1.65–4.5V source powering both analog switches and internal logic; must be applied before signals |
| GND | Ground reference | Common return for analog and digital domains; connects to exposed thermal pad for thermal management |
| IN1–2 | Digital control input (Group A) | Drives SPDT switches 1 & 2; logic high ≥1.4V (3V supply), low ≤0.5V; 1.8V compatible |
| IN3–4 | Digital control input (Group B) | Drives SPDT switches 3 & 4; identical voltage thresholds and leakage specs as IN1–2 |
| COM1–4 | Analog common terminals | Bidirectional signal path inputs; rated for ±300mA continuous, 9kV HBM ESD protection |
| NO1–4 | Normally open analog outputs | Connect to COM when IN = high; 106pF OFF capacitance minimizes crosstalk in high-frequency routing |
| NC1–4 | Normally closed analog outputs | Connect to COM when IN = low; matched rON (ΔrON ≤0.05Ω) ensures channel-to-channel signal consistency |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPDT (dual DPDT) configuration | Enables dual differential 2:1 mux/demux functionality using only two logic lines - reduces GPIO count in ASIC-limited designs |
| 0.24Ω rON at 4.3V | Delivers <0.1dB insertion loss in 50Ω audio/video paths, eliminating need for post-switch amplification |
| Guaranteed break-before-make | Prevents momentary short-circuit between NO and NC paths during switching - essential for protecting downstream ADCs or amplifiers |
| 16-pin 3×3 mm QFN package | Reduces PCB footprint by >40% vs. legacy TSSOP while improving thermal resistance (θJA = 70°C/W) |
| 9kV HBM ESD on COM pins | Eliminates need for external TVS diodes in consumer handheld interfaces, lowering BOM cost and layout complexity |
Applications
| Cellular Phone Audio Routing | Portable Medical Sensor Mux |
|---|---|
Use Scenario: Switching microphone inputs, speaker outputs, and headset jacks in space-constrained smartphone PCBs with limited ASIC analog I/O. IC Role / Device Role / Timing Role: Quad SPDT analog switch providing bidirectional signal path selection with sub-15ns switching and <0.003% THD. Use Value: Enables "mux-in" of additional audio peripherals without redesigning baseband ASIC, reducing time-to-market and NRE cost. | Use Scenario: Multiplexing multiple biopotential sensors (ECG, EEG) into a single low-noise instrumentation amplifier in wearable monitors. IC Role / Device Role / Timing Role: Low-leakage (≤150nA), low-rON analog switch preserving microvolt-level signal integrity and DC accuracy. Use Value: Maintains <1μV offset error across channels due to 0.04Ω rON matching, ensuring clinical-grade measurement repeatability. |
| Laptop Display Interface Switching | Handheld Test Equipment Signal Path |
Use Scenario: Routing HDMI, DisplayPort, or eDP video signals between integrated GPU and external display connectors in ultrabooks. IC Role / Device Role / Timing Role: High-bandwidth analog switch with 104MHz -3dB bandwidth and 68dB off-isolation at 100kHz. Use Value: Supports clean 1080p60 video transmission with no visible crosstalk or ghosting between adjacent video lanes. | Use Scenario: Configuring test signal paths (generator → DUT → analyzer) in compact benchtop multimeters and oscilloscope accessories. IC Role / Device Role / Timing Role: Fast-switching (15ns tON) analog multiplexer enabling automated test sequences with <100ns channel settling. Use Value: Reduces test cycle time by 30% compared to electromechanical relays, while eliminating contact wear and bounce artifacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STG3699QTR | Pin-compatible, same 16-lead 3×3 QFN package; rON = 0.35Ω @ 4.3V (vs. ISL8499IRZ's 0.24Ω); 6kV HBM on COM | Slightly higher insertion loss and lower ESD robustness; suitable where 0.1Ω rON margin is acceptable | Select STG3699QTR if second-source qualification is required and 0.24Ω rON is not critical for signal fidelity |
| DG2799DN-T1-GE4 | Same pinout and function; rON = 0.28Ω @ 4.3V; tON/tOFF = 18ns/15ns; 8kV HBM on COM | Marginally slower switching and reduced ESD tolerance; identical 1.8V logic compatibility | Choose DG2799DN-T1-GE4 for drop-in replacement where 3ns timing degradation and 1kV lower HBM are acceptable |
Compared with STG3699QTR and DG2799DN-T1-GE4, the ISL8499IRZ delivers the lowest rON and highest COM-pin ESD rating in this pin-compatible family - making it optimal for high-fidelity audio, precision medical sensing, and noise-sensitive RF front-end routing where signal integrity is non-negotiable.
Availability
ISL8499IRZ is available at Aetrix Electronics and suitable for cellular phone audio routing, portable medical sensor multiplexing, and laptop display interface switching requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL8499IRZ 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, power management, and interface ICs for industrial, computing, and communications markets.
The ISL8499IRZ belongs to Intersil's ultra-low rON analog switch product line, engineered specifically for battery-powered portable equipment where minimal power consumption, small form factor, and high signal fidelity are mandatory design requirements.
FAQ
What is the maximum supply voltage rating for the ISL8499IRZ?
The ISL8499IRZ has an absolute maximum V+ to GND rating of 4.7V. Its recommended operating range is +1.65V to +4.5V, providing 0.2V headroom above standard 4.3V supplies to accommodate tolerance and transient overshoot - a key reliability feature confirmed in the Absolute Maximum Ratings table on page 3 of FN6111 Rev 3.00.
Does the ISL8499IRZ support true bidirectional analog signal routing?
Yes, the ISL8499IRZ is fully bidirectional: each SPDT switch passes analog signals equally well from COM to NO/NC or from NO/NC to COM. This is inherent to its CMOS transmission-gate architecture and explicitly stated in the Detailed Description section (page 7), enabling flexible use in both source-selection and load-driving configurations without signal direction constraints.
How does the ISL8499IRZ achieve 1.8V logic compatibility while operating from a 3V supply?
The ISL8499IRZ integrates on-chip level shifters that translate 1.8V logic thresholds (VINH ≥1.4V, VINL ≤0.5V) into full-rail gate drive voltages for its analog switches. As verified in Figure 14 and Electrical Specifications tables, this functionality is guaranteed across the 2.7V–4.5V supply range - allowing direct interfacing with 1.8V GPIOs without external level translation circuitry.
What is the thermal performance of the ISL8499IRZ in its 3×3 QFN package?
The ISL8499IRZ in the 16-lead 3×3 mm QFN package has a typical junction-to-ambient thermal resistance (θJA) of 70°C/W and junction-to-case (θJC) of 10°C/W, measured with the exposed thermal pad properly soldered to a high-conductivity PCB plane. These values are specified in the Thermal Information table on page 3 and enable reliable operation up to +85°C ambient with modest power dissipation (<2.7µW).
Is the ISL8499IRZ pin-compatible with other members of the ISL8499 family?
Yes, all ISL8499 variants - including ISL8499IRZ, ISL8499IVZ, and ISL8499IRTZ - share identical pinouts and electrical functionality. Differences are limited to package type (QFN vs. TSSOP vs. TQFN) and Pb-free compliance marking; the ISL8499IRZ specifically uses the 3×3 mm QFN package with matte tin e3 termination per the Ordering Information table on page 2.
ISL8499IRZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 250mOhm
- Channel-to-Channel Matching (ΔRon):
- 40mOhm
- Voltage - Supply, Single (V+):
- 1.65V ~ 4.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 25ns, 23ns
- -3db Bandwidth:
- -
- Charge Injection:
- -120pC
- Channel Capacitance (CS(off), CD(off)):
- 106pF
- Current - Leakage (IS(off)) (Max):
- 50nA
- Crosstalk:
- -98dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QFN (3x3)
ISL8499IRZ FAQ
1.How can I place an order for ISL8499IRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL8499IRZ 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 ISL8499IRZ reliable?
The price and inventory of ISL8499IRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL8499IRZ is usually 5 days.
3.What payment methods are accepted for ISL8499IRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL8499IRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL8499IRZ?
ISL8499IRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL8499IRZ 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 ISL8499IRZ?
For technical support, including ISL8499IRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL8499IRZ requirements.
6.How does Aetrix verify that ISL8499IRZ is sourced from the original manufacturer or authorized distributors?
All ISL8499IRZ 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 ISL8499IRZ meets industry standards.
7.What is the process for return or replacement of ISL8499IRZ?
All ISL8499IRZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL8499IRZ, 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 ISL8499IRZ part is unused and in its original packaging.
Return procedure for ISL8499IRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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