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Renesas ISL54048IRUZ-T
- Part No.:
- ISL54048IRUZ-T
- Manufacturer:
- Renesas
- Package:
- 10-UFQFN
- Datasheet:
-
ISL54048IRUZ-T.pdf
- Description:
- IC SW SPST-NOX2 300MOHM 10UTQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ISL54048IRUZ-T from Intersil is a dual SPST analog switch with normally open (NO) configuration, designed for low-voltage signal routing in battery-powered portable systems. It delivers 0.29 Ω ON-resistance at +4.3V supply, 40 ns turn-on time, and operates from +1.65V to +4.5V single supply - enabling high-fidelity audio/video switching and ASIC I/O expansion in mobile phones and handheld medical devices.
For engineers reviewing the ISL54048IRUZ-T datasheet, ISL54048IRUZ-T pinout, ISL54048IRUZ-T application, or ISL54048IRUZ-T equivalent, key selection criteria include verified rON matching (≤0.06 Ω), sub-200 nA leakage across –40°C to +85°C, 1.8V logic compatibility at 3V supply, and µTQFN-10 package footprint compatibility with space-constrained PCB layouts.
Technical Context
The ISL54048IRUZ-T implements two independent bidirectional CMOS SPST switches with NO topology, driven by level-shifted digital inputs compatible with 1.8V logic thresholds (VINH ≥ 1.4V, VINL ≤ 0.5V at 3V supply). Its submicron CMOS process enables ultra-low rON flatness (0.03 Ω) and minimal charge injection (170 pC), preserving signal integrity in precision analog paths.
Each switch supports full rail-to-rail analog signal range (0V to V+), with ESD robustness >8kV HBM and absolute maximum ratings up to 5.5V on V+. The device requires no bipolar supplies and mandates V+ sequencing prior to input signals to prevent ESD diode forward biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ON-Resistance (rON) | 0.29 Ω at V+ = +4.3V - ensures <0.01 dB insertion loss in 50 Ω audio/video paths |
| Turn-On/Off Time | 40 ns / 20 ns at V+ = +4.3V - supports >10 MHz digital control of analog signals |
| rON Matching | 0.06 Ω max - guarantees matched gain/attenuation between dual channels in differential or parallel routing |
| Supply Range | +1.65V to +4.5V single supply - enables direct interface with Li-ion battery (3.0–4.2V) and 1.8V/3.3V logic domains |
| Leakage Current | ±195 nA max (full temp range) - preserves DC accuracy in sensor front-ends and medical signal chains |
| Logic Compatibility | 1.8V logic-compatible at 3V supply (VINH ≥ 1.4V, VINL ≤ 0.5V) - eliminates need for external level shifters |
| Package | 10-lead µTQFN (1.8 mm × 1.4 mm × 0.5 mm, 0.4 mm pitch) - fits <2.5 mm² board area in ultra-thin mobile designs |
Pinout & Package
ISL54048IRUZ-T is housed in a 10-lead ultra-thin quad flat no-lead (µTQFN) package with 0.4 mm pitch, measuring 1.8 mm × 1.4 mm × 0.5 mm. Pin 1 is marked by an index area in the top-left corner (viewed from top side).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive power supply input | Accepts +1.65V to +4.5V; powers internal CMOS switches and level shifters; must be applied before logic/analog signals |
| GND | Ground reference | Return path for supply and signal currents; required for ESD diode biasing and logic threshold referencing |
| IN1, IN2 | Digital control inputs | Active-high logic: '1' (≥1.4V at 3V supply) closes NO1/NO2; '0' (≤0.5V) opens both switches |
| COM1, COM2 | Analog common terminals | Bidirectional signal path endpoints; support rail-to-rail analog voltages (0V to V+) with <0.03 Ω rON flatness |
| NO1, NO2 | Normally open analog switch outputs | Connect to COMx only when corresponding INx = '1'; exhibit 62 pF OFF capacitance for minimal feedthrough at 100 kHz |
| N.C. | No-connect terminals (pins 4 & 9) | Unbonded die pads; must remain unconnected on PCB to avoid parasitic coupling or ESD path disruption |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low ON-resistance | 0.29 Ω at +4.3V enables <0.005% THD in 20 Hz–20 kHz audio paths with 600 Ω load |
| Matched channel performance | 0.06 Ω rON mismatch ensures ≤0.05 dB gain error between dual channels in stereo or differential routing |
| Low charge injection | 170 pC at 25°C minimizes voltage glitch on high-impedance nodes (e.g., SAR ADC sample capacitors) |
| High off isolation | 62 dB at 100 kHz suppresses crosstalk between active and inactive signal paths in multi-channel muxes |
| Pb-free RoHS compliance | 100% matte tin termination meets IPC/JEDEC J-STD-020 reflow standards for SnPb and Pb-free assembly |
Applications
| Mobile Phone Audio Routing | Portable Medical Sensor Multiplexing |
|---|---|
|
Use Scenario: Switching multiple microphone or speaker outputs to a shared audio codec in space-constrained smartphones. IC Role / Device Role / Timing Role: Dual NO SPST switch enabling dynamic reconfiguration of analog audio paths without ASIC GPIO limitations. Use Value: 0.29 Ω rON and 0.005% THD preserve SNR >95 dB; 40 ns switching allows real-time voice call handover between earpiece and loudspeaker. |
Use Scenario: Selecting among ECG, SpO₂, and temperature sensor outputs feeding a single ADC in handheld patient monitors. IC Role / Device Role / Timing Role: Low-leakage (±195 nA), rail-to-rail analog switch isolating high-impedance biopotential signals during channel scanning. Use Value: Sub-200 nA leakage prevents baseline drift in DC-coupled ECG front-ends; 0.03 Ω rON flatness maintains consistent gain across ±2.5 V physiological range. |
| Laptop Display Interface Expansion | Test Equipment Signal Path Selection |
|
Use Scenario: Adding HDMI or DisplayPort auxiliary channel routing capability to legacy laptop platforms with limited GPU I/O pins. IC Role / Device Role / Timing Role: Dual SPST switch extending analog video/audio signal reach while maintaining impedance matching in 50 Ω systems. Use Value: 120 MHz –3 dB bandwidth and 62 dB off-isolation prevent ghosting or crosstalk between primary and secondary display outputs. |
Use Scenario: Configuring automated test equipment (ATE) signal paths for calibration, stimulus injection, or DUT monitoring. IC Role / Device Role / Timing Role: Fast-switching (40 ns/20 ns), low-rON analog switch enabling programmable routing of precision reference voltages or sensor excitations. Use Value: 0.06 Ω rON matching ensures <10 ppm measurement repeatability; 1.8V logic compatibility simplifies FPGA control interface design. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual SPST analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL54050IRUZ-T | Pin-compatible upgrade with lower rON (0.25 Ω @ 4.3V), improved THD (0.003%), and extended –40°C to +105°C operation | Required for industrial-grade thermal environments or higher-fidelity audio where <0.005% THD is insufficient | Select ISL54050IRUZ-T when new designs demand enhanced performance margin and extended temperature range |
| TMUX1574RTER | 4-channel SPDT with 0.5 Ω rON, 1.8V logic, and 1.2V to 3.6V supply - not pin-compatible; larger 16-pin WQFN package | Suitable for designs needing more than two switches or SPDT topology, but requires PCB layout revision | Choose TMUX1574RTER only if channel count or throw configuration exceeds ISL54048IRUZ-T's dual-SPST capability |
Compared with ISL54048IRUZ-T, ISL54050IRUZ-T offers measurable improvements in rON, THD, and temperature range while maintaining drop-in compatibility; TMUX1574RTER provides greater channel flexibility at the cost of layout redesign and higher rON, making it suitable only when topology or count requirements cannot be met by the ISL54048IRUZ-T.
Availability
ISL54048IRUZ-T is available at Aetrix Electronics and suitable for battery-powered handheld equipment, portable medical instrumentation, and audio/video signal routing requiring stable component supply and long-term obsolescence management.
Supply support for ISL54048IRUZ-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 semiconductor manufacturer specializing in precision analog, power management, and interface ICs for industrial, computing, and communications markets.
The ISL54048IRUZ-T belongs to Intersil's ultra-low rON analog switch family, engineered specifically for portable battery-operated systems demanding minimal power consumption, rail-to-rail signal handling, and compact packaging.
FAQ
What is the maximum supply voltage rating for ISL54048IRUZ-T?
The absolute maximum supply voltage (V+ to GND) for ISL54048IRUZ-T is 5.5V. While the recommended operating range is +1.65V to +4.5V, the 5.5V rating accommodates transient overshoot and 10% tolerance on nominal 4.3V supplies. Exceeding 5.5V risks permanent damage per Absolute Maximum Ratings on page 3 of FN6469 Rev 1.00.
Does ISL54048IRUZ-T support rail-to-rail analog signal switching?
Yes, ISL54048IRUZ-T supports full rail-to-rail analog signal ranges from 0V to V+ across its COM and NO pins. This is confirmed in Electrical Specifications tables (pages 3–5) under "Analog Signal Range, VANALOG", which specifies 0 to V+ over all tested supply voltages (1.65V–4.5V) and temperature ranges.
Is ISL54048IRUZ-T pin-compatible with ISL54049IRUZ-T?
No, ISL54048IRUZ-T and ISL54049IRUZ-T are functionally complementary but not pin-compatible. ISL54048IRUZ-T has two normally open (NO) switches, while ISL54049IRUZ-T uses normally closed (NC) topology. Their pinouts differ: ISL54048IRUZ-T places NO1/NO2 on pins 2/6, whereas ISL54049IRUZ-T places NC1/NC2 on pins 4/8 - requiring separate PCB layouts.
What is the logic threshold behavior of ISL54048IRUZ-T at 3V supply?
At +3V supply, ISL54048IRUZ-T exhibits 1.8V logic compatibility: VINH (input high) is guaranteed ≥1.4V and VINL (input low) ≤0.5V. This is explicitly stated in the Truth Table (page 2) and Electrical Specifications (page 4), enabling direct interface with 1.8V-output microcontrollers without level shifting.
How does ISL54048IRUZ-T handle ESD protection?
ISL54048IRUZ-T features >8kV Human Body Model (HBM) ESD rating per Absolute Maximum Ratings (page 3). Internal reverse-biased ESD diodes connect each analog pin (COM, NO) and digital input (IN) to V+ and GND. For enhanced latch-up immunity during system-level IEC 61000 testing, Intersil recommends adding a 100 Ω resistor in series with the V+ pin (Figure 7, page 7).
ISL54048IRUZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 300mOhm (Typ)
- Channel-to-Channel Matching (ΔRon):
- 60mOhm
- Voltage - Supply, Single (V+):
- 1.65V ~ 4.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 40ns, 20ns
- -3db Bandwidth:
- -
- Charge Injection:
- 170pC
- Channel Capacitance (CS(off), CD(off)):
- 62pF
- Current - Leakage (IS(off)) (Max):
- 100nA
- Crosstalk:
- -85dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-UTQFN (1.8x1.4)
ISL54048IRUZ-T FAQ
1.How can I place an order for ISL54048IRUZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL54048IRUZ-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 ISL54048IRUZ-T reliable?
The price and inventory of ISL54048IRUZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL54048IRUZ-T is usually 5 days.
3.What payment methods are accepted for ISL54048IRUZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL54048IRUZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL54048IRUZ-T?
ISL54048IRUZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL54048IRUZ-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 ISL54048IRUZ-T?
For technical support, including ISL54048IRUZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL54048IRUZ-T requirements.
6.How does Aetrix verify that ISL54048IRUZ-T is sourced from the original manufacturer or authorized distributors?
All ISL54048IRUZ-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 ISL54048IRUZ-T meets industry standards.
7.What is the process for return or replacement of ISL54048IRUZ-T?
All ISL54048IRUZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL54048IRUZ-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 ISL54048IRUZ-T part is unused and in its original packaging.
Return procedure for ISL54048IRUZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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