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Renesas ISL54066IRUZ-T
- Part No.:
- ISL54066IRUZ-T
- Manufacturer:
- Renesas
- Package:
- 10-UFQFN
- Datasheet:
-
ISL54066IRUZ-T.pdf
- Description:
- IC SWITCH SPST-NOX2 1OHM 10UTQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,649
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Product details
Overview
ISL54066IRUZ-T from Intersil is a dual SPST normally open analog switch with T-switch architecture, designed for single-supply operation from +1.8V to +6.5V. It delivers 1 Ω rON at 4.3V, 40ns tON/30ns tOFF, 80dB off-isolation, and supports negative signal swing down to 6.5V below V+. It enables low-distortion audio/video routing in space-constrained portable equipment.
For engineers reviewing the ISL54066IRUZ-T datasheet, ISL54066IRUZ-T pinout, ISL54066IRUZ-T application, or ISL54066IRUZ-T equivalent, key selection criteria include verified negative-swing capability (VIN = V+ − 6.5V), rON flatness ≤0.27 Ω, GND1/GND2 shunt resistor configuration, µTQFN-10 package thermal resistance (θJA = 155°C/W), and 1.8V logic compatibility at 3V supply.
Technical Context
The ISL54066IRUZ-T implements a T-switch topology that decouples input/output paths during OFF state, achieving >70dB off-isolation and <−80dB crosstalk at 1MHz. Its internal level shifters translate 1.8V-compatible logic inputs (VCTL_H ≥1.4V at 3V) to full-rail CMOS gate drive across the 1.8–6.5V supply range.
Three dedicated ground pins-GND1 (10kΩ INx shunt), GND2 (200kΩ OUTx shunt), and GND3 (IC reference)-enable star-grounding for optimal isolation. Signal integrity is maintained via low charge injection (≤200pC), 30MHz −3dB bandwidth, and THD+N ≤0.04% at 20Hz–20kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| rON @ 4.3V | 1 Ω - Enables minimal insertion loss in 50Ω signal paths; critical for high-fidelity audio switching |
| tON/tOFF @ 4.3V | 40ns/30ns - Supports fast multiplexing in portable test equipment without timing skew |
| Off-isolation | ≥70dB @ 1MHz - Blocks leakage between active and inactive channels in multi-source systems |
| Negative swing | VIN down to (V+ − 6.5V) - Allows AC-coupled signals with DC offsets to pass unclipped |
| rON flatness | ≤0.27 Ω - Ensures consistent gain across full analog voltage range, reducing harmonic distortion |
| Supply range | +1.8V to +6.5V - Compatible with Li-ion battery discharge profiles and 5V ±10% rails |
| ESD rating | >6kV HBM - Protects against handling damage in assembly and field service environments |
Pinout & Package
ISL54066IRUZ-T uses a 10-lead µTQFN package (1.8mm × 1.4mm, 0.5mm pitch) with exposed thermal pad. Pin 1 identifier is marked on top surface; recommended land pattern per L10.1.8x1.4A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply rail | Single power source for analog switches and internal logic; must be applied before signal inputs |
| GND1 | Input shunt ground | Reference for 10kΩ resistors tied to IN1/IN2; float to disable input discharge path |
| GND2 | Output shunt ground | Reference for 200kΩ resistors tied to OUT1/OUT2; float to disable output bleed path |
| GND3 | Main IC ground | Primary return path for all internal circuitry; must connect to system star ground point |
| CTL1 / CTL2 | Digital control inputs | CMOS-compatible logic; "1" closes respective switch, "0" opens it; thresholds scale with V+ |
| IN1 / IN2 | Analog inputs | Signal entry points with integrated 10kΩ-to-GND1 shunts; support (V+ − 6.5V) to V+ range |
| OUT1 / OUT2 | Analog outputs | Switched signal outputs with 200kΩ-to-GND2 shunts; maintain same voltage range as inputs |
Key Features
| Feature | Design Value |
|---|---|
| T-switch architecture | Enables >70dB off-isolation by isolating input/output terminals when OFF, minimizing feedthrough |
| 10kΩ/200kΩ shunt resistors | Prevents floating node charge buildup on INx/OUTx; configurable via GND1/GND2 connection |
| 1.8V logic compatibility | Accepts 1.4V logic-high threshold at 3V supply, enabling direct interface with low-voltage microcontrollers |
| Low power consumption | 1.64µA max I+ at full temperature range reduces battery drain in always-on portable devices |
| RoHS-compliant e4 termination | NiPdAu plating ensures reliable solder joint formation with both SnPb and Pb-free reflow profiles |
Applications
| Cellular/Mobile Phones | Portable Test Equipment |
|---|---|
Use Scenario: Routing microphone, speaker, and headset signals in multi-mode smartphones with shared analog front-end resources. IC Role / Device Role / Timing Role: Dual SPST switch managing bidirectional audio paths while maintaining signal fidelity across varying battery voltages. Use Value: 1 Ω rON and ≤0.27 Ω flatness minimize insertion loss and THD+N (<0.04%), preserving voice clarity. | Use Scenario: Multiplexing sensor inputs or calibration references in handheld DMMs and signal generators. IC Role / Device Role / Timing Role: High-speed analog switch enabling sub-100ns channel switching without settling delay or cross-talk interference. Use Value: 40ns tON/30ns tOFF and <−80dB crosstalk ensure accurate, isolated measurements across multiple channels. |
| Medical Monitoring Devices | Professional Audio Interfaces |
Use Scenario: Selecting ECG electrode inputs or biopotential amplifiers in compact patient-worn monitors. IC Role / Device Role / Timing Role: Low-leakage, high-isolation switch supporting DC-coupled biosignal acquisition with minimal baseline drift. Use Value: Negative swing capability (VIN = V+ − 6.5V) accommodates electrode offset voltages without clipping or rail dependency. | Use Scenario: Switching line-level analog audio between inputs/outputs in USB-powered studio interfaces. IC Role / Device Role / Timing Role: Low-distortion analog switch handling balanced/unbalanced signals with wide dynamic range. Use Value: 30MHz −3dB bandwidth and 0.015% THD+N at 20Hz–20kHz preserve transient response and harmonic accuracy. |
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 |
|---|---|---|---|
| MAX4676ETA+ | Higher rON (3.5Ω @ 5V), no negative swing support, 10-pin TDFN only | Not suitable for AC-coupled or bipolar signal paths requiring VIN < GND | Select ISL54066IRUZ-T when negative signal swing or sub-2Ω rON is required |
| TMUX1574RTER | Lower rON (0.5Ω @ 5V), supports VIN to −5.5V, but requires dual supply (V+/V−) | Needs additional negative rail generation; incompatible with single-supply portable designs | Choose ISL54066IRUZ-T for true single-supply negative swing without auxiliary rails |
Compared with MAX4676ETA+ and TMUX1574RTER, ISL54066IRUZ-T uniquely combines single-supply operation, 6.5V negative swing headroom, and 1Ω rON in a 1.8×1.4mm µTQFN-making it optimal for ultra-compact, battery-powered systems where rail simplicity and signal integrity are co-prioritized.
Availability
ISL54066IRUZ-T is available at Aetrix Electronics and suitable for cellular handsets, portable medical monitors, handheld test instruments, and professional audio interfaces requiring stable component supply across extended production lifecycles.
Supply support for ISL54066IRUZ-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, designs high-performance analog and mixed-signal ICs for power management, precision analog, and interface applications.
The ISL54066 product line targets portable and battery-operated systems needing low-voltage, low-power analog switching with robust signal integrity and space-efficient packaging.
FAQ
What is the maximum negative signal voltage supported by the ISL54066IRUZ-T?
The ISL54066IRUZ-T supports analog input voltages down to (V+ − 6.5V). For example, with V+ = 3.3V, the minimum input is −3.2V; with V+ = 5.0V, it is −1.5V. This capability is enabled by internal circuitry that extends the signal range below ground without external biasing, making ISL54066IRUZ-T suitable for AC-coupled audio and sensor interfaces.
Does the ISL54066IRUZ-T require separate ground connections for optimal performance?
Yes. The ISL54066IRUZ-T has three distinct ground terminals: GND1 (input shunt reference), GND2 (output shunt reference), and GND3 (main IC ground). For maximum off-isolation, these must be connected to a common star ground point-not daisy-chained-to prevent ground current coupling. Floating GND1 or GND2 disables their respective 10kΩ/200kΩ shunt resistors, which may be necessary in high-impedance sensing paths.
What is the typical on-resistance matching between the two switches in the ISL54066IRUZ-T?
The ISL54066IRUZ-T guarantees rON matching of ≤10mΩ across channels at 4.3V supply and 100mA load. This tight matching ensures balanced signal attenuation in differential or stereo paths, critical for applications like headphone switching where channel imbalance would cause audible artifacts. Matching is specified over full temperature range (−40°C to +85°C).
Can the ISL54066IRUZ-T operate with a 1.8V logic supply while powered from a higher V+?
Yes. The ISL54066IRUZ-T digital inputs are 1.8V logic-compatible when V+ = 3.0V (VCTL_L ≤ 0.5V, VCTL_H ≥ 1.4V). At higher V+ (e.g., 5V), logic thresholds scale accordingly (VCTL_H ≥ 2.4V). The device draws only ~1µA supply current when CTL inputs are driven to mid-rail, minimizing power overhead in mixed-voltage systems using ISL54066IRUZ-T.
Is the ISL54066IRUZ-T pin-compatible with other variants in the ISL54066 family?
Yes. The ISL54066IRUZ-T shares identical pinout and functionality with ISL54066IRZ and ISL54066IRZ-T, differing only in package (µTQFN vs. TDFN) and reel packaging. All variants use the same 10-pin topography, electrical specifications, and truth table. Designers may substitute ISL54066IRUZ-T into existing layouts using the µTQFN footprint (L10.1.8x1.4A), provided thermal and PCB stack-up constraints are verified.
ISL54066IRUZ-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):
- 1Ohm
- Channel-to-Channel Matching (ΔRon):
- 5mOhm
- Voltage - Supply, Single (V+):
- 1.8V ~ 6.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 39ns, 27ns
- -3db Bandwidth:
- 30MHz
- Charge Injection:
- 170pC
- Channel Capacitance (CS(off), CD(off)):
- 33pF
- Current - Leakage (IS(off)) (Max):
- -
- Crosstalk:
- -80dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-UTQFN (1.8x1.4)
ISL54066IRUZ-T FAQ
1.How can I place an order for ISL54066IRUZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL54066IRUZ-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 ISL54066IRUZ-T reliable?
The price and inventory of ISL54066IRUZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL54066IRUZ-T is usually 5 days.
3.What payment methods are accepted for ISL54066IRUZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL54066IRUZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL54066IRUZ-T?
ISL54066IRUZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL54066IRUZ-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 ISL54066IRUZ-T?
For technical support, including ISL54066IRUZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL54066IRUZ-T requirements.
6.How does Aetrix verify that ISL54066IRUZ-T is sourced from the original manufacturer or authorized distributors?
All ISL54066IRUZ-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 ISL54066IRUZ-T meets industry standards.
7.What is the process for return or replacement of ISL54066IRUZ-T?
All ISL54066IRUZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL54066IRUZ-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 ISL54066IRUZ-T part is unused and in its original packaging.
Return procedure for ISL54066IRUZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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