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Renesas ISL43L711IU-T
- Part No.:
- ISL43L711IU-T
- Manufacturer:
- Renesas
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ISL43L711IU-T.pdf
- Description:
- IC SW SPST-NCX2 250MOHM 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,142
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Product details
Overview
ISL43L711IU-T from Intersil is a dual-channel, normally closed (NC), single-pole/single-throw (SPST) analog switch optimized for low-voltage portable systems. It delivers 0.16 Ω ON-resistance at 3 V, 13 ns switching times, <0.12 μW power consumption, and operates from +1.65 V to +3.6 V - enabling high-fidelity signal routing in space-constrained battery-powered audio and sensor interfaces.
For engineers reviewing the ISL43L711IU-T datasheet, ISL43L711IU-T pinout, ISL43L711IU-T application, or ISL43L711IU-T equivalent, key selection criteria include NC logic behavior, sub-0.2 Ω RON matching across channels, 8 kV HBM ESD rating, 1.8 V logic compatibility, and dual-channel differential switching in 3×3 mm TDFN or 8-pin MSOP packages.
Technical Context
The ISL43L711IU-T implements two independent bidirectional NC SPST switches using submicron CMOS process technology. Each channel features matched RON (≤0.005 Ω) and flat RON (≤0.008 Ω) over full signal range, ensuring minimal insertion loss and distortion in precision analog paths.
Its digital control interface accepts 1.8 V CMOS logic levels (VINH ≥ 1.4 V at 3 V supply) and draws ≤0.5 μA input current. Internal ESD diodes provide >8 kV HBM protection, while absolute maximum ratings support VIN, VCOM, VNO/VNC up to (V+ + 0.3 V) or –0.3 V relative to GND.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ON Resistance (3 V) | 0.16 Ω - enables <1 mV drop at 100 mA, preserving signal integrity in low-voltage sensor/codec paths |
| RON Matching | 0.005 Ω - ensures balanced gain/phase response in differential or stereo signal routing |
| Switching Time (tON/tOFF) | 13 ns - supports clean switching of audio, USB 1.1, and low-speed digital signals without glitching |
| Supply Range | +1.65 V to +3.6 V - compatible with Li-ion, Li-poly, and single-cell alkaline/battery systems |
| Power Consumption | <0.12 μW - extends battery life in always-on monitoring or standby audio routing functions |
| ESD Rating | >8 kV HBM - meets IEC 61000-4-2 Level 4 for handheld device robustness |
Pinout & Package
ISL43L711IU-T is available in an 8-lead 3×3 mm thin DFN (TDFN) package (PKG DWG L8.3x3A) and 8-lead MSOP (M8.118), both RoHS-compliant and moisture-sensitive level 1 (MSL1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Digital Control Input | Inverts logic: logic "0" (≤0.5 V) turns both switches ON; logic "1" (≥1.4 V) turns both OFF |
| 2 (NC1) | Analog Switch Normally Closed Pin 1 | Connected to COM1 when IN = 0; open when IN = 1 - used for fail-safe or default-path routing |
| 3 (COM1) | Analog Switch Common Pin 1 | Primary signal path terminal for Channel 1; bidirectional, supports rail-to-rail analog signals up to V+ |
| 4 (GND) | Ground Reference | Return path for internal logic and analog circuitry; must be low-impedance for noise immunity |
| 5 (V+) | Positive Supply Input | Single supply rail (+1.65 V to +3.6 V); powers analog switches and level-shifting logic |
| 6 (COM2) | Analog Switch Common Pin 2 | Primary signal path terminal for Channel 2; electrically isolated from COM1 |
| 7 (NC2) | Analog Switch Normally Closed Pin 2 | Connected to COM2 when IN = 0; open when IN = 1 - enables synchronized dual-channel NC operation |
| 8 (N.C.) | No Connect | Internally unconnected; must be left floating or tied to GND per layout best practices |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low RON flatness | 0.008 Ω variation over full signal range - minimizes harmonic distortion in audio and sensor front-ends |
| Dual NC configuration | Both channels default closed - ideal for safety-critical paths requiring active-low enable or power-loss continuity |
| 1.8 V logic compatibility | Operates with standard 1.8 V GPIOs at 3 V supply - eliminates level shifters in mixed-voltage SoC designs |
| Low charge injection | –125 pC - reduces voltage glitches on sensitive nodes like ADC inputs or op-amp feedback paths |
| High off isolation | 62 dB at 100 kHz - suppresses crosstalk between adjacent audio channels or sensor inputs |
Applications
| Audio Signal Routing | Portable Medical Sensor Interface |
|---|---|
Use Scenario: Switching microphone inputs between multiple codecs or routing line-out signals to headphone vs speaker amplifiers in smartphones. IC Role / Device Role / Timing Role: Dual NC SPST switch providing fail-safe default connection until firmware configures alternate paths. Use Value: 0.16 Ω RON and 0.005 Ω matching preserve SNR and channel balance; 13 ns switching avoids audible pop/click during reconfiguration. | Use Scenario: Multiplexing ECG, SpO₂, or temperature sensor outputs into a shared ADC channel in wearable health monitors. IC Role / Device Role / Timing Role: Low-leakage (<60 nA), rail-to-rail analog switch enabling accurate DC-coupled biopotential measurement. Use Value: Sub-0.2 Ω RON prevents gain error in high-impedance sensor paths; 8 kV ESD protects against user-handling discharge events. |
| Battery-Powered Test Equipment | Low-Voltage Industrial I/O Expansion |
Use Scenario: Selecting between calibration references or signal sources in handheld multimeters or oscilloscope probes. IC Role / Device Role / Timing Role: Precision SPST switch with flat RON and low charge injection ensuring traceable measurement accuracy. Use Value: 0.008 Ω RON flatness maintains consistent gain across full input range; <0.12 μW power draw extends field-use battery life. | Use Scenario: Adding configurable analog input/output channels to PLC modules or smart sensors operating from 1.8–3.3 V rails. IC Role / Device Role / Timing Role: Dual-channel analog switch enabling flexible signal conditioning and isolation in compact industrial edge nodes. Use Value: Single-supply +1.65 V to +3.6 V operation eliminates auxiliary supplies; 3×3 mm TDFN saves PCB area in dense I/O layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL43L210 | Recommended replacement per datasheet; same 8-pin TDFN/MSOP footprint, 0.18 Ω RON at 3 V, 15 ns tON | Targeted at new designs; improved thermal resistance (θJA = 95°C/W in TDFN vs 110°C/W for ISL43L711IU-T) | Select ISL43L210 for production designs requiring extended lifecycle support and marginally better thermal performance. |
| TMUX1574 | TI part: dual NC SPST, 0.5 Ω RON at 3.3 V, 25 ns tON, 1.2 V logic compatible | Higher RON and slower switching; supports lower logic voltages but less suitable for ultra-low-distortion audio | Choose TMUX1574 only if 1.2 V logic interface is mandatory and RON tolerance >0.3 Ω is acceptable. |
Compared with ISL43L711IU-T, ISL43L210 offers direct design continuity with tighter thermal specs and identical pinout, while TMUX1574 provides broader logic voltage support at the cost of higher conduction loss and reduced bandwidth - making ISL43L210 the preferred upgrade path for legacy ISL43L711IU-T designs.
Availability
ISL43L711IU-T is available at Aetrix Electronics and suitable for battery-powered handheld equipment, portable medical devices, and low-voltage industrial I/O expansion requiring stable component supply and long-term manufacturability.
Supply support for ISL43L711IU-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, power management, and interface ICs for industrial, computing, and communications markets.
The ISL43L711IU-T belongs to Intersil's ultra-low-RON analog switch family, designed specifically for high-fidelity, low-power signal routing in space-constrained portable electronics where rail-to-rail operation and NC default behavior are critical.
FAQ
What is the default state of the ISL43L711IU-T switches?
The ISL43L711IU-T features two normally closed (NC) SPST switches. When the IN pin is logic low (≤0.5 V), both NC1–COM1 and NC2–COM2 paths are closed. When IN is logic high (≥1.4 V at 3 V supply), both paths open. This NC behavior ensures fail-safe connectivity in power-loss or reset conditions - a key requirement in ISL43L711IU-T deployments for audio and medical sensor routing.
Does the ISL43L711IU-T support rail-to-rail analog signal operation?
Yes, the ISL43L711IU-T supports rail-to-rail analog signal operation from 0 V to V+, where V+ ranges from +1.65 V to +3.6 V. Its analog signal range (VANALOG) is specified as 0 to V+ across all temperatures, and internal ESD diodes clamp signals to within safe limits. This capability makes ISL43L711IU-T suitable for DC-coupled sensor interfaces and audio paths without external biasing.
What package options are available for the ISL43L711IU-T?
The ISL43L711IU-T is offered in two RoHS-compliant packages: an 8-lead 3×3 mm thin DFN (TDFN, drawing L8.3x3A) and an 8-lead MSOP (drawing M8.118). Both packages have identical pinouts and electrical specifications. The TDFN variant provides superior thermal performance (θJA = 110°C/W) and smaller footprint, while the MSOP offers easier manual assembly and test probing - critical considerations for ISL43L711IU-T prototyping and low-volume production.
How does the ISL43L711IU-T handle ESD protection?
The ISL43L711IU-T incorporates internal ESD protection diodes on all analog and digital pins, rated to >8 kV per Human Body Model (HBM). These diodes connect each pin to V+ and GND, clamping transient voltages during handling or system-level ESD events. To maintain this protection, V+ must be applied before any analog or digital signals - a requirement explicitly defined in the ISL43L711IU-T datasheet for reliable field operation.
Is the ISL43L711IU-T pin-compatible with other members of the ISL43L71X family?
No, the ISL43L711IU-T is not pin-compatible with ISL43L710IU-T (dual NO) or ISL43L712IU-T (NO/NC with INH), despite sharing the same 8-pin TDFN and MSOP footprints. Pin 2 is NC1 in ISL43L711IU-T but NO1 in ISL43L710IU-T and NO1 in ISL43L712IU-T; pin 7 is NC2 in ISL43L711IU-T but NC2 in ISL43L712IU-T and NO2 in ISL43L710IU-T. Therefore, ISL43L711IU-T requires dedicated layout - it cannot be substituted without board revision.
ISL43L711IU-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 250mOhm
- Channel-to-Channel Matching (ΔRon):
- 5mOhm
- Voltage - Supply, Single (V+):
- 1.65V ~ 3.6V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 25ns, 25ns
- -3db Bandwidth:
- -
- Charge Injection:
- -125pC
- Channel Capacitance (CS(off), CD(off)):
- 182pF, 182pF
- Current - Leakage (IS(off)) (Max):
- 3nA
- Crosstalk:
- -94dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
ISL43L711IU-T FAQ
1.How can I place an order for ISL43L711IU-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL43L711IU-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 ISL43L711IU-T reliable?
The price and inventory of ISL43L711IU-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL43L711IU-T is usually 5 days.
3.What payment methods are accepted for ISL43L711IU-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL43L711IU-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL43L711IU-T?
ISL43L711IU-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL43L711IU-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 ISL43L711IU-T?
For technical support, including ISL43L711IU-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL43L711IU-T requirements.
6.How does Aetrix verify that ISL43L711IU-T is sourced from the original manufacturer or authorized distributors?
All ISL43L711IU-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 ISL43L711IU-T meets industry standards.
7.What is the process for return or replacement of ISL43L711IU-T?
All ISL43L711IU-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL43L711IU-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 ISL43L711IU-T part is unused and in its original packaging.
Return procedure for ISL43L711IU-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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