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Home > Products > Integrated Circuits (ICs) > Interface > Analog Switches, Multiplexers, Demultiplexers

Renesas ISL43L710IU-T

Name: ISL43L710IU-T
Brand: Renesas
SKU: ISL43L710IU-T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ISL43L710IU-T

Manufacturer:: Renesas

Category:: Analog Switches, Multiplexers, Demultiplexers

Package:: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Datasheet:: ISL43L710IU-T.pdf

Description:: IC SW SPST-NOX2 250MOHM 8MSOP

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Product details

Overview

ISL43L710IU-T from Intersil is a dual-channel, normally open (NO), single-pole/single-throw (SPST) analog switch optimized for low-voltage, low-distortion signal routing in battery-powered systems. It delivers 0.16 Ω ON-resistance at 3 V, 13 ns switching times, <0.12 μW quiescent power, and operates from +1.65 V to +3.6 V - enabling precision audio path switching in mobile phone baseband ASIC expansion.

For engineers reviewing the ISL43L710IU-T datasheet, ISL43L710IU-T pinout, ISL43L710IU-T application, or ISL43L710IU-T equivalent, key selection criteria include verified R_ON matching (0.005 Ω), R_ON flatness (0.008 Ω), 1.8 V logic compatibility, ESD robustness (>8 kV HBM), and dual NO configuration confirmed for differential SPST use in space-constrained portable designs.

Technical Context

The ISL43L710IU-T implements a submicron CMOS process with 114 transistors, supporting bidirectional analog signal flow across two independent NO switches. Its internal level shifter translates 1.8 V CMOS logic inputs (V_INH ≥ 1.4 V, V_INL ≤ 0.5 V at 3 V supply) into full-rail gate drive for the analog switches, ensuring consistent turn-on/turn-off behavior across the 1.65–3.6 V supply range.

Each channel features matched R_ON and ultra-flat R_ON vs. signal voltage (0.008 Ω variation), minimizing harmonic distortion in audio and sensor signal paths. The device lacks an inhibit pin - unlike ISL43L712 - and does not support simultaneous channel disable; control is per-switch via dedicated IN pins.

Key Specifications

Parameter	Value and Actual Design Meaning
ON Resistance (R_ON)	0.16 Ω at 3 V supply - enables <0.01% insertion loss in 50 Ω audio paths and supports 100 mA continuous analog current per channel.
R_ON Matching	0.005 Ω max difference between channels - ensures balanced differential signal integrity and minimal common-mode error in instrumentation interfaces.
Switching Time (t_ON/t_OFF)	13 ns at 3 V - supports clean digital control of analog signals up to ~27 MHz without edge-induced glitches.
Supply Range	+1.65 V to +3.6 V - allows direct interface with Li-ion battery voltage (3.0–3.6 V) and 1.8 V logic domains without level shifters.
Logic Compatibility	1.8 V CMOS input thresholds (V_INH ≥ 1.4 V, V_INL ≤ 0.5 V) - guarantees reliable switching with standard low-voltage microcontrollers and baseband ICs.
ESD Rating	>8 kV HBM - provides robust handling margin during PCB assembly and end-user device integration without external protection.

Pinout & Package

ISL43L710IU-T is available in an 8-lead MSOP (M8.118) and 8-lead 3×3 mm TDFN (L8.3x3A) package. Both packages feature exposed thermal pads and are RoHS-compliant (Pb-free).

Pin/Terminal	Circuit Role	Design Meaning
V+	Positive supply rail	Must be applied before any analog/digital signals; sets analog signal range (0 V to V+) and powers internal level shifter and CMOS switches.
GND	Ground reference	Common return for analog signal paths, digital logic, and ESD protection diodes; must be low-impedance for leakage-sensitive applications.
IN1, IN2	Digital control inputs	Active-high logic inputs controlling SW1 and SW2 independently; each drives one NO switch (ON when logic high).
COM1, COM2	Analog common terminals	Input/output nodes for bidirectional signal routing; connected to NO pins when corresponding IN is high.
NO1, NO2	Analog normally-open switch terminals	Signal outputs that connect to COM1/COM2 only when respective IN is high; remain open-circuit otherwise.
N.C.	No-connect terminal	Internally unconnected; must be left floating or tied to GND per layout best practices - no electrical function.

Key Features

Feature	Design Value
Ultra-low R_ON flatness	0.008 Ω variation over full analog signal range - preserves linearity in precision sensor and audio signal conditioning paths.
Dual independent NO configuration	Two isolated SPST switches with separate IN pins - enables flexible signal routing (e.g., stereo channel enable, dual ADC input selection) without cross-talk.
Sub-μW quiescent power	<0.12 μW at 3 V - extends battery life in always-on portable medical sensors and wearable devices.
1.8 V logic-compatible inputs	Valid high/low thresholds defined at 3 V supply (V_INH ≥ 1.4 V, V_INL ≤ 0.5 V) - eliminates need for external level translators in mixed-voltage SoC interfaces.
High-frequency isolation	62 dB OFF isolation at 100 kHz - suppresses RF coupling and clock feedthrough in mixed-signal handheld platforms.

Applications

Mobile Baseband Expansion	Portable Medical Sensor Interface
Use Scenario: Expanding limited analog GPIO count on cellular baseband ASICs to route additional microphone, speaker, or headset signals. IC Role / Device Role / Timing Role: Dual SPST analog switch providing low-R_ON, low-distortion signal path extension under 1.8 V logic control. Use Value: Enables ASIC functionality reuse without redesign; 0.16 Ω R_ON and 13 ns t_ON preserve audio fidelity and timing margins in 3.6 V battery-powered phones.	Use Scenario: Selecting between multiple biopotential sensor inputs (ECG, EEG) into a shared low-noise amplifier and ADC front-end. IC Role / Device Role / Timing Role: Precision analog multiplexer with matched R_ON and ultra-low leakage (<80 nA) for DC-coupled biomedical signal acquisition. Use Value: Minimizes offset drift and gain error across channels; 0.005 Ω R_ON matching ensures consistent sensor calibration across dual-path configurations.
Low-Voltage Audio Routing	Space-Constrained Test Equipment
Use Scenario: Switching stereo line-level audio signals in Bluetooth headsets or hearing aids powered by single-cell Li-ion batteries. IC Role / Device Role / Timing Role: Bidirectional analog switch operating down to 1.65 V supply while maintaining <0.26 Ω R_ON at 1.8 V. Use Value: Supports full dynamic range audio transmission with <0.02% THD+N; small 3×3 mm TDFN footprint saves PCB area in miniaturized wearables.	Use Scenario: Signal path selection in handheld oscilloscope probes or portable multimeter front-ends requiring fast, low-leakage switching. IC Role / Device Role / Timing Role: High-speed, low-R_ON SPST switch enabling rapid reconfiguration of measurement ranges and input topologies. Use Value: 13 ns switching time allows real-time signal path changes without settling delays; 182 pF COFF minimizes capacitive loading on sensitive probe circuits.

Mobile Baseband Expansion

Portable Medical Sensor Interface

Use Scenario: Expanding limited analog GPIO count on cellular baseband ASICs to route additional microphone, speaker, or headset signals.

IC Role / Device Role / Timing Role: Dual SPST analog switch providing low-R_ON, low-distortion signal path extension under 1.8 V logic control.

Use Value: Enables ASIC functionality reuse without redesign; 0.16 Ω R_ON and 13 ns t_ON preserve audio fidelity and timing margins in 3.6 V battery-powered phones.

Use Scenario: Selecting between multiple biopotential sensor inputs (ECG, EEG) into a shared low-noise amplifier and ADC front-end.

IC Role / Device Role / Timing Role: Precision analog multiplexer with matched R_ON and ultra-low leakage (<80 nA) for DC-coupled biomedical signal acquisition.

Use Value: Minimizes offset drift and gain error across channels; 0.005 Ω R_ON matching ensures consistent sensor calibration across dual-path configurations.

Low-Voltage Audio Routing

Space-Constrained Test Equipment

Use Scenario: Switching stereo line-level audio signals in Bluetooth headsets or hearing aids powered by single-cell Li-ion batteries.

IC Role / Device Role / Timing Role: Bidirectional analog switch operating down to 1.65 V supply while maintaining <0.26 Ω R_ON at 1.8 V.

Use Value: Supports full dynamic range audio transmission with <0.02% THD+N; small 3×3 mm TDFN footprint saves PCB area in miniaturized wearables.

Use Scenario: Signal path selection in handheld oscilloscope probes or portable multimeter front-ends requiring fast, low-leakage switching.

IC Role / Device Role / Timing Role: High-speed, low-R_ON SPST switch enabling rapid reconfiguration of measurement ranges and input topologies.

Use Value: 13 ns switching time allows real-time signal path changes without settling delays; 182 pF COFF minimizes capacitive loading on sensitive probe circuits.

Equivalent & Alternatives

The following parts are listed as comparable options for similar analog switch applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ISL43L210	Direct replacement recommended by Intersil; same dual NO configuration, identical 8-pin MSOP/TDFN footprint, and improved R_ON flatness (0.004 Ω typ).	Designed for newer designs; supports same 1.65–3.6 V supply but with enhanced 1.2 V logic compatibility.	Select ISL43L210 for new designs requiring extended logic voltage margin and tighter R_ON matching.
TMUX1574	Single-supply, dual NO SPST with 0.5 Ω R_ON at 3.3 V; higher R_ON, wider supply (1.08–3.6 V), and integrated ESD protection (±4 kV).	Targeted at industrial I/O modules; lacks sub-μW quiescent power and R_ON matching spec.	Choose TMUX1574 only if broader supply range or higher ESD tolerance outweighs R_ON and matching requirements.

Compared with ISL43L710IU-T, ISL43L210 offers identical pinout and improved R_ON flatness for next-generation portable designs, while TMUX1574 trades lower R_ON for wider voltage operation and reduced ESD robustness - making ISL43L710IU-T optimal for legacy battery-powered audio and sensor routing where ultra-low distortion and minimal power are critical.

Availability

ISL43L710IU-T is available at Aetrix Electronics and suitable for mobile baseband expansion, portable medical sensor interfaces, low-voltage audio routing, and space-constrained test equipment requiring stable component supply and long-term production continuity.

Supply support for ISL43L710IU-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 ISL43L710IU-T belongs to the ISL43L71x family of ultra-low-R_ON analog switches engineered specifically for battery-powered portable equipment where minimal insertion loss, fast switching, and single-supply operation are essential.

FAQ

What is the maximum supply voltage rating for the ISL43L710IU-T?

The ISL43L710IU-T has an absolute maximum supply voltage (V+ to GND) of 4.7 V. Its operational range is +1.65 V to +3.6 V. Exceeding 4.7 V risks permanent damage due to internal ESD diode forward conduction. The 4.7 V rating accommodates 10% tolerance on 3.6 V supplies and transient noise spikes, as confirmed in the Absolute Maximum Ratings table on page 3 of FN6092 Rev 3.00.

Does the ISL43L710IU-T support bidirectional analog signal flow?

Yes, the ISL43L710IU-T supports fully bidirectional analog signal flow across both SPST switches. Each channel (COM1↔NO1 and COM2↔NO2) conducts equally in either direction when enabled, as stated in the "Detailed Description" section (page 6) and verified by its symmetric R_ON specification and lack of polarity-dependent parameters in the Electrical Specifications tables.

What is the typical charge injection value for the ISL43L710IU-T at 3 V supply?

The typical charge injection (Q) for the ISL43L710IU-T is –125 pC at V+ = 3 V, measured with CL = 1.0 nF and RG = 0 Ω (page 4, Electrical Specifications). This low value minimizes voltage glitches on high-impedance nodes such as sample-and-hold capacitors or sensor bias networks, directly supporting precision data acquisition applications.

Is the ISL43L710IU-T pin-compatible with the ISL43L712IU-T?

No, the ISL43L710IU-T is not pin-compatible with the ISL43L712IU-T. While both use 8-lead MSOP/TDFN packages, their pin functions differ: ISL43L710IU-T uses pins 3 and 7 as IN1 and IN2, whereas ISL43L712IU-T uses pin 3 as INH (inhibit) and pin 7 as IN (shared control). The Truth Table and Pinouts on pages 2 and 4 of FN6092 confirm distinct signal assignments.

What is the thermal resistance (θ_JA) of the ISL43L710IU-T in the MSOP package?

The thermal resistance θ_JA for the ISL43L710IU-T in the 8-lead MSOP package is 190 °C/W, measured under standard JEDEC conditions (low effective thermal conductivity test board in free air), as specified in the Thermal Information table on page 3 of FN6092 Rev 3.00. This value guides heatsinking decisions for high-current operation near the 300 mA continuous limit.

ISL43L710IU-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):: 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

ISL43L710IU-T FAQ

1.How can I place an order for ISL43L710IU-T through Aetrix?

Please submit a Request for Quotation (RFQ) for ISL43L710IU-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 ISL43L710IU-T reliable?

The price and inventory of ISL43L710IU-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL43L710IU-T is usually 5 days.

3.What payment methods are accepted for ISL43L710IU-T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL43L710IU-T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ISL43L710IU-T?

ISL43L710IU-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ISL43L710IU-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 ISL43L710IU-T?

For technical support, including ISL43L710IU-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL43L710IU-T requirements.

6.How does Aetrix verify that ISL43L710IU-T is sourced from the original manufacturer or authorized distributors?

All ISL43L710IU-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 ISL43L710IU-T meets industry standards.

7.What is the process for return or replacement of ISL43L710IU-T?

All ISL43L710IU-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL43L710IU-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 ISL43L710IU-T part is unused and in its original packaging.

Return procedure for ISL43L710IU-T:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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