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Renesas ISL43L220IR-T
- Part No.:
- ISL43L220IR-T
- Manufacturer:
- Renesas
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
ISL43L220IR-T.pdf
- Description:
- IC SWITCH SPDTX2 350MOHM 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,597
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Product details
Overview
ISL43L220IR-T from Intersil is a dual SPDT analog switch optimized for ultra-low on-resistance (0.22 Ω at 4.3 V), fast switching (tON = 11 ns, tOFF = 5 ns), and single-supply operation from +1.1 V to +4.5 V. It serves as a bidirectional signal path selector in space-constrained, battery-powered systems such as cellular handsets and portable medical devices where minimal insertion loss and logic-compatible control are critical.
For engineers reviewing the ISL43L220IR-T datasheet, ISL43L220IR-T pinout, ISL43L220IR-T application, or ISL43L220IR-T equivalent, key selection criteria include guaranteed break-before-make timing, RON matching (≤0.03 Ω), RON flatness (≤0.03 Ω), ESD robustness (>9 kV HBM), and compatibility with 1.8 V logic under +3 V supply.
Technical Context
The ISL43L220IR-T implements two independent SPDT switches-each with one normally open (NO) and one normally closed (NC) path-configured as a dual 2:1 multiplexer. Its submicron CMOS process enables precise channel matching and low charge injection (95 pC typical at 4.3 V).
Internal level shifters translate 1.8 V logic inputs into full-rail gate drive across the entire 1.1–4.5 V supply range, ensuring reliable switching without external biasing. The device guarantees break-before-make operation (tD ≥ 2 ns) and supports analog signal ranges from 0 V to V+, with leakage currents limited to ±110 nA over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ON Resistance (RON) | 0.22 Ω at V+ = 4.3 V - enables <0.01 dB insertion loss in 50 Ω audio/video paths |
| Switching Speeds | tON = 11 ns / tOFF = 5 ns at V+ = 4.3 V - supports >30 MHz signal bandwidth with <0.1 dB gain flatness |
| Supply Range | +1.1 V to +4.5 V single supply - operates directly from Li-ion cell (3.0–4.2 V) or LDO-regulated 1.2/1.8/3.3 V rails |
| RON Matching | ≤0.03 Ω between channels - ensures ≤0.03 dB amplitude mismatch in differential or stereo signal routing |
| ESD Rating (HBM) | >9 kV - eliminates need for external TVS protection in handheld ESD-prone interfaces |
| Logic Compatibility | 1.8 V CMOS input thresholds (VINH ≥ 1.4 V, VINL ≤ 0.5 V at 3 V supply) - interfaces directly with modern baseband/GPU GPIOs |
| Leakage Current | ±110 nA max (full temp range) - preserves signal integrity in high-impedance sensor or medical front-end circuits |
Pinout & Package
Package: 10-lead 3×3 mm thin DFN (L10.3x3A), exposed thermal pad, RoHS-compliant matte tin finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive power supply input | Supplies internal CMOS switches and level shifters; must be powered before any analog/digital signals to prevent ESD diode conduction |
| GND | Ground reference | Return path for analog signal current and digital logic; requires low-inductance connection to minimize ground bounce during fast switching |
| IN1, IN2 | Digital control inputs | Accept 1.8 V logic levels; drive internal switches with guaranteed break-before-make timing when toggled |
| COM1, COM2 | Analog common terminals | Signal input/output ports; bidirectional; support full rail-to-rail analog swing (0 V to V+) |
| NO1, NO2 | Normally open analog outputs | Connect to COMx only when corresponding INx = logic high; used for active-path selection in mux configurations |
| NC1, NC2 | Normally closed analog outputs | Connect to COMx only when corresponding INx = logic low; provide default signal path during power-up or logic reset |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low RON flatness | 0.03 Ω variation across full analog signal range - maintains consistent THD (<0.003%) and channel balance in audio routing |
| Guaranteed break-before-make | Minimum 2 ns delay prevents momentary short-circuit between NO/NC paths - essential for avoiding signal glitches in multiplexed sensor or ADC inputs |
| Low charge injection | 95 pC typical at 4.3 V - minimizes voltage step artifacts at COMx during switching, critical for precision DC-coupled applications |
| High off-isolation | 68 dB at 100 kHz in 50 Ω system - suppresses crosstalk between active and inactive signal paths in multi-channel audio/video systems |
| Wide supply compatibility | Operates down to +1.1 V - enables direct integration with ultra-low-power microcontrollers and energy-harvesting subsystems |
Applications
| Cellular Handset Audio Routing | Portable Medical Sensor Multiplexing |
|---|---|
Use Scenario: Selecting between multiple microphone inputs or speaker outputs in a compact smartphone PCB layout. IC Role / Device Role / Timing Role: Dual SPDT analog switch providing bidirectional, low-distortion signal path selection under 1.8 V GPIO control. Use Value: 0.22 Ω RON and 0.03 Ω matching preserve SNR and stereo imaging; 3×3 mm DFN saves >40% board area vs. SOIC alternatives. |
Use Scenario: Time-division multiplexing of ECG, SpO₂, and temperature sensor signals into a shared ADC channel. IC Role / Device Role / Timing Role: Low-leakage (±110 nA), break-before-make analog switch enabling accurate DC-coupled biomedical signal acquisition. Use Value: Sub-100 pC charge injection prevents baseline wander; 1.1 V minimum supply extends battery life in wearable monitors. |
| Laptop USB-C Alternate Mode Switching | Handheld Test Equipment Signal Path Control |
Use Scenario: Routing DisplayPort or PCIe lanes through a USB-C connector while maintaining signal integrity up to 5 Gbps. IC Role / Device Role / Timing Role: High-bandwidth analog switch with 120 MHz -3 dB bandwidth and 68 dB off-isolation at 100 kHz. Use Value: 11 ns tON/5 ns tOFF enables clean hot-plug detection; low RON flatness minimizes eye diagram degradation. |
Use Scenario: Configuring input attenuation, coupling mode (AC/DC), and signal path routing in a pocket-sized oscilloscope or multimeter. IC Role / Device Role / Timing Role: Precision analog switch supporting 0–4.5 V signal range and <0.003% THD for metrology-grade measurements. Use Value: 0.03 Ω RON matching ensures calibrated gain accuracy; >9 kV HBM withstands field ESD events during probe handling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4684ETA+ | Pin-compatible; RON = 0.35 Ω (typ) at 3 V; tON/tOFF = 15/7 ns; no 1.1 V operation | Suitable for 2.7–3.6 V systems only; higher RON increases insertion loss in RF/audio paths | Select when legacy MAX4684 footprint reuse is required and supply is ≥2.7 V |
| ISL43L210IRZ-T | Same family; single SPDT; RON = 0.22 Ω at 4.3 V; identical specs except channel count | Used where only one switch pair is needed; reduces BOM count in simpler designs | Select when design requires only one SPDT path and board space allows smaller 8-lead DFN |
Compared with MAX4684ETA+ and ISL43L210IRZ-T, the ISL43L220IR-T uniquely delivers dual SPDT functionality with 1.1 V operability, lowest RON, and tightest channel matching-making it optimal for next-generation ultra-low-voltage, high-fidelity portable systems where both performance and supply flexibility are non-negotiable.
Availability
ISL43L220IR-T is available at Aetrix Electronics and suitable for cellular handset audio routing, portable medical sensor multiplexing, and laptop USB-C alternate mode switching requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for ISL43L220IR-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 high-reliability industrial and portable applications.
The ISL43L220IR-T belongs to Intersil's ultra-low-voltage analog switch product line, engineered specifically for battery-powered handheld equipment where minimal RON, nanosecond switching, and sub-2 V operation are mandatory.
FAQ
What is the minimum operating voltage for the ISL43L220IR-T?
The ISL43L220IR-T operates down to +1.1 V, enabling direct use with single-cell lithium-polymer batteries and ultra-low-power microcontrollers. At this voltage, RON rises to 2.6 Ω (typ), tON extends to 30 ns, and digital input thresholds adjust to VINL ≤ 0.3 V and VINH ≥ 0.6 V. Full specification compliance requires verification per the 1.1 V electrical table in the ISL43L220IR-T datasheet.
Is the ISL43L220IR-T pin-compatible with the MAX4684?
Yes, the ISL43L220IR-T is explicitly stated as pin-compatible with the MAX4684 and MAX4685 in its official datasheet (FN6093 Rev 2.00, Page 1). Both share identical 10-lead 3×3 mm DFN footprints and matching pin functions (V+, GND, IN1/IN2, COM1/COM2, NO1/NO2, NC1/NC2), allowing drop-in replacement in existing layouts-provided supply and signal voltage constraints align.
Does the ISL43L220IR-T support break-before-make switching?
Yes, the ISL43L220IR-T guarantees break-before-make operation with a minimum time delay (tD) of 2 ns across the full temperature range. This prevents momentary shorting between NO and NC paths during state transitions, which is critical for glitch-free signal routing in ADC front-ends, audio mixers, and sensor multiplexers where signal integrity must be preserved.
What is the thermal resistance of the ISL43L220IR-T package?
The ISL43L220IR-T in its 10-lead 3×3 mm thin DFN package has a typical junction-to-ambient thermal resistance (θJA) of 47 °C/W and junction-to-case (θJC) of 10.5 °C/W. These values assume mounting on a high-thermal-conductivity PCB with direct-attach features per Tech Brief TB379; actual θJA will vary with copper area and airflow.
Can the ISL43L220IR-T handle analog signals beyond the supply rails?
No-the ISL43L220IR-T does not support rail-to-rail analog signals exceeding V+ or falling below GND. Internal ESD diodes clamp inputs to these rails; applying voltages outside [GND, V+] forward-biases those diodes and risks excessive current flow. For overvoltage-tolerant operation, external protection (e.g., series resistors or clamping diodes) is required per Figure 8 in the ISL43L220IR-T datasheet.
ISL43L220IR-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 350mOhm
- Channel-to-Channel Matching (ΔRon):
- 30mOhm
- Voltage - Supply, Single (V+):
- 1.1V ~ 4.5V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 17ns, 10ns
- -3db Bandwidth:
- -
- Charge Injection:
- 128pC
- Channel Capacitance (CS(off), CD(off)):
- 115pF
- Current - Leakage (IS(off)) (Max):
- 60nA
- Crosstalk:
- -95dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-TDFN (3x3)
ISL43L220IR-T FAQ
1.How can I place an order for ISL43L220IR-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL43L220IR-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 ISL43L220IR-T reliable?
The price and inventory of ISL43L220IR-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL43L220IR-T is usually 5 days.
3.What payment methods are accepted for ISL43L220IR-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL43L220IR-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL43L220IR-T?
ISL43L220IR-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL43L220IR-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 ISL43L220IR-T?
For technical support, including ISL43L220IR-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL43L220IR-T requirements.
6.How does Aetrix verify that ISL43L220IR-T is sourced from the original manufacturer or authorized distributors?
All ISL43L220IR-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 ISL43L220IR-T meets industry standards.
7.What is the process for return or replacement of ISL43L220IR-T?
All ISL43L220IR-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL43L220IR-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 ISL43L220IR-T part is unused and in its original packaging.
Return procedure for ISL43L220IR-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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