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Renesas ISL43L220IRZ-T
- Part No.:
- ISL43L220IRZ-T
- Manufacturer:
- Renesas
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
ISL43L220IRZ-T.pdf
- Description:
- IC SWITCH SPDTX2 350MOHM 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,068
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Product details
Overview
ISL43L220IRZ-T from Intersil is a dual SPDT analog switch optimized for ultra-low RON (0.22 Ω at 4.3 V), single-supply operation (1.1 V to 4.5 V), and high-speed switching (tON = 11 ns, tOFF = 5 ns). It serves as a bidirectional signal routing device in portable battery-powered systems where minimal insertion loss, low distortion, and logic-level compatibility with 1.8 V inputs are critical - e.g., cellular phone ASIC interface expansion.
For engineers reviewing the ISL43L220IRZ-T datasheet, ISL43L220IRZ-T pinout, ISL43L220IRZ-T application, or ISL43L220IRZ-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 10-lead 3×3 mm thin DFN package compatibility with space-constrained handheld designs.
Technical Context
The ISL43L220IRZ-T implements two independent SPDT switches with normally open (NO) and normally closed (NC) terminals per channel, configurable as dual 2:1 multiplexers. Its submicron CMOS process enables precise threshold control and low leakage (<110 nA over temperature).
Internal level shifters translate 1.8 V-compatible digital inputs (VINH ≥ 1.4 V at 3 V supply) into full-rail gate drive for analog switches, ensuring reliable operation across the 1.1–4.5 V supply range while maintaining guaranteed break-before-make timing (tD ≤ 4 ns).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +1.1 V to +4.5 V single supply - supports direct integration with modern low-voltage SoCs and battery rails without level-shifting circuitry. |
| RON (4.3 V) | 0.22 Ω typical - enables <0.01 dB insertion loss in 50 Ω audio/video paths and preserves signal integrity in precision sensor interfaces. |
| tON/tOFF | 11 ns / 5 ns at 4.3 V - allows clean switching of high-frequency signals up to 120 MHz bandwidth without transient artifacts. |
| RON Matching | 0.03 Ω max between channels - ensures matched gain/phase response in differential or parallel-switched configurations. |
| ESD Rating (HBM) | >9 kV - provides robust handling margin for assembly and field use in consumer handheld environments. |
| Leakage (Full Temp) | ±110 nA max COM/NO/NC - minimizes DC error in high-impedance sensor front-ends and medical instrumentation. |
| Package | 10-lead 3×3 mm thin DFN (L10.3x3A) - delivers thermal resistance θJA = 47 °C/W for compact PCB layouts with limited airflow. |
Pinout & Package
Package: 10-lead 3×3 mm thin DFN (L10.3x3A), exposed thermal pad, RoHS-compliant matte tin finish (e3), MSL3 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive power supply input | Drives internal CMOS switches and level shifters; must be applied before analog/digital signals to prevent ESD diode conduction. |
| GND | Ground reference | Return path for analog signal currents and digital logic; connects to exposed thermal pad for optimal heat dissipation. |
| IN1, IN2 | Digital control inputs | Accept 1.8 V logic levels (VINH ≥ 1.4 V at 3 V supply); low input current (<0.5 μA) minimizes driver loading. |
| COM1, COM2 | Analog common terminals | Bidirectional signal ports; support full rail-to-rail analog swing (0 V to V+) with <0.03 Ω RON flatness. |
| NO1, NO2 | Normally open analog outputs | Connect to COM when IN = 0; exhibit 115 pF OFF capacitance for predictable high-frequency feedthrough behavior. |
| NC1, NC2 | Normally closed analog outputs | Connect to COM when IN = 1; matched RON and leakage ensure symmetrical performance vs. NO pins. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low RON | 0.22 Ω at 4.3 V enables <0.001 Ω channel-to-channel mismatch in precision multiplexing applications. |
| Break-before-make guarantee | 2–4 ns minimum delay prevents momentary shorting in power-sensitive analog routing (e.g., audio DAC outputs). |
| 1.8 V logic compatibility | Validated at 3 V supply with VINL ≤ 0.5 V and VINH ≥ 1.4 V - eliminates need for external logic translators in mobile SoC interfaces. |
| Low charge injection | 95 pC typical at 4.3 V - reduces glitch amplitude in sample-and-hold and ADC front-end switching. |
| High off isolation | 68 dB at 100 kHz in 50 Ω system - suppresses crosstalk between adjacent RF/audio channels in multi-function handsets. |
Applications
| Cellular Phone ASIC Interface Expansion | Portable Audio Signal Routing |
|---|---|
Use Scenario: Expanding limited analog I/O on baseband ASICs in smartphones by adding external signal paths for camera sensors, stereo codecs, or antenna tuning. IC Role / Device Role / Timing Role: Dual SPDT switch acting as reconfigurable 2:1 multiplexer for analog signal routing under software control. Use Value: Enables functional flexibility without ASIC redesign; 0.22 Ω RON preserves SNR in microphone and speaker paths. |
Use Scenario: Selecting between multiple audio sources (e.g., Bluetooth codec, FM tuner, line-in) feeding a single DAC or amplifier in portable media players. IC Role / Device Role / Timing Role: Bidirectional analog switch providing low-distortion signal path selection with <0.003% THD. Use Value: Maintains audio fidelity across source transitions; 120 MHz bandwidth supports high-resolution audio sampling rates. |
| Medical Sensor Front-End Multiplexing | Test Equipment Signal Path Switching |
Use Scenario: Time-division multiplexing of multiple biopotential electrodes (ECG, EEG) into a shared precision ADC in handheld diagnostic devices. IC Role / Device Role / Timing Role: Low-leakage (±110 nA), low-RON analog switch minimizing DC offset and gain error in high-Z sensor interfaces. Use Value: Ensures measurement accuracy without calibration drift; RON flatness <0.03 Ω avoids frequency-dependent attenuation. |
Use Scenario: Automated switching of DUT signal paths in portable benchtop test instruments requiring fast, repeatable channel selection. IC Role / Device Role / Timing Role: High-speed SPDT switch enabling <15 ns channel change time for rapid test sequence execution. Use Value: Reduces test cycle time; guaranteed break-before-make prevents short-circuit faults during path reconfiguration. |
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 but higher RON (0.35 Ω typ at 3 V) and slower tON/tOFF (25/15 ns); no 1.1 V operation. | Less suitable for ultra-low-voltage battery operation or high-fidelity audio; acceptable for general-purpose 3 V switching. | Select MAX4684ETA+ only if legacy board reuse is required and 0.22 Ω RON is not critical. |
| ISL43L210IRZ-T | Same family, lower RON (0.18 Ω at 4.3 V) but single SPDT configuration; identical 10-lead DFN package and logic interface. | Requires two ICs to match dual-channel functionality; better for space-tolerant designs needing maximum conductivity. | Choose ISL43L210IRZ-T when single-channel density suffices and lowest possible RON is prioritized over channel count. |
Compared with MAX4684ETA+, ISL43L220IRZ-T delivers 35% lower RON and 2× faster switching at 3 V, while ISL43L210IRZ-T trades channel count for superior conductivity - making ISL43L220IRZ-T optimal for dual-channel, low-voltage, high-fidelity signal routing.
Availability
ISL43L220IRZ-T is available at Aetrix Electronics and suitable for cellular phone interface expansion, portable audio routing, medical sensor multiplexing, and automated test equipment requiring stable component supply and long-term manufacturability.
Supply support for ISL43L220IRZ-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 ISL43L220 product line was designed specifically for ultra-low-voltage, high-fidelity analog signal routing in battery-powered portable electronics - emphasizing minimal RON, low leakage, and robust ESD performance in miniature packages.
FAQ
What is the minimum operating voltage for ISL43L220IRZ-T?
The ISL43L220IRZ-T operates down to +1.1 V, enabling direct connection to emerging ultra-low-power battery rails and energy-harvesting systems. At this voltage, RON increases to 2.6 Ω (typ), tON extends to 30 ns, and digital input thresholds adjust to VINL ≤ 0.3 V / VINH ≥ 0.6 V - all specified and tested per FN6093 Rev 2.00.
Is ISL43L220IRZ-T pin-compatible with MAX4684?
Yes, the ISL43L220IRZ-T is explicitly stated as pin-compatible with MAX4684 and MAX4685 in the datasheet (FN6093, Page 1). Pin mapping, package outline (10-lead 3×3 mm DFN), and terminal functions match identically - allowing drop-in replacement in existing layouts without PCB modification.
Does ISL43L220IRZ-T support rail-to-rail analog signal switching?
Yes, the ISL43L220IRZ-T supports full rail-to-rail analog signal ranges from 0 V to V+ across its COM, NO, and NC terminals. This is confirmed in the Electrical Specifications tables (Pages 3–6), where Analog Signal Range (VANALOG) is specified as 0 to V+ over the full temperature range (-40°C to +85°C).
What is the thermal resistance of ISL43L220IRZ-T in its DFN package?
The ISL43L220IRZ-T in the 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, measured per JEDEC standards on high-thermal-conductivity test boards (FN6093, Page 3). The exposed pad must be soldered to a thermal plane for rated performance.
How does ISL43L220IRZ-T handle overvoltage conditions on analog pins?
The ISL43L220IRZ-T includes ESD protection diodes from each analog pin (NO, NC, COM) to V+ and GND. To prevent forward biasing, analog signals must remain within -0.3 V to (V+ + 0.3 V). If overvoltage is possible, external series diodes (per Figure 8, Page 9) or current-limiting resistors on logic inputs are recommended - but never on signal paths due to RON impact.
ISL43L220IRZ-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)
ISL43L220IRZ-T FAQ
1.How can I place an order for ISL43L220IRZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL43L220IRZ-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 ISL43L220IRZ-T reliable?
The price and inventory of ISL43L220IRZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL43L220IRZ-T is usually 5 days.
3.What payment methods are accepted for ISL43L220IRZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL43L220IRZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL43L220IRZ-T?
ISL43L220IRZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL43L220IRZ-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 ISL43L220IRZ-T?
For technical support, including ISL43L220IRZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL43L220IRZ-T requirements.
6.How does Aetrix verify that ISL43L220IRZ-T is sourced from the original manufacturer or authorized distributors?
All ISL43L220IRZ-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 ISL43L220IRZ-T meets industry standards.
7.What is the process for return or replacement of ISL43L220IRZ-T?
All ISL43L220IRZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL43L220IRZ-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 ISL43L220IRZ-T part is unused and in its original packaging.
Return procedure for ISL43L220IRZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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