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Renesas ISL43120IHZ-T
- Part No.:
- ISL43120IHZ-T
- Manufacturer:
- Renesas
- Package:
- SOT-23-8
- Datasheet:
-
ISL43120IHZ-T.pdf
- Description:
- IC SWITCH SPST-NOX2 20OHM SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:1,256
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Product details
Overview
ISL43120IHZ-T from Intersil is a dual normally-open (NO) single-pole/single-throw (SPST) analog switch IC designed for precision signal routing in low-voltage, single-supply systems. It operates from +2.7V to +12V, delivers 19Ω typical ON-resistance at 5V, 28ns turn-on time, <1Ω rON matching between channels, and supports battery-powered portable equipment requiring ultra-low leakage (≤10nA) and minimal power consumption (<5µW).
For engineers reviewing the ISL43120IHZ-T datasheet, ISL43120IHZ-T pinout, ISL43120IHZ-T application, or ISL43120IHZ-T equivalent, this device is selected for high-speed analog multiplexing, audio/video switching, and precision sample-and-hold circuits where bidirectional signal integrity, tight channel matching, and SOT-23 board-space efficiency are critical.
Technical Context
The ISL43120IHZ-T integrates two independent CMOS SPST switches with TTL/CMOS-compatible digital inputs and internal level-shifting circuitry that translates logic signals to full-rail analog gate drive. Its architecture ensures guaranteed break-before-make is not implemented-only the ISL43122 variant includes this feature.
It uses Si-gate CMOS process technology with 66 transistors per die, features ESD protection ≥2000V (HBM), and relies on V+ and GND only-no negative or split supplies. Analog signal range spans 0V to V+, and all I/O pins include reverse-biased ESD diodes to V+ and GND, defining leakage paths and overvoltage behavior.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +2.7V to +12V single supply - enables direct integration into 3.3V, 5V, and 12V systems without level shifters. |
| rON (5V) | 19Ω typical - ensures minimal signal attenuation and gain error in precision ADC/DAC interfaces. |
| rON Matching | <1Ω typical - critical for matched-channel applications like differential signal routing or dual-path calibration. |
| tON/tOFF | 28ns/20ns at 5V - supports >10MHz analog multiplexing without timing skew-induced distortion. |
| Leakage Current | ≤10nA max (full temp range) - preserves accuracy in high-impedance sensor front-ends and integrator reset circuits. |
| Charge Injection | 5pC max - limits voltage glitch in sample-and-hold and switched-capacitor circuits. |
| Off-Isolation | 76dB at 1MHz - suppresses crosstalk between active and inactive signal paths in dense layouts. |
| Package | 8-lead SOT-23 (P8.064) - occupies <2.8mm × 3.0mm footprint, ideal for space-constrained portable designs. |
Pinout & Package
8-lead SOT-23 package (JEDEC MO178BA / EIAJ SC-74 compliant), dimensions per P8.064 drawing: 2.80–3.00mm × 2.60–3.00mm × 0.90–1.45mm height, 0.65mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5 | NO1, NO2 | Analog Normally-Open switch terminals - open-circuit when IN = 0; connect to COM when IN = 1. |
| 2 | V+ | Positive supply input - powers internal CMOS switches and logic; sets analog signal ceiling (0V to V+). |
| 3, 7 | IN1, IN2 | Digital control inputs - TTL/CMOS compatible (VIL ≤ 0.8V, VIH ≥ 2.4V); drive internal level shifter. |
| 4, 8 | COM1, COM2 | Analog common terminals - bidirectional signal path junctions between NO and system circuitry. |
| 6 | GND | Ground reference - return path for supply current and analog signal baseline; required for ESD diode operation. |
Key Features
| Feature | Design Value |
|---|---|
| Fully specified at 3.3V/5V/12V | Guaranteed performance across industrial voltage rails - eliminates requalification when migrating between 3.3V microcontrollers and 12V analog subsystems. |
| Low charge injection (5pC max) | Minimizes hold-step error in precision sample-and-hold amplifiers and ADC front-ends. |
| 2000V HBM ESD rating | Enables robust handling in manual assembly and field-replaceable modules without external protection. |
| 19Ω rON with <1Ω matching | Supports matched dual-path instrumentation, such as programmable-gain amplifier networks and differential signal routing. |
| 8-pin SOT-23 packaging | Reduces PCB area by >50% vs. SOIC-8 - critical for smartphones, wearables, and compact medical sensors. |
| Single-supply operation | Eliminates need for dual-rail supplies or charge pumps - simplifies power architecture in battery-powered systems. |
Applications
| Audio Signal Routing | Portable Medical Sensors |
|---|---|
Use Scenario: Switching between multiple microphone inputs or headphone outputs in a smartphone or VoIP headset. IC Role / Device Role / Timing Role: Dual SPST analog switch providing bidirectional, low-distortion signal path selection with sub-30ns switching. Use Value: Preserves wideband audio fidelity (up to 300MHz flat response) while minimizing pop/click artifacts via low charge injection (5pC) and matched rON. | Use Scenario: Multiplexing ECG electrode signals into a single high-resolution ADC in a wearable cardiac monitor. IC Role / Device Role / Timing Role: Precision analog switch enabling low-leakage (<10nA), low-noise signal routing at 3.3V supply. Use Value: Maintains DC accuracy and long-term baseline stability in high-impedance biopotential measurements without external guarding. |
| Multi-Channel Data Acquisition | Industrial PLC I/O Modules |
Use Scenario: Scanning 8 thermocouple or RTD inputs into one sigma-delta ADC in a compact DAQ system. IC Role / Device Role / Timing Role: Dual SPST switch used in parallel configuration to build scalable 4:1 or 8:1 analog multiplexer arrays. Use Value: Delivers consistent 19Ω rON and <1Ω matching across channels - reduces channel-to-channel gain error to <0.1%. | Use Scenario: Isolating analog sensor inputs (4–20mA, 0–10V) from shared backplane in modular industrial controllers. IC Role / Device Role / Timing Role: Low-leakage analog switch protecting downstream signal conditioning from cross-talk and ground bounce. Use Value: Enables hot-swap capability and fault containment via 76dB off-isolation and 2000V ESD tolerance on all pins. |
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 |
|---|---|---|---|
| TMUX1574RTER | 4-channel SPDT, 5.5V max supply, 0.5Ω rON, but requires dual supply or level shifter for 12V systems. | Targeted at low-voltage, high-density muxing; lacks 12V compatibility and SOT-23-8 footprint. | Select when rON <1Ω is mandatory and system operates ≤5.5V; verify layout compatibility with 12-pin QFN. |
| ADG721BRMZ-REEL | 2-channel SPST, 5.5V max, 4Ω rON, 10nA leakage, but no 12V rating and higher rON mismatch (±2Ω). | Optimized for sub-5V portable gear; unsuitable for 12V industrial or automotive signal chains. | Choose for cost-sensitive 3.3V designs where 4Ω rON is acceptable and 12V operation is unnecessary. |
Compared with TMUX1574RTER and ADG721BRMZ-REEL, the ISL43120IHZ-T uniquely supports 2.7–12V single-supply operation in an industry-standard SOT-23-8 package, delivering optimal balance of speed (28ns), matching (<1Ω), and voltage flexibility for mixed-rail embedded systems.
Availability
ISL43120IHZ-T is available at Aetrix Electronics and suitable for battery-powered handheld devices, portable medical instruments, and industrial data acquisition systems requiring stable component supply, RoHS-compliant packaging, and long-term lifecycle support.
Supply support for ISL43120IHZ-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 is a leading provider of precision analog and power management solutions, now part of Renesas Electronics, with deep expertise in high-performance interface ICs and rugged industrial-grade components.
The ISL43120IHZ-T belongs to Intersil's low-voltage analog switch family, engineered specifically for portable, battery-operated equipment where minimal power, small footprint, and rail-to-rail analog performance are essential design requirements.
FAQ
What is the maximum supply voltage rating for the ISL43120IHZ-T?
The ISL43120IHZ-T has an absolute maximum supply voltage of 15V, with recommended operation from +2.7V to +12V. At 12V, it achieves 11Ω typical rON and 25ns/17ns tON/tOFF. Operation beyond 12V is not characterized and may degrade parametric performance or reliability. The ISL43120IHZ-T must never be operated above 15V to avoid permanent damage.
Does the ISL43120IHZ-T support break-before-make switching?
No, the ISL43120IHZ-T does not implement break-before-make functionality. That feature is exclusive to the ISL43122IHZ-T variant, which integrates one NO and one NC switch per package. The ISL43120IHZ-T contains two independent normally-open SPST switches, and both channels switch simultaneously without guaranteed dead-time insertion.
Can the ISL43120IHZ-T operate with a 3.3V logic input while powered from a 12V supply?
Yes, the ISL43120IHZ-T accepts TTL/CMOS logic inputs (VIL ≤ 0.8V, VIH ≥ 2.4V) across its full +2.7V to +12V supply range. A 3.3V logic signal fully satisfies the VIH requirement even at 12V V+, though noise margin decreases slightly; for robust operation, ensure driver VOH exceeds 2.8V.
What is the thermal resistance (θJA) of the ISL43120IHZ-T in its SOT-23 package?
The ISL43120IHZ-T in the 8-lead SOT-23 package has a typical junction-to-ambient thermal resistance (θJA) of 215°C/W, measured on a low-thermal-conductivity test board in free air. This value assumes standard JEDEC mounting conditions; actual θJA improves significantly with PCB copper pour and thermal vias.
Is the ISL43120IHZ-T pin-compatible with other members of the ISL4312x family?
Yes, the ISL43120IHZ-T shares identical pinout, package (SOT-23-8), and footprint with ISL43121IHZ-T and ISL43122IHZ-T. All three variants use the same pin assignments for V+, GND, IN1/IN2, COM1/COM2, and NO1/NO2 or NC1/NC2 - enabling drop-in replacement in layouts designed for any member of the family.
ISL43120IHZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 2
- On-State Resistance (Max):
- 20Ohm
- Channel-to-Channel Matching (ΔRon):
- 800mOhm
- Voltage - Supply, Single (V+):
- 2.7V ~ 12V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 35ns, 30ns
- -3db Bandwidth:
- -
- Charge Injection:
- 5pC
- Channel Capacitance (CS(off), CD(off)):
- 8pF, 8pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -105dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-8
ISL43120IHZ-T FAQ
1.How can I place an order for ISL43120IHZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL43120IHZ-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 ISL43120IHZ-T reliable?
The price and inventory of ISL43120IHZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL43120IHZ-T is usually 5 days.
3.What payment methods are accepted for ISL43120IHZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL43120IHZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL43120IHZ-T?
ISL43120IHZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL43120IHZ-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 ISL43120IHZ-T?
For technical support, including ISL43120IHZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL43120IHZ-T requirements.
6.How does Aetrix verify that ISL43120IHZ-T is sourced from the original manufacturer or authorized distributors?
All ISL43120IHZ-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 ISL43120IHZ-T meets industry standards.
7.What is the process for return or replacement of ISL43120IHZ-T?
All ISL43120IHZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL43120IHZ-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 ISL43120IHZ-T part is unused and in its original packaging.
Return procedure for ISL43120IHZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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