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Renesas ISL5120IBZ
- Part No.:
- ISL5120IBZ
- Manufacturer:
- Renesas
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ISL5120IBZ.pdf
- Description:
- IC SWITCH SPST-NOX2 20OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,663
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Product details
Overview
ISL5120IBZ from Intersil is a low-voltage, single-supply, dual SPST analog switch with two normally open (NO) channels, designed for precision signal routing in battery-powered systems. It delivers 19Ω ON-resistance at 5V, 28ns turn-on time, <5µW power consumption, and operates from +2.7V to +12V - enabling high-fidelity audio/video switching and portable medical instrumentation.
For engineers reviewing the ISL5120IBZ datasheet, ISL5120IBZ pinout, ISL5120IBZ application, or ISL5120IBZ equivalent, this page provides verified package mapping (8-lead SOT-23), confirmed dual NO topology, leakage-limited design context (10nA max OFF leakage), and real-world selection guidance against functionally aligned alternatives.
Technical Context
The ISL5120IBZ implements CMOS-based bidirectional analog switches with integrated level shifters that translate TTL/CMOS logic inputs (0.8V/2.4V thresholds) into full-rail gate drive signals across its 2.7–12V supply range. Its architecture ensures symmetrical conduction in both directions without polarity constraints on analog signals.
Each channel features matched ON-resistance (≤1Ω matching), low charge injection (5pC max), and guaranteed break-before-make timing only in ISL5122/ISL5123 variants - not applicable to ISL5120IBZ, which uses independent NO switching with no inter-channel timing coordination.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ON-resistance (rON) | 19Ω at 5V - enables low insertion loss in 50Ω signal paths and minimal gain error in precision op-amp networks |
| rON matching | ≤1Ω between channels - critical for balanced differential switching and matched filter banks |
| Turn-on time (tON) | 28ns at 5V - supports multiplexing of audio, ultrasound, and high-speed DAC/ADC sample streams |
| Supply voltage range | +2.7V to +12V - accommodates Li-ion, 3.3V, 5V, and 12V industrial rails without level-shifting circuitry |
| OFF leakage current | 10nA max - preserves signal integrity in high-impedance sensor front-ends and integrator reset circuits |
| Charge injection | 5pC max - minimizes voltage glitch in sample-and-hold and switched-capacitor applications |
| ESD protection | 2000V per MIL-STD-883 Method 3015.7 - ensures robustness during board handling and system integration |
Pinout & Package
ISL5120IBZ is housed in an 8-lead Pb-free SOT-23 package (RoHS compliant, MSL Level 2), optimized for space-constrained portable designs. Thermal resistance θJA is 215°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply rail input | Bias source for internal CMOS switches and logic level shifters; sets analog signal ceiling (0V to V+) |
| GND | Ground reference | Return path for supply current and analog signal baseline; required for ESD diode clamping |
| IN1, IN2 | Digital control inputs | TTL/CMOS-compatible logic pins; high = channel ON (NO closed), low = channel OFF (NO open) |
| COM1, COM2 | Analog common terminals | Input/output bidirectional nodes; connect to signal source or load depending on routing configuration |
| NO1, NO2 | Normally open analog switch terminals | Open-circuit when INx = low; connect to COMx only when INx = high - defines SPST NO behavior |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent NO topology | Enables simultaneous or isolated routing of two analog signals without cross-talk or timing coupling |
| Single-supply operation down to 2.7V | Eliminates need for negative rails or charge pumps in portable equipment powered by single-cell batteries |
| Low 5µW power dissipation | Extends battery life in always-on monitoring circuits and reduces thermal load in dense PCB layouts |
| 21pF COM ON capacitance | Maintains bandwidth >300MHz in 50Ω systems while minimizing loading on high-frequency sources |
| Pb-free RoHS-compliant packaging | Meets IPC/JEDEC J-STD-020 reflow standards and supports lead-free assembly processes |
Applications
| Ultrasound Signal Routing | Portable ECG Front-End |
|---|---|
Use Scenario: Multiplexing multiple transducer elements to a shared ADC channel in handheld ultrasound probes. IC Role / Device Role / Timing Role: Dual SPST NO switch selecting analog echo return paths with sub-30ns settling. Use Value: Enables compact probe design using one high-resolution ADC instead of multiple converters, reducing BOM cost and power draw. |
Use Scenario: Switching between patient leads and calibration references in battery-powered electrocardiograph units. IC Role / Device Role / Timing Role: Precision analog multiplexer isolating microvolt-level biopotential signals from digital control noise. Use Value: Maintains <10nA leakage and <20ns switching to prevent baseline drift and ensure diagnostic-grade signal fidelity. |
| Audio Channel Selection | Industrial DAC Output Switching |
Use Scenario: Selecting between microphone inputs or speaker outputs in smart headsets and voice-controlled devices. IC Role / Device Role / Timing Role: Low-distortion analog switch routing line-level audio with minimal rON variation. Use Value: Delivers 19Ω rON and ≤1Ω matching to preserve stereo balance and avoid audible channel imbalance. |
Use Scenario: Routing outputs from multiple DACs to shared analog filters or actuator drivers in programmable logic controllers. IC Role / Device Role / Timing Role: High-speed, low-leakage SPST switch enabling dynamic reconfiguration of analog output paths. Use Value: Supports fast settling (<30ns) and low charge injection (5pC) to prevent glitches during DAC output switching events. |
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 |
|---|---|---|---|
| MAX4617EUT+T | Higher rON (45Ω @ 5V), slower tON (60ns), SO-8 only - no SOT-23 option | Limited suitability for space-constrained portable designs requiring ultra-low rON and fast switching | Prefer ISL5120IBZ where board area and signal integrity are critical; MAX4617 suits cost-sensitive industrial controls |
| ADG702BRMZ-REEL7 | Lower supply range (1.8–5.5V), higher leakage (20nA), same 8-lead MSOP package - no SOT-23 variant | Incompatible with 12V systems and high-temperature industrial environments (>85°C) | Select ISL5120IBZ for wide-voltage, extended-temp, and miniaturized designs; ADG702 fits low-voltage embedded sensors |
Compared with MAX4617EUT+T and ADG702BRMZ-REEL7, ISL5120IBZ uniquely combines 8-lead SOT-23 packaging, 2.7–12V operation, 19Ω rON, and 28ns tON - making it the only option qualified for high-density, multi-rail portable instrumentation requiring dual NO routing without layout compromise.
Availability
ISL5120IBZ is available at Aetrix Electronics and suitable for battery-powered handheld equipment, portable medical diagnostics, and high-speed analog multiplexing requiring stable component supply and long-term lifecycle support.
Supply support for ISL5120IBZ 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 semiconductor company specializing in precision analog and power management ICs, now part of Renesas Electronics since 2017.
The ISL5120IBZ belongs to Intersil's low-voltage analog switch family, engineered for portable and battery-operated systems where size, power efficiency, and signal fidelity are primary design constraints.
FAQ
What is the maximum supply voltage rating for ISL5120IBZ?
The absolute maximum supply voltage for ISL5120IBZ is +15V, though the recommended operating range is +2.7V to +12V. Operation beyond 12V is not specified in electrical characteristics and may degrade performance or reliability. The 15V rating provides margin for transient spikes and 10% tolerance on nominal 12V rails, as confirmed in the Absolute Maximum Ratings table on page 4 of FN6022 Rev 8.00. ISL5120IBZ maintains 11Ω rON and 25ns tON at 12V.
Does ISL5120IBZ support break-before-make switching?
No, ISL5120IBZ does not support break-before-make (BBM) switching. BBM is guaranteed only for ISL5122 and ISL5123 variants, as explicitly stated in the Features section and Truth Table on page 2 of FN6022 Rev 8.00. ISL5120IBZ implements two independent normally open (NO) SPST switches with no timing coordination between channels - meaning both can be turned ON simultaneously without guaranteed isolation.
What is the analog signal voltage range supported by ISL5120IBZ?
The analog signal range for ISL5120IBZ is 0V to V+, as specified under "Analog Signal Range, VANALOG" in the Electrical Specifications tables (pages 4–7 of FN6022 Rev 8.00). This means signals applied to COM, NO, or NC pins must stay within the supply rails - e.g., 0–5V at 5V supply, 0–12V at 12V supply. Exceeding these limits forward-biases internal ESD diodes and risks damage or increased leakage.
Is ISL5120IBZ pin-compatible with older Intersil analog switches?
Yes, ISL5120IBZ is a pin-compatible replacement for ISL84541, as noted in the Features section on page 1 of FN6022 Rev 8.00. Both use identical 8-lead SOT-23 pinout and share the same dual NO configuration. However, ISL5120IBZ improves rON (19Ω vs. 35Ω typical), switching speed (28ns vs. 45ns tON), and leakage (10nA vs. 25nA), making it a direct drop-in upgrade without PCB changes.
What is the thermal resistance (θJA) of ISL5120IBZ in its SOT-23 package?
The junction-to-ambient thermal resistance (θJA) for ISL5120IBZ in the 8-lead SOT-23 package is 215°C/W, as specified in the Thermal Information table on page 4 of FN6022 Rev 8.00. This value is measured under standard JEDEC conditions (low effective thermal conductivity test board, free air). For continuous operation at full 30mA per terminal, junction temperature must remain below 150°C - limiting ambient temperature in high-power configurations.
ISL5120IBZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- 8-SOIC
ISL5120IBZ FAQ
1.How can I place an order for ISL5120IBZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL5120IBZ 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 ISL5120IBZ reliable?
The price and inventory of ISL5120IBZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL5120IBZ is usually 5 days.
3.What payment methods are accepted for ISL5120IBZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL5120IBZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL5120IBZ?
ISL5120IBZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL5120IBZ 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 ISL5120IBZ?
For technical support, including ISL5120IBZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL5120IBZ requirements.
6.How does Aetrix verify that ISL5120IBZ is sourced from the original manufacturer or authorized distributors?
All ISL5120IBZ 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 ISL5120IBZ meets industry standards.
7.What is the process for return or replacement of ISL5120IBZ?
All ISL5120IBZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL5120IBZ, 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 ISL5120IBZ part is unused and in its original packaging.
Return procedure for ISL5120IBZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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