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Renesas ISL5120CBZ-T
- Part No.:
- ISL5120CBZ-T
- Manufacturer:
- Renesas
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ISL5120CBZ-T.pdf
- Description:
- IC SWITCH SPST-NOX2 20OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,425
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Product details
Overview
ISL5120CBZ-T 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 portable 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 ADC/DAC multiplexing in space-constrained handheld devices.
For engineers reviewing the ISL5120CBZ-T datasheet, ISL5120CBZ-T pinout, ISL5120CBZ-T application, or ISL5120CBZ-T equivalent, this page provides verified circuit role, package mapping, real-world timing and leakage specs, and validated alternative options for dual NO analog switch designs requiring low rON, fast switching, and SOT-23 footprint compatibility.
Technical Context
The ISL5120CBZ-T implements CMOS-based bidirectional analog switches with integrated level shifters, enabling TTL/CMOS-compatible digital control across its full 2.7V–12V supply range. Its dual NO architecture isolates two independent signal paths without break-before-make sequencing.
Each channel features matched rON (≤1Ω), low charge injection (5pC max), and sub-10nA leakage at 25°C - critical for sample-and-hold accuracy and high-impedance sensor interfacing. The device uses Si-gate CMOS process with GND-biased substrate and no bipolar supply support.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.7V to +12V - supports direct integration with 3.3V, 5V, and 12V system rails without level translation |
| ON Resistance (rON) | 19Ω at 5V - ensures minimal signal attenuation and gain error in precision analog paths |
| rON Matching | ≤1Ω between channels - enables matched gain/attenuation in differential or dual-path circuits |
| Turn-On / Turn-Off Time | 28ns / 20ns at 5V - supports >10MHz multiplexing without pulse distortion in high-speed data acquisition |
| Charge Injection | 5pC max - limits voltage glitch in integrator reset and sample-and-hold applications |
| Leakage Current | 10nA max at 25°C - preserves DC accuracy in µA-level sensor front-ends and battery monitoring |
| Package | 8-pin SOT-23 - enables ultra-compact PCB layout for portable electronics with strict board area constraints |
Pinout & Package
ISL5120CBZ-T is housed in an 8-lead SOT-23 package (Pb-free, RoHS compliant) with standard thermal resistance θJA = 215°C/W. Pin functions are fully defined per datasheet FN6022 Rev 8.00.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN1) | Digital Control Input | Drives Channel 1 NO switch; logic high (≥2.4V) closes path between COM1 and NO1 |
| 2 (NO1) | Analog Switch Normally Open Terminal | Connects to COM1 only when IN1 = high; carries bidirectional analog signals up to V+ |
| 3 (COM1) | Analog Switch Common Terminal | Primary signal path node for Channel 1; interfaces with external circuitry or load |
| 4 (GND) | Ground Reference | System ground return for analog and digital sections; must be low-impedance for noise control |
| 5 (V+) | Positive Supply Rail | Powers internal CMOS switches and level shifters; sets analog signal range (0V to V+) |
| 6 (COM2) | Analog Switch Common Terminal | Primary signal path node for Channel 2; electrically isolated from COM1 |
| 7 (NO2) | Analog Switch Normally Open Terminal | Connects to COM2 only when IN2 = high; independent of Channel 1 operation |
| 8 (IN2) | Digital Control Input | Drives Channel 2 NO switch; logic high closes path between COM2 and NO2 |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent NO switches | Enables simultaneous or staggered routing of two separate analog signals without crosstalk interference |
| Guaranteed rON flatness ≤7Ω | Maintains consistent signal integrity across full analog input range (0V to V+) at 5V supply |
| 2000V ESD protection (HBM) | Eliminates need for external ESD diodes in handheld product designs handling frequent user contact |
| Low 5µW static power | Extends battery life in always-on sensor monitoring or standby-mode audio routing applications |
| 8-pin SOT-23 footprint | Reduces board area by >60% vs SOIC-8 while maintaining full functionality and thermal performance |
Applications
| Audio Signal Routing | Portable Medical Sensors |
|---|---|
Use Scenario: Selecting between multiple microphone inputs or headphone outputs in smartphones and wearables. IC Role / Device Role / Timing Role: Dual NO analog switch providing bidirectional, low-distortion signal path selection under microcontroller GPIO control. Use Value: 19Ω rON and 28ns switching preserve audio fidelity and enable rapid channel changes during call handover or ANC mode switching. |
Use Scenario: Multiplexing ECG electrode inputs into a single ADC channel in compact patient monitors. IC Role / Device Role / Timing Role: Precision analog switch isolating high-impedance biopotential sources while minimizing leakage-induced baseline drift. Use Value: 10nA max leakage and 5pC charge injection ensure stable DC offset and accurate ST-segment measurement over extended acquisition periods. |
| Industrial DAC Output Switching | Test Equipment Signal Path Control |
Use Scenario: Routing calibrated reference voltages from multiple DACs to shared calibration circuitry in programmable power supplies. IC Role / Device Role / Timing Role: Dual-channel analog switch enabling flexible output configuration without redesigning DAC interface hardware. Use Value: ≤1Ω rON matching ensures identical gain error across both paths, simplifying calibration compensation algorithms. |
Use Scenario: Configuring signal paths in automated test equipment (ATE) for RF and baseband stimulus/response measurements. IC Role / Device Role / Timing Role: High-speed analog switch supporting reconfigurable DUT interface with minimal insertion loss and crosstalk. Use Value: -105dB crosstalk and 76dB off-isolation at 1MHz prevent measurement contamination between adjacent test channels. |
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 |
|---|---|---|---|
| ISL5120IHZ-T | Same silicon die, identical electrical specs, but marked 'I20Z' and rated for -40°C to +85°C industrial temp range | Preferred for automotive or industrial environments where extended temperature operation is required | Select ISL5120IHZ-T when operating ambient exceeds 70°C or requires AEC-Q200-aligned reliability screening |
| TMUX1574RTER | 4-channel SPST, 5.5Ω rON at 3.3V, 1.8V–5.5V supply, 10-pin WQFN; higher integration but different pinout and control logic | Suitable for new designs needing more channels or lower voltage operation, not drop-in replacement | Choose TMUX1574RTER only for greenfield designs prioritizing channel density and ultra-low voltage support over footprint compatibility |
Compared with ISL5120IHZ-T, the ISL5120CBZ-T offers identical analog performance but narrower 0°C to +70°C rating; versus TMUX1574RTER, it provides proven SOT-23 compatibility and legacy design continuity at the cost of higher rON and fewer channels.
Availability
ISL5120CBZ-T is available at Aetrix Electronics and suitable for battery-powered handheld equipment, portable medical sensors, and industrial DAC output switching requiring stable component supply and long-term obsolescence management.
Supply support for ISL5120CBZ-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 precision analog and power management semiconductor company, now part of Renesas Electronics, with expertise in high-performance signal conditioning and energy-efficient IC design.
The ISL5120CBZ-T belongs to Intersil's low-voltage analog switch family engineered for portable electronics - emphasizing ultra-low power, miniature packaging, and robust signal integrity in space- and battery-constrained applications.
FAQ
What is the maximum supply voltage rating for ISL5120CBZ-T?
The absolute maximum supply voltage for ISL5120CBZ-T is +15V, though the recommended operating range is +2.7V to +12V. Operation above 12V risks exceeding specified timing and rON performance; the 15V limit provides margin for transient spikes on 12V rails. Always maintain input signals within V+ and GND to avoid forward-biasing internal ESD diodes.
Does ISL5120CBZ-T support break-before-make switching?
No, ISL5120CBZ-T does not implement break-before-make functionality - it is a dual normally open (NO) SPST switch with independent control of each channel. Break-before-make behavior is only guaranteed for ISL5122 and ISL5123 variants, which integrate complementary NO/NC topology. Using ISL5120CBZ-T for SPDT-like operation requires external timing control to avoid momentary shorts.
Can ISL5120CBZ-T operate from a 1.8V supply?
No, ISL5120CBZ-T is not specified for 1.8V operation. Its minimum recommended supply is +2.7V, and digital input thresholds (VINL ≤0.8V, VINH ≥2.4V) require sufficient headroom to ensure reliable logic recognition. At 1.8V, the internal level shifter cannot generate proper gate drive for the analog switches, resulting in undefined rON and potential failure to turn on.
What is the thermal resistance (θJA) of ISL5120CBZ-T in its SOT-23 package?
The junction-to-ambient thermal resistance (θJA) for ISL5120CBZ-T in the 8-lead SOT-23 package is 215°C/W under standard JEDEC test conditions. This value assumes mounting on a low-thermal-conductivity board in still air; actual performance improves with copper pour or airflow. Maximum junction temperature must not exceed 150°C under continuous operation.
Is ISL5120CBZ-T pin-compatible with ISL84541?
Yes, ISL5120CBZ-T is explicitly documented as a pin-compatible, improved-performance replacement for ISL84541 - offering lower rON (19Ω vs 25Ω at 5V), faster switching (28ns vs 35ns tON), and reduced charge injection (5pC vs 10pC). No PCB layout changes are required when upgrading from ISL84541 to ISL5120CBZ-T in existing designs.
ISL5120CBZ-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):
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ISL5120CBZ-T FAQ
1.How can I place an order for ISL5120CBZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL5120CBZ-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 ISL5120CBZ-T reliable?
The price and inventory of ISL5120CBZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL5120CBZ-T is usually 5 days.
3.What payment methods are accepted for ISL5120CBZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL5120CBZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL5120CBZ-T?
ISL5120CBZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL5120CBZ-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 ISL5120CBZ-T?
For technical support, including ISL5120CBZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL5120CBZ-T requirements.
6.How does Aetrix verify that ISL5120CBZ-T is sourced from the original manufacturer or authorized distributors?
All ISL5120CBZ-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 ISL5120CBZ-T meets industry standards.
7.What is the process for return or replacement of ISL5120CBZ-T?
All ISL5120CBZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL5120CBZ-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 ISL5120CBZ-T part is unused and in its original packaging.
Return procedure for ISL5120CBZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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