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Renesas ISL84541CB-T
- Part No.:
- ISL84541CB-T
- Manufacturer:
- Renesas
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ISL84541CB-T.pdf
- Description:
- IC SWITCH SPST-NOX2 60OHM 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,705
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Product details
Overview
ISL84541CB-T from Renesas Electronics is a dual single-pole/single-throw (SPST) analog switch with two normally open (NO) channels, designed for low-voltage, single-supply operation from +2.7V to +12V. It delivers 30Ω on-resistance at 5V, 35ns turn-on time, and 10nA max leakage at 85°C - enabling precision signal routing in space-constrained portable systems such as cellular handsets and medical ultrasound front-ends.
For engineers reviewing the ISL84541CB-T datasheet, ISL84541CB-T pinout, ISL84541CB-T application, or ISL84541CB-T equivalent, key selection criteria include guaranteed RON matching (<1Ω), ultra-low 5pC charge injection, SOT-23-8 package compatibility, and TTL/CMOS logic interface support across 3.3V and 5V supply rails.
Technical Context
The ISL84541CB-T implements CMOS transmission-gate architecture with integrated level shifters that translate TTL/CMOS logic inputs (0.8V/2.4V thresholds) into full-rail analog switch control signals. Its dual independent SPST topology eliminates channel crosstalk dependency while maintaining matched RON and timing characteristics across both switches.
Designed for single-supply battery-powered systems, it avoids bipolar supply constraints and incorporates reverse-biased ESD diodes (2000V HBM) between each analog pin and V+/GND. Leakage current remains stable up to 85°C due to balanced diode biasing, and switching performance degrades predictably below 2.7V - confirmed by voltage-sweep curves in Figures 8–13.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +2.7V to +12V single supply - supports Li-ion battery (3.0–4.2V), 3.3V logic, and 5V legacy systems without level-shifting circuitry |
| RON (5V) | 30Ω typical - enables <1% gain error in 1kΩ DAC output buffers and preserves SNR in audio paths |
| RON Matching | <1Ω at 25°C - ensures ≤0.1% mismatch in differential signal paths or dual-channel instrumentation amplifiers |
| tON/tOFF | 35ns / 25ns at 5V - supports multiplexing of >10MHz baseband signals in portable test equipment |
| Charge Injection | 5pC max - limits voltage glitch to <5mV on 1nF sample-and-hold capacitors, critical for 12-bit ADC accuracy |
| Leakage (85°C) | 10nA max - maintains <1LSB error in high-impedance sensor interfaces (e.g., pH electrodes, thermistors) |
| ESD Rating | 2000V HBM - meets IEC 61000-4-2 Level 2 for handheld device touchpoints and exposed connectors |
Pinout & Package
ISL84541CB-T is housed in an 8-lead SOT-23 package (P8.064 drawing), measuring 2.80mm × 2.90mm × 1.15mm with 0.65mm lead pitch. The package supports reflow soldering per Pb-free JEDEC J-STD-020B and offers θJA = 215°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN1) | Digital control input for Switch 1 | TTL/CMOS-compatible; drives internal level shifter to fully turn ON/OFF Channel 1 |
| 2 (NO1) | Normally open analog terminal, Switch 1 | Connects to COM1 only when IN1 = high; isolated from COM1 when IN1 = low |
| 3 (COM1) | Analog common node, Switch 1 | Shared path for bidirectional analog signals; must remain within 0V to V+ range |
| 4 (GND) | Ground reference | Return path for supply current and digital logic; must be low-impedance for leakage control |
| 5 (V+) | Positive power supply | Drives analog switch transistors and internal logic; must be applied before any analog/digital signals |
| 6 (COM2) | Analog common node, Switch 2 | Independent of COM1; enables true dual-channel isolation in multi-sensor systems |
| 7 (NO2) | Normally open analog terminal, Switch 2 | Functionally identical to NO1 but electrically isolated; supports independent channel control |
| 8 (IN2) | Digital control input for Switch 2 | Independent logic input; allows asynchronous switching of Channel 2 without affecting Channel 1 |
Key Features
| Feature | Design Value |
|---|---|
| Low RON flatness (7Ω) | Ensures consistent signal attenuation across full analog range (0V to V+), critical for video and audio fidelity |
| Break-before-make not required | SPST architecture inherently prevents signal shorting during transition - simplifies timing-critical designs |
| Guaranteed RON matching | Enables precise differential signal routing in instrumentation-grade applications without calibration |
| Ultra-low charge injection (5pC) | Minimizes sampling errors in high-resolution data acquisition systems using external hold capacitors |
| Single-supply operation down to 2.7V | Extends battery life in portable devices by eliminating need for auxiliary voltage rails or regulators |
Applications
| Cellular Handset Signal Routing | Portable Ultrasound Front-End |
|---|---|
Use Scenario: Multiplexing multiple microphone inputs or antenna diversity paths in space-limited smartphone PCBs. IC Role / Device Role / Timing Role: Dual SPST switch isolating RF/audio paths under baseband processor control. Use Value: 30Ω RON and 35ns switching preserve signal integrity across 20kHz–2MHz bands without added insertion loss. |
Use Scenario: Selecting between transducer channels in handheld ultrasound probes with tight thermal budgets. IC Role / Device Role / Timing Role: Low-leakage analog switch enabling high-impedance echo signal routing to ADC front-end. Use Value: 10nA max leakage at 85°C prevents baseline drift in 12-bit medical imaging digitization. |
| Audio Line-Level Multiplexing | Industrial Sensor Interface |
Use Scenario: Switching between line-in sources (mic, aux, Bluetooth codec) in battery-powered smart speakers. IC Role / Device Role / Timing Role: Bidirectional analog switch handling ±1Vpp audio signals with minimal THD. Use Value: 5pC charge injection and 76dB off-isolation suppress pop/click artifacts and inter-channel crosstalk. |
Use Scenario: Isolating thermistor or RTD measurement circuits from shared analog backplane in field instruments. IC Role / Device Role / Timing Role: Precision SPST gate controlling excitation current path and sensor return path. Use Value: Matched RON (<1Ω) eliminates offset errors in ratiometric bridge measurements. |
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 |
|---|---|---|---|
| MAX4541EUT-T | Same 8-pin SOT-23 package; RON = 35Ω at 5V (vs. ISL84541CB-T's 30Ω); tON = 45ns (vs. 35ns) | Slightly higher on-resistance increases gain error in precision DAC buffering; slower switching limits bandwidth to ~8MHz | Preferred where MAXIM footprint compatibility is mandatory and 5Ω RON penalty is acceptable |
| ISL43120IBZ | Pin-compatible upgrade; RON = 20Ω at 5V; tON = 25ns; same SOT-23-8 package | Higher speed and lower RON enable 16-bit DAC interfaces and >15MHz multiplexing without redesign | Select when upgrading existing ISL84541CB-T designs for improved resolution or bandwidth |
Compared with MAX4541EUT-T and ISL43120IBZ, the ISL84541CB-T provides optimal balance of low RON, fast switching, and proven reliability in portable medical and telecom equipment - making it ideal for cost-sensitive, volume production where 30Ω/35ns performance suffices.
Availability
ISL84541CB-T is available at Aetrix Electronics and suitable for cellular handset design, portable medical instrumentation, industrial sensor interface modules, and battery-powered audio equipment requiring stable component supply across extended temperature ranges (-40°C to +85°C).
Supply support for ISL84541CB-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
Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog power, and mixed-signal solutions for automotive, industrial, and IoT applications.
The ISL84541CB-T belongs to Renesas' precision analog switch family engineered for low-power, high-fidelity signal routing in battery-operated portable electronics - emphasizing minimal leakage, tight RON matching, and robust ESD protection.
FAQ
What is the maximum supply voltage rating for the ISL84541CB-T?
The ISL84541CB-T has an absolute maximum supply voltage of 15V, with recommended operating range from +2.7V to +12V. This 15V rating accommodates 12V supply tolerances, overshoot, and noise spikes while ensuring reliable operation in industrial and automotive environments where rail stability varies.
Does the ISL84541CB-T support bidirectional analog signal routing?
Yes, the ISL84541CB-T supports fully bidirectional analog signal flow on both SPST channels. Each switch (NO1↔COM1 and NO2↔COM2) passes signals equally in either direction when closed, with symmetric RON and capacitance characteristics confirmed in datasheet Figures 4 and 6.
How does the ISL84541CB-T handle input signals exceeding the supply rails?
The ISL84541CB-T contains internal ESD diodes from each analog pin (NO1, COM1, NO2, COM2) to V+ and GND. Signals exceeding V+ or falling below GND forward-bias these diodes, limiting voltage excursion to ~0.7V beyond rails - requiring external series resistors if overvoltage is expected during normal operation.
What is the thermal resistance (θJA) of the ISL84541CB-T in its SOT-23-8 package?
The ISL84541CB-T in the 8-lead SOT-23 package (P8.064) has a typical junction-to-ambient thermal resistance (θJA) of 215°C/W under standard JEDEC test conditions - verified on low-thermal-conductivity boards in free air per Tech Brief TB379.
Can the ISL84541CB-T operate with a 3.3V supply while maintaining full specification compliance?
Yes, the ISL84541CB-T is fully specified at 3.3V: RON = 50Ω (typ), tON/tOFF = 50ns/20ns (typ), and leakage remains ≤10nA at 85°C. All electrical parameters in Tables on pages 4–6 of FN6016 Rev.8.0 are guaranteed across –40°C to +85°C at 3.0V–3.6V supply.
ISL84541CB-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):
- 60Ohm
- Channel-to-Channel Matching (ΔRon):
- 800mOhm
- Voltage - Supply, Single (V+):
- 2.7V ~ 12V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 100ns, 75ns
- -3db Bandwidth:
- -
- Charge Injection:
- 1pC
- Channel Capacitance (CS(off), CD(off)):
- 8pF, 8pF
- Current - Leakage (IS(off)) (Max):
- 100pA
- Crosstalk:
- -90dB @ 1MHz
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
ISL84541CB-T FAQ
1.How can I place an order for ISL84541CB-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL84541CB-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 ISL84541CB-T reliable?
The price and inventory of ISL84541CB-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL84541CB-T is usually 5 days.
3.What payment methods are accepted for ISL84541CB-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL84541CB-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL84541CB-T?
ISL84541CB-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL84541CB-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 ISL84541CB-T?
For technical support, including ISL84541CB-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL84541CB-T requirements.
6.How does Aetrix verify that ISL84541CB-T is sourced from the original manufacturer or authorized distributors?
All ISL84541CB-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 ISL84541CB-T meets industry standards.
7.What is the process for return or replacement of ISL84541CB-T?
All ISL84541CB-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL84541CB-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 ISL84541CB-T part is unused and in its original packaging.
Return procedure for ISL84541CB-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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