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Renesas ISL84542IH-T
- Part No.:
- ISL84542IH-T
- Manufacturer:
- Renesas
- Package:
- SOT-23-8
- Datasheet:
-
ISL84542IH-T.pdf
- Description:
- IC SWITCH SPST-NCX2 60OHM SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:1,634
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Product details
Overview
ISL84542IH-T from Renesas Electronics is a dual single-pole/single-throw (SPST) analog switch configured as two normally open (NO) switches, operating from a single +2.7V to +12V supply. It delivers 30Ω on-resistance at 5V, 35ns turn-on time, and 10nA max leakage at 85°C, enabling high-fidelity signal routing in space-constrained portable systems such as cellular handsets and medical ultrasound front-ends.
For engineers reviewing the ISL84542IH-T datasheet, ISL84542IH-T pinout, ISL84542IH-T application, or ISL84542IH-T equivalent, key selection criteria include guaranteed RON matching (<1Ω), low charge injection (5pC max), break-before-make timing (not applicable - SPST topology), and SOT-23-6 package compatibility with high-density PCB layouts.
Technical Context
The ISL84542IH-T implements CMOS transmission-gate architecture with integrated level shifters, enabling TTL/CMOS-compatible digital control across its full 2.7V–12V supply range. Its analog signal path supports rail-to-rail operation (0V to V+), with ESD protection diodes on all pins rated >2000V per MIL-STD-3015.7.
Unlike SPDT variants (e.g., ISL84544), this SPST device lacks break-before-make functionality but achieves superior channel-to-channel crosstalk rejection (−90dB) and off-isolation (76dB at 1MHz), critical for multi-channel multiplexing in precision ADC/DAC interfaces and sample-and-hold circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +2.7V to +12V - enables direct integration with 3.3V, 5V, and 12V systems without level-shifting circuitry |
| ON Resistance (RON) | 30Ω at 5V - ensures minimal signal attenuation and gain error in precision analog paths |
| RON Matching | <1Ω between channels - maintains amplitude consistency across dual-signal paths in differential or parallel configurations |
| Turn-On / Turn-Off Time | 35ns / 25ns - supports high-speed multiplexing up to ~10MHz without significant settling delay |
| Charge Injection | 5pC max - limits voltage glitch on sampled nodes, preserving accuracy in sample-and-hold and integrator reset applications |
| Leakage Current | 10nA max at 85°C - minimizes DC error accumulation in high-impedance sensor interfaces and battery-monitoring circuits |
| Package | 6-lead SOT-23 - occupies 8.4 mm² footprint, suitable for ultra-compact handheld and wearable electronics |
Pinout & Package
ISL84542IH-T is housed in a 6-lead SOT-23 package (JEDEC MO-178AB compliant), with pin 1 marked by a dot or beveled edge. The package measures 2.90mm × 1.60mm × 1.15mm (L × W × H) and features gull-wing leads for standard reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Digital Control Input | TTL/CMOS-compatible logic input; active-high enables switch conduction (0V = OFF, ≥2.4V = ON) |
| 2 (V+) | Positive Supply Rail | Single power source for analog path and internal logic; sets maximum analog signal swing (0V to V+) |
| 3 (GND) | Ground Reference | Common return for supply and logic; must be connected before applying analog or digital signals to prevent ESD diode conduction |
| 4 (NO) | Analog Normally Open Terminal | Switch output that connects to COM only when IN = HIGH; isolated from COM when disabled |
| 5 (NC) | No Internal Connection | Unbonded pad - left floating or tied to GND for mechanical stability; no electrical function |
| 6 (COM) | Analog Common Terminal | Shared analog node for bidirectional signal routing; connects to NO when switch is enabled |
Key Features
| Feature | Design Value |
|---|---|
| Low Power Consumption | <5µW quiescent dissipation - extends battery life in always-on portable instrumentation and wearables |
| Rail-to-Rail Analog Range | 0V to V+ signal handling - preserves full dynamic range of 3.3V and 5V ADCs without external biasing |
| High Off-Isolation | 76dB at 1MHz - suppresses crosstalk between adjacent channels in multi-signal data acquisition systems |
| ESD Robustness | >2000V HBM - eliminates need for external TVS protection in consumer-grade handheld designs |
| Pin Compatibility | Drop-in replacement for MAX4541 and DG9263 - reduces redesign effort when upgrading legacy analog muxes |
Applications
| Cellular Handset Signal Routing | Portable Ultrasound Front-End |
|---|---|
|
Use Scenario: Routing multiple microphone or antenna signals to a shared baseband ASIC with limited GPIO/analog input pins. IC Role / Device Role / Timing Role: Dual SPST switch providing flexible analog signal path selection under microcontroller GPIO control. Use Value: Enables ASIC functionality expansion without redesign; 30Ω RON and 5pC charge injection preserve SNR in RF and audio bands. |
Use Scenario: Multiplexing echo-return signals from multiple transducer elements into a single high-speed ADC channel. IC Role / Device Role / Timing Role: Low-latency analog switch managing time-division sampling across phased-array elements. Use Value: 35ns tON/25ns tOFF supports >10MHz sampling rates; −90dB crosstalk prevents inter-element interference. |
| Medical ECG Instrumentation | +3V/+5V DAC Output Switching |
|
Use Scenario: Selecting between patient lead configurations (RA/LA/LL/V1–V6) while maintaining ultra-low leakage for accurate DC-coupled biopotential measurement. IC Role / Device Role / Timing Role: Precision analog switch isolating high-impedance electrode inputs during channel switching. Use Value: 10nA max leakage at 85°C prevents baseline drift; rail-to-rail operation accommodates ±2.5V ECG signal swings with single 5V supply. |
Use Scenario: Dynamically selecting between multiple DAC outputs to drive different analog subsystems (e.g., bias voltages, calibration references). IC Role / Device Role / Timing Role: Low-RON, low-glitch switch ensuring stable DAC output delivery without transient errors. Use Value: 5pC charge injection avoids step-induced errors in precision reference switching; 30Ω RON minimizes gain deviation in op-amp buffer stages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4541EUT+T | Same 6-pin SOT-23, 35Ω RON at 5V, but higher 100pA leakage at 25°C and no guaranteed RON matching spec | Suitable for cost-sensitive consumer audio switching where sub-1Ω matching is non-critical | Prefer ISL84542IH-T when channel matching or high-temp leakage performance is required |
| TMUX1101DPWR | Lower 0.5Ω RON but requires dual supply (±2.5V) and has 1.5pC charge injection; 8-pin VSSOP package | Better for ultra-low-distortion audio line switching, not drop-in compatible due to supply and pinout mismatch | Select TMUX1101DPWR only if single-supply operation and SOT-23 footprint are not mandatory constraints |
Compared with MAX4541EUT+T and TMUX1101DPWR, the ISL84542IH-T uniquely balances single-supply flexibility, tight RON matching, and ultra-low leakage in the smallest possible footprint-making it optimal for battery-powered medical and communications equipment where board space and thermal stability are critical.
Availability
ISL84542IH-T is available at Aetrix Electronics and suitable for cellular handset design, portable ultrasound systems, medical ECG instrumentation, and industrial DAC multiplexing requiring stable component supply across extended temperature ranges (−40°C to +85°C).
Supply support for ISL84542IH-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 connectivity solutions for automotive, industrial, and IoT applications.
The ISL84542IH-T belongs to Renesas' precision analog switch family designed specifically for low-power, high-fidelity signal routing in space- and energy-constrained portable electronics.
FAQ
What is the maximum supply voltage rating for the ISL84542IH-T?
The ISL84542IH-T has an absolute maximum supply voltage of 15V, with recommended operation from +2.7V to +12V. This 15V rating provides margin for 12V supply overshoot and noise spikes, ensuring robustness in industrial and automotive environments where supply transients occur. Operating the ISL84542IH-T beyond 12V may degrade RON flatness and increase leakage, per Figure 8 and Table 4 in the FN6016 datasheet.
Does the ISL84542IH-T support rail-to-rail analog signal switching?
Yes, the ISL84542IH-T supports rail-to-rail analog signal switching from 0V to V+, as confirmed in the "Analog Signal Range" specification (VANALOG = 0 to V+) across all tested temperatures. This allows full utilization of the supply voltage range for both input and output signals, eliminating the need for external biasing networks in single-supply 3.3V or 5V systems using the ISL84542IH-T.
Is the ISL84542IH-T pin-compatible with the ISL84544 series?
No, the ISL84542IH-T is not pin-compatible with the ISL84544 series. The ISL84542IH-T uses a 6-lead SOT-23 package with IN/V+/GND/NO/NC/COM pinout, whereas the ISL84544IHZ-T uses the same 6-lead SOT-23 but assigns pins differently (IN/V+/GND/NO/NC/COM maps to IN/V+/GND/NO/COM/NC), and its truth table implements SPDT logic. Direct substitution would cause incorrect switching behavior and potential signal path shorts.
What is the typical charge injection value for the ISL84542IH-T, and why does it matter?
The ISL84542IH-T specifies a maximum charge injection of 5pC, with typical values around 1pC at 25°C. This parameter quantifies the net charge injected onto the switched node during transition, directly impacting voltage glitches in sample-and-hold circuits, integrator reset paths, and high-impedance sensor interfaces. Keeping charge injection below 5pC ensures sub-mV settling errors in 10-bit+ data acquisition systems using the ISL84542IH-T.
Can the ISL84542IH-T operate reliably at 85°C ambient temperature?
Yes, the ISL84542IH-T is fully specified and 100% tested for operation from −40°C to +85°C. Leakage current is guaranteed ≤5nA over this full range (Table 4, "Full" temp column), and RON remains ≤75Ω at 85°C with 5V supply. Thermal resistance θJA is 230°C/W for the SOT-23-6 package, meaning junction temperature stays within 150°C limit under typical 1mA analog load conditions at 85°C ambient - confirming reliable deployment in thermally demanding handheld and medical devices using the ISL84542IH-T.
ISL84542IH-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NC
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-8
ISL84542IH-T FAQ
1.How can I place an order for ISL84542IH-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL84542IH-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 ISL84542IH-T reliable?
The price and inventory of ISL84542IH-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL84542IH-T is usually 5 days.
3.What payment methods are accepted for ISL84542IH-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL84542IH-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL84542IH-T?
ISL84542IH-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL84542IH-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 ISL84542IH-T?
For technical support, including ISL84542IH-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL84542IH-T requirements.
6.How does Aetrix verify that ISL84542IH-T is sourced from the original manufacturer or authorized distributors?
All ISL84542IH-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 ISL84542IH-T meets industry standards.
7.What is the process for return or replacement of ISL84542IH-T?
All ISL84542IH-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL84542IH-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 ISL84542IH-T part is unused and in its original packaging.
Return procedure for ISL84542IH-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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