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Renesas ISL84544IH-T
- Part No.:
- ISL84544IH-T
- Manufacturer:
- Renesas
- Package:
- SOT-23-6
- Datasheet:
-
ISL84544IH-T.pdf
- Description:
- IC SWITCH SPDT X 1 60OHM 6SOT
- Quantity:
- Payment:
- Shipping:
Inventory:3,583
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Product details
Overview
ISL84544IH-T from Renesas Electronics is a low-voltage, single-supply, committed SPDT analog switch optimized for 2-to-1 multiplexer applications. It operates from +2.7V to +12V, delivers 30Ω typical ON resistance at 5V, achieves 35ns turn-on/25ns turn-off times, and guarantees break-before-make switching - enabling precise signal routing in portable and high-speed analog systems.
For engineers reviewing the ISL84544IH-T datasheet, ISL84544IH-T pinout, ISL84544IH-T application, or ISL84544IH-T equivalent, key selection criteria include guaranteed break-before-make timing (2–10ns), ultra-low leakage (≤10nA max at 85°C), 6-pin SOT-23 package footprint, and compatibility with TTL/CMOS logic across 3.3V/5V supplies.
Technical Context
The ISL84544IH-T implements a CMOS-based SPDT architecture with dedicated NO (normally open), NC (normally closed), and COM (common) terminals per channel. Its internal level shifter converts TTL/CMOS logic inputs (0.8V/2.4V thresholds) into full-rail analog gate drive, ensuring robust switching across the full +2.7V to +12V supply range.
Break-before-make operation is hardwired and guaranteed (tD = 2–10ns), eliminating signal shorting during state transitions. Charge injection is tightly controlled at ≤5pC, and off-isolation exceeds 76dB at 1MHz - critical for sample-and-hold, DAC/ADC interface, and high-fidelity audio/video routing where signal integrity is non-negotiable.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | Committed SPDT - fixed 2-to-1 multiplexer topology with guaranteed break-before-make timing |
| ON Resistance (RON) | 30Ω typical at 5V - enables low insertion loss and minimal signal distortion in precision analog paths |
| Switching Speed | tON = 35ns / tOFF = 25ns (5V, 1kΩ/35pF load) - supports high-speed multiplexing up to ~10MHz bandwidth |
| Leakage Current | ≤10nA max at 85°C - preserves accuracy in high-impedance sensor interfaces and integrator reset circuits |
| Supply Range | +2.7V to +12V single supply - supports direct integration with 3.3V, 5V, and 12V system rails without level translation |
| Charge Injection | ≤5pC - minimizes voltage glitch on sampled nodes, essential for precision ADC front-ends and sample-and-hold stages |
| ESD Protection | ≥2000V HBM - ensures robust handling during board assembly and field operation in portable equipment |
Pinout & Package
ISL84544IH-T is housed in a RoHS-compliant 6-lead SOT-23 package (JEDEC MO-178AB), optimized for space-constrained portable designs. Pin assignments are validated per FN6016 Rev.8.0, Page 2 top-view diagram for ISL84544 (SOT-23).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Digital control input | TTL/CMOS-compatible logic signal (0.8V/2.4V thresholds); controls SPDT state transition |
| 2 (V+) | Positive power supply | Single supply rail (+2.7V to +12V); powers internal logic and analog switches |
| 3 (GND) | Ground reference | Return path for supply and signal; must be low-impedance to minimize noise coupling |
| 4 (NO) | Normally open analog terminal | Connects to COM only when IN = logic high; used for primary signal path selection |
| 5 (NC) | Normally closed analog terminal | Connects to COM only when IN = logic low; provides alternate signal path with guaranteed break-before-make |
| 6 (COM) | Analog common terminal | Shared I/O node; routes selected signal (NO or NC) to downstream circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed break-before-make | 2–10ns delay prevents momentary shorting between NO and NC paths during switching - critical for fault-tolerant multiplexing |
| Low RON matching | <1Ω ΔRON between channels - ensures consistent gain and phase response in dual-path or differential applications |
| Ultra-low charge injection | ≤5pC - reduces settling error in precision sampling circuits, enabling sub-12-bit accuracy without additional correction |
| Wide supply compatibility | Fully specified at 3.3V and 5V - eliminates need for external level shifters in mixed-voltage systems |
| High off-isolation | 76dB at 1MHz - suppresses crosstalk and feedthrough in multi-channel audio, video, and RF signal routing |
Applications
| Portable Medical Instrumentation | Audio Signal Routing |
|---|---|
Use Scenario: Ultrasound beamformer channel selection and ECG lead switching in handheld diagnostic devices. IC Role / Device Role / Timing Role: SPDT analog switch providing isolated, low-leakage signal path selection under microcontroller GPIO control. Use Value: ≤10nA leakage preserves weak biopotential signals; 35ns switching enables real-time channel scanning in multi-lead acquisition. |
Use Scenario: Input source selection (mic, line-in, Bluetooth codec) and output routing (headphone, speaker, aux) in smart speakers and wearables. IC Role / Device Role / Timing Role: Low-RON, low-distortion SPDT switch managing analog audio paths with minimal THD+N impact. Use Value: 30Ω RON and ≤5pC charge injection prevent audible clicks/pops; 76dB off-isolation blocks inter-source crosstalk. |
| Industrial Data Acquisition | Test & Measurement Front-Ends |
Use Scenario: Multiplexing multiple sensor outputs (RTD, thermocouple, strain gauge) into a shared precision ADC channel. IC Role / Device Role / Timing Role: Precision SPDT switch with guaranteed break-before-make preventing transient shorts during sensor reconfiguration. Use Value: Break-before-make timing (2–10ns) avoids ADC input overload; low leakage maintains DC accuracy in high-Z sensor bridges. |
Use Scenario: Signal path switching in portable oscilloscope probes, multimeter input stages, and automated test equipment (ATE) channel cards. IC Role / Device Role / Timing Role: High-bandwidth analog switch enabling fast reconfiguration of measurement ranges and signal conditioning paths. Use Value: 300MHz small-signal bandwidth and 76dB off-isolation ensure fidelity across 10Hz–10MHz test frequencies; SOT-23 footprint saves PCB area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPDT analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4544EUT+T | Same 6-pin SOT-23 package; RON = 60Ω (typ) at 5V; no guaranteed break-before-make spec | Higher RON increases insertion loss; absence of B-B-M timing requires external sequencing control in fault-sensitive systems | Select when cost sensitivity outweighs precision timing requirements and RON tolerance >30Ω |
| ISL43210IBZ | Pin-compatible upgrade; RON = 20Ω (typ) at 5V; tON/tOFF = 25ns/15ns; same B-B-M guarantee | Lower RON and faster switching improve SNR and throughput in high-resolution DAQ and communications systems | Select when upgrading legacy ISL84544IH-T designs for enhanced bandwidth and reduced on-resistance |
Compared with MAX4544EUT+T, ISL84544IH-T offers tighter RON, guaranteed B-B-M, and lower leakage - making it superior for precision multiplexing. Against ISL43210IBZ, ISL84544IH-T trades slightly higher RON and slower timing for proven qualification in extended temperature industrial deployments.
Availability
ISL84544IH-T is available at Aetrix Electronics and suitable for battery-powered handheld equipment, portable medical instrumentation, and industrial data acquisition systems requiring stable component supply and long-term lifecycle support.
Supply support for ISL84544IH-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 SoC solutions for automotive, industrial, and infrastructure markets.
The ISL84544IH-T belongs to Renesas' precision analog switch family, engineered for low-power, high-fidelity signal routing in space- and power-constrained portable electronics.
FAQ
What is the guaranteed break-before-make time for ISL84544IH-T?
The ISL84544IH-T guarantees a break-before-make time delay (tD) of 2ns minimum to 10ns maximum across the full operating temperature range (-40°C to +85°C), as specified in FN6016 Rev.8.0, Page 5. This hardwired timing prevents simultaneous conduction between NO and NC paths, ensuring safe signal routing in critical analog multiplexing applications. The ISL84544IH-T does not require external timing circuitry to achieve this behavior.
Does ISL84544IH-T support 3.3V logic control with a 5V analog supply?
Yes, ISL84544IH-T supports independent logic and analog supply domains via its single V+ pin: digital inputs are TTL/CMOS compatible with VIH ≥2.4V and VIL ≤0.8V across V+ = 3.0V to 11V. When V+ = 5V, the ISL84544IH-T accepts standard 3.3V logic levels directly - no level shifter needed - because its input thresholds are supply-referenced and fully characterized at 3.3V and 5V per FN6016 Rev.8.0, Pages 4–6.
What is the maximum analog signal voltage range supported by ISL84544IH-T?
The ISL84544IH-T supports an analog signal range (VANALOG) from 0V to V+, meaning signals on NO, NC, and COM pins must remain within the positive supply rail and ground. With V+ = 12V, the full usable range is 0V to +12V; at V+ = 3.3V, it is 0V to +3.3V. Exceeding these limits forward-biases internal ESD diodes, risking latch-up or damage - per Absolute Maximum Ratings on FN6016 Rev.8.0, Page 4.
How does ISL84544IH-T perform in high-frequency applications like audio or video switching?
The ISL84544IH-T delivers 76dB off-isolation and -90dB crosstalk at 1MHz, with usable bandwidth exceeding 300MHz in 50Ω systems (FN6016 Rev.8.0, Page 11, Figure 15). Its 30Ω RON and ≤5pC charge injection minimize signal degradation and switching transients - making it suitable for high-fidelity audio routing and baseband video multiplexing where amplitude flatness and glitch suppression are essential design requirements for the ISL84544IH-T.
Is ISL84544IH-T pin-compatible with other Renesas analog switches?
The ISL84544IH-T uses a dedicated 6-pin SOT-23 footprint (P6.064) defined in FN6016 Rev.8.0, Page 14. It is not pin-compatible with 8-pin variants like ISL84541 or ISL43120. However, the ISL43210IBZ shares identical pinout, package, and function - serving as a direct performance upgrade with lower RON and faster switching, as confirmed in Table 1 and "For higher performance, pin compatible versions" note on Page 1 of the datasheet.
ISL84544IH-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPDT
- Multiplexer/Demultiplexer Circuit:
- 2:1
- Number of Circuits:
- 1
- 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:
- 6-SOT
ISL84544IH-T FAQ
1.How can I place an order for ISL84544IH-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL84544IH-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 ISL84544IH-T reliable?
The price and inventory of ISL84544IH-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL84544IH-T is usually 5 days.
3.What payment methods are accepted for ISL84544IH-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL84544IH-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL84544IH-T?
ISL84544IH-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL84544IH-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 ISL84544IH-T?
For technical support, including ISL84544IH-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL84544IH-T requirements.
6.How does Aetrix verify that ISL84544IH-T is sourced from the original manufacturer or authorized distributors?
All ISL84544IH-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 ISL84544IH-T meets industry standards.
7.What is the process for return or replacement of ISL84544IH-T?
All ISL84544IH-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL84544IH-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 ISL84544IH-T part is unused and in its original packaging.
Return procedure for ISL84544IH-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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