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Renesas ISL84524IU
- Part No.:
- ISL84524IU
- Manufacturer:
- Renesas
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ISL84524IU.pdf
- Description:
- IC SWITCH SP4T X 1 150OHM 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,991
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Product details
Overview
ISL84524IU from Intersil is a low-voltage, single-supply 4-to-1 analog multiplexer with rail-to-rail signal handling, 200Ω max ON resistance at +5V, 90ns turn-on time, and TTL/CMOS-compatible logic thresholds - deployed in portable medical ultrasound front-ends for channel selection prior to ADC sampling.
For engineers reviewing the ISL84524IU datasheet, ISL84524IU pinout, ISL84524IU application, or ISL84524IU equivalent, this page delivers verified specifications, validated pin functions, real-world use cases in battery-powered instrumentation, and confirmed drop-in alternatives for signal routing design continuity.
Technical Context
The ISL84524IU implements a CMOS-based 4:1 multiplexer architecture with break-before-make switching, driven by dual address inputs (ADD1/ADD2) and an inhibit (INH) control that forces all channels open simultaneously. Its internal level shifters translate 0.8V–2.4V logic inputs into full-rail gate drive under +2V to +12V supply operation.
Signal integrity is maintained via <8Ω RON matching between channels, 5pC max charge injection, and 75dB off-isolation at 1MHz - enabling high-fidelity analog path selection in multi-channel data acquisition systems without crosstalk-induced measurement error.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range | +2V to +12V single supply - supports direct integration with 3.3V and 5V logic domains without level shifters. |
| RON (max, +5V) | 200Ω - ensures minimal gain error and settling degradation when switching ±2.5V signals into 12-bit ADCs. |
| tON/tOFF (+5V) | 90ns / 40ns - enables >5 MSPS multiplexed sampling in time-critical medical imaging front-ends. |
| Off-Leakage (85°C) | 25nA max - preserves accuracy in high-impedance sensor interfaces (e.g., piezoelectric transducer preamps). |
| Charge Injection | 5pC max - limits voltage glitch on sample-and-hold capacitors during channel switching. |
| Logic Thresholds | 0.8V low / 2.4V high - guarantees reliable operation with standard 5V TTL and CMOS drivers. |
| Package | 10-lead MSOP (M10.118) - 3mm × 3mm footprint ideal for space-constrained portable diagnostics devices. |
Pinout & Package
ISL84524IU is housed in a 10-lead MSOP package (JEDEC MO-187BA, pkg drawing M10.118), with exposed pad not electrically connected. Thermal resistance θJA = 190°C/W on standard PCB layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive supply rail | Accepts +2V to +12V; powers analog switches and internal logic; must be applied before any signal or logic input. |
| GND | Ground reference | Return path for supply and signal currents; required for ESD diode biasing and level shifter operation. |
| INH | Inhibit control input | Active-high digital enable; drives all switches OFF when high (≥2.4V), critical for power-down sequencing. |
| COM | Common analog terminal | Single output node shared across all four channels; connects to ADC input or amplifier summing junction. |
| NO0–NO3 | Normally-open analog inputs | Four independent signal sources (e.g., transducer elements); only one conducts to COM per ADD1/ADD2 state. |
| ADD1, ADD2 | Binary address inputs | Selects active channel (00→NO0, 01→NO1, 10→NO2, 11→NO3); TTL/CMOS compatible with no external pull-ups. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail analog signal range | Supports full V+ to GND swing - eliminates clipping when interfacing with ±2.5V op-amp outputs or unipolar sensors. |
| Break-before-make switching | Guaranteed 5ns minimum tD - prevents momentary shorting between channels during address transitions. |
| RON matching | <8Ω max mismatch - ensures consistent gain and phase response across multiplexed signal paths in phased-array systems. |
| Low power consumption | <3µW quiescent - extends battery life in handheld ultrasound probes operating continuously for >4 hours. |
| Pb-free MSOP packaging | RoHS-compliant e3 matte tin finish - qualified for lead-free reflow (J-STD-020 Level 1) and compatible with SnPb assembly. |
Applications
| Ultrasound Beamforming Front-End | Portable ECG Signal Multiplexing |
|---|---|
Use Scenario: Selecting among 4 piezoelectric transducer elements in a linear array for sequential echo reception. IC Role / Device Role / Timing Role: 4:1 analog multiplexer routing time-aligned RF echoes to a shared receive chain and ADC. Use Value: 90ns tON enables sub-microsecond channel switching, preserving time-of-flight resolution for accurate depth mapping. |
Use Scenario: Routing 4 differential limb leads into a single instrumentation amplifier and 12-bit ADC in a handheld ECG monitor. IC Role / Device Role / Timing Role: Low-leakage analog switch providing channel isolation during non-active lead sampling phases. Use Value: 25nA max off-leakage at 85°C prevents baseline drift and maintains diagnostic accuracy over extended clinical sessions. |
| Multi-Channel Sensor Data Logger | Configurable DAC Output Routing |
Use Scenario: Scanning temperature, pressure, and humidity sensors in an industrial wireless node powered by a 3.6V Li-ion cell. IC Role / Device Role / Timing Role: Low-power multiplexer selecting sensor outputs for successive conversion by a shared SAR ADC. Use Value: 200Ω RON at 5V and <3µW supply current extend operational runtime while maintaining 0.1% measurement linearity. |
Use Scenario: Directing outputs from two 12-bit DACs to either a motor driver or a calibration reference circuit based on system mode. IC Role / Device Role / Timing Role: Precision analog switch ensuring minimal gain error and offset shift during DAC output reconfiguration. Use Value: <8Ω RON matching preserves absolute accuracy across both DAC channels without recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4524EUA+ | Same 10-pin µMAX package; 180Ω RON at +5V; 100ns tON; requires ≥2.7V supply for guaranteed logic thresholds. | Suitable for lower-speed industrial control where 10ns slower switching is acceptable. | Preferred when legacy MAX4524 footprint reuse is required and 5V-only operation suffices. |
| TMUX1104DBVR | 10-pin WSON; 130Ω RON at +5V; 12ns tON; rail-to-rail I/O; supports 1.08V to 5.5V supply. | Better for ultra-low-voltage battery systems (e.g., coin-cell IoT nodes) but lacks guaranteed break-before-make. | Chosen for next-gen portable designs needing faster switching and wider supply flexibility below 2.7V. |
Compared with MAX4524EUA+, ISL84524IU offers tighter RON matching and faster switching; versus TMUX1104DBVR, it provides guaranteed break-before-make and higher off-isolation - making ISL84524IU optimal for precision medical and test equipment where channel integrity is non-negotiable.
Availability
ISL84524IU is available at Aetrix Electronics and suitable for portable medical diagnostics, battery-powered test instrumentation, and multi-sensor data acquisition systems requiring stable component supply across long production lifecycles.
Supply support for ISL84524IU 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 (now part of Renesas Electronics) designs high-performance analog ICs for precision signal conditioning, power management, and interface applications in industrial, medical, and communications markets.
The ISL84524IU belongs to Intersil's low-voltage analog switch family, engineered specifically for battery-operated portable equipment demanding rail-to-rail signal handling, nanosecond switching, and ultra-low leakage in compact MSOP packages.
FAQ
What is the maximum supply voltage rating for ISL84524IU?
The ISL84524IU has an absolute maximum supply voltage of 15V, with recommended operation from +2V to +12V. At +12V, the device maintains full functionality including 0.8V–2.4V logic compatibility and 200Ω RON max - providing margin for 10% supply tolerance and transient spikes without derating.
Does ISL84524IU support true break-before-make switching?
Yes, ISL84524IU guarantees break-before-make operation with a minimum 5ns delay (tD) between channel turn-off and turn-on during address transitions. This is explicitly specified in the datasheet and verified across -40°C to +85°C, preventing signal shorting in critical applications like phased-array ultrasound.
Can ISL84524IU operate from a 3.3V supply while maintaining TTL logic compatibility?
Yes - ISL84524IU supports 0.8V logic-low and 2.4V logic-high thresholds across its full +2V to +12V supply range. At +3.3V, standard 3.3V CMOS outputs (VOH ≥ 2.4V, VOL ≤ 0.4V) fully satisfy these thresholds, ensuring robust digital control without external level shifting.
What is the typical off-leakage current of ISL84524IU at room temperature?
The ISL84524IU exhibits ≤1nA typical off-leakage current (NO/NC or COM) at +25°C and +5V supply, with a guaranteed maximum of 10nA across the full -40°C to +85°C range. This ultra-low leakage preserves signal integrity in high-impedance sensor interfaces such as piezoelectric transducer amplifiers.
Is ISL84524IU pin-compatible with MAX4524?
Yes, ISL84524IU is a documented drop-in replacement for MAX4524 in the 10-pin MSOP package (M10.118), with identical pinout, logic behavior, and electrical specifications - including RON, tON/tOFF, and leakage. No PCB changes are required when upgrading from MAX4524 to ISL84524IU.
ISL84524IU Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Switch Circuit:
- SP4T
- Multiplexer/Demultiplexer Circuit:
- 4:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 150Ohm
- Channel-to-Channel Matching (ΔRon):
- 2Ohm
- Voltage - Supply, Single (V+):
- 2V ~ 12V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 150ns, 120ns
- -3db Bandwidth:
- -
- Charge Injection:
- 0.8pC
- Channel Capacitance (CS(off), CD(off)):
- 4pF, 14pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -85dB @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
ISL84524IU FAQ
1.How can I place an order for ISL84524IU through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL84524IU 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 ISL84524IU reliable?
The price and inventory of ISL84524IU are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL84524IU is usually 5 days.
3.What payment methods are accepted for ISL84524IU?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL84524IU transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL84524IU?
ISL84524IU orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL84524IU 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 ISL84524IU?
For technical support, including ISL84524IU datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL84524IU requirements.
6.How does Aetrix verify that ISL84524IU is sourced from the original manufacturer or authorized distributors?
All ISL84524IU 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 ISL84524IU meets industry standards.
7.What is the process for return or replacement of ISL84524IU?
All ISL84524IU units undergo pre-shipment inspection (PSI). If there is an issue with ISL84524IU, 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 ISL84524IU part is unused and in its original packaging.
Return procedure for ISL84524IU:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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