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Renesas ISL43640IUZ
- Part No.:
- ISL43640IUZ
- Manufacturer:
- Renesas
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ISL43640IUZ.pdf
- Description:
- IC SWITCH SP4T X 1 50OHM 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,110
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Product details
Overview
ISL43640IUZ from Intersil is a low-voltage, single-supply, 4:1 analog multiplexer switch configured as a bidirectional precision analog signal selector. It operates from +2V to +12V, delivers 115Ω ON resistance at +5V, 60ns turn-on time, and <2Ω RON matching between channels. It is used in portable medical ultrasound front-ends for channel selection prior to ADC sampling.
For engineers reviewing the ISL43640IUZ datasheet, ISL43640IUZ pinout, ISL43640IUZ application, or ISL43640IUZ equivalent, key selection criteria include rail-to-rail analog signal handling, guaranteed break-before-make switching, low charge injection (≤1pC), and compatibility with 3V/5V/12V systems in space-constrained MSOP layouts.
Technical Context
The ISL43640IUZ implements a CMOS-based 4:1 multiplexer architecture with dual address inputs (ADD1, ADD2) and an active-low inhibit (INH) control that simultaneously opens all four NO paths. Its internal level shifters translate TTL/CMOS logic thresholds (0.8V/2.4V at 5V) to full V+–GND gate drive for analog switches.
It features guaranteed break-before-make timing (≥5ns delay), low off-leakage (≤2.5nA at 85°C), and high off-isolation (75dB at 1MHz). The device supports rail-to-rail analog signals across its full supply range and maintains consistent RON flatness-13Ω max at 5V-enabling accurate gain-switching networks in op-amp circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Configuration | 4:1 analog multiplexer with single COM output and four NO inputs |
| Supply Range | +2V to +12V single supply; enables direct battery operation down to 2.0V |
| RON @ 5V | 115Ω typical; ensures minimal signal attenuation in precision sensor interfaces |
| RON Matching | <2Ω max at 25°C; critical for matched-channel applications like differential muxing |
| tON/tOFF | 60ns/30ns at 5V; supports high-speed data acquisition up to ~8 MHz effective rate |
| Charge Injection | ≤1pC max; minimizes voltage glitch in sample-and-hold and integrator reset circuits |
| Off-Leakage Current | ≤2.5nA at 85°C; preserves accuracy in high-impedance biomedical front-ends |
| Logic Compatibility | TTL/CMOS thresholds (0.8V/2.4V) at 3–11V supplies; eliminates need for level shifters |
Pinout & Package
ISL43640IUZ is packaged in a 10-lead MSOP (M10.118, JEDEC MO-187BA), 3mm × 3mm footprint, 0.5mm pitch, RoHS-compliant Pb-free plus anneal finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive power supply input | Accepts +2V to +12V; powers analog switches and internal logic; 15V absolute max rating |
| GND | Ground reference | Return path for analog and digital circuitry; must be low-impedance for signal integrity |
| INH | Inhibit control input | Active-high; forces all switches open when driven to V+; tied to GND for normal operation |
| COM | Common analog output | Single bidirectional terminal connecting to selected NOx channel; handles rail-to-rail signals |
| NO0–NO3 | Analog input channels | Four normally-open analog inputs; selected via ADD1/ADD2; each rated for ±30mA continuous current |
| ADD1, ADD2 | Digital address inputs | Binary-select two-bit bus; logic "0" ≤0.8V, logic "1" ≥2.4V (at 3–11V supply); enable 4:1 routing |
| N.C. | No internal connection | Unbonded pad; no electrical function; must remain unconnected on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Fully specified at 3V/5V/12V | Guaranteed performance across battery, logic, and industrial supply rails without derating |
| Break-before-make switching | Ensures no signal shorting during channel transitions; tD ≥5ns prevents cross-talk in multiplexed sensor arrays |
| Low charge injection (≤1pC) | Reduces settling error in precision sample-and-hold and integrator reset circuits |
| 100% tested leakage at high temp | ICOM(OFF) and INO(OFF) guaranteed ≤2.5nA at 85°C-critical for long-duration medical monitoring |
| MSOP and QFN packaging | 10-lead MSOP (3×3mm) saves board space vs SOIC; supports high-density portable designs |
Applications
| Battery-Powered Medical Devices | High-Speed Data Acquisition |
|---|---|
Use Scenario: Channel selection in handheld electrocardiograph (ECG) units with 4-lead analog front-end. IC Role / Device Role / Timing Role: 4:1 analog multiplexer routing lead signals to a shared ADC; break-before-make prevents electrode crosstalk. Use Value: 115Ω RON and <2Ω matching preserve amplitude fidelity across leads; 2.5nA leakage avoids baseline drift over extended monitoring. | Use Scenario: Signal routing in automated test equipment (ATE) for multi-sensor DUT characterization. IC Role / Device Role / Timing Role: High-speed analog switch enabling sequential sampling of 4 voltage/current sensors into one digitizer. Use Value: 60ns tON supports >8 MHz effective sampling; 75dB off-isolation suppresses inter-channel feedthrough at 1MHz. |
| Audio/Video Signal Routing | Operational Amplifier Gain Switching |
Use Scenario: Input source selection in portable audio mixers supporting line/mic/Bluetooth inputs. IC Role / Device Role / Timing Role: Bidirectional analog switch selecting between AC-coupled audio sources before amplification. Use Value: Rail-to-rail signal handling accommodates ±1.5V peak audio swing; low 4pF COFF minimizes high-frequency loss. | Use Scenario: Programmable gain stage in portable instrumentation amplifiers using discrete resistor networks. IC Role / Device Role / Timing Role: Precision analog switch selecting feedback resistors to set op-amp closed-loop gain. Use Value: 13Ω RON flatness ensures gain accuracy across full input range; low charge injection prevents output step errors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617EUA+ | 4:1 mux, 100Ω RON @ 5V, but only specified down to +3V supply; no 2V operation | Lacks ultra-low-voltage capability; unsuitable for 2.0–2.7V coin-cell systems | Choose MAX4617EUA+ only if supply is ≥3V and MSOP-10 package compatibility is confirmed |
| ADG1404YRUZ | 4:1 mux, 4.7Ω RON @ 5V, but requires dual ±15V or single +30V supply; not low-voltage compatible | Designed for high-voltage industrial signal chains-not portable/battery use cases | Select ADG1404YRUZ only for high-precision, high-voltage multiplexing where RON <5Ω is mandatory |
Compared with MAX4617EUA+ and ADG1404YRUZ, the ISL43640IUZ uniquely supports 2V–12V single-supply operation with sub-2Ω RON matching and guaranteed break-before-make-making it the only option for battery-powered medical devices requiring rail-to-rail analog switching below 3V.
Availability
ISL43640IUZ is available at Aetrix Electronics and suitable for battery-powered medical devices, high-speed test equipment, portable audio routing, and op-amp gain switching networks requiring stable component supply and long-term design-in support.
Supply support for ISL43640IUZ 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 and mixed-signal ICs for power management, precision analog, and interface applications.
The ISL43640IUZ belongs to Intersil's low-voltage analog switch family, engineered specifically for portable, battery-operated systems demanding rail-to-rail signal handling, ultra-low leakage, and minimal board area-especially in medical, test, and communications equipment.
FAQ
What is the minimum operating voltage for the ISL43640IUZ?
The ISL43640IUZ operates down to +2.0V, enabling direct integration with single-cell Li-ion (2.7–4.2V) and alkaline (2.0–3.2V) battery systems. At 2.7V supply, RON rises to 220Ω and tON increases to 155ns-parameters fully characterized and guaranteed per datasheet Table on Page 4.
Does the ISL43640IUZ support rail-to-rail analog signal switching?
Yes, the ISL43640IUZ supports rail-to-rail analog signals from GND to V+, across its entire +2V to +12V supply range. This is confirmed in the Absolute Maximum Ratings (Page 3) and Electrical Specifications tables (Pages 3–5), where Analog Signal Range is specified as 0 to V+ under all test conditions.
What is the purpose of the INH pin on the ISL43640IUZ?
The INH (inhibit) pin on the ISL43640IUZ is an active-high digital control that forces all four analog switches into the OFF state simultaneously when driven to V+. When pulled to GND, the device operates normally under ADD1/ADD2 address control. This feature enables global signal isolation in safety-critical or power-gated subsystems.
Is the ISL43640IUZ pin-compatible with other variants in the ISL43640 family?
Yes, the ISL43640IUZ shares identical 10-lead MSOP pinout with ISL43640IU and ISL43640IU-T. All three variants use M10.118 package drawing and have identical V+, GND, INH, COM, NO0–NO3, ADD1, ADD2, and N.C. pin assignments-confirmed in the Pinouts section (Page 2) and Ordering Information table (Page 2).
How does the ISL43640IUZ achieve break-before-make timing?
The ISL43640IUZ guarantees break-before-make via internal timing control circuitry that introduces a minimum 5ns delay (tD) between turn-off of the previously selected channel and turn-on of the newly addressed channel. This is measured and specified in the Electrical Specifications table (Page 3) under "Break-Before-Make Time Delay, tD" at full temperature range.
ISL43640IUZ 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):
- 50Ohm
- Channel-to-Channel Matching (ΔRon):
- 500mOhm
- Voltage - Supply, Single (V+):
- 2.7V ~ 12V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- 30ns, 28ns
- -3db Bandwidth:
- -
- Charge Injection:
- 1.2pC
- Channel Capacitance (CS(off), CD(off)):
- 4pF, 11pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
ISL43640IUZ FAQ
1.How can I place an order for ISL43640IUZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL43640IUZ 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 ISL43640IUZ reliable?
The price and inventory of ISL43640IUZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL43640IUZ is usually 5 days.
3.What payment methods are accepted for ISL43640IUZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL43640IUZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL43640IUZ?
ISL43640IUZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL43640IUZ 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 ISL43640IUZ?
For technical support, including ISL43640IUZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL43640IUZ requirements.
6.How does Aetrix verify that ISL43640IUZ is sourced from the original manufacturer or authorized distributors?
All ISL43640IUZ 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 ISL43640IUZ meets industry standards.
7.What is the process for return or replacement of ISL43640IUZ?
All ISL43640IUZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL43640IUZ, 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 ISL43640IUZ part is unused and in its original packaging.
Return procedure for ISL43640IUZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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