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Renesas ISL43640IRZ-T7A
- Part No.:
- ISL43640IRZ-T7A
- Manufacturer:
- Renesas
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
ISL43640IRZ-T7A.pdf
- Description:
- IC SWITCH SP4T X 1 50OHM 16QFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ISL43640IRZ-T7A from Intersil is a low-voltage, single-supply 4:1 analog multiplexer switch configured for bidirectional rail-to-rail signal routing in portable and precision instrumentation systems. It operates from +2V to +12V, delivers 45Ω ON resistance at +12V, 115Ω at +5V, and 190Ω at +3V, with guaranteed break-before-make switching and 1nA off-leakage at 25°C.
For engineers reviewing the ISL43640IRZ-T7A datasheet, ISL43640IRZ-T7A pinout, ISL43640IRZ-T7A application, or ISL43640IRZ-T7A equivalent, key selection criteria include supply-voltage-dependent RON, tON/tOFF timing across 3V/5V/12V rails, CMOS/TTL logic compatibility, and QFN-16 package thermal performance (θJA = 62°C/W).
Technical Context
The ISL43640IRZ-T7A implements a CMOS-based 4-channel analog MUX with dual address inputs (ADD1, ADD2) and an active-low inhibit (INH) control that forces all switches open simultaneously. Its internal level shifters translate TTL/CMOS logic thresholds (0.8V/2.4V at 5V) to full-rail gate drive, enabling robust operation across 3V–12V supplies.
Break-before-make timing (5–35ns) prevents signal shorting during channel transitions, while charge injection (≤3pC) and low off-capacitance (COFF = 4pF, CCOM(OFF) = 11pF) preserve signal integrity in sample-and-hold and high-frequency multiplexing applications up to 100MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Configuration | 4:1 analog multiplexer/demultiplexer with single-pole, four-throw (SP4T) topology |
| Supply Range | +2V to +12V single supply - supports battery-powered 3V systems and industrial 12V rails without level-shifting |
| RON @ 5V | 115Ω typical - enables low insertion loss in audio, sensor, and DAC/ADC signal paths |
| tON/tOFF @ 5V | 60ns/30ns - ensures fast channel switching for real-time data acquisition and ATE |
| Off-Leakage Current | 1nA max at 25°C - critical for high-impedance sensor front-ends and precision integrator reset circuits |
| Charge Injection | 3pC max - minimizes voltage glitch in sample-and-hold and switched-capacitor networks |
| Package | 16-lead QFN (3×3 mm, 0.5 mm pitch) - provides low thermal resistance (θJA = 62°C/W) and space-efficient layout |
Pinout & Package
ISL43640IRZ-T7A is housed in a 16-lead QFN package (JEDEC MO-220VEED-2 compliant) with exposed thermal pad, 3×3 mm body, 0.5 mm lead pitch, and moisture sensitivity level 1. Pin 1 is marked by corner chamfer or mold index.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive power supply input | Supplies internal CMOS switches and logic; must be applied before analog signals to avoid ESD diode conduction |
| GND | Ground reference | Return path for analog signals and digital logic; forms low-impedance reference for rail-to-rail operation |
| INH | Inhibit control input | Active-low global disable: pulls all switches open when high, enabling system-level signal isolation |
| COM | Common analog terminal | Single output/input node shared across all four channels; connects to ADC input or amplifier feedback path |
| NO0–NO3 | Normally-open analog terminals | Four independent input/output channels selected via ADD1/ADD2; support bidirectional signal flow |
| ADD1, ADD2 | Digital address inputs | Binary-encoded channel select (00→NO0, 01→NO1, 10→NO2, 11→NO3); TTL/CMOS compatible |
| N.C. | No internal connection | Pins 1, 3, 4, 15 on QFN - unused; must be left floating or grounded per PCB layout best practices |
Key Features
| Feature | Design Value |
|---|---|
| Guaranteed break-before-make | 5–35ns delay prevents momentary shorting between channels during address transitions |
| RON matching | <2Ω max mismatch between channels - ensures consistent gain and offset in multi-channel sensor arrays |
| Low power consumption | <3µW quiescent - extends battery life in handheld medical and test equipment |
| High off-isolation | 75dB at 1MHz - suppresses crosstalk in RF and ultrasound front-end multiplexing |
| Pb-free RoHS compliance | Matte tin termination with anneal process - compatible with SnPb and Pb-free reflow profiles |
Applications
| Battery-Powered Medical Devices | High-Speed Data Acquisition |
|---|---|
Use Scenario: Electrocardiograph (ECG) front-end with 4-lead electrode selection and programmable gain amplification. IC Role / Device Role / Timing Role: 4:1 analog MUX routes individual electrode signals to a common instrumentation amplifier and ADC input. Use Value: 190Ω RON at 3V preserves signal fidelity from high-impedance biopotential sources; 1nA leakage avoids baseline drift. | Use Scenario: Automated test equipment (ATE) scanning multiple DUTs into a shared digitizer channel. IC Role / Device Role / Timing Role: High-speed channel selector enabling sequential sampling of 4 sensors or devices under test. Use Value: 60ns tON at 5V allows sub-100ns per-channel settling; break-before-make prevents inter-channel shorts. |
| Audio Signal Routing | Industrial Sensor Multiplexing |
Use Scenario: Portable audio mixer selecting among four line-level analog inputs before DSP processing. IC Role / Device Role / Timing Role: Bidirectional analog switch handling line-level signals (±2V) with rail-to-rail swing. Use Value: 45Ω RON at 12V minimizes insertion loss; 75dB off-isolation eliminates audible crosstalk between channels. | Use Scenario: PLC analog input module aggregating temperature, pressure, and current loop signals onto one ADC. IC Role / Device Role / Timing Role: Precision MUX interfacing 4 industrial sensors with ±10V or 4–20mA conditioning circuitry. Use Value: Full 12V supply operation supports industrial voltage ranges; RON flatness ≤18Ω ensures linear response across signal span. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617ESE+ | 16-pin SOIC package; 60Ω RON @ 5V; no inhibit pin; higher 10nA leakage | Lacks INH control and QFN thermal performance; suited for prototyping on through-hole boards | Select when board space is unconstrained and global disable is not required |
| ADG1404YRUZ | 16-pin TSSOP; 4.7Ω RON @ 5V; ±15V dual supply only; 200pC charge injection | Requires bipolar supplies; superior RON but unsuitable for single 3V battery operation | Select for ultra-low RON in fixed 5V/±15V systems where charge injection is less critical |
Compared with MAX4617ESE+ and ADG1404YRUZ, ISL43640IRZ-T7A uniquely balances single-supply flexibility (2–12V), integrated inhibit control, QFN thermal efficiency, and sub-3pC charge injection-making it optimal for portable, low-power, and high-fidelity analog routing where supply headroom and layout density matter.
Availability
ISL43640IRZ-T7A is available at Aetrix Electronics and suitable for battery-powered medical devices, automated test equipment, portable audio interfaces, and industrial sensor signal conditioning requiring stable component supply and RoHS-compliant sourcing.
Supply support for ISL43640IRZ-T7A 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 ISL43640IRZ-T7A belongs to Intersil's low-voltage analog switch family, engineered for rail-to-rail signal integrity, minimal power consumption, and compact packaging in portable and instrumentation systems.
FAQ
What supply voltage range does the ISL43640IRZ-T7A support, and how does RON vary across that range?
The ISL43640IRZ-T7A operates from a single +2V to +12V supply. RON is 190Ω typical at +3V, 115Ω at +5V, and 45Ω at +12V. This inverse relationship reflects improved channel conductivity at higher V+, directly impacting insertion loss in sensor and audio signal paths. The device is fully specified across all three voltages with 10% tolerance margins.
Does the ISL43640IRZ-T7A provide break-before-make switching, and what is the guaranteed timing window?
Yes, the ISL43640IRZ-T7A guarantees break-before-make operation with a minimum time delay (tD) of 3ns at +12V and up to 35ns across the full temperature range (–40°C to +85°C). This prevents momentary shorting between NOx channels during address transitions, which is essential for protecting downstream amplifiers and ADCs in multi-channel systems.
What is the maximum allowable analog signal voltage range for the ISL43640IRZ-T7A?
The ISL43640IRZ-T7A supports rail-to-rail analog signals from 0V to V+. When V+ = +5V, the analog input range is 0V to +5V; at V+ = +12V, it extends to 0V to +12V. Signals exceeding V+ or going below GND forward-bias internal ESD diodes, so external clamping is required if overvoltage conditions are possible.
How does the INH (inhibit) pin function on the ISL43640IRZ-T7A, and what logic levels activate it?
The INH pin is an active-high digital control that opens all four analog switches simultaneously when driven to V+. With V+ = +5V, INH ≥ 2.4V disables all channels; at V+ = +12V, INH ≥ 2.5V suffices. Pulling INH to GND enables normal address-controlled operation. This feature allows system-level signal isolation without changing ADD1/ADD2 states.
Is the ISL43640IRZ-T7A RoHS compliant, and what packaging options are offered?
Yes, the ISL43640IRZ-T7A is RoHS compliant with Pb-free plus anneal construction: matte tin termination and lead-free molding compound. It is supplied in tape-and-reel format (T7A suffix) in the 16-lead QFN package (3×3 mm, L16.3X3 drawing), rated MSL Level 1 for unlimited floor life.
ISL43640IRZ-T7A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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:
- 16-QFN (3x3)
ISL43640IRZ-T7A FAQ
1.How can I place an order for ISL43640IRZ-T7A through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL43640IRZ-T7A 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 ISL43640IRZ-T7A reliable?
The price and inventory of ISL43640IRZ-T7A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL43640IRZ-T7A is usually 5 days.
3.What payment methods are accepted for ISL43640IRZ-T7A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL43640IRZ-T7A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL43640IRZ-T7A?
ISL43640IRZ-T7A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL43640IRZ-T7A 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 ISL43640IRZ-T7A?
For technical support, including ISL43640IRZ-T7A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL43640IRZ-T7A requirements.
6.How does Aetrix verify that ISL43640IRZ-T7A is sourced from the original manufacturer or authorized distributors?
All ISL43640IRZ-T7A 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 ISL43640IRZ-T7A meets industry standards.
7.What is the process for return or replacement of ISL43640IRZ-T7A?
All ISL43640IRZ-T7A units undergo pre-shipment inspection (PSI). If there is an issue with ISL43640IRZ-T7A, 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 ISL43640IRZ-T7A part is unused and in its original packaging.
Return procedure for ISL43640IRZ-T7A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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