My Inquiry
My Account
Renesas ISL43L840IVZ-T
- Part No.:
- ISL43L840IVZ-T
- Manufacturer:
- Renesas
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ISL43L840IVZ-T.pdf
- Description:
- IC SWITCH SP4TX2 750MOHM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,092
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ISL43L840IVZ-T from Intersil is a dual 4:1 analog multiplexer/demultiplexer IC designed for low-voltage, rail-to-rail signal routing in portable electronics. It operates from a single +1.6V to +3.6V supply, delivers 0.5Ω ON resistance at +3V, supports 19ns switching time, and handles ±300mA continuous current per channel. It is used in cellular phone audio/video path selection and battery-powered medical sensor interfaces.
For engineers reviewing the ISL43L840IVZ-T datasheet, ISL43L840IVZ-T pinout, ISL43L840IVZ-T application, or ISL43L840IVZ-T equivalent, key selection criteria include guaranteed break-before-make timing, 1.8V logic compatibility with +3V supply, ultra-low leakage (≤30nA at +85°C), RON matching (0.12Ω), and Pb-free TSSOP-16 packaging for high-density portable designs.
Technical Context
The ISL43L840IVZ-T implements two independent 4:1 analog multiplexers using submicron CMOS process, each with dedicated address inputs (ADDA0/1 and ADDB0/1) and common outputs (COMA/COMB). Its internal level shifters translate 1.8V-compatible digital inputs into full-rail gate drive voltages for the analog switches.
It features guaranteed break-before-make operation (tBBM ≥1ns), rail-to-rail analog signal handling (0V to V+), and low charge injection (−96pC typical at +3V), enabling precision signal routing without DC offset disruption in audio and sensor front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Configuration | Dual 4:1 analog multiplexer - enables independent selection of one of four analog inputs per channel to shared COM output. |
| ON Resistance (RON) | 0.5Ω at +3V supply - ensures minimal signal attenuation and voltage drop in low-voltage audio/sensor paths. |
| RON Matching | 0.12Ω max between channels - maintains amplitude consistency across selected signal paths for multi-channel systems. |
| Switching Time (tTRANS) | 19ns at +3V - supports high-speed data acquisition and real-time signal routing up to ~70MHz bandwidth. |
| Supply Range | +1.6V to +3.6V single supply - compatible with Li-ion battery discharge profile and 1.8V/3.3V system rails. |
| Off-Leakage Current | 30nA max at +85°C - preserves signal integrity in high-impedance sensor and medical monitoring circuits. |
| Logic Compatibility | 1.8V CMOS input thresholds (VINH ≥1.4V, VINL ≤0.5V at +3V) - interoperable with modern low-voltage microcontrollers without level shifting. |
Pinout & Package
ISL43L840IVZ-T is packaged in a 16-lead Thin Shrink Small Outline Plastic (TSSOP) package (JEDEC MO-153-AB compliant), measuring 4.9mm × 6.25mm × 1.1mm, with exposed paddle grounded for thermal performance. Pin 1 is marked by a corner chamfer or mold index.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive power supply | Single supply rail (+1.6V to +3.6V); powers analog switches and internal logic; must be applied before any signal or address inputs. |
| GND | Ground reference | Return path for analog signals and digital logic; internal ESD diodes connect all I/O pins to V+ and GND. |
| COMA / COMB | Analog common outputs | Shared output nodes for Channel A and B multiplexers; support rail-to-rail signal swing (0V to V+). |
| A0–A3 / B0–B3 | Analog inputs | Eight bidirectional analog signal terminals; each channel accepts four inputs routed to its respective COM node. |
| ADDA0/1 / ADDB0/1 | Digital address inputs | Two-bit binary control lines per channel; determine which A0–A3 or B0–B3 input connects to COMA or COMB. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low RON | 0.5Ω at +3V enables <1mV drop at 2mA - critical for precision instrumentation and low-noise audio switching. |
| Guaranteed break-before-make | tBBM ≥1ns prevents momentary shorting during channel transitions - essential for avoiding signal glitches in audio and data paths. |
| Rail-to-rail analog operation | Supports input/output signals from 0V to V+ - eliminates need for external biasing in single-supply portable systems. |
| Pb-free RoHS-compliant packaging | TSSOP-16 with 100% matte tin termination - compatible with SnPb and Pb-free reflow profiles per J-STD-020C. |
| Low dynamic power | <0.2µW quiescent power consumption - extends battery life in always-on sensor and communication modules. |
Applications
| Cellular Phone Audio Routing | Portable Medical Sensor Hub |
|---|---|
Use Scenario: Selecting between microphone, headset, speaker, and codec inputs/outputs in a smartphone baseband processor interface. IC Role / Device Role / Timing Role: Dual 4:1 analog multiplexer providing bidirectional, low-distortion signal path switching under CPU control. Use Value: 0.5Ω RON and −100dB crosstalk preserve SNR in voice-band audio; 19ns switching avoids audible artifacts during call handover. |
Use Scenario: Multiplexing ECG, SpO₂, and temperature sensor analog outputs to a shared ADC in a handheld patient monitor. IC Role / Device Role / Timing Role: Low-leakage analog switch enabling high-impedance biopotential signal routing without DC offset drift. Use Value: 30nA max off-leakage at +85°C prevents baseline wander; rail-to-rail operation accommodates varying sensor output ranges. |
| Laptop Docking Station Video Switch | Industrial Handheld Test Equipment |
Use Scenario: Routing HDMI, DisplayPort, or VGA analog video signals between multiple source devices and a single display port on a docking station. IC Role / Device Role / Timing Role: High-bandwidth analog multiplexer supporting video-frequency signals up to 70MHz with minimal group delay variation. Use Value: 65dB off-isolation at 100kHz suppresses interference between adjacent video channels; low RON flatness (0.056Ω) ensures consistent gamma response. |
Use Scenario: Configuring test signal paths (e.g., calibrating multimeter inputs or selecting DMM measurement ranges) in battery-powered field testers. IC Role / Device Role / Timing Role: Precision analog switch enabling automated reconfiguration of measurement front-end topology. Use Value: 0.12Ω RON matching ensures traceable gain accuracy across range selections; 4kV HBM ESD rating withstands lab handling stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4617ESE+ | Single 4:1 mux, 3.5Ω RON at +3V, 125ns tTRANS, SO-16 package | Higher RON and slower switching limit use in high-fidelity audio or fast data acquisition | Select when lower cost and legacy SOIC footprint are prioritized over performance. |
| TMUX1308PWR | Dual 4:1 mux, 0.5Ω RON at +3.3V, 12ns tTRANS, 16-pin QFN (3×3 mm) | Smaller QFN footprint and faster switching, but requires separate VREF for logic threshold tuning | Prefer for space-constrained PCBs needing higher speed; verify 1.8V logic compatibility under actual VCC conditions. |
Compared with MAX4617ESE+ and TMUX1308PWR, the ISL43L840IVZ-T offers best-in-class RON/speed trade-off in TSSOP-16 with guaranteed break-before-make and native 1.8V logic compatibility - making it optimal for cost-sensitive, high-integration portable designs where layout flexibility and proven reliability matter.
Availability
ISL43L840IVZ-T is available at Aetrix Electronics and suitable for cellular phone audio routing, portable medical sensor hubs, laptop docking station video switching, and industrial handheld test equipment requiring stable component supply across extended temperature and long production lifecycles.
Supply support for ISL43L840IVZ-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
Intersil Corporation (now part of Renesas Electronics) is a U.S.-based semiconductor company specializing in precision analog, power management, and interface ICs for industrial, computing, and communications markets.
The ISL43L840 product line was designed specifically for ultra-low-voltage, high-fidelity analog signal routing in battery-powered portable electronics - emphasizing rail-to-rail operation, minimal RON, and robust ESD tolerance.
FAQ
What is the maximum supply voltage rating for ISL43L840IVZ-T?
The absolute maximum supply voltage (V+ to GND) for ISL43L840IVZ-T is 4.7V. This headroom accommodates 10% tolerance on a 3.6V nominal supply and transient overshoot, while the recommended operating range remains +1.6V to +3.6V. Exceeding 4.7V risks permanent damage due to internal ESD diode conduction.
Does ISL43L840IVZ-T support true bidirectional analog signal flow?
Yes, ISL43L840IVZ-T supports fully bidirectional analog signal routing: any A0–A3 or B0–B3 pin can serve as input or output, and COMA/COMB function as bidirectional ports. Signal direction is determined by external circuitry, not internal architecture - enabling flexible use in both multiplexer and demultiplexer configurations.
How does the break-before-make timing work in ISL43L840IVZ-T?
ISL43L840IVZ-T guarantees break-before-make operation with a minimum tBBM of 1ns at +3.3V. During address changes, the previously selected switch opens before the newly addressed switch closes - preventing momentary shorting between analog inputs. This behavior is inherent to the internal logic design and requires no external timing control.
Can ISL43L840IVZ-T operate reliably at 1.6V supply?
Yes, ISL43L840IVZ-T is fully specified down to +1.6V supply. At this voltage, RON increases to ~0.9Ω and tTRANS slows to ~35ns, but all functions remain operational. The device maintains 1.8V logic compatibility (VINH ≥1.0V, VINL ≤0.4V) and rail-to-rail analog range - making it suitable for deep-discharge Li-ion battery operation.
Is ISL43L840IVZ-T pin-compatible with other members of the ISL43L840 family?
Yes, ISL43L840IVZ-T shares identical pinout and functionality with ISL43L840IV, ISL43L840IV-T, and ISL43L840IVZ across the TSSOP-16 package variant. All share the same V+, GND, COMA/COMB, A0–A3/B0–B3, and ADDA0/1/ADDB0/1 pin assignments and electrical behavior - enabling direct substitution within the same footprint.
ISL43L840IVZ-T 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:
- 2
- On-State Resistance (Max):
- 750mOhm
- Channel-to-Channel Matching (ΔRon):
- 120mOhm
- Voltage - Supply, Single (V+):
- 1.6V ~ 3.6V
- Voltage - Supply, Dual (V±):
- -
- Switch Time (Ton, Toff) (Max):
- -
- -3db Bandwidth:
- -
- Charge Injection:
- -96pC
- Channel Capacitance (CS(off), CD(off)):
- 62pF
- Current - Leakage (IS(off)) (Max):
- 4nA
- Crosstalk:
- -100dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
ISL43L840IVZ-T FAQ
1.How can I place an order for ISL43L840IVZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL43L840IVZ-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 ISL43L840IVZ-T reliable?
The price and inventory of ISL43L840IVZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL43L840IVZ-T is usually 5 days.
3.What payment methods are accepted for ISL43L840IVZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL43L840IVZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL43L840IVZ-T?
ISL43L840IVZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL43L840IVZ-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 ISL43L840IVZ-T?
For technical support, including ISL43L840IVZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL43L840IVZ-T requirements.
6.How does Aetrix verify that ISL43L840IVZ-T is sourced from the original manufacturer or authorized distributors?
All ISL43L840IVZ-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 ISL43L840IVZ-T meets industry standards.
7.What is the process for return or replacement of ISL43L840IVZ-T?
All ISL43L840IVZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL43L840IVZ-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 ISL43L840IVZ-T part is unused and in its original packaging.
Return procedure for ISL43L840IVZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL43L840IVZ-T Tags
-
SN74LVC1G3157DBVR
Texas Instruments
-
SN74LVC1G66DBVR
Texas Instruments
-
SN74LVC1G66DCKR
Texas Instruments
-
SN74LVC1G3157DSFR
Texas Instruments
-
1P1G3157QDCKRQ1
Texas Instruments
-
SN74LVC2G66DCUR
Texas Instruments
-
SN74LV4052APWR
Texas Instruments
-
74HC4051D,653
Nexperia USA Inc.
-
SN74LV4051APWR
Texas Instruments
-
CD74HC4052PWR
Texas Instruments
-
CD74HC4051PWR
Texas Instruments
-
TS5A3166DBVR
Texas Instruments
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
