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Renesas ISL84522IB-T
- Part No.:
- ISL84522IB-T
- Manufacturer:
- Renesas
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ISL84522IB-T.pdf
- Description:
- IC SW SPST-NOX4 100OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,516
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Product details
Overview
ISL84522IB-T from Intersil is a quad single-pole/single-throw (SPST) analog switch with four normally open (NO) channels, designed for precision signal routing in low-voltage systems. It operates from a single +2V to +12V or dual ±2V to ±6V supply, delivers 125Ω max RON at +5V, 60ns tON/20ns tOFF, and <1nA leakage at 85°C - enabling high-fidelity switching in portable medical ultrasound and battery-powered handheld instrumentation.
For engineers reviewing the ISL84522IB-T datasheet, ISL84522IB-T pinout, ISL84522IB-T application, or ISL84522IB-T equivalent, key selection criteria include its guaranteed RON matching (<6Ω), break-before-make timing (not applicable), TTL/CMOS compatibility, and SOIC-16 package suitability for space-constrained PCB layouts requiring low-power analog multiplexing.
Technical Context
The ISL84522IB-T uses CMOS architecture with independent gate drive for each of its four NO switches, enabling simultaneous or staggered channel control without crosstalk-induced coupling. Its level-shifting logic accepts 0.8V/2.4V thresholds across +2.5V to +10V V+ supplies, while internal ESD diodes (2000V HBM) clamp analog pins between V+ and V− to prevent overvoltage damage during signal transients.
Supply sequencing requires V+ and V− to be established before analog or digital signals to avoid forward-biasing protection diodes. The device maintains consistent performance across bipolar (±5V) and single-supply (+5V) configurations, with RON flatness ≤15Ω and off-isolation >90dB at 100kHz - critical for preserving signal integrity in high-frequency multiplexed sensor front-ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RON (max) | 125Ω at +5V supply - ensures minimal signal attenuation in 50Ω–1kΩ impedance interfaces |
| tON/tOFF | 60ns/20ns at +5V - supports >10MHz multiplexing rates in real-time data acquisition |
| Leakage (max) | 10nA at 85°C - preserves DC accuracy in high-impedance sensor paths and precision DAC/ADC interfaces |
| Supply Range | +2V to +12V single or ±2V to ±6V dual - enables direct integration with Li-ion, 3.3V, and 5V system rails |
| Off Isolation | >90dB at 100kHz - suppresses channel-to-channel feedthrough in multi-signal routing applications |
| Charge Injection | 5pC max - minimizes voltage glitches during switching in sample-and-hold and gain-switching networks |
| ESD Rating | 2000V per MIL-STD-883 Method 3015.7 - withstands handling and board-level electrostatic events |
Pinout & Package
ISL84522IB-T is housed in a 16-lead narrow-body SOIC (M16.15) package with 1.27mm lead pitch, 10.0mm × 4.0mm body dimensions, and 1.75mm max height - compatible with standard reflow profiles and automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | IN1–IN4 | Digital control inputs; active-high logic (0.8V/2.4V thresholds) enabling individual NO switch activation |
| 2, 6, 10, 14 | COM1–COM4 | Analog common terminals; connect to signal source or load depending on routing topology |
| 3, 7, 11, 15 | NO1–NO4 | Normally open analog outputs; conduct only when corresponding INx = HIGH |
| 4 | V− | Negative supply rail; tied to GND for single-supply operation or used as −V for bipolar biasing |
| 8 | GND | Ground reference for logic circuitry and level shifters; isolated from analog signal path |
| 12 | V+ | Positive supply rail; powers both analog switches and digital interface stages |
| 16 | N.C. | No internal connection; left unconnected per datasheet guidance |
Key Features
| Feature | Design Value |
|---|---|
| Four independently controlled NO switches | Enables discrete signal path selection without shared control bus contention or timing skew |
| RON matching <6Ω (full temp range) | Ensures uniform gain/attenuation across channels in multi-path filter banks or calibration circuits |
| Break-before-make timing (N/A for ISL84522) | Eliminates risk of short-circuit transients during channel transitions - inherent to NO-only topology |
| TTL/CMOS-compatible inputs | Direct interfacing with microcontrollers, FPGAs, and ASICs without level-shifting circuitry |
| 16-pin SOIC package with Pb-free finish | Supports RoHS-compliant manufacturing and legacy PCB assembly processes |
Applications
| Battery-Powered Medical Instrumentation | Portable Communications Equipment |
|---|---|
Use Scenario: Ultrasound probe front-end with time-gain compensation and multi-element beamforming. IC Role / Device Role / Timing Role: Quad SPST switch routes analog echo signals from 4 transducer elements to shared ADC channel under microcontroller control. Use Value: 125Ω RON and <10nA leakage preserve weak RF signal amplitude and DC offset stability across temperature. |
Use Scenario: RF "Tee" switching in military handheld radios for antenna diversity and transmit/receive path isolation. IC Role / Device Role / Timing Role: Analog switch selects between primary and backup antennas while maintaining 50Ω impedance match. Use Value: >90dB off-isolation at 100kHz prevents cross-coupling between receive paths during frequency-hopping operation. |
| Industrial Sensor Signal Conditioning | Audio/Video Multiplexing in Embedded Systems |
Use Scenario: Multi-sensor data logger sampling thermocouples, RTDs, and strain gauges via shared precision amplifier. IC Role / Device Role / Timing Role: ISL84522IB-T sequentially connects sensors to instrumentation amplifier input with minimal charge injection. Use Value: 5pC max charge injection avoids baseline shifts in high-gain, low-noise amplification stages. |
Use Scenario: HDMI/DisplayPort auxiliary channel switching in compact docking stations supporting multiple video sources. IC Role / Device Role / Timing Role: Routes DDC/CEC control signals between host SoC and connected displays using NO configuration. Use Value: 60ns tON enables sub-frame switching latency for dynamic display enumeration and EDID handshaking. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX4522ESE+ | 100Ω RON max at +5V; identical SOIC-16 pinout and NO configuration | Slightly lower leakage (5nA max) but higher tON (75ns) - better for ultra-low-leakage DC systems, less ideal for >8MHz switching | Select MAX4522ESE+ when leakage-critical sensor front-ends outweigh speed requirements |
| DG412DN | 120Ω RON max; same 16-pin SOIC footprint but requires external VSS tie for single-supply use | Higher power consumption (5μW vs <1μW); lacks integrated ESD protection - needs external TVS diodes | Choose DG412DN only if legacy design reuse mandates Maxim pin compatibility and layout constraints prohibit redesign |
Compared with MAX4522ESE+ and DG412DN, the ISL84522IB-T offers superior power efficiency (<1μW), tighter RON matching (<6Ω), and built-in 2000V ESD protection - making it optimal for new designs prioritizing battery life, signal fidelity, and robustness in portable equipment.
Availability
ISL84522IB-T is available at Aetrix Electronics and suitable for battery-powered medical instrumentation, portable communications equipment, industrial sensor signal conditioning, and audio/video multiplexing requiring stable component supply and long-term production continuity.
Supply support for ISL84522IB-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 is a precision analog and power management semiconductor specialist, now part of Renesas Electronics, delivering high-reliability solutions for industrial, infrastructure, and mobile computing markets.
The ISL84522IB-T belongs to Intersil's low-voltage analog switch family engineered for signal integrity in portable and battery-operated systems - emphasizing low RON, nanosecond switching, and ultra-low leakage across wide supply ranges.
FAQ
What is the maximum supply voltage rating for the ISL84522IB-T?
The ISL84522IB-T has an absolute maximum supply rating of 15V between V+ and V−, with recommended operating range of ±2V to ±6V (dual supply) or +2V to +12V (single supply). Exceeding 15V risks permanent damage due to internal ESD diode breakdown, and operation below ±2V degrades RON and switching speed - verified per FN6031 Rev 4.00 Absolute Maximum Ratings table.
Does the ISL84522IB-T support break-before-make switching?
No, the ISL84522IB-T does not implement break-before-make timing because it contains only normally open (NO) switches - unlike the ISL84523 which integrates two NO and two NC channels for SPDT functionality. Each ISL84522IB-T channel operates independently with no inter-channel timing coordination, eliminating short-circuit risk during state changes.
Can the ISL84522IB-T be used with a single 3.3V supply?
Yes, the ISL84522IB-T operates fully within specification at +3.3V (V+ = 3.3V, V− = GND), delivering 260Ω max RON, 120ns tON, and <10nA leakage at 85°C. Its TTL/CMOS-compatible inputs accept 0.8V/2.4V logic thresholds at this voltage, enabling direct connection to 3.3V microcontrollers without level translation - confirmed in Electrical Specifications 3V Supply section of FN6031.
What is the thermal resistance (θJA) of the ISL84522IB-T in SOIC package?
The ISL84522IB-T in 16-lead SOIC (M16.15) package has a typical junction-to-ambient thermal resistance (θJA) of 115°C/W when mounted on a high thermal conductivity test board in free air - specified in FN6031 Rev 4.00 Thermal Information table. This value assumes standard JEDEC 2-layer board conditions; actual θJA improves with copper pour and thermal vias.
Is the ISL84522IB-T pin-compatible with industry-standard analog switches?
Yes, the ISL84522IB-T is pin-compatible with DG411, DG412, and DG413 devices in SOIC-16 packages, sharing identical pin assignments for IN, COM, NO, V+, V−, and GND. This allows drop-in replacement in existing designs targeting improved RON flatness (≤15Ω), lower leakage (<10nA), and enhanced ESD robustness (2000V HBM) - as stated in the Features section of FN6031.
ISL84522IB-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NO
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 4
- On-State Resistance (Max):
- 100Ohm
- Channel-to-Channel Matching (ΔRon):
- 1Ohm
- Voltage - Supply, Single (V+):
- 2V ~ 12V
- Voltage - Supply, Dual (V±):
- ±2V ~ 6V
- Switch Time (Ton, Toff) (Max):
- 80ns, 30ns
- -3db Bandwidth:
- -
- Charge Injection:
- 1pC
- Channel Capacitance (CS(off), CD(off)):
- 2pF, 2pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -90dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
ISL84522IB-T FAQ
1.How can I place an order for ISL84522IB-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL84522IB-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 ISL84522IB-T reliable?
The price and inventory of ISL84522IB-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL84522IB-T is usually 5 days.
3.What payment methods are accepted for ISL84522IB-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL84522IB-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL84522IB-T?
ISL84522IB-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL84522IB-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 ISL84522IB-T?
For technical support, including ISL84522IB-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL84522IB-T requirements.
6.How does Aetrix verify that ISL84522IB-T is sourced from the original manufacturer or authorized distributors?
All ISL84522IB-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 ISL84522IB-T meets industry standards.
7.What is the process for return or replacement of ISL84522IB-T?
All ISL84522IB-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL84522IB-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 ISL84522IB-T part is unused and in its original packaging.
Return procedure for ISL84522IB-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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