My Inquiry
My Account
Renesas ISL84517IHZ-T
- Part No.:
- ISL84517IHZ-T
- Manufacturer:
- Renesas
- Package:
- SC-74A, SOT-753
- Datasheet:
-
ISL84517IHZ-T.pdf
- Description:
- IC SWITCH SPST-NC X 1 20OHM 5SOT
- Quantity:
- Payment:
- Shipping:
Inventory:2,064
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ISL84517IHZ-T from Intersil is a low-voltage, dual-supply, single-pole/single-throw (SPST) analog switch with normally closed (NC) configuration, operating from ±1.5V to ±6V supplies, delivering 13Ω typical ON resistance at ±5V, 40ns turn-on time, and 20nA max off-leakage at 85°C - deployed in portable medical ultrasound front-ends and battery-powered test equipment signal routing.
For engineers reviewing the ISL84517IHZ-T datasheet, ISL84517IHZ-T pinout, ISL84517IHZ-T application, or ISL84517IHZ-T equivalent, key selection criteria include NC logic behavior, SOT-23-5 package constraints, ±1.5V minimum dual supply operation, and sub-100ns switching performance under 35pF load.
Technical Context
The ISL84517IHZ-T implements a CMOS-based SPST switch architecture with dedicated V+ and V− rails-no ground reference-enabling true bipolar analog signal handling across −6V to +6V. Its internal level shifter translates CMOS-compatible digital inputs (VINH ≥ 3.5V, VINL ≤ 1.5V at ±5V) into full-rail gate drive for the analog pass transistor.
It features symmetrical ESD protection diodes on all analog pins (COM, NC, NO), clamping signals to V+ and V−, requiring strict supply-first sequencing. Leakage current originates from reverse-biased ESD diodes, not inter-pin conduction, and RON flatness of 3Ω ensures minimal harmonic distortion over full input range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Configuration | Normally closed (NC): COM connects to NC when IN = logic low (≤1.5V); breaks connection when IN = logic high (≥3.5V) |
| Supply Range | ±1.5V to ±6V: supports low-power portable systems and higher-voltage industrial signal chains without level translation |
| RON (±5V) | 13Ω typical / 20Ω max: enables <1% gain error in 1kΩ precision amplifier gain-switching networks |
| tON / tOFF | 40ns / 30ns typical: supports multiplexing of audio-band and low-MHz sensor signals with minimal timing skew |
| Charge Injection | 10pC typical / 20pC max: limits voltage glitch to <20mV on 1nF sample-hold capacitors |
| Off-Leakage (85°C) | 20nA max: preserves accuracy in high-impedance electrocardiograph electrode buffers over temperature |
| OFF Isolation | >86dB @ 100kHz: suppresses crosstalk between adjacent channels in multi-channel DVM front-ends |
Pinout & Package
ISL84517IHZ-T uses the 5-lead SOT-23 package (JEDEC MO-178AA, pkg drawing P5.064), measuring 2.80 × 2.60 × 1.30 mm, with gull-wing leads and RoHS-compliant matte tin plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Digital control input | CMOS-compatible logic signal; drives internal level shifter; no internal pull-up/down |
| 2 (V+) | Positive supply rail | Connects to system +1.5V to +6V; powers analog switch core and input logic |
| 3 (V−) | Negative supply rail | Connects to system −1.5V to −6V; completes bias for analog pass transistor and ESD diodes |
| 4 (COM) | Analog common terminal | Primary signal path node; must remain within (V− − 0.3V) to (V+ + 0.3V) during operation |
| 5 (NC) | Normally closed analog terminal | Connected to COM when IN = low; open-circuit when IN = high; no internal connection to other pins |
Key Features
| Feature | Design Value |
|---|---|
| NC configuration | Ensures fail-safe signal continuity in power-loss scenarios-critical for patient-monitoring analog front-ends |
| RON flatness (3Ω) | Maintains consistent channel-to-channel gain matching across ±4.5V input swing in ultrasound receive beamforming |
| 2000V HBM ESD rating | Eliminates need for external TVS diodes in handheld diagnostic device PCB layouts |
| SOT-23-5 footprint | Reduces board area by >60% vs SOIC-8, enabling dense routing in portable spectrum analyzer channel banks |
| Low 350µW quiescent power | Extends battery life in 8-hour continuous-use portable DMMs without thermal derating |
Applications
| Ultrasound Signal Routing | Portable Digital Multimeter (DMM) |
|---|---|
Use Scenario: Multiplexing 16-channel analog receive paths from transducer elements to ADC in handheld ultrasound probe. IC Role / Device Role / Timing Role: NC switch isolates unused channels during beamforming; fast 40ns tON enables real-time channel reconfiguration per scan line. Use Value: 13Ω RON and 3Ω flatness preserve SNR >72dB across full dynamic range; 20nA leakage prevents baseline drift in DC-coupled amplifiers. | Use Scenario: Routing AC/DC voltage, current, and resistance measurement paths in auto-ranging handheld DMM. IC Role / Device Role / Timing Role: NC switch maintains default low-impedance path until measurement mode selects alternate ranges; ±1.5V operation enables direct use with Li-ion battery rails. Use Value: >86dB OFF isolation prevents cross-talk between mV and 1000V ranges; SOT-23-5 saves space in compact 4.5-digit display module. |
| Electrocardiograph (ECG) Front-End | Audio Channel Switching |
Use Scenario: Selecting between limb lead configurations (RA/LA/LL) and chest leads (V1–V6) in ambulatory ECG recorder. IC Role / Device Role / Timing Role: NC switch defaults to standard lead set; logic-controlled break enables rapid reconfiguration without signal interruption during setup. Use Value: 20nA max off-leakage at 85°C avoids baseline wander in high-Z electrode interfaces; ±5V supply supports clinical-grade signal swing. | Use Scenario: Muting/unmuting stereo line outputs and selecting between headphone and speaker drivers in battery-powered audio mixer. IC Role / Device Role / Timing Role: NC switch keeps output connected during idle; fast tOFF <75ns eliminates audible pop during mute transitions. Use Value: 10pC charge injection prevents click/pop artifacts; 400MHz −3dB bandwidth supports full audio spectrum without roll-off. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISL43113IBZ-T | Pin-compatible upgrade with 8Ω RON, 25ns tON, and extended −40°C to +125°C temp range | Better suited for automotive infotainment head-unit audio routing where extended temperature and lower RON matter | Select ISL43113IBZ-T only if design requires >105°C operation or needs <10Ω RON for <0.1% gain error in 100Ω source impedance circuits |
| MAX4517ESA+ | Same NC function and SOT-23-5 package; 15Ω RON, 60ns tON, 30nA off-leakage at 85°C | Legacy drop-in replacement with slightly slower switching and higher leakage-acceptable for non-critical DMM ranges | Choose MAX4517ESA+ only if existing layout validation exists and ±5V-only operation suffices; not recommended for medical or high-speed apps |
Compared with ISL43113IBZ-T, ISL84517IHZ-T offers lower cost and proven stability in portable medical designs but lacks extended temperature support; versus MAX4517ESA+, it delivers tighter leakage and faster switching at identical footprint-making it preferred for new designs targeting clinical-grade signal integrity.
Availability
ISL84517IHZ-T is available at Aetrix Electronics and suitable for portable medical diagnostics, handheld test instrumentation, and battery-powered audio systems requiring stable component supply across long production lifecycles.
Supply support for ISL84517IHZ-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 analog and mixed-signal IC designer focused on precision power management, interface, and signal conditioning solutions.
The ISL8451X family was engineered specifically for low-voltage, dual-supply analog signal routing in space-constrained, battery-operated equipment-emphasizing RON flatness, leakage control, and micro-package integration.
FAQ
What is the logic polarity of the ISL84517IHZ-T control input?
The ISL84517IHZ-T has active-low logic: when IN ≤ 1.5V (logic 0), COM is connected to NC; when IN ≥ 3.5V (logic 1), the switch opens. This NC behavior provides inherent signal continuity during power-up or controller reset-critical for safety-critical paths in ISL84517IHZ-T-based ECG front-ends.
Can the ISL84517IHZ-T operate from a single supply?
No-the ISL84517IHZ-T requires dual supplies (V+ and V−) and is not rated for single-supply operation. Its internal architecture relies on symmetric or asymmetric bipolar rails (±1.5V to ±6V). For single-supply alternatives, refer to the ISL84514/ISL84515 family, which are pin-compatible but optimized for 2V to 12V unipolar rails.
What is the maximum analog signal voltage range supported by the ISL84517IHZ-T?
The ISL84517IHZ-T supports analog signals from (V− − 0.3V) to (V+ + 0.3V), limited by internal ESD diode clamping. At ±5V supplies, this yields a usable range of −5.3V to +5.3V. Exceeding these bounds forward-biases protection diodes, risking latch-up or increased leakage-so signal swing must stay within this window in ISL84517IHZ-T designs.
How does the ISL84517IHZ-T handle supply sequencing?
V+ and V− must be applied before any analog or digital signals to prevent ESD diode conduction. If sequencing cannot be guaranteed, add a 1kΩ series resistor on the IN line (per Figure 6 in FN6030). This protects ISL84517IHZ-T without degrading switching speed-unlike series resistors on analog paths, which would compromise its 13Ω RON advantage.
Is the ISL84517IHZ-T RoHS compliant and moisture-sensitive?
Yes-ISL84517IHZ-T is Pb-free and RoHS compliant (matte tin termination, lead-free molding compound), classified as MSL Level 1 per IPC/JEDEC J-STD-020, meaning it may be stored indefinitely at ≤30°C/60% RH without baking prior to reflow. This simplifies manufacturing for ISL84517IHZ-T in high-mix consumer and medical assembly lines.
ISL84517IHZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- SPST - NC
- Multiplexer/Demultiplexer Circuit:
- 1:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 20Ohm
- Channel-to-Channel Matching (ΔRon):
- -
- Voltage - Supply, Single (V+):
- -
- Voltage - Supply, Dual (V±):
- ±1.5V ~ 6V
- Switch Time (Ton, Toff) (Max):
- 100ns, 75ns
- -3db Bandwidth:
- -
- Charge Injection:
- 10pC
- Channel Capacitance (CS(off), CD(off)):
- 9pF, 9pF
- Current - Leakage (IS(off)) (Max):
- 1nA
- Crosstalk:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-SOT
ISL84517IHZ-T FAQ
1.How can I place an order for ISL84517IHZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL84517IHZ-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 ISL84517IHZ-T reliable?
The price and inventory of ISL84517IHZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL84517IHZ-T is usually 5 days.
3.What payment methods are accepted for ISL84517IHZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL84517IHZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL84517IHZ-T?
ISL84517IHZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL84517IHZ-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 ISL84517IHZ-T?
For technical support, including ISL84517IHZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL84517IHZ-T requirements.
6.How does Aetrix verify that ISL84517IHZ-T is sourced from the original manufacturer or authorized distributors?
All ISL84517IHZ-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 ISL84517IHZ-T meets industry standards.
7.What is the process for return or replacement of ISL84517IHZ-T?
All ISL84517IHZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL84517IHZ-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 ISL84517IHZ-T part is unused and in its original packaging.
Return procedure for ISL84517IHZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISL84517IHZ-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…
