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Renesas ISL55141IRZ
- Part No.:
- ISL55141IRZ
- Manufacturer:
- Renesas
- Category:
- Comparators
- Package:
- 16-TFQFN Exposed Pad
- Datasheet:
-
ISL55141IRZ.pdf
- Description:
- IC COMPARATOR 1 WINDW 16QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,012
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Product details
Overview
ISL55141IRZ from Intersil is a single-channel, high-speed 18V CMOS window comparator with dual independent thresholds (CVA0/CVB0), three-state digital output (QA0/QB0), 9.5ns typical propagation delay, and ±50mV input overdrive capability - deployed in burn-in ATE systems for Flash device voltage qualification.
For engineers reviewing the ISL55141IRZ datasheet, ISL55141IRZ pinout, ISL55141IRZ application, or ISL55141IRZ equivalent, this page delivers verified package mapping (16-lead 4×4 QFN), confirmed threshold programmability, user-defined VOH/VOL rail compatibility, power-down functionality, and real-world timing behavior at 65MHz operation.
Technical Context
The ISL55141IRZ implements a dual-reference window comparator architecture where VINP0 is compared simultaneously against CVA0 (high threshold) and CVB0 (low threshold), generating two binary outputs (QA0, QB0) that encode input state as Valid Low, Invalid (no-man's-land), or Valid High. Its high-voltage CMOS process supports rail-to-rail common-mode input range from VEE to VCC–5V.
Output logic levels are set externally via unbuffered analog supplies VOH and VOL, enabling direct interface with TTL, LVCMOS, ECL, and CML logic families. The PD pin enables <10µA power-down mode with 10µs entry and 15µs wake-up latency, while thermal pad (VEE-connected) provides low-θJC = 3°C/W heat dissipation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation delay | 9.5ns typical at ±50mV overdrive - enables synchronization with 65MHz digital test clocks |
| Supply voltage range | 10V to 18V (VCC–VEE) - supports wide-swing test voltages up to ±9V referenced to VEE |
| Input common-mode range | VEE to VCC–5V - accepts inputs down to negative rail, critical for power supervision of split-rail systems |
| Power-down current | <10µA - reduces standby power in multi-comparator ATE racks during idle cycles |
| Operating frequency | 65MHz maximum - qualifies high-speed signal edges in Flash memory burn-in testing |
| Output drive capability | 18Ω to 37Ω typical output resistance - drives 15pF loads with sub-2ns rise/fall times |
| Input offset voltage | ±50mV max - ensures accurate 1-VIH/0-VIL logic level detection across temperature |
Pinout & Package
ISL55141IRZ is housed in a 16-lead 4×4 mm QFN package (PKG DWG L16.4X4A) with exposed thermal pad electrically connected to VEE. Pin 1 is located in top-left corner adjacent to index area; pin numbering proceeds counterclockwise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | CVB0 | Low-threshold reference input for channel 0 - sets 0-VIL boundary in window comparison |
| 2 | VINP0 | Common input node for both comparators - accepts test signal under evaluation |
| 3 | CVA0 | High-threshold reference input for channel 0 - sets 1-VIH boundary in window comparison |
| 4 | PD | Active-low power-down control - tie to VEE for normal operation; connect to VCC to enter <10µA sleep |
| 5 | VEE | Negative supply rail - also connects to thermal pad for heat sinking and defines logic low reference |
| 6 | VCC | Positive supply rail - powers internal circuitry and establishes upper voltage limit for analog core |
| 7 | VOL | User-defined logic low rail - sets QA0/QB0 "0" output voltage; must be ≥VEE+0.5V |
| 8 | VOH | User-defined logic high rail - sets QA0/QB0 "1" output voltage; must be ≤VCC–0.5V |
| 9 | QA0 | Channel A output - driven to VOH when VINP0 > CVA0, else to VOL |
| 10 | QB0 | Channel B output - driven to VOH when VINP0 > CVB0, else to VOL |
| 11–16 | NC | No internal connection - floating pins; no PCB routing required |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent thresholds | CVA0 and CVB0 allow precise definition of VIH/VIL windows without external resistive dividers |
| User-configurable output rails | VOH/VOL pins enable direct interfacing with mixed-voltage logic domains (e.g., 5V controller + 3.3V FPGA) |
| Three-state window qualification | QA0/QB0 pair encodes input as Valid Low (0,0), Invalid (0,1), or Valid High (1,1) - eliminates need for external decode logic |
| Power-down mode | Reduces quiescent current from ~8.25mA/comparator to <10µA - essential for thermal management in dense ATE modules |
| Negative rail compatible input | Common-mode range includes VEE - supports testing of negative-biased Flash programming voltages or op-amp output monitoring |
Applications
| Burn-in ATE Testing | Fast Power Supervision |
|---|---|
|
Use Scenario: Verifying voltage margins of NAND Flash devices during high-temperature burn-in cycles using ±3V to ±9V test rails. IC Role / Device Role / Timing Role: Window comparator qualifying VINP0 against programmable CVA0/CVB0 thresholds to flag out-of-spec VIH/VIL violations in real time. Use Value: 9.5ns propagation delay enables sampling at 65MHz clock rates, capturing transient glitches missed by slower comparators. |
Use Scenario: Monitoring DC-DC converter output stability in industrial PLCs where rapid undervoltage/overvoltage detection prevents system latch-up. IC Role / Device Role / Timing Role: Dual-threshold comparator detecting valid high/low states while rejecting noise-induced false triggers in noisy 24V rail environments. Use Value: Common-mode range extending to VEE allows direct sensing of negative-going transients on split-supply power stages. |
| Logic-Level Translation | Instrumentation Signal Conditioning |
|
Use Scenario: Converting differential CML clock signals into single-ended LVCMOS logic for FPGA clock domain crossing in high-speed test instrumentation. IC Role / Device Role / Timing Role: Threshold-programmable receiver accepting CML inputs and generating QA0/QB0 outputs referenced to FPGA's 1.8V VOH/VOL rails. Use Value: User-defined VOH/VOL eliminates level-shifter ICs, reducing BOM count and signal path skew in timing-critical paths. |
Use Scenario: Digitizing analog sensor outputs (e.g., thermocouple amplifiers) into three-state logic for microcontroller ADC pre-screening in environmental chambers. IC Role / Device Role / Timing Role: Window comparator converting continuous analog voltage into discrete Valid Low/Invalid/Valid High states before digitization. Use Value: 65MHz bandwidth supports fast transient detection in thermal runaway scenarios without aliasing artifacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-threshold comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV3601DR | Single-channel, 1.8V–5.5V supply, 1.8ns propagation delay, no user-defined VOH/VOL - fixed CMOS outputs | Limited to low-voltage logic domains; lacks 18V swing and negative rail support | Select when ultra-fast response (<2ns) and low supply voltage are prioritized over wide input range |
| MAX961ESA+ | Single-channel, ±5V supply max, 4.5ns delay, internal references only - no external CVA/CVB pins | Requires external resistor networks to set thresholds; no power-down pin | Choose for cost-sensitive, fixed-threshold applications where layout space is constrained and 18V operation is unnecessary |
Compared with TLV3601DR and MAX961ESA+, the ISL55141IRZ uniquely combines 18V operation, user-programmable thresholds and output rails, and power-down capability - making it irreplaceable in high-voltage ATE and Flash test systems requiring configurable window detection.
Availability
ISL55141IRZ is available at Aetrix Electronics and suitable for burn-in ATE, fast supervisory power control, and instrumentation requiring stable component supply despite its legacy status.
Supply support for ISL55141IRZ 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 provider, now part of Renesas Electronics, with expertise in high-speed data acquisition and test equipment ICs.
The ISL55141IRZ belongs to Intersil's high-speed comparator product line, engineered specifically for automated test equipment requiring wide common-mode range, programmable thresholds, and logic-level flexibility in Flash memory validation.
FAQ
What is the function of the PD pin on the ISL55141IRZ?
The PD (Power-Down) pin on the ISL55141IRZ is an active-high logic input that places the device into ultra-low-power mode when driven to VCC, reducing supply current to less than 10µA. When tied to VEE (ground in single-supply configurations), the ISL55141IRZ operates normally. Entry and exit times are 10µs and 15µs respectively, making it suitable for duty-cycled ATE test sequences.
Can the ISL55141IRZ operate with negative supply voltages?
Yes, the ISL55141IRZ supports true dual-supply operation with VEE as low as –9V relative to VCC (i.e., VCC–VEE ≤ 18V). Its input common-mode range extends down to VEE, and the thermal pad is internally connected to VEE - enabling direct monitoring of negative-rail signals in power supervision and Flash programming applications.
How are VOH and VOL used in the ISL55141IRZ?
VOH and VOL are unbuffered analog supply pins that define the logic-high and logic-low output voltage levels for both QA0 and QB0. The ISL55141IRZ outputs switch directly between these rails - not internal VCC/VEE - allowing seamless interface with diverse logic families (TTL, LVCMOS, ECL) without external level shifters. VOH must exceed VOL by ≥1V and remain within VEE+1V to VCC–0.5V.
What does the truth table for QA0 and QB0 indicate in practical use?
The QA0/QB0 truth table encodes VINP0 relative to CVA0 and CVB0 into three distinct states: (0,0) = Valid Low (VINP0 < CVB0), (0,1) = Invalid (CVB0 < VINP0 < CVA0), and (1,1) = Valid High (VINP0 > CVA0). This eliminates post-processing logic in ATE controllers, enabling immediate pass/fail decisions on VIH/VIL compliance during Flash device characterization.
Is the ISL55141IRZ still in production or supported?
The ISL55141IRZ is marked "No longer available or supported" in the official Intersil (Renesas) ordering information. However, Aetrix Electronics maintains legacy inventory and offers full technical documentation, traceable sourcing, and lifecycle coordination support for existing designs dependent on the ISL55141IRZ in industrial and test equipment applications.
ISL55141IRZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 16-TFQFN Exposed Pad
- Series:
- -
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- Window
- Number of Elements:
- 1
- Output Type:
- -
- Voltage - Supply, Single/Dual (±):
- 10V ~ 18V
- :
- 50mV @ -3V, 12V
- Voltage - Input Offset (Max):
- 0.025µA @ -3V, 12V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 12.5mA
- Current - Quiescent (Max):
- -
- CMRR, PSRR (Typ):
- 15ns
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Surface Mount
- :
- 16-QFN (4x4)
ISL55141IRZ FAQ
1.How can I place an order for ISL55141IRZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL55141IRZ 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 ISL55141IRZ reliable?
The price and inventory of ISL55141IRZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL55141IRZ is usually 5 days.
3.What payment methods are accepted for ISL55141IRZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL55141IRZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL55141IRZ?
ISL55141IRZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL55141IRZ 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 ISL55141IRZ?
For technical support, including ISL55141IRZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL55141IRZ requirements.
6.How does Aetrix verify that ISL55141IRZ is sourced from the original manufacturer or authorized distributors?
All ISL55141IRZ 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 ISL55141IRZ meets industry standards.
7.What is the process for return or replacement of ISL55141IRZ?
All ISL55141IRZ units undergo pre-shipment inspection (PSI). If there is an issue with ISL55141IRZ, 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 ISL55141IRZ part is unused and in its original packaging.
Return procedure for ISL55141IRZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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