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Renesas ISL55142IVZ-T
- Part No.:
- ISL55142IVZ-T
- Manufacturer:
- Renesas
- Category:
- Comparators
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ISL55142IVZ-T.pdf
- Description:
- IC COMPARATOR 2 WINDW 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,149
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Product details
Overview
ISL55142IVZ-T from Intersil is a dual-channel, high-speed 18V CMOS window comparator with programmable input thresholds (CVA/CVB), 9.5ns typical propagation delay, ±50mV overdrive, and three-state digital output encoding per channel. It operates across -40°C to +85°C in 20-lead TSSOP packaging and is used in burn-in ATE systems for voltage-level qualification of flash memory test signals.
For engineers reviewing the ISL55142IVZ-T datasheet, ISL55142IVZ-T pinout, ISL55142IVZ-T application, or ISL55142IVZ-T equivalent, key selection factors include its dual-threshold window comparison capability, user-defined VOH/VOL output rail compatibility with TTL/ECL/LVCMOS logic families, 65MHz maximum operating frequency, and power-down current <10µA.
Technical Context
The ISL55142IVZ-T implements two independent dual-reference comparators per channel-CVA0/CVB0 and CVA1/CVB1-each generating QA/QB outputs that encode VINP into three states: below CVB (0,0), between CVB and CVA (0,1), or above CVA (1,1). Its high-voltage CMOS process supports VCC–VEE up to 18V and common-mode input range from VEE to VCC–5V.
Output levels are set externally via unbuffered VOH and VOL pins, enabling direct interface with system controller logic supplies. The PD pin enables full device power-down with 10µs entry and 15µs exit latency, reducing quiescent current from ~16.5mA (dual-channel active) to <10µA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation delay | 9.5ns typical at ±50mV overdrive - enables synchronization with 65MHz digital test clocks |
| Supply range | VCC–VEE = 10V to 18V - supports wide-swing test voltages including ±3V, ±5V, and 12V/–3V split rails |
| Input common-mode range | VEE to VCC–5V - accommodates 13V input swing while maintaining valid operation |
| Output configuration | Two bits per channel (QA/QB) - provides three-state qualification (Valid Low / Invalid / Valid High) without external logic |
| Power-down current | <10µA - reduces standby power in multi-device ATE backplanes during idle cycles |
| Operating temperature | –40°C to +85°C - qualified for industrial-grade burn-in chamber environments |
| Package | 20-lead TSSOP (M20.173) - surface-mount footprint compatible with automated PCB assembly |
Pinout & Package
ISL55142IVZ-T uses a 20-lead Thin Shrink Small Outline Package (TSSOP), Pb-free, RoHS-compliant, with thermal pad not electrically connected (non-VEE tie).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 12, 13, 14, 15 | CVB0, VINP0, CVA0, PD, VEE, VCC, VOL, VOH, CVB1 | Threshold reference (CVB), window input (VINP), power-down control (PD), negative/positive supply (VEE/VCC), output rail definition (VOL/VOH), second threshold (CVB1) |
| 6, 7, 8, 9, 10, 11, 16, 17, 18, 19, 20 | QA0, QB0, QA1, QB1, NC, VCC, VEE, NC, NC, CVA1, VINP1 | Dual-output bits per channel (QA/QB), no-connect (NC), duplicated supply pins for noise isolation, second channel inputs (CVA1/VINP1) |
Key Features
| Feature | Design Value |
|---|---|
| Dual-threshold window comparison | Each channel independently qualifies VINP against CVA (high threshold) and CVB (low threshold) to generate three-state logic output |
| User-defined output voltage levels | VOH and VOL pins accept external analog supplies to set comparator output high/low rails matching downstream logic families |
| Wide common-mode input range | Accepts inputs from VEE to VCC–5V - eliminates need for level-shifting circuitry when interfacing with high-voltage test sources |
| Fast power-down mode | PD pin reduces total supply current to <10µA in <10µs - enables dynamic power gating in multi-comparator ATE subsystems |
| Logic-family agnostic inputs | Supports TTL, ECL, CMOS, LVCMOS, LVDS, and CML signal sources without external biasing or termination |
Applications
| Burn-in ATE Test Channel | Flash Memory Voltage Supervision |
|---|---|
Use Scenario: Verifying voltage compliance of flash memory I/O lines during high-temperature burn-in stress testing. IC Role / Device Role / Timing Role: Dual-channel window comparator monitoring VIH/VIL margins on DQ/DQS lines with real-time pass/fail flagging. Use Value: Eliminates need for relay-based isolation by accepting ±3V to +12V input swings directly, reducing test head complexity and cost. | Use Scenario: Monitoring power-rail stability and timing margins during flash programming and erase cycles. IC Role / Device Role / Timing Role: Three-state qualification of VCC and VPP supply rails against programmable thresholds to detect brown-out or overvoltage events. Use Value: 9.5ns propagation delay ensures detection of sub-10ns supply glitches that could corrupt write/erase operations. |
| Low-Cost Production ATE | High-Speed Instrumentation Front-End |
Use Scenario: Replacing discrete comparator + logic gate combinations in entry-level automatic test equipment. IC Role / Device Role / Timing Role: Integrated dual-window comparator providing QA/QB outputs directly to FPGA GPIO pins for parallel data capture. Use Value: Reduces BOM count by 4–6 components per channel and shrinks PCB area by >30% versus discrete solutions. | Use Scenario: Digitizing analog sensor outputs with hysteresis-based threshold detection in oscilloscope or logic analyzer front-ends. IC Role / Device Role / Timing Role: High-speed window comparator converting differential or single-ended signals into three-level encoded status flags. Use Value: 65MHz operation supports real-time analysis of fast transient events such as pulse-width modulated motor control signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-threshold comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMH7322MA/NOPB | Single-channel, 8ns propagation delay, fixed internal thresholds, no VOH/VOL programmability | Lacks three-state encoding and user-defined output rails; requires external logic for window qualification | Select when only single-channel comparison is needed and system logic levels are fixed 3.3V/0V |
| MAX961ESA+ | Dual-channel, 4.5ns delay, internal 100mV hysteresis, no separate CVA/CVB inputs | Provides fixed hysteresis instead of independent high/low thresholds; no support for asymmetric window widths | Select for ultra-low-delay applications where symmetric hysteresis suffices and external threshold generation is undesirable |
Compared with LMH7322MA/NOPB and MAX961ESA+, the ISL55142IVZ-T uniquely delivers independent CVA/CVB threshold control per channel, user-configurable VOH/VOL output rails, and native three-state encoding - making it the only option supporting programmable asymmetric window widths and mixed-voltage logic interfacing in a single package.
Availability
ISL55142IVZ-T is available at Aetrix Electronics and suitable for burn-in ATE, flash memory supervision, and low-cost production test systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ISL55142IVZ-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 company, now part of Renesas Electronics, with expertise in high-speed data acquisition and test instrumentation ICs.
The ISL55142IVZ-T belongs to Intersil's high-speed comparator product line, designed specifically for automated test equipment and voltage supervision applications demanding wide input range, fast response, and flexible logic interfacing.
FAQ
What is the function of the PD pin on the ISL55142IVZ-T?
The PD (Power-Down) pin on the ISL55142IVZ-T is a logic input that places the device into ultra-low-power mode when driven high (to VCC). In this state, total supply current drops below 10µA. When PD is tied to VEE (or left unconnected with pull-down), the ISL55142IVZ-T operates normally. Power-down entry and exit times are specified at 10µs and 15µs respectively.
Can the ISL55142IVZ-T interface directly with 1.8V logic systems?
Yes, the ISL55142IVZ-T can interface directly with 1.8V logic systems by connecting the VOH pin to a 1.8V supply and the VOL pin to ground (0V). Its unbuffered VOH/VOL inputs allow full customization of output logic levels, enabling compatibility with LVCMOS, LVTTL, and other low-voltage families without level translators.
What is the maximum common-mode input voltage range supported by the ISL55142IVZ-T?
The ISL55142IVZ-T supports a common-mode input voltage range from VEE to VCC–5V under recommended operating conditions. For example, with VCC = 12V and VEE = –3V (15V total supply), the valid input range extends from –3V to +7V - a 10V span that accommodates large-swing test signals while maintaining accurate window comparison.
How does the ISL55142IVZ-T generate three-state output encoding?
The ISL55142IVZ-T generates three-state encoding per channel using two complementary outputs: QA and QB. When VINP < CVB, both outputs are low (0,0); when CVB < VINP < CVA, QA is low and QB is high (0,1); when VINP > CVA, both outputs are high (1,1). This truth table enables direct mapping to "Valid Low", "Invalid", and "Valid High" states without external combinational logic.
Is the ISL55142IVZ-T pin-compatible with other devices in the ISL5514x family?
No, the ISL55142IVZ-T is not pin-compatible with ISL55141 or ISL55143 variants. It uses a 20-lead TSSOP package (M20.173), whereas ISL55141 uses 14-lead TSSOP or 16-lead QFN, and ISL55143 uses 36-lead TQFN. Pin assignments, channel count, and thermal pad configuration differ across the family - board layout must be specific to ISL55142IVZ-T.
ISL55142IVZ-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Window
- Number of Elements:
- 2
- 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
- :
- 20-TSSOP
ISL55142IVZ-T FAQ
1.How can I place an order for ISL55142IVZ-T through Aetrix?
Please submit a Request for Quotation (RFQ) for ISL55142IVZ-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 ISL55142IVZ-T reliable?
The price and inventory of ISL55142IVZ-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISL55142IVZ-T is usually 5 days.
3.What payment methods are accepted for ISL55142IVZ-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISL55142IVZ-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISL55142IVZ-T?
ISL55142IVZ-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISL55142IVZ-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 ISL55142IVZ-T?
For technical support, including ISL55142IVZ-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISL55142IVZ-T requirements.
6.How does Aetrix verify that ISL55142IVZ-T is sourced from the original manufacturer or authorized distributors?
All ISL55142IVZ-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 ISL55142IVZ-T meets industry standards.
7.What is the process for return or replacement of ISL55142IVZ-T?
All ISL55142IVZ-T units undergo pre-shipment inspection (PSI). If there is an issue with ISL55142IVZ-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 ISL55142IVZ-T part is unused and in its original packaging.
Return procedure for ISL55142IVZ-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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