Renesas ISL55141IVZ-T

Overview

ISL55141IVZ-T from Intersil is a single-channel, high-speed 18V CMOS window comparator with dual independent thresholds (CVA0/CVB0), 9.5ns typical propagation delay, ±50mV input offset voltage, and operation over -40°C to +85°C. It supports three-state digital output qualification of analog inputs for ATE burn-in and power supervision systems.

For engineers reviewing the ISL55141IVZ-T datasheet, ISL55141IVZ-T pinout, ISL55141IVZ-T application, or ISL55141IVZ-T equivalent, this device delivers precise 1-VIH/0-VIL logic-level validation in high-voltage test environments with user-defined VOH/VOL rail compatibility and fast 65MHz switching capability.

Technical Context

The ISL55141IVZ-T implements a dual-threshold window comparator architecture where VINP0 is compared against CVA0 (high threshold) and CVB0 (low threshold), generating QA0/QB0 outputs that encode input state as Valid Low, No-man's-land, or Valid High. Its unbuffered VOH and VOL pins directly set output logic levels, enabling interface compatibility with TTL, LVCMOS, ECL, and CML families.

This device operates on split supplies (VCC = 12V, VEE = -3V typical), supports common-mode input range from VEE to VCC–5V, and features a dedicated PD pin for <10µA power-down current. Propagation delay mismatch between QA0/QB0 is ≤2ns, ensuring tight timing correlation for window qualification.

Key Specifications

Pinout & Package

ISL55141IVZ-T uses a 14-lead TSSOP package (M14.173) with exposed thermal pad electrically connected to VEE. Pin 1 is marked by a dot or notch; pin numbering follows standard counterclockwise convention from top-left corner.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar window comparator applications.

Compared with TLV3601DR and MAX961ESA+, the ISL55141IVZ-T uniquely integrates dual programmable thresholds, user-configurable VOH/VOL, and 18V operation in one 14-pin TSSOP-enabling true three-state window qualification without external components or voltage translation.

Availability

ISL55141IVZ-T is available at Aetrix Electronics and suitable for burn-in ATE, low-cost ATE, and fast supervisory power control applications requiring stable component supply across industrial temperature ranges.

Supply support for ISL55141IVZ-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 provider, now part of Renesas Electronics, with expertise in high-speed data acquisition and test equipment ICs.

The ISL55141IVZ-T belongs to Intersil's high-speed comparator product line, designed specifically for automated test equipment and power supervision systems requiring wide common-mode range and deterministic three-state output encoding.

FAQ

What is the function of the PD pin on the ISL55141IVZ-T?

The PD (Power-Down) pin on the ISL55141IVZ-T is a logic-input control that reduces quiescent current from ~7mA to less than 10µA when pulled low to VEE. This feature enables energy-efficient operation during idle periods in ATE systems. The ISL55141IVZ-T requires approximately 15µs to fully power up and resume normal comparator operation after PD is deasserted.

How does the ISL55141IVZ-T implement three-state window comparison?

The ISL55141IVZ-T uses two independent comparators sharing VINP0: one referenced to CVA0 (upper threshold) and one to CVB0 (lower threshold). Their outputs QA0 and QB0 combine to encode three states - both low (Valid Low), QA0 low + QB0 high (Invalid), or both high (Valid High). This eliminates need for external logic gates in window qualification tasks.

Can the ISL55141IVZ-T interface directly with 3.3V logic controllers?

Yes. The ISL55141IVZ-T allows direct interface with 3.3V logic via its user-defined VOH and VOL pins: set VOH = 3.3V and VOL = 0V to produce output levels compatible with standard LVCMOS inputs. This avoids level-shifters and preserves timing integrity, as QA0/QB0 drive directly to these rails with 18–37Ω output impedance.

What is the maximum common-mode input voltage range for the ISL55141IVZ-T?

The ISL55141IVZ-T supports a common-mode input voltage range from VEE to VCC–5V. With typical supplies of VCC = 12V and VEE = –3V, this yields –3V to +7V range - sufficient to handle 13V total swing signals. This wide range enables direct connection to flash memory test voltages and negative-rail power supervisors without attenuation.

Why does the ISL55141IVZ-T require separate VOH and VOL pins instead of fixed logic levels?

The ISL55141IVZ-T uses separate VOH and VOL pins to decouple output voltage levels from internal supply rails, allowing direct matching to diverse downstream logic families (TTL, ECL, LVCMOS, CML). This eliminates level-shifting components and ensures consistent timing across mixed-voltage systems - a critical requirement in ATE where multiple logic standards coexist.