Analog Devices Inc. LT1016IS8#PBF

Overview

LT1016IS8#PBF from Analog Devices is an ultrafast precision comparator with 10ns typical propagation delay, ±5V or single 5V supply operation, complementary TTL/CMOS-compatible outputs (Q and Q̄), 1.0mV max input offset voltage (–40°C to 85°C), and integrated latch enable pin. It serves as a high-speed decision element in A/D converters, pulse discriminators, and zero-crossing detectors where nanosecond timing and low-glitch behavior are critical.

For engineers reviewing the LT1016IS8#PBF datasheet, LT1016IS8#PBF pinout, LT1016IS8#PBF application, or LT1016IS8#PBF equivalent, key selection factors include latch timing (2ns setup), differential propagation delay (3ns), stable linear-region operation, no minimum input slew rate requirement, and compatibility with ±5V or 5V-only systems without external level-shifting.

Technical Context

The LT1016IS8#PBF employs a high-gain-bandwidth (≈50GHz) NPN input stage with matched complementary outputs, enabling precise threshold detection even at millivolt overdrive levels. Its unique active-drive output stage eliminates current spikes during switching, preventing supply-induced oscillation and output "glitching" during slow or low-level input transitions.

Operation is supported across ±5V or single 5V supplies, with common-mode input range extending to –3.75V to 3.5V (±5V supplies) or 0V to 3.5V (5V supply). The LATCH pin provides synchronous data retention with 2ns setup time and 3ns hold time, and quiescent negative supply current remains stable at only 3mA, allowing resistive divider biasing of V–.

Key Specifications

Pinout & Package

LT1016IS8#PBF is housed in an 8-lead plastic SO (S8) package with JEDEC MS-012AC footprint, 120°C/W junction-to-ambient thermal resistance, and –40°C to +85°C operating temperature range.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed comparator applications.

Compared with LM360M/NOPB and MAX961ESA+, the LT1016IS8#PBF uniquely combines latch synchronization, complementary outputs, and ±5V/5V flexibility-making it irreplaceable in synchronous sampling circuits where timing predictability and dual-edge decision logic are mandatory.

Availability

LT1016IS8#PBF is available at Aetrix Electronics and suitable for high-speed A/D converters, zero-crossing detectors, pulse discriminators, and switching regulator current sense applications requiring stable component supply across industrial temperature ranges.

Supply support for LT1016IS8#PBF 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

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.

The LT1016IS8#PBF belongs to Analog Devices' precision high-speed comparator product line, designed specifically for applications demanding nanosecond decision latency, latch synchronization, and robust operation under varying supply and input conditions.

FAQ

What is the maximum operating temperature range for the LT1016IS8#PBF?

The LT1016IS8#PBF is rated for operation from –40°C to +85°C, as confirmed by its "I" grade designation and SO-8 packaging specifications. This extended industrial temperature range ensures reliability in demanding environments such as motor control, power supply monitoring, and industrial automation where ambient temperatures exceed commercial limits. The LT1016IS8#PBF maintains full electrical performance-including 10ns propagation delay and ±3.5mV offset-across this entire range.

Does the LT1016IS8#PBF require external pull-up resistors on its Q and Q̄ outputs?

No, the LT1016IS8#PBF does not require external pull-up resistors because its output stage provides active drive in both high and low states. The Q and Q̄ outputs can source up to 10mA and sink up to 4mA while maintaining VOH ≥2.7V and VOL ≤0.5V, enabling direct interface to TTL and CMOS logic families. This active-drive architecture eliminates the speed penalty and power inefficiency associated with passive pull-ups, and is explicitly validated in the LT1016IS8#PBF's Electrical Characteristics table under VOH and VOL parameters.

Can the LT1016IS8#PBF operate from a single 5V supply without performance degradation?

Yes, the LT1016IS8#PBF is fully specified for single 5V supply operation, with identical propagation delay (10ns typ), offset voltage (±3.5mV max), and output drive capability as under ±5V conditions. Its input common-mode range extends to 0V–3.5V and output swing reaches 0.5V–2.7V, supporting direct interfacing to 5V logic. This dual-supply flexibility is confirmed in the Features section and Absolute Maximum Ratings table of the official LT1016IS8#PBF datasheet.

What is the function of the LATCH pin on the LT1016IS8#PBF, and what timing constraints apply?

The LATCH pin on the LT1016IS8#PBF enables synchronous data retention: when driven high, it freezes the Q and Q̄ outputs at their current logic states. To ensure reliable latching, the input signal must be stable for at least 2ns before the LATCH pin rises (setup time) and remain stable for 3ns after (hold time). When LATCH returns low, new input data appears at outputs in 8–10ns. These values are measured and guaranteed per the LT1016IS8#PBF's Electrical Characteristics table and Applications Information section.

How does the LT1016IS8#PBF prevent output "glitching" during slow-moving input signals?

The LT1016IS8#PBF prevents output glitching through two design features: first, its output stage delivers active drive in both directions-eliminating the large current spikes that cause supply rail disturbance in conventional comparators; second, it remains stable while operating in the linear region (i.e., when inputs are near equality), unlike most high-speed comparators that oscillate or produce erratic transitions under these conditions. This behavior is documented in the LT1016IS8#PBF's Features and Applications Information sections, and verified by layout guidelines requiring short ground paths to maintain stability.