Analog Devices Inc. LT1016IS8#TRPBF

Overview

LT1016IS8#TRPBF from Analog Devices is an ultrafast precision comparator with 10ns typical propagation delay, complementary TTL/CMOS-compatible outputs, and latch functionality. It operates from single 5V or dual ±5V supplies, features ±3mV max input offset voltage, 3mA quiescent negative supply current, and is rated for –40°C to +85°C industrial temperature range in an 8-lead SOIC package. It serves in high-speed sampling circuits, A/D converters, and zero-crossing detection.

For engineers reviewing the LT1016IS8#TRPBF datasheet, LT1016IS8#TRPBF pinout, LT1016IS8#TRPBF application, or LT1016IS8#TRPBF equivalent, key selection considerations include propagation delay vs. overdrive, latch setup/hold timing, output drive capability into capacitive loads, and common-mode input range limits under varying supply configurations.

Technical Context

The LT1016IS8#TRPBF employs a high-gain-bandwidth (≈50GHz) NPN input stage enabling fast response to low-level signals without minimum slew rate requirements. Its active-output stage delivers bidirectional drive into TTL/CMOS logic or passive loads while suppressing current spikes that cause output "glitching" during slow or low-amplitude input transitions.

It integrates a dedicated LATCH pin that retains output state when asserted high, requiring ≥2ns setup and ≥3ns hold time relative to latch assertion. The device maintains stable linear-region operation and exhibits no power supply current spiking during output switching-critical for noise-sensitive high-speed systems.

Key Specifications

Pinout & Package

LT1016IS8#TRPBF is housed in an 8-lead plastic SOIC (S8) package with θ_JA = 120°C/W and T_JMAX = 110°C. Pin functions are validated per Analog Devices Rev D datasheet.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LM360M/NOPB and ADCMP572BCPZ-R2, the LT1016IS8#TRPBF uniquely balances 10ns speed, latch capability, TTL/CMOS compatibility, and ±5V/single-5V flexibility-making it optimal for industrial sampling, A/D front-ends, and zero-crossing detection where moderate speed and integrated control are prioritized over extreme bandwidth or wide-supply operation.

Availability

LT1016IS8#TRPBF is available at Aetrix Electronics and suitable for high-speed sampling circuits, A/D converter front-ends, and zero-crossing detectors requiring stable component supply across industrial temperature ranges.

Supply support for LT1016IS8#TRPBF 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving precision instrumentation, communications, and industrial markets.

The LT1016IS8#TRPBF belongs to Analog Devices' legacy Linear Technology high-speed comparator product line, designed specifically for applications demanding nanosecond-level timing accuracy, latch-controlled decision retention, and robust operation in noisy, high-frequency environments.

FAQ

What is the maximum propagation delay specification for LT1016IS8#TRPBF at 5mV overdrive?

The LT1016IS8#TRPBF has a maximum propagation delay of 16ns at 5mV overdrive, with 10ns typical. This value is specified over the full –40°C to +85°C temperature range and applies to both rising and falling edges under standard test conditions (V+ = 5V, V– = –5V, C_LOAD = 10pF). Differential propagation delay (t_PDLH – t_PDHL) is limited to 3ns max, ensuring matched edge timing between Q and Q̅ outputs.

Does LT1016IS8#TRPBF require external pull-up resistors on its Q and Q̅ outputs?

No, LT1016IS8#TRPBF does not require external pull-up resistors. Its active-output stage provides full rail-to-rail sourcing and sinking capability: VOH ≥2.4V at 10mA load and VOL ≤0.5V at 4mA sink. This eliminates external components for TTL/CMOS interfacing and ensures clean, fast edges into standard logic inputs without added propagation delay or power consumption.

Can LT1016IS8#TRPBF operate from a single 3.3V supply?

No, LT1016IS8#TRPBF is not characterized or guaranteed for operation from a single 3.3V supply. Its absolute maximum positive supply voltage is 7V, but electrical specifications-including propagation delay, offset voltage, and output swing-are validated only for single 5V or dual ±5V operation. Using 3.3V risks degraded speed, increased offset, and unreliable output logic levels, as confirmed by the datasheet's test conditions and common-mode range definition (1.25V above V– and 1.5V below V+).

How does the LATCH pin behave when left unconnected on LT1016IS8#TRPBF?

When left unconnected, the LATCH pin on LT1016IS8#TRPBF floats to a high state due to internal biasing, causing the outputs to remain latched in their last valid state. To achieve transparent (non-latched) operation, the LATCH pin must be actively driven low-typically via a grounded resistor or logic gate output. The datasheet specifies VIH ≥2.0V and VIL ≤0.8V, confirming TTL/CMOS compatibility and defining the valid logic thresholds for reliable latch control.

What is the recommended PCB layout practice for minimizing oscillation in LT1016IS8#TRPBF applications?

To prevent oscillation, LT1016IS8#TRPBF requires a solid ground plane, bypass capacitors (≥0.01µF ceramic) placed within 0.2 inches of V+ and V– pins, and GND pin connection length ≤0.25 inch directly to the ground plane. Input and output traces must be short and separated; source impedances kept ≤1kΩ; and probe ground leads ≤1 inch when measuring. These practices mitigate stray inductance, capacitive feedback, and supply impedance effects that cause ringing or instability at nanosecond timescales.