Texas Instruments TLV3501AID

Overview

TLV3501AID from Texas Instruments is a single, rail-to-rail input/output, high-speed comparator with 4.5-ns propagation delay, 2.7 V to 5.5 V supply operation, and integrated shutdown control. It features 6 mV internal hysteresis, ±1 mV typical input offset voltage, and push-pull CMOS output capable of directly driving TTL/CMOS logic - used in threshold detection and high-speed window comparators in wireless base stations and automatic test equipment.

For engineers reviewing the TLV3501AID datasheet, TLV3501AID pinout, TLV3501AID application, or TLV3501AID equivalent, key selection criteria include propagation delay vs. overdrive voltage (e.g., 4.5 ns at 100 mV), shutdown timing (100 ns wake-up), rail-to-rail input common-mode range (extends 0.2 V beyond rails), and SOT-23-6 package compatibility with space-constrained PCB layouts.

Technical Context

The TLV3501AID employs a high-gain, low-offset front-end with ESD-protected inputs and a fast push-pull output stage optimized for minimal propagation skew (<0.5 ns) and clean edge transitions (1.5 ns rise/fall). Its shutdown function disables the comparator core while maintaining high-impedance output and reducing quiescent current to 2 µA.

Input common-mode range spans (V−) −0.2 V to (V+) −0.2 V, enabling direct interfacing with low-voltage sensors and ADC references. The device operates across −40°C to +125°C and supports both single-supply (2.7–5.5 V) and dual-supply (±1.35 V to ±2.75 V) configurations without performance degradation.

Key Specifications

Pinout & Package

TLV3501AID is packaged in an 8-pin SOIC (D package) with nominal body size 3.91 mm × 4.90 mm, surface-mount compatible, and rated for reflow soldering per JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV3501CD and LMH7322MA, TLV3501AID uniquely combines industrial temperature rating (−40°C to +125°C), integrated shutdown, and SOIC-8 packaging - making it optimal for embedded control systems requiring long-term reliability and dynamic power management.

Availability

TLV3501AID is available at Aetrix Electronics and suitable for automatic test equipment, wireless infrastructure, industrial safety interlocks, and precision instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLV3501AID 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

Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in precision signal chain and high-speed interface solutions.

The TLV3501AID belongs to TI's TLV350x family of rail-to-rail, nanosecond-speed comparators designed for low-voltage, space-constrained applications including portable test gear, telecom receivers, and real-time industrial monitoring systems.

FAQ

What is the maximum operating supply voltage for TLV3501AID?

The TLV3501AID has an absolute maximum supply voltage of 5.5 V, with recommended operation from 2.7 V to 5.5 V. Exceeding 5.5 V risks permanent damage per Absolute Maximum Ratings. At 5.5 V, propagation delay remains 4.5 ns (typical), and output swing stays within 50 mV of rails at ±1 mA load - ensuring consistent high-speed performance across its full rated range.

Does TLV3501AID support dual-supply operation?

Yes, TLV3501AID supports dual-supply operation from ±1.35 V to ±2.75 V. In dual-supply mode, V+ connects to the positive rail and V− to the negative rail; input common-mode range extends from (V−) −0.2 V to (V+) −0.2 V. This configuration enables symmetric signal handling in analog front-ends, such as audio or sensor conditioning circuits, while retaining 4.5-ns propagation delay and shutdown functionality.

How does the shutdown pin (SHDN) function on TLV3501AID?

The SHDN pin on TLV3501AID is active-low: pulling it ≤(V+) −1.7 V enables normal operation; pulling it ≥(V+) −0.9 V disables the comparator core. During shutdown, quiescent current drops to 2 µA and the output enters high-impedance state. Wake-up time is 100 ns. When unused, SHDN must be tied to V− (GND) - not left floating - to ensure reliable enablement and avoid metastability.

What is the input hysteresis of TLV3501AID, and can it be adjusted?

TLV3501AID includes fixed 6 mV internal hysteresis to improve noise immunity. This value is not user-adjustable via pins but can be augmented externally using positive feedback to the +IN pin. For example, adding a 100-kΩ resistor from OUT to +IN on a 5-V supply yields ~25 mV additional hysteresis. Total hysteresis then becomes ~31 mV - sufficient for noisy sensor interfaces where internal hysteresis alone is insufficient.

Is TLV3501AID pin-compatible with other packages in the TLV350x family?

No, TLV3501AID (SOIC-8) is not pin-compatible with TLV3501DBV (SOT-23-6). Pin count, layout, and terminal assignments differ: SOIC-8 includes two NC pins (1 and 5) and separates V+ (pin 7) and SHDN (pin 8), whereas SOT-23-6 consolidates functions into six pins with different numbering. Board redesign is required when substituting between these packages - mechanical and electrical routing must be verified per TI's DBV and D package drawings.