7 Detailed Description

7.1 Overview

TheTLV360x family are high-speed comparators with single-ended (push-pull) output stages. The fast response

time of these comparators make them well suited for applications that require narrow pulse width detection or

high toggle frequencies. The TLV3601 is available in a 5-pin SC70 and SOT23 package, while the TLV3603(E) is

packaged in a 6-pin SC70. The TLV3602 is a dual channel version of the TLV3601 and is packaged in an 8-pin

VSSOP and WSON package.

7.2 Functional Block Diagram

+

LE/HYST

TLV3603

+

TLV3601

VEE

VEE

VCC

VCC

7.3 Feature Description

The TLV3601,TLV3603(E), and TLV3602 are single and dual channel, high speed comparators with a typical

propagation delay of 2.5 ns and push-pull outputs. The minimum pulse width detection capability is 1.25 ns and

the typical toggle rate is 325 MHz. These comparators are well-suited for distance measurement applications

that utilize a time-of-flight arechitecture as well as systems that suffer from capacitive loading and require data

and clock recovery. In addition to their high speed, the TLV360x family offers rail-to-rail input stages capable

of operating up to 200 mV beyond each power supply rail combined with a maximum 5 mV input offset. The

TLV3603(E) also provides adjustable hysteresis via an external resistor for noise suppression or a latching mode

to hold the output of the comparators.

7.4 Device Functional Modes

The TLV3601 has a single functional mode and is active when the power supply voltage is greater than 2.4V.

The TLV3603(E) has two modes of operation. The first is an active mode where the output reflects the condition

at the inputs when an external resistor is connected to ground on the LE/HYS pin. The second is a latch mode

where the output is held at its last active state when the LE/HYS pin is pulled low. The TLV3603(E) returns to

active mode after a short delay when the pin is pulled high.

7.4.1 Inputs

The TLV360x family features input stages capable of operating 200 mV below negative power supply (ground)

and 200 mV beyond the positive supply voltage, allowing for zero cross detection and maximizing input dynamic

range given a certain power supply. The input stages are protected from conditions where the voltage on either

pin exceeds this level by internal ESD protection diodes to VCC and VEE. To avoid damaging the inputs when

exceeding the recommended input voltage range, an external resistor should be used to limit the current.

7.4.2 Push-Pull (Single-Ended) Output

The TLV360x outputs have excellent drive capability and are designed to connect directly to CMOS logic

input devices. Likewise, the comparator output stages can drive capacitive loads. Transient performance

parameters in the Electrical Characteristics Tables and Typical Characteristics section are for a load of 5pF,

corresponding to a standard CMOS load. Device performance for larger capacitive loads can be found in the

typical performance curves titled Propagation Delay vs Capacitive Load. For optimal speed and performance,

output load capacitance should be reduced as much as possible.

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TLV3601, TLV3602, TLV3603, TLV3603E

SNOSDB1E – JUNE 2021 – REVISED APRIL 2023

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Product Folder Links: TLV3601 TLV3602 TLV3603 TLV3603E