7 Detailed Description

7.1 Overview

The TLV3604 and TLV3605 are 800-ps, high-speed comparators with LVDS outputs and rail-to-rail inputs. These

features, along with an operating voltage range of 2.4 V to 5.5 V and a high toggle frequency of 3 Gbps,

make the TLV3604 and TLV3605 well suited for LIDAR, clock and data recovery applications, and test and

measurement systems.

7.2 Functional Block Diagram

+

–

OUTP

IN+

IN

-

OUTN

100

TLV3604

+

–

TLV3605

TLV3607 per channel

OUTP

OUTN

100

R

IN+

IN

-

SHDN

LVDS

LVDS

7.3 Feature Description

The TLV3604 and TLV3605 (single channel) and TLV3607 (dual channel) are high-speed comparators with rail-

to-rail inputs and LVDS outputs. The rail-to-rail input stage is capable of operating up to 200 mV beyond each

power supply rail with minimal input offset. The TLV3605 (single) and TLV3607 (dual) have similar performance

as the TLV3604 while providing adjustable hysteresis, latching function, and shutdown mode.

7.4 Device Functional Modes

The TLV3604 has a single functional mode and is operational when the power supply voltage is greater than

the minimum operating voltage. On the other hand, the TLV3605 and TLV3607 have an active and shutdown

mode. The TLV3605 and TLV3607 are in shutdown mode when the SHDN pin is logic low. To allow for easy

interface with 1.8V FPGAs and CPUs, the SHDN pin is 1.8 V logic compliant and independent of the comparator

power supply.

7.4.1 Rail-to-Rail Inputs

The TLV3604, TLV3605, and TLV3607 feature input stages capable of operating 200mV below or above the

power supply rails, allowing for zero cross detection and maximizing input dynamic range. With low input offset

voltage, the comparators improve system performance in high sensitivity signal detection.

7.4.2 LVDS Output

The TLV3604, TLV3605, and TLV3607 outputs are LVDS compliant. When the input of the downstream device is

terminated with a 100 Ω resistor, it provides a ±350 mV LVDS swing. Fully differential outputs enable fast digital

toggling and reduce EMI compared to single-ended output standards.

www.ti.com

TLV3604, TLV3605, TLV3607

SNOSDA2E – AUGUST 2020 – REVISED JULY 2023

Copyright © 2023 Texas Instruments Incorporated

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Product Folder Links: TLV3604 TLV3605 TLV3607