LTC6752 - 280MHz, 2.9ns Comparator Family with Rail-to-Rail Inputs and CMOS Outputs

Features

  • Very High Toggle Rate: 280MHz
  • Low Propagation Delay: 2.9ns
  • Rail-to-Rail Inputs Extend Beyond Both Rails
  • Output Current Capability: ±22mA
  • Low Quiescent Current: 4.5mA
  • Features within the LTC6752 Family:
  • 2.45V to 5.25V Input Supply and 1.71V to 3.5V Output Supply (Separate Supply Option)
  • 2.45V to 3.5V Supply (Single Supply Option)
  • Shutdown Pin for Reduced Power
  • Output Latch and Adjustable Hysteresis
  • Complementary Outputs
  • Packages: TSOT-23, SC70, MSOP, 3mm × 3mm QFN
  • Direct Replacement for ADCMP60X Family
  • Fully Specified from –55°C to 125°C

Typical Application

LTC6752 Typical Application
LTC6752 Typical Application

Description

The LTC®6752 is a family of very high speed comparators capable of supporting toggle rates up to 280MHz. These comparators exhibit low propagation delays of 2.9ns, and fast rise/fall times of 1.2ns. There are a total of 5 members in the LTC6752 family, with different options for separate input and output supplies, shutdown, output latch, adjustable hysteresis, complementary outputs, and package.

The LTC6752 comparators have rail-to-rail inputs that operate from 2.45V, up to 3.5V or 5.25V, depending on the option. The outputs are CMOS and the separate supply options can operate down to 1.71V, allowing for directly interfacing to 1.8V logic devices.

The low propagation delay of only 2.9ns combined with low dispersion of only 1.8ns (10mV to 125mV overdrive variation) makes these comparators an excellent choice for critical timing applications. Similarly, the fast toggle rate and the low jitter of 4.5ps RMS (100mVP-P, 100MHz input) make the LTC6752 family ideally suited for high frequency line driver and clock recovery circuits.

Packaging

CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
Drawing
RoHS
LTC6752HMS8-2#PBF MS-8 MS8 H 05-08-1660 Yes
LTC6752HMS8-2#TRPBF MS-8 MS8 H 05-08-1660 Yes
LTC6752HS5#PBF SOT-23 S5 H 05-08-1635 Yes
LTC6752HS5#TRMPBF SOT-23 S5 H 05-08-1635 Yes
LTC6752HS5#TRPBF SOT-23 S5 H 05-08-1635 Yes
LTC6752HSC6-1#PBF SC-70 SC6 H 05-08-1638 Yes
LTC6752HSC6-1#TRMPBF SC-70 SC6 H 05-08-1638 Yes
LTC6752HSC6-1#TRPBF SC-70 SC6 H 05-08-1638 Yes
LTC6752HSC6-4#PBF SC-70 SC6 H 05-08-1638 Yes
LTC6752HSC6-4#TRMPBF SC-70 SC6 H 05-08-1638 Yes
LTC6752HSC6-4#TRPBF SC-70 SC6 H 05-08-1638 Yes
LTC6752HUD-3#PBF 3x3 QFN-12 UD H 05-08-1855 Yes
LTC6752HUD-3#TRPBF 3x3 QFN-12 UD H 05-08-1855 Yes
LTC6752IMS8-2#PBF MS-8 MS8 I 05-08-1660 Yes
LTC6752IMS8-2#TRPBF MS-8 MS8 I 05-08-1660 Yes
LTC6752IS5#PBF SOT-23 S5 I 05-08-1635 Yes
LTC6752IS5#TRMPBF SOT-23 S5 I 05-08-1635 Yes
LTC6752IS5#TRPBF SOT-23 S5 I 05-08-1635 Yes
LTC6752ISC6-1#PBF SC-70 SC6 I 05-08-1638 Yes
LTC6752ISC6-1#TRMPBF SC-70 SC6 I 05-08-1638 Yes
LTC6752ISC6-1#TRPBF SC-70 SC6 I 05-08-1638 Yes
LTC6752ISC6-4#PBF SC-70 SC6 I 05-08-1638 Yes
LTC6752ISC6-4#TRMPBF SC-70 SC6 I 05-08-1638 Yes
LTC6752ISC6-4#TRPBF SC-70 SC6 I 05-08-1638 Yes
LTC6752IUD-3#PBF 3x3 QFN-12 UD I 05-08-1855 Yes
LTC6752IUD-3#TRPBF 3x3 QFN-12 UD I 05-08-1855 Yes
LTC6752MPS5#PBF SOT-23 S5 M 05-08-1635 Yes
LTC6752MPS5#TRMPBF SOT-23 S5 M 05-08-1635 Yes
LTC6752MPS5#TRPBF SOT-23 S5 M 05-08-1635 Yes


LTC6752 Package Drawing
LTC6752 Package Drawing
LTC6752 Package Drawing
LTC6752 Package Drawing
LTC6752 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
(1-99)
Price
(1k)*
RoHS
LTC6752HMS8-2#PBF MS-8 H $2.70 $1.92 Yes
LTC6752HMS8-2#TRPBF MS-8 H $2.76 $1.98 Yes
LTC6752HS5#PBF SOT-23 H $2.53 Yes
LTC6752HS5#TRMPBF SOT-23 H $2.53 $1.87 Yes
LTC6752HS5#TRPBF SOT-23 H $2.53 $1.82 Yes
LTC6752HSC6-1#PBF SC-70 H $2.61 Yes
LTC6752HSC6-1#TRMPBF SC-70 H $2.61 $1.92 Yes
LTC6752HSC6-1#TRPBF SC-70 H $2.61 $1.87 Yes
LTC6752HSC6-4#PBF SC-70 H $2.61 Yes
LTC6752HSC6-4#TRMPBF SC-70 H $2.61 $1.92 Yes
LTC6752HSC6-4#TRPBF SC-70 H $2.61 $1.87 Yes
LTC6752HUD-3#PBF 3x3 QFN-12 H $2.70 $1.92 Yes
LTC6752HUD-3#TRPBF 3x3 QFN-12 H $2.76 $1.98 Yes
LTC6752IMS8-2#PBF MS-8 I $2.41 $1.71 Yes
LTC6752IMS8-2#TRPBF MS-8 I $2.47 $1.77 Yes
LTC6752IS5#PBF SOT-23 I $2.26 Yes
LTC6752IS5#TRMPBF SOT-23 I $2.26 $1.67 Yes
LTC6752IS5#TRPBF SOT-23 I $2.26 $1.62 Yes
LTC6752ISC6-1#PBF SC-70 I $2.33 Yes
LTC6752ISC6-1#TRMPBF SC-70 I $2.33 $1.72 Yes
LTC6752ISC6-1#TRPBF SC-70 I $2.33 $1.67 Yes
LTC6752ISC6-4#PBF SC-70 I $2.20 Yes
LTC6752ISC6-4#TRMPBF SC-70 I $2.33 $1.72 Yes
LTC6752ISC6-4#TRPBF SC-70 I $2.33 $1.67 Yes
LTC6752IUD-3#PBF 3x3 QFN-12 I $2.41 $1.71 Yes
LTC6752IUD-3#TRPBF 3x3 QFN-12 I $2.47 $1.77 Yes
LTC6752MPS5#PBF SOT-23 M $6.22 Yes
LTC6752MPS5#TRMPBF SOT-23 M $6.22 $4.51 Yes
LTC6752MPS5#TRPBF SOT-23 M $6.22 $4.46 Yes
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Click here to view our complete list of demo boards

Applications

  • Clock and Data Recovery
  • Level Shifting
  • High Speed Data Acquisition Systems
  • Window Comparators
  • High Speed Line Receivers
  • Fast Crystal Oscillators
  • Time of Flight Measurements
  • Time Domain Reflectometry

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Design Tools

LTspice

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Models for the following parts are available in LTspice:
LTC6752
LTC6752-2
LTC6752-3

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