LT1394
PRODUCTION7ns, Low Power, Single Supply, Ground-Sensing Comparator
- Part Models
- 6
- 1ku List Price
- Starting From $3.69
Part Details
- UltraFast™: 7ns
- Low Power: 6mA
- Low Offset Voltage: 0.8mV
- Operates Off Single 5V or Dual ±5V Supplies
- Input Common Mode Extends to Negative Supply
- No Minimum Input Slew Rate Requirement
- Complementary TTL Outputs
- Inputs Can Exceed Supplies without Phase Reversal
- Pin Compatible with LT1016, LT1116 and LT1671
- Output Latch Capability
- Available in 8-Lead MSOP and SO Packages
The LT1394 is an UltraFast (7ns) comparator with complementary outputs and latch. The input common mode range extends from 1.5V below the positive supply down to the negative supply rail. Like the LT1016, LT1116 and LT1671, this comparator has complementary outputs designed to interface directly to TTL or CMOS logic. The LT1394 may operate from either a single 5V supply or dual ±5V supplies. Low offset voltage specifications and high gain allow the LT1394 to be used in precision applications.
The LT1394 is designed for improved speed and stability for a wide range of operating conditions. The output stage provides active drive in both directions for maximum speed into TTL, CMOS or passive loads with minimal cross-conduction current. Unlike other fast comparators, the LT1394 remains stable even for slow transitions through the active region, which eliminates the need to specify a minimum input slew rate.
The LT1394 has an internal, TTL/CMOS compatible latch for retaining data at the outputs. The latch holds data as long as the LATCH pin is held high. Device parameters such as gain, offset and negative power supply current are not significantly affected by variations in negative supply voltage.
Applications
- High Speed A/D Converters
- Zero-Crossing Detectors
- Current Sense for Switching Regulators
- Extended Range V/F Coverters
- Fast Pulse Height/Width Discriminators
- High Speed Triggers
- Line Receivers
- High Speed Sampling Circuits
Documentation
Data Sheet 1
Reliability Data 1
Application Note 4
Design Note 2
Technical Articles 3
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LT1394CMS8#PBF | 8-Lead MSOP | ||
| LT1394CMS8#TRPBF | 8-Lead MSOP | ||
| LT1394CS8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1394CS8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1394IS8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1394IS8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 5, 2024 - 24_0003 Epoxy Change from Henkel 8290 to 8290A for MSOP Package (2) |
||
| LT1394CMS8#PBF | PRODUCTION | |
| LT1394CMS8#TRPBF | PRODUCTION | |
|
Feb 3, 2020 - 20_0128 Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC |
||
| LT1394CMS8#PBF | PRODUCTION | |
| LT1394CMS8#TRPBF | PRODUCTION | |
|
Oct 8, 2024 - 24_0236 Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package |
||
| LT1394CS8#PBF | PRODUCTION | |
| LT1394CS8#TRPBF | PRODUCTION | |
| LT1394IS8#PBF | PRODUCTION | |
| LT1394IS8#TRPBF | PRODUCTION | |
|
Oct 12, 2022 - 22_0254 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 1 of 2) |
||
| LT1394CS8#PBF | PRODUCTION | |
| LT1394CS8#TRPBF | PRODUCTION | |
| LT1394IS8#PBF | PRODUCTION | |
| LT1394IS8#TRPBF | PRODUCTION | |
|
Jun 11, 2021 - 21_0060 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM |
||
| LT1394CS8#PBF | PRODUCTION | |
| LT1394CS8#TRPBF | PRODUCTION | |
| LT1394IS8#PBF | PRODUCTION | |
| LT1394IS8#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Tools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LT1394
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.