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LTC1798 Series
PRODUCTIONMicropower Low Dropout References
- Part Models
- 8
- 1ku List Price
- Starting From $3.05
Overview
- 200mV Max Dropout at 10mA Output Current
- 4μA Typical Quiescent Current
- 0.15% Max Initial Accuracy
- No Output Capacitor Required
- Output Sources 10mA, Sinks 2mA
- 40ppm/°C Max Drift
- Voltage Options: 2.5V, 3V, 4.1V, 5V and Adjustable
The LTC1798/LTC1798-2.5/LTC1798-3/LTC1798-4.1/ LTC1798-5 are micropower bandgap references that combine high accuracy and low drift with very low supply current and small package size. The combination of ultralow quiescent current and low dropout voltage of only 200mV (max) makes them ideal for battery-powered equipment. The output voltage is set by an external resistor divider for the adjustable LTC1798.
This series of references uses curvature compensation to obtain low temperature coefficient and trimmed thin-film resistors to achieve high output accuracy. These references can source up to 10mA and sink up to 2mA, making them ideal for precision regulator applications. They are stable without an output bypass capacitor, but are also stable with capacitance up to 1μF. This feature is important in critical applications where PC board space is a premium and fast settling is demanded.
The LTC1798 series references provided power dissipation advantages over shunt references. In addition to supply current, shunt references must also idle the entire load current to operate.
The LTC1798 series is available in the SO-8 package.
Applications
- Battery-Powered Systems
- Handheld Instruments
- Precision Power Supplies
- A/D and D/A Converters
- Available in the SO-8 Package
Documentation
Data Sheet 1
Reliability Data 1
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 |
|---|---|---|---|
| LTC1798CS8-2.5#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1798CS8-2.5#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1798CS8-3#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1798CS8-3#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1798CS8-4.1#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1798CS8-4.1#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1798CS8-5#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LTC1798CS8-5#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 24, 2024 - 24_0246 Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package |
||
| LTC1798CS8-2.5#PBF | PRODUCTION | |
| LTC1798CS8-2.5#TRPBF | PRODUCTION | |
| LTC1798CS8-3#PBF | PRODUCTION | |
| LTC1798CS8-3#TRPBF | PRODUCTION | |
| LTC1798CS8-4.1#PBF | PRODUCTION | |
| LTC1798CS8-4.1#TRPBF | PRODUCTION | |
| LTC1798CS8-5#PBF | PRODUCTION | |
| LTC1798CS8-5#TRPBF | PRODUCTION | |
|
Oct 12, 2022 - 22_0255 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 2 of 2) |
||
| LTC1798CS8-2.5#PBF | PRODUCTION | |
| LTC1798CS8-2.5#TRPBF | PRODUCTION | |
| LTC1798CS8-3#PBF | PRODUCTION | |
| LTC1798CS8-3#TRPBF | PRODUCTION | |
| LTC1798CS8-4.1#PBF | PRODUCTION | |
| LTC1798CS8-4.1#TRPBF | PRODUCTION | |
| LTC1798CS8-5#PBF | PRODUCTION | |
| LTC1798CS8-5#TRPBF | PRODUCTION | |
|
Jun 16, 2021 - 21_0026 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM |
||
| LTC1798CS8-2.5#PBF | PRODUCTION | |
| LTC1798CS8-2.5#TRPBF | PRODUCTION | |
| LTC1798CS8-3#PBF | PRODUCTION | |
| LTC1798CS8-3#TRPBF | PRODUCTION | |
| LTC1798CS8-4.1#PBF | PRODUCTION | |
| LTC1798CS8-4.1#TRPBF | PRODUCTION | |
| LTC1798CS8-5#PBF | PRODUCTION | |
| LTC1798CS8-5#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:
- LTC1798
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.
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