Datasheet LTC1798 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | Micropower Low Dropout References |
| Pages / Page | 10 / 1 — FEATURES. DESCRIPTION. 200mV Max Dropout at 10mA Output Current. 4µA … |
| File Format / Size | PDF / 848 Kb |
| Document Language | English |
FEATURES. DESCRIPTION. 200mV Max Dropout at 10mA Output Current. 4µA Typical Quiescent Current. 0.15% Max Initial Accuracy
Model Line for this Datasheet
- LTC1798CS8-2.5#PBF LTC1798CS8-2.5#PBF LTC1798CS8-2.5#TRPBF LTC1798CS8-2.5#TRPBF LTC1798CS8-3#PBF LTC1798CS8-3#PBF LTC1798CS8-3#TRPBF LTC1798CS8-3#TRPBF LTC1798CS8-4.1#PBF LTC1798CS8-4.1#PBF LTC1798CS8-4.1#TRPBF LTC1798CS8-4.1#TRPBF LTC1798CS8-5#PBF LTC1798CS8-5#PBF LTC1798CS8-5#TRMPBF LTC1798CS8-5#TRPBF LTC1798CS8-5#TRPBF
Text Version of Document
LTC1798 Series Micropower Low Dropout References
FEATURES DESCRIPTION
n
200mV Max Dropout at 10mA Output Current
The LTC®1798/LTC1798-2.5/LTC1798-3/LTC1798-4.1/ n
4µA Typical Quiescent Current
LTC1798-5 are micropower bandgap references that n
0.15% Max Initial Accuracy
combine high accuracy and low drift with very low supply n
No Output Capacitor Required
current and small package size. The combination of ultralow n Output Sources 10mA, Sinks 2mA quiescent current and low dropout voltage of only 200mV n 40ppm/°C Max Drift (max) makes them ideal for battery-powered equipment. n Voltage Options: 2.5V, 3V, 4.1V, 5V and Adjustable The output voltage is set by an external resistor divider for the adjustable LTC1798.
APPLICATIONS
This series of references uses curvature compensation to obtain low temperature coefficient and trimmed thin-film n Battery-Powered Systems resistors to achieve high output accuracy. These references n Handheld Instruments can source up to 10mA and sink up to 2mA, making them n Precision Power Supplies ideal for precision regulator applications. They are stable n A/D and D/A Converters without an output bypass capacitor, but are also stable n Available in the SO-8 Package with capacitance up to 1µF. This feature is important in L critical applications where PC board space is a premium , LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. 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.
TYPICAL APPLICATION LTC1798-2.5 Temperature Drift 2.5V Battery-Powered Reference
4 3 LTC1798-2.5 2 2.7V 2 6 IN OUT TO 12.6V 2.5V 0.1µF 1 GND 1798 TA01 0 4 –1 –2 REFERENCE VOLTAGE CHANGE (mV) –3 –4–40 –20 0 20 40 60 80 100 TEMPERATURE (°C) 1798 TA02 1798fc 1 Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION AVAILABLE OPTIONS ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS PIN FUNCTIONS BLOCK DIAGRAM APPLICATIONS INFORMATION PACKAGE DESCRIPTION REVISION HISTORY TYPICAL APPLICATION RELATED PARTS
FEATURES DESCRIPTION
n
200mV Max Dropout at 10mA Output Current
The LTC®1798/LTC1798-2.5/LTC1798-3/LTC1798-4.1/ n
4µA Typical Quiescent Current
LTC1798-5 are micropower bandgap references that n
0.15% Max Initial Accuracy
combine high accuracy and low drift with very low supply n
No Output Capacitor Required
current and small package size. The combination of ultralow n Output Sources 10mA, Sinks 2mA quiescent current and low dropout voltage of only 200mV n 40ppm/°C Max Drift (max) makes them ideal for battery-powered equipment. n Voltage Options: 2.5V, 3V, 4.1V, 5V and Adjustable The output voltage is set by an external resistor divider for the adjustable LTC1798.
APPLICATIONS
This series of references uses curvature compensation to obtain low temperature coefficient and trimmed thin-film n Battery-Powered Systems resistors to achieve high output accuracy. These references n Handheld Instruments can source up to 10mA and sink up to 2mA, making them n Precision Power Supplies ideal for precision regulator applications. They are stable n A/D and D/A Converters without an output bypass capacitor, but are also stable n Available in the SO-8 Package with capacitance up to 1µF. This feature is important in L critical applications where PC board space is a premium , LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. 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.
TYPICAL APPLICATION LTC1798-2.5 Temperature Drift 2.5V Battery-Powered Reference
4 3 LTC1798-2.5 2 2.7V 2 6 IN OUT TO 12.6V 2.5V 0.1µF 1 GND 1798 TA01 0 4 –1 –2 REFERENCE VOLTAGE CHANGE (mV) –3 –4–40 –20 0 20 40 60 80 100 TEMPERATURE (°C) 1798 TA02 1798fc 1 Document Outline FEATURES DESCRIPTION APPLICATIONS TYPICAL APPLICATION ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION ORDER INFORMATION AVAILABLE OPTIONS ELECTRICAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS PIN FUNCTIONS BLOCK DIAGRAM APPLICATIONS INFORMATION PACKAGE DESCRIPTION REVISION HISTORY TYPICAL APPLICATION RELATED PARTS
