Datasheet LT1790 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | Micropower SOT-23 Low Dropout Reference Family |
| Pages / Page | 26 / 1 — FEATURES. DESCRIPTION. High Accuracy:. A Grade—0.05% Max. B Grade—0.1% … |
| File Format / Size | PDF / 596 Kb |
| Document Language | English |
FEATURES. DESCRIPTION. High Accuracy:. A Grade—0.05% Max. B Grade—0.1% Max. Low Drift:. A Grade—10ppm/°C Max. B Grade—25ppm/°C Max
Model Line for this Datasheet
- LT1790ACS6-1.25#PBF LT1790ACS6-1.25#TRMPBF LT1790ACS6-1.25#TRPBF LT1790ACS6-2.048#PBF LT1790ACS6-2.048#TRMPBF LT1790ACS6-2.048#TRPBF LT1790ACS6-2.5#PBF LT1790ACS6-2.5#TRMPBF LT1790ACS6-2.5#TRPBF LT1790ACS6-3#PBF LT1790ACS6-3#TRMPBF LT1790ACS6-3#TRPBF LT1790ACS6-3.3#PBF LT1790ACS6-3.3#TRMPBF LT1790ACS6-3.3#TRPBF LT1790ACS6-4.096#PBF LT1790ACS6-4.096#TRMPBF LT1790ACS6-4.096#TRPBF LT1790ACS6-5#PBF LT1790ACS6-5#TRMPBF LT1790ACS6-5#TRPBF LT1790AIS6-1.25#PBF LT1790AIS6-1.25#TRMPBF LT1790AIS6-1.25#TRPBF LT1790AIS6-2.048#PBF LT1790AIS6-2.048#TRMPBF LT1790AIS6-2.048#TRPBF LT1790AIS6-2.5#PBF LT1790AIS6-2.5#TRMPBF LT1790AIS6-2.5#TRPBF LT1790AIS6-3#PBF LT1790AIS6-3#TRMPBF LT1790AIS6-3#TRPBF LT1790AIS6-3.3#PBF LT1790AIS6-3.3#TRMPBF LT1790AIS6-3.3#TRPBF LT1790AIS6-4.096#PBF LT1790AIS6-4.096#TRMPBF LT1790AIS6-4.096#TRPBF LT1790AIS6-5#PBF LT1790AIS6-5#TRMPBF LT1790AIS6-5#TRPBF LT1790BCS6-1.25#PBF LT1790BCS6-1.25#TRMPBF LT1790BCS6-1.25#TRPBF LT1790BCS6-2.048#PBF LT1790BCS6-2.048#TRMPBF LT1790BCS6-2.048#TRPBF LT1790BCS6-2.5#PBF LT1790BCS6-2.5#TRMPBF LT1790BCS6-2.5#TRPBF LT1790BCS6-3#PBF LT1790BCS6-3#TRMPBF LT1790BCS6-3#TRPBF LT1790BCS6-3.3#PBF LT1790BCS6-3.3#TRMPBF LT1790BCS6-3.3#TRPBF LT1790BCS6-4.096#PBF LT1790BCS6-4.096#TRMPBF LT1790BCS6-4.096#TRPBF LT1790BCS6-5#PBF LT1790BCS6-5#TRMPBF LT1790BCS6-5#TRPBF LT1790BIS6-1.25#PBF LT1790BIS6-1.25#TRMPBF LT1790BIS6-1.25#TRPBF LT1790BIS6-2.048#PBF LT1790BIS6-2.048#TRMPBF LT1790BIS6-2.048#TRPBF LT1790BIS6-2.5#PBF LT1790BIS6-2.5#TRMPBF LT1790BIS6-2.5#TRPBF LT1790BIS6-3#PBF LT1790BIS6-3#TRMPBF LT1790BIS6-3#TRPBF LT1790BIS6-3.3#PBF LT1790BIS6-3.3#TRMPBF LT1790BIS6-3.3#TRPBF LT1790BIS6-4.096#PBF LT1790BIS6-4.096#TRMPBF LT1790BIS6-4.096#TRPBF LT1790BIS6-5#PBF LT1790BIS6-5#TRMPBF LT1790BIS6-5#TRPBF
Text Version of Document
LT1790 Micropower SOT-23 Low Dropout Reference Family
FEATURES DESCRIPTION
n
High Accuracy:
The LT®1790 is a family of SOT-23 micropower low dropout
A Grade—0.05% Max
series references that combine high accuracy and low drift
B Grade—0.1% Max
with low power dissipation and small package size. These n
Low Drift:
micropower references use curvature compensation to
A Grade—10ppm/°C Max
obtain a low temperature coefficient and trimmed preci-
B Grade—25ppm/°C Max
sion thin-film resistors to achieve high output accuracy. In n
Low Thermal Hysteresis 40ppm (Typical) –40°C to 85°C
addition, each LT1790 is post-package trimmed to greatly n Low Supply Current: 60µA Max reduce the temperature coefficient and increase the output n Sinks and Sources Current accuracy. Output accuracy is further assured by excellent n Low Dropout Voltage line and load regulation. Special care has been taken to n Guaranteed Operational –40°C to 125°C minimize thermally induced hysteresis. n Wide Supply Range to 18V The LT1790s are ideally suited for battery-operated n Available Output Voltage Options: 1.25V, 2.048V, systems because of their small size, low supply current 2.5V, 3V, 3.3V, 4.096V and 5V and reduced dropout voltage. These references provide n Low Profile (1mm) ThinSOT™ Package supply current and power dissipation advantages over shunt references that must idle the entire load current to
APPLICATIONS
operate. Since the LT1790 can also sink current, it can operate as a micropower negative voltage reference with n Handheld Instruments the same performance as a positive reference. n Negative Voltage References L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear n Industrial Control Systems Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. n All other trademarks are the property of their respective owners. Data Acquisition Systems n Battery-Operated Equipment
TYPICAL APPLICATION Positive Connection for LT1790-2.5 Typical VOUT Distribution for LT1790-2.5
50 167 UNITS 4 6 2.6V ≤ V 45 IN ≤ 18V LT1790-2.5 VOUT = 2.5V 40 0.1µF 1µF LT1790B LIMITS 1, 2 35 LT1790A LIMITS 1790 TA01 30 25 20 NUMBER OF UNITS 15 10 5 0 2.498 2.499 2.500 2.501 2.502 OUTPUT VOLTAGE (V) 1790 TA02 1790fc For more information www.linear.com/LT1790 1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Available Options 1.25V Electrical Characteristics 2.048V Electrical Characteristics 2.5V Electrical Characteristics 3V Electrical Characteristics 3.3V Electrical Characteristics 4.096V Electrical Characteristics 5V Electrical Characteristics 1.25V Typical Performance Characteristics 2.048V Typical Performance Characteristics 2.5V Typical Performance Characteristics 5V Typical Performance Characteristics Applications Information Simplified Schematic Package Description Revision History Typical Application Related Parts
FEATURES DESCRIPTION
n
High Accuracy:
The LT®1790 is a family of SOT-23 micropower low dropout
A Grade—0.05% Max
series references that combine high accuracy and low drift
B Grade—0.1% Max
with low power dissipation and small package size. These n
Low Drift:
micropower references use curvature compensation to
A Grade—10ppm/°C Max
obtain a low temperature coefficient and trimmed preci-
B Grade—25ppm/°C Max
sion thin-film resistors to achieve high output accuracy. In n
Low Thermal Hysteresis 40ppm (Typical) –40°C to 85°C
addition, each LT1790 is post-package trimmed to greatly n Low Supply Current: 60µA Max reduce the temperature coefficient and increase the output n Sinks and Sources Current accuracy. Output accuracy is further assured by excellent n Low Dropout Voltage line and load regulation. Special care has been taken to n Guaranteed Operational –40°C to 125°C minimize thermally induced hysteresis. n Wide Supply Range to 18V The LT1790s are ideally suited for battery-operated n Available Output Voltage Options: 1.25V, 2.048V, systems because of their small size, low supply current 2.5V, 3V, 3.3V, 4.096V and 5V and reduced dropout voltage. These references provide n Low Profile (1mm) ThinSOT™ Package supply current and power dissipation advantages over shunt references that must idle the entire load current to
APPLICATIONS
operate. Since the LT1790 can also sink current, it can operate as a micropower negative voltage reference with n Handheld Instruments the same performance as a positive reference. n Negative Voltage References L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear n Industrial Control Systems Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. n All other trademarks are the property of their respective owners. Data Acquisition Systems n Battery-Operated Equipment
TYPICAL APPLICATION Positive Connection for LT1790-2.5 Typical VOUT Distribution for LT1790-2.5
50 167 UNITS 4 6 2.6V ≤ V 45 IN ≤ 18V LT1790-2.5 VOUT = 2.5V 40 0.1µF 1µF LT1790B LIMITS 1, 2 35 LT1790A LIMITS 1790 TA01 30 25 20 NUMBER OF UNITS 15 10 5 0 2.498 2.499 2.500 2.501 2.502 OUTPUT VOLTAGE (V) 1790 TA02 1790fc For more information www.linear.com/LT1790 1 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Available Options 1.25V Electrical Characteristics 2.048V Electrical Characteristics 2.5V Electrical Characteristics 3V Electrical Characteristics 3.3V Electrical Characteristics 4.096V Electrical Characteristics 5V Electrical Characteristics 1.25V Typical Performance Characteristics 2.048V Typical Performance Characteristics 2.5V Typical Performance Characteristics 5V Typical Performance Characteristics Applications Information Simplified Schematic Package Description Revision History Typical Application Related Parts
