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LTC1798CS8#TRPBF

Description
IC VREF SERIES ADJ 8SOIC
CategoryPower/power management    The power supply circuit   
File Size734KB,10 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
Download Datasheet Parametric View All

LTC1798CS8#TRPBF Overview

IC VREF SERIES ADJ 8SOIC

LTC1798CS8#TRPBF Parametric

Parameter NameAttribute value
Is it Rohs certified?conform to
Parts packaging codeSOIC
package instructionSOP, SOP8,.25
Contacts8
Reach Compliance Codecompliant
ECCN codeEAR99
Analog Integrated Circuits - Other TypesTHREE TERMINAL VOLTAGE REFERENCE
JESD-30 codeR-PDSO-G8
JESD-609 codee3
length4.9 mm
Humidity sensitivity level1
Number of functions1
Output times1
Number of terminals8
Maximum operating temperature70 °C
Minimum operating temperature
Maximum output voltage2.3945 V
Minimum output voltage2.3755 V
Nominal output voltage2.385 V
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeSOP8,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)250
Certification statusNot Qualified
Maximum seat height1.75 mm
Maximum supply voltage (Vsup)12.6 V
surface mountYES
technologyCMOS
Maximum voltage temperature coefficient40 ppm/°C
Temperature levelCOMMERCIAL
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperature40
Fine-tuning/adjustable outputYES
Maximum voltage tolerance0.4%
width3.9 mm
Base Number Matches1
LTC1798 Series
Micropower Low
Dropout References
FEATURES
n
n
n
n
n
n
n
DESCRIPTION
The LTC
®
1798/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.
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
APPLICATIONS
n
n
n
n
n
Battery-Powered Systems
Handheld Instruments
Precision Power Supplies
A/D and D/A Converters
Available in the SO-8 Package
L,
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.
TYPICAL APPLICATION
2.5V Battery-Powered Reference
LTC1798-2.5
2.7V
TO 12.6V
2
0.1µF
GND
4
1798 TA01
LTC1798-2.5 Temperature Drift
4
REFERENCE VOLTAGE CHANGE (mV)
3
2
1
0
–1
–2
–3
–4
–40
–20
0
20
40
60
TEMPERATURE (°C)
80
100
IN
OUT
6
2.5V
1798 TA02
1798fc
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