AMS255 MICROPOWER SHUNT VOLTAGE REFERENCE APPLICATIONS

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AMS255 MICROPOWER SHUNT VOLTAGE REFERENCE APPLICATIONS

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Temperature Coefficient Output Noise Operating Current 100µA Dynamic Impedance Tight Output Voltage Tolerance Available sub-miniature SOT-23 Package
AMS255
MICROPOWER SHUNT VOLTAGE REFERENCE
APPLICATIONS
Battery Powered Systems Instrumentation Energy Management Automotive Precision Audio Components Data Acquisition Systems
GENERAL DESCRIPTION
AMS255 two-terminal band-gap voltage reference diode featuring dynamic impedance good temperature coefficient, operating over 100µA current range. On-chip trimming used provide tight voltage tolerance. Since AMS255 band-gap reference uses only transistors resistors, noise good long term stability result. wide dynamic operating range allows with widely varying supplies with excellent regulation. These voltage references used make portable meters, regulators general purpose analog circuitry. AMS255 operational full industrial temperature range -40°C +85°C available small space saving SOT-23 package.
ORDERING INFORMATION:
MAX. TEMPCO 50ppm/°C 100ppm/°C PACKAGE TYPE LEAD SOT-23 AMS255AM AMS255BM OPERATING TEMP. RANGE +85°C +85°C
CONNECTIONS
SOT-23
*This must left floating connected
View
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
(925) 443-0723
AMS255
ABSOLUTE MAXIMUM RATINGS (Note
Reverse Current Forward Current Lead Temperature SOT-23 packages: Vapor phase sec) Infrared sec.) 10mA 10mA Storage temperature Internal Power Dissipation (PD) SOT-23 Package Thermal Resistance (JA) SOT-23 Package -65°C +150°C 0.28W 410°C/W
215°C 220°C
ELECTRICAL CHARACTERISTICS
Electrical Characteristics =1000 +25°C unless otherwise specified. Parameter
Output Voltage Output Impedance Noise Voltage Temperature Coefficient Turn-On Settling Operating Current 10Hz 10kHz Full Range 0.1% VOUT (Note
Conditions
AMS255A Min. Typ. Max.
2.475 2.500 2.525
AMS255B Min. Typ. Max.
2.450 2.500 2.550
Units
µVrms ppm/°C µsec
Note1: Absolute Maximum Ratings indicate limits beyond which damage device occur. guaranteed specifications test conditions, Electrical Characteristics. guaranteed specifications apply only test conditions listed. Note Parameters identified with boldface type apply temperature extremes. other numbers apply 25°C. Note Optimum performance obtained currents below 1000µA.
TYPICAL APPLICATIONS
Shunt Regulator
Precision 2.500V Reference
AMS255
AMS255
904, +2.500V 47k, 0.1% 47k, 0.1% 0.1µF
LMC6062 -2.500V
0.1µF
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
(925) 443-0723
AMS255
TYPICAL APPLICATIONS
Precision Current Sources
AMS255 AMS255
LMC6062
IOUT* -1.0V -12V
LMC6062 IOUT* 1.0V
-15V
IOUT=2.5V/R2
TYPICAL PERFORMANCE CHARACTERISTICS
Temperature Drift Different Average Temperature Coefficient +0.5 +0.4 +0.3 CHANGE +0.2 +0.1 -0.1 -0.2 -0.3
-51ppm/° -22ppm/° +12ppm/°
Reverse Characteristics Minimum Operating Current REVERSE CURRENT (µA)
=25°
Noise Voltage Frequency NOISE (mV/Hz)
=25°
REVERSE VOLTAGE
-0.4 -0.5
TEMPERATURE
FREQUENCY (Hz)
100k
Ouput Impedance Frequency
=25° 0.1I
Ouput Impedance Frequency
RMIN +100µA =25° 0.1I
IMPEDANCE
TANTALUM
IMPEDANCE
TANTALUM
100k FREQUENCY (Hz)
100k FREQUENCY (Hz)
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
(925) 443-0723
AMS255
PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted.
LEAD SOT-23 PLASTIC PACKAGE
0.110-0.120 (2.794-3.048) 0.015-0.017 (0.381-0.432)
0.083-0.098 (2.108-2.489) 0.047-0.055 (1.194-1.397)
0.035-0.040 (0.889-1.016)
0.018-0.024 (0.457-0.610)
0.035-0.041 (0.089-1.041) 0.0034-0.0050 (0.086-0.127) 0.0005-0.0040 (0.013-0.102) 0.070-0.080 (1.778-2.032) 0.018-0.024 (0.457-0.610)
(SOT-23 DRW# 051991
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
(925) 443-0723

AMS255 MICROPOWER SHUNT VOLTAGE REFERENCE APPLICATIONS

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