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AMS4040

MICROPOWER SHUNT VOLTAGE REFERENCE

Advanced Monolithic Systems
FEATURES
· Tight Output Voltage Tolerance · Low Output Noise · Operating Current 250µA to 100mA µ · Low Dynamic Impedance · Low Temperature Coefficient · Available in the sub-miniature SOT-23 Package · 1.2V Device ( AMS4041) also available
AMS4040
MICROPOWER SHUNT VOLTAGE REFERENCE
APPLICATIONS
· Battery Powered Systems · Instrumentation · Energy Management · Automotive · Precision Audio Components · Product Testing · Data Acquisition Systems
GENERAL DESCRIPTION
The AMS4040 is a two-terminal micropower band-gap voltage reference diode featuring a very low dynamic impedance and good temperature coefficient, operating over a 250µA to 100mA current range. On-chip trimming is used to provide tight voltage tolerance. Since the AMS4040 band-gap reference uses only transistors and resistors, low noise and good long term stability result. The wide dynamic operating range allows its use with widely varying supplies with excellent regulation. The extremely low power drain of the AMS4040 makes these reference diodes useful for micropower circuitry. These voltage references can be used to make portable meters, regulators or general purpose analog circuitry with battery life approaching shelf life. The AMS4040 is operational in the full industrial temperature range of -40°C to +85°and is available in small space saving TO-92, SO-8, SOT-89 and SOT-23 packages.
ORDERING INFORMATION:
PIN CONNECTIONS
TO-92 Plastic Package (N)
8L SOIC SO Package (S)
SOT-89 (L)
3L SOT-23 (M)
This pin must be left floating or connected to pin 2
Bottom View
Top View
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
AMS4040
ABSOLUTE MAXIMUM RATINGS (Note 1)
Reverse Current Forward Current Storage temperature Lead Temperature TO-92 package (Soldering 10 sec.) SO-8 and SOT-23 packages: Vapor phase (60 sec) Infrared (15 sec.) SOT-89 package (Soldering 10 sec.) 100mA 10mA -65°C to +150°C 265°C 215°C 220°C 265°C Internal Power Dissipation (PD) TO-92 Package SO-8 Package SOT-89 Package SOT-23 Package Thermal Resistance (JA) TO-92 Package SO-8 Package SOT-89 Package SOT-23 Package 0.78W 0.71W 0.91W 0.28W 160°C / W 175°C / W 110°C / W 410°C / W
Note1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed.
ELECTRICAL CHARACTERISTICS
Conditions
AMS4040A Typ Max
AMS4040B Typ Max
AMS4040C Typ Max
Units
ppm µVrms 0.5 250 µA
TYPICAL APPLICATIONS
Shunt Regulator
RS VR AMS4040-2.5
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
AMS4040
TYPICAL APPLICATIONS
Precision 1µ A to 1mA Current Sources µ
AMS4040-2.5 12V AMS4040-2.5 R1 20k
R1 20k
3 IOUT -1.0V TO -12V
8 1 / 2 LMC6062 3 4 + IOUT 1.0V TO 12V
1 / 2 LMC6062 + -2.500V
0.1µF -5V
START-UP CHARACTERISTICS
AMS4040-2.5
VR AMS4040-2.5
VIN (V)
VIN 1Hz rate
Test Circuit
VR (V)
RESPONSE TIME (µs)
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
AMS4040
TYPICAL PERFORMANCE CHARACTERISTICS
Reverse Characteristics and Minimum Operating Current 120 REVERSE CURRENT (µA)
Noise Voltage vs Frequency 10 5.0 NOISE (mV / Hz) 2.0 1.0 0.5 0.2 0.1
100 80 60 40 20 0 0 0.5 1.0 1.5 2.0 2.5 REVERSE VOLTAGE (V)
+12ppm / ° C
1k 10k 100 FREQUENCY (Hz)
Ouput Impedance vs Frequency 1k
IMPEDANCE ()
1k 10k 100k FREQUENCY (Hz)
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
AMS4040
PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted.
3 LEAD TO-92 PLASTIC PACKAGE (N)
0.90 (2.286) NOM
5° NOM 0.500 (12.70) MIN
10° NOM
0.050 (1.270) MAX
UNCONTROLLED LEAD DIMENSIONS
N (TO-92 ) AMS DRW# 042391
8 LEAD SOIC PLASTIC PACKAGE (S)
0.010-0.020 x 45° (0.254-0.508) 0°-8° TYP
0.050 (1.270) TYP
S (SO-8 ) AMS DRW# 042293
DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
AMS4040
PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted (Continued).
SOT-89 PLASTIC PACKAGE (L)
0.035-0.047 (0.89-1.20) 0.059 (1.50) BSC 0.118 (3.00) BSC 0.014-0.019 (0.36-0.48) 0.017-0.022 (0.44-0.56)
L (SOT-89 ) AMS DRW# 042392
3 LEAD SOT-23 PLASTIC PACKAGE (M)
10° NOM
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) 10° NOM 0.018-0.024 (0.457-0.610)
(SOT-23 ) AMS DRW# 051991
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723