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
:
TOL.
±0.25%
±0.5%
±1.0%
TO-92
AMS4040AN
AMS4040BN
AMS4040CN
PACKAGE TYPE
8 LEAD SOIC
AMS4040AS
AMS4040BS
AMS4040CS
SOT-89
AMS4040AL
AMS4040BL
AMS4040CL
3 LEAD SOT-23
AMS4040AM
AMS4040BM
AMS4040CM
OPERATING
TEMP. RANGE
-40 to +85° C
-40 to +85° C
-40 to +85° C
PIN CONNECTIONS
TO-92
Plastic Package (N)
N/C
3
+
2
-
1
8L SOIC
SO Package (S)
N/C
N/C
N/C
-
1
2
3
4
8
7
6
5
+
N/C
N/C
SOT-89
(L)
3L SOT-23
(M)
3 *
1
N/C
2
3
1
+
2
-
*This pin must be left floating
or connected to pin 2
Bottom View
Top View
Top View
Top View
Advanced Monolithic Systems, Inc.
6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
ADMOS [ ADVANCED MONOLITHIC SYSTEMS ]
