AMS1004-1.2 ADMOS [Advanced Monolithic Systems], AMS1004-1.2 Datasheet

no-image

AMS1004-1.2

Manufacturer Part Number
AMS1004-1.2
Description
MICROPOWER VOLTAGE REFERENCE
Manufacturer
ADMOS [Advanced Monolithic Systems]
Datasheet
FEATURES
GENERAL DESCRIPTION
The AMS1004-1.2 is a two-terminal micropower band-gap voltage reference diode. It features a very low dynamic impedance
and good temperature coefficient, operating over a 10µA to 20mA current range. On-chip trimming is used to provide tight
voltage tolerance. Since the AMS1004-1.2 is a band-gap reference, uses only transistors and resistors, low noise and good
long term stability result. Careful design of the AMS1004-1.2 has made the device exceptionally tolerant of capacitive
loading, making it easy to use in almost any reference application. The wide dynamic operating range allows its use with
widely varying supplies with excellent regulation. The extremely low power drain of the AMS1004-1.2 makes these reference
diodes useful for micropower circuitry. This voltage reference can be used to make portable meters, regulators or general
purpose analog circuitry with battery life approaching shelf life.
Further more, the wide operating current allows it to replace older references with a tight tolerance part, making it attractive
for use in systems where accuracy was previously obtained at the expense of power consumption and trimming.
The AMS1004-1.2 is operational over a temperature range of 0 C to 70 C and is available in TO-92, SO-8 and SOT-89
packages. For extended temperature range contact factory.
ORDERING INFORMATION:
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
±4 mV (±0.3%) max. initial tolerance (A grade)
Operating Current 10 A to 20mA
Low Voltage Reference 1.235V
Max. 0.6
Low Temperature Coefficient
2.5V Device also available, AMS1004-2.5
±4mV
Advanced
Monolithic
Systems
TOL.
±15mV AMS1004-1.2BN
AMS1004-1.2AN
Dynamic Impedance (A grade)
TO-92
AMS1004-1.2AS
AMS1004-1.2BS
PACKAGE TYPE
8 LEAD SOIC
AMS1004-1.2AL
AMS1004-1.2BL
SOT-89
APPLICATIONS
MICROPOWER VOLTAGE REFERENCE
Battery Powered Systems
Instrumentation
A/D, D/A Converters
Temperature measurement
Current sources
Notebook/Personal Computer
Monitors/ VCR/ TV
Pagers
TEMPERATURE RANGE
OPERATING
AMS1004-1.2
0 to 70 C
0 to 70 C

Related parts for AMS1004-1.2

AMS1004-1.2 Summary of contents

Page 1

... Further more, the wide operating current allows it to replace older references with a tight tolerance part, making it attractive for use in systems where accuracy was previously obtained at the expense of power consumption and trimming. The AMS1004-1.2 is operational over a temperature range and is available in TO-92, SO-8 and SOT-89 packages. For extended temperature range contact factory. ...

Page 2

... SOT-89 package: 10 sec. = +25°C unless otherwise specified. A AMS1004A-1.2 Min Typ Max 1.231 1.235 0.2 1 max is +100°C j TO-92 SO-8 SOT-89 165°C/W 160°C/W AMS1004-1.2 - +150 C Infrared (15 sec.) AMS1004B-1.2 Min Typ 1.239 1.220 1.235 0. 25° 260 C 215 C ...

Page 3

... Adjust ZERO ADJ pot until voltage across R2 equals the thermocouple Seebeck coefficient multiplied by 273.2. R1 Thermocouple Type + J METER Typical supply current 50 A AMS1004-1.2 SOT-89 ( N/C Top View Reference from 1.5V Battery 1.5V 3k 1.2V AMS1004-1.2 Seebeck R1 R2 Voltage Coefficient ( ) ( ) Across R1 (mV (mV) 52.3 523 1.24k 15.60 42.8 432 1k 12.77 40.8 412 953 12.17 6.4 63.4 150 1.908 Voltage Across R2 (mV) 14 ...

Page 4

... M 0- 12k† OUT LM334 - 100 Calibration 1. Short AMS1004-1.2, adjust R3 for I 1 Remove short, adjust R2 for correct reading in F Micropower* 10V Reference 15V LM4250C 150pF 22M AMS1004-1 standby current ...

Page 5

... TEMPERATURE (° C) Noise Voltage 700 600 500 400 300 200 100 0 100k 10 100 1k 10k FREQUENCY (Hz) AMS1004-1.2 Forward Characteristics 1.2 0.8 T =-55° =25° 0.4 0 1.2 1.4 0.01 0.1 1 FORWARD CURRENT (mA) Reverse Dynamic Impedance 10k T =25° C ...

Page 6

... TYP AMS1004-1.2 0.060±0.010 (1.524±0.254) 0.140±0.010 (3.556±0.127) 10° 5° NOM NOM 0.015±0.002 N (TO-92 ) AMS DRW# 042391 (0.381±0.051) 0.010-0.020 x 45° ...

Page 7

... Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 SOT-89 PLASTIC PACKAGE (L) 0.173-0.181 (4.40-4.60) 0.055-0.063 (1.40-1.60) 0.064-0.072 (1.62-1.83) 0.084-0.090 (2.13-2.29) 0.035-0.047 (0.89-1.20) 0.014-0.019 (0.36-0.48) 0.017-0.022 (0.44-0.56) 0.118 (3.00) BSC AMS1004-1.2 0.014-0.017 (0.35-0.44) L (SOT-89 ) AMS DRW# 042392 ...

Related keywords