AMS3100-25BM 概述
MICROPOWER VOLTAGE REFERENCE 微功耗电压参考
AMS3100-25BM 数据手册
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Monolithic
Systems
AMS3100-2.5
MICROPOWER VOLTAGE REFERENCE
FEATURES
APPLICATIONS
· ±12 mV (±0.5%) max. initial tolerance (A grade)
· Operating Current 20mA to 20mA
· Low Voltage Reference 2.50V
· Max. 0.5W Dynamic Impedance (A grade)
· Low Temperature Coefficient
· SOT-23 Package Available
· Battery Powered Systems
· Instrumentation
· A/D, D/A Converters
· Temperature measurement
· Current sources
· Notebook/Personal Computer
· Monitors/ VCR/ TV
· Pagers
· Low cost
GENERAL DESCRIPTION
The AMS3100-2.5 are two-terminal micropower band-gap voltage reference that feature a very low dynamic impedance and
good temperature coefficient, operating over a 20µA to 20mA current range. AMS3100-2.5 is trimmed at wafer test level to
optimize the temperature coefficient and tight output voltage tolerance. The advanced process technology used, makes the
AMS3100-2.5 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, 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. Further more, the wide
operating current allows it to replace older references with a tight tolerance part. Pin to pin compatible with other standard
industry references, the AMS3100-2.5 offers the advantage of long term stability at low cost.
The AMS3100-2.5 is operating over a -40°C to 85°C temperature range and is available in the space saving SOT-23
package.
ORDERING INFORMATION:
TOL.
PACKAGE TYPE
OPERATING
TEMPERATURE RANGE
SOT-23
±12mV AMS3100-2.5AM
±25mV AMS3100-2.5BM
±50mV AMS3100-2.5CM
-40°C to 85°C
-40°C to 85°C
-40°C to 85°C
PIN CONNECTIONS
3L SOT-23
(M)
3 *
1
2
+
-
*This pin must be left floating or
connected to pin 2
Top View
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
AMS3100-2.5
ABSOLUTE MAXIMUM RATINGS
Reverse Current
Forward Current
30mA
10mA
Lead Temperature
Vapor phase (60 sec)
Infrared (15 sec.)
Thermal Resistance (qJA)
215°C
220°C
410°C/W
Operating Temperature Range
Storage temperature
-40°C to 85°C
-55°C to +150°C
ELECTRICAL CHARACTERISTICS
Electrical Characteristics at IR = 100 mA, and TA = +25°C unless otherwise specified.
AMS3100A-2.5
AMS3100B-2.5
AMS3100C-2.5
Parameter
Conditions
Units
Min
Typ
Max
Min
Typ
Max Min
Typ
Max
Reverse Breakdown
Voltage (Note 3)
2.488
2.500
2.512
0.60
2.475
2.500
2.525
2.450
2.500
2.550
V
IR - 100 µA
Reverse Dynamic
Impedance (Note 3)
Reverse Breakdown
Voltage Change with
current (Note 3)
0.2
1
1
W
IR - 100 µA, f =20Hz
1.0
10
1.0
10
2.0
20
mV
10mA £IR £1mA
1mA £IR £20mA
Min. Operating
Current (Note 3)
12
20
25
13
20
30
13
20
30
mA
mA
Wide Band Noise
(Note 4)
IR - 100 µA,
10Hz £ f £ 10kHz
120
120
120
mV
ppm/°C
ppm
Temperature Coeff.
(Note 5)
25
50
100
150
Long Term Stability
(Note 4)
20
20
20
TA=25°C±.1°C
T = 1000 Hr
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The
guaranteed specifications apply only for the test conditions listed.
Note 2: Parameters identified with boldface type apply at temperature extremes. All other numbers apply at TA = TJ = 25°C.
Note 3: Guaranteed and 100% production tested
Note 4:. Guaranteed but not 100% production tested. These limits are not used to calculate average outgoing quality levels.
Note 5: The average temperature coefficient is defined as the maximum deviation of reference voltage at all measured temperatures between the operating TMAX and
TMIN, divided by TMAX - TMIN. The measured temperatures are -40°C, 25°C and 85°C.
TYPICAL APPLICATIONS
Wide Input
Range Reference
Micropower Reference
from 9V Battery
9V
VIN = 3.7V TO 30V
200k
LM334
2.5V
3.3k
AMS3100-2.5
OUT
2.5V
AMS3100-2.5
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
AMS3100-2.5
TYPICAL APPLICATIONS (Continued)
0°C - 100°C Thermometer
0°C - 100°C Thermometer
1k
150
M
M
0-100
mA
m
0-50 A
R1
8k
R1
4k
IOUT
IOUT
R2
1k
R2
1k
V+
3V
V+
3V
R
R
LM334
V-
LM334
V-
AMS3100-2.5
AMS3100-2.5
R3
100
R3
50
R4
R4
220
100
Calibration
Calibration
1. Short AMS3100-2.5, adjust R3 for IOUT = temp at 1mA/°K
2. Remove short, adjust R2 for correct reading in °C
1. Short AMS3100-2.5, adjust R3 for IOUT = temp at 1.8mA/°K
2. Remove short, adjust R2 for correct reading in °F
Micropower* 5V Regulator
Micropower* 10V Reference
IQ
IQ
VIN
³ 5.2V
VIN = 15V
V+
47k
R
500k
2
LM334
2N2905
7
+
-
V-
2.2k
6
LM4250C
10V
3
+
-
8
7
3
VO = 5V
IL 100mA
6
4
1.5M
LM4250C
150pF
£
22M
2
1N457
1N457
8
4
100k
100k
150pF
+
4.7
F
m
TANTALUM
500k
AMS3100-2.5
10M
2k
AMS3100-2.5
*IQ @ 40mA
*IQ @ 20mA standby current
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
AMS3100-2.5
TYPICAL APPLICATIONS (Continued)
Micropower Thermocouple Cold Junction Compensator
V+
LM334
2k
1%
18k
1M
1%
R
Adjustment Procedure
V-
TC ADJ
500
+
ZERO
3V
1. Adjust TC ADJ pot until voltage across R1 equals Kelvin temperature
multiplied by the thermocouple Seebeck coefficient.
ADJ 100k
LITHIUM
AMS3100-2.5
2. Adjust ZERO ADJ pot until voltage across R2 equals the thermocouple
Seebeck coefficient multiplied by 273.2.
R2
R1
Thermocouple
Type
Seebeck
Coefficient
(mV/ °C)
R1
R2
Voltage
Voltage
Across R2
(mV)
(W) (W) Across R1
@ 25°C (mV)
+
-
+
-
J
52.3
42.8
40.8
6.4
523 1.24k
432 1k
412 953W 12.17
63.4 150W 1.908
15.60
12.77
14.32
11.78
11.17
1.766
THERMOCOUPLE
METER
T
K
S
COLD JUNCTION
ISO THERMAL
WITH LM334
Typical supply current 50mA
Precision 1mA to 1mA Current Sources
AMS3100-2.5
30V
AMS3100-2.5
C1
150pF
C1
150pF
R1
68k
R1
2
3
-
68k
7
2
3
-
6
7
LM312
6
LM312
4
+
4
+
IOUT*
R2
IOUT*
1.5V TO 27V
R2
-1.5V TO -27V
-30V
*IOUT =2.5V/R2
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
AMS3100-2.5
TYPICAL PERFORMANCE CHARACTERISTICS
Reverse Characteristics
Reverse Characteristics
Forward Characteristics
100
10
16
12
8
1.6
1.2
0.8
TA =85° C
TA =-40° C
TA =85° C
TA =25° C
TA =-40° C
4
0
TA =25° C
1
TA =-40° C
0.4
0
TA =25° C
TA =85° C
0.1
-4
0
0.5
2.0
0.01
0.1
1
10
100
1.0
1.5
3.0
0.01
0.1
1
10
100
2.5
REVERSE VOLTAGE (V)
FORWARD CURRENT (mA)
REVERSE CURRENT (mA)
Reverse Dynamic Impedance
Temperature Drift
Reverse Dynamic Impedance
10k
1k
2.530
1000
100
TA =25° C
IR= 100 mA
2.520
2.510
2.500
2.490
IR= 100 mA
TA =85° C
TA =-40° C
100
10
10
1
2.480
2.470
2.460
2.450
1
TA =25° C
0.1
0.1
-35 -15
-55
10
5
65 85 105
25 45
TEMPERATURE (° C)
100
10k
100k
125
1M
0.01
0.1
1
10
100
1k
FREQUENCY (Hz)
REVERSE CURRENT (mA)
Noise Voltage
Filtered Output Noise
Response Time
120
100
80
1400
3.0
2.0
SINGLE POLE LOW PASS
IR= 100 mA
IR= 100 mA
OUTPUT
INPUT
1200
1000
800
100mA
OUTPUT
100k
OUTPUT
1.0
0
60
600
AMS3100-2.5
~
~
~
~
40
20
0
400
10
0
INPUT
SHARP CUTOFF
FILTER
200
0
100
1k
10k
100k
10
100
1k
10k
100k
0
200
TIME (
400
s)
600
CUTOFF FREQUENCY (Hz)
FREQUENCY (Hz)
m
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
AMS3100-2.5
PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted.
3 LEAD SOT-23 PLASTIC PACKAGE (M)
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)
10°
NOM
0.035-0.041
(0.089-1.041)
0.0034-0.0050
(0.086-0.127)
10°
NOM
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 ) AMS DRW# 051991
Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
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