ADMOS AMS3100A-2.5CM Micropower voltage reference Datasheet

Advanced
Monolithic
Systems
AMS3100A-2.5
MICROPOWER VOLTAGE REFERENCE
FEATURES
APPLICATIONS
• ±12 mV (±0.5%) max. initial tolerance (A grade)
• Operating Current 20µ
µ A to 20mA
• Low Voltage Reference 2.50V
• Max. 0.5Ω
Ω Dynamic Impedance (A grade)
• Low Temperature Coefficient
• SOT-23 Package Available
• ±5% Output Voltage Precission Trimming
• Low cost
• Battery Powered Systems
• Instrumentation
• A/D, D/A Converters
• Temperature measurement
• Current sources
• Notebook/Personal Computer
• Monitors/ VCR/ TV
• Pagers
GENERAL DESCRIPTION
The AMS3100A-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. AMS3100A-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
AMS3100A-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. A third terminal allows the reference voltage
to be adjusted to ±5% to calibrate out system errors.
The AMS3100A-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
SOT-23
±12mV AMS3100A-2.5AM
±25mV AMS3100A-2.5BM
±25mV AMS3100A-2.5CM
OPERATING
TEMPERATURE RANGE
-40°C to 85°C
-40°C to 85°C
-40°C to 85°C
PIN CONNECTIONS
3L SOT-23
(M)
3
1
A
-
2
+
A = Adjust pin.
Top View
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
AMS3100-2.5
ABSOLUTE MAXIMUM RATINGS
Reverse Current
Forward Current
Operating Temperature Range
Storage temperature
30mA
10mA
-40°C to 85°C
-55°C to +150°C
Lead Temperature
Vapor phase (60 sec)
Infrared (15 sec.)
Thermal Resistance (θJA)
215°C
220°C
410°C/W
ELECTRICAL CHARACTERISTICS
Electrical Characteristics at IR = 100 µA, and TA = +25°C unless otherwise specified.
Parameter
Reverse Breakdown
Voltage (Note 3)
Reverse Dynamic
Impedance (Note 3)
Reverse Breakdown
Voltage Change with
current (Note 3)
Conditions
Min
2.488
2.500
2.512
IR - 100 µA, f =20Hz
0.2
0.60
10µA ≤IR ≤1mA
1mA ≤IR ≤20mA
1.0
10
12
IR - 100 µA,
10Hz ≤ f ≤ 10kHz
Temperature Coeff.
(Note 5)
Long Term Stability
(Note 4)
Min
AMS3100B-2.5
Typ
Max
2.475
2.500
2.525
AMS3100C-2.5
Min
Typ
Max
2.450
2.500
2.550
Units
V
IR - 100 µA
Min. Operating
Current (Note 3)
Wide Band Noise
(Note 4)
AMS3100A-2.5
Typ
Max
TA=25°C±.1°C
T = 1000 Hr
1
1.0
10
20
25
Ω
1
13
20
30
13
120
120
120
25
50
100
20
20
20
2.0
20
mV
20
30
µA
µA
µV
150
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
2.5V Reference
Wide Supply Range, Adjustable Reference
+3.6V TO +40V
VIN= 5V TO 35V
V+
LM334
3.6k
V-
R
62Ω
OUTPUT
AMS1009
OUTPUT
10k*
TRIM
AMS1009
10k
*Does not affect Temperature Coefficient
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
ppm/°C
ppm
AMS3100-2.5
TYPICAL PERFORMANCE CHARACTERISTICS
Reverse Characteristics
8
TA =25° C
4
TA =-40° C
0
10
TA =85° C
TA =-40° C
1
TA =25° C
0.1
1
10
REVERSE CURRENT (mA)
Reverse Dynamic Impedance
0.5 1.0
1.5 2.0
2.5
REVERSE VOLTAGE (V)
0.01
TA =-40° C
1
TA =25° C
0.1
100
Reverse Dynamic Impedance
2.510
2.500
2.490
2.480
2.470
2.460
2.450
-55 -35 -15 5 25 45 65 85 105 125
TEMPERATURE (° C)
10
1
10
100
10k
100k
1k
FREQUENCY (Hz)
IR= 100µA
AMS3100A-2.5
40
SHARP CUTOFF
FILTER
OUTPUT
VOLTAGE SWING (V)
OUTPUT
NOISE (nV/√Hz)
100µA
1000
800
600
400
200
0
1k
10k
100k
CUTOFF FREQUENCY (Hz)
Advanced Monolithic Systems, Inc.
1M
Response Time
1200
60
0
100
100
3.0
SINGLE POLE LOW PASS
100
20
1k
0.1
1400
IR= 100µA
TA =25° C
IR= 100µA
Noise Voltage
Filtered Output Noise
80
IR= 100µA
2.520
120
0.1
1
10
100
FORWARD CURRENT (mA)
10k
DYNAMIC IMPEDANCE ( Ω)
REFERENCE VOLTAGE (V)
TA =85° C
0.1
1
10
REVERSE CURRENT (mA)
TA =25° C
0.4
Temperature Drift
100
0.01
0.8
3.0
2.530
10
TA =-40° C
0
0
100
1.2
TA =85° C
0.1
-4
1000
DYNAMIC IMPEDANCE ( Ω)
1.6
FORWARD VOLTAGE (V)
TA =85° C
12
0.01
INTEGRATED NOISE (µV)
Forward Characteristics
100
REVERSE CURRENT ( µA)
OUTPUT VOLTAGE CHANGE (mV)
Reverse Characteristics
16
2.0
INPUT
100k
OUTPUT
1.0
0
~
~
~
~
10
INPUT
0
10
100
1k
10k
FREQUENCY (Hz)
www.advanced-monolithic.com
100k
0
Phone (925) 443-0722
200
400
TIME (µs)
600
Fax (925) 443-0723
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)
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
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