ADMOS AMS4041C

Advanced
Monolithic
Systems
AMS4041
MICROPOWER SHUNT VOLTAGE REFERENCE
RoHS compliant
FEATURES
APPLICATIONS
• Tight Output Voltage Tolerance
• Low Output Noise
• Operating Current 60µA to 100mA
• Low Dynamic Impedance
• Low Temperature Coefficient
• Available in the sub-miniature SOT-23 Package
• 2.5V Device ( AMS4040) also available
• Battery Powered Systems
• Instrumentation
• Energy Management
• Automotive
• Precision Audio Components
• Product Testing
• Data Acquisition Systems
GENERAL DESCRIPTION
The AMS4041 is a two-terminal micropower band-gap voltage reference diode featuring a very low dynamic impedance and
good temperature coefficient, operating over a 60µA to 100mA current range. On-chip trimming is used to provide tight
voltage tolerance. Since the AMS4041 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 AMS4041 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 AMS4041 is operational in the full industrial temperature range of -40°C to 85°and is available in small space saving TO92, SO-8, SOT-89 and SOT-23 packages.
ORDERING INFORMATION:
TOL.
±0.25%
±0.5%
±1.0%
PACKAGE TYPE
TO-92
AMS4041AN
AMS4041BN
AMS4041CN
8 LEAD SOIC
AMS4041AS
AMS4041BS
AMS4041CS
OPERATING
SOT-89
AMS4041AL
AMS4041BL
AMS4041CL
3 LEAD SOT-23
AMS4041AM
AMS4041BM
AMS4041CM
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
1
8
+
N/C
2
7
N/C
N/C
3
6
N/C
-
4
5
N/C
SOT-89
(L)
3L SOT-23
(M)
3 *
1
2
3
1
+
2
-
*This pin must be left floating
or connected to pin 2
Bottom View
Advanced Monolithic Systems, Inc.
Top View
Top View
www.advanced-monolithic.com
Phone (925) 443-0722
Top View
Fax (925) 443-0723
AMS4041
ABSOLUTE MAXIMUM RATINGS (Note 1)
Reverse Current
Forward Current
Storage temperature
Lead Temperature (25 sec)
100mA
10mA
-65°C to +150°C
265°C
Internal Power Dissipation (PD)
TO-92 Package
SO-8 Package
SOT-89 Package
SOT-23 Package
Thermal Resistance (θJA)
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
Electrical Characteristics at IR =100 µA and TA = +25°C unless otherwise specified.
Parameter
Conditions
Reverse Breakdown
Voltage
Deviation of Reverse
Breakdown Voltage
over Temperature
Reverse Breakdown
Voltage Change with
Operating Current
Change
Min
AMS4041A
Typ
Max
1.222
1.225
1.228
TA = Full Range
8.0
IRMIN ≤ IR ≤ 1mA
0.7
Min
1.219
AMS4041B
Typ
Max
1.225
1.231
17
8.0
1.5
0.7
2.0
1mA ≤ IR ≤ 15mA
4.0
6.0
Min
1.213
AMS4041C
Typ
Max
1.225
1.237
V
17
8.0
25
mV
1.5
0.7
2.0
mV
2.0
2.5
8.0
Units
6.0
2.5
2.5
8.0
8.0
mV
10.0
Reverse Breakdown
Voltage Long Term
Stability
TA=25°C±.1°C
T = 1000 Hr
120
120
120
ppm
Wide Band Noise
10HZ ≤ f ≤ 10kHz
20
20
20
µVrms
Reverse Dynamic
Impedance
IR = 1mA, f = 120Hz,
0.5
IAC = 0.1IR
Minimum Operating
Current
60
1.5
0. 5
80
60
100
1.5
0.5
80
60
100
2.0
Ω
80
µA
100
Parameters identified with boldface type apply at temperature extremes. All other numbers apply at TA = TJ = 25°C.
TYPICAL APPLICATIONS
Shunt Regulator
VS
RS
IQ + IL
IL
VR
AMS4041
Advanced Monolithic Systems, Inc.
IQ
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
AMS4041
TYPICAL APPLICATIONS
Precision 1µA to 1mA Current Sources
AMS4041
12V
AMS4041
R1
20k
2
-
R1
20k
8
1/2
LMC6062
3
4
+
IOUT*
2
-
8
1/2
LMC6062
3
4
+
1
R2
IOUT*
-1.0V TO -12V
1
R2
1.0V TO 12V
-15V
IOUT=1.2V/R2
Programmable Current Source
12V
30k
12
AOUT
LF13006
LF13007
AMS4041
DIGITAL
CONTROL
+12V
0.1µF
2
INPUT ANA
GND
8
+
5
1/2
LMC6062
7
6
3
2
+
1/2
LMC6062
4
-
1
123Ω, 0.5%
IOUT
IOUT = 1.2V/123Ω(1/gain set #)
Advanced Monolithic Systems, Inc.
www.advanced-monolithic.com
Phone (925) 443-0722
Fax (925) 443-0723
AMS4041
START-UP CHARACTERISTICS
AMS4041
RS
VIN
1Hz rate
VR
RS = 30 k
5
VIN (V)
AMS4041
Test circuit
0
TJ = 25°C
VR (V)
3
2
1
0
0
20
40
60
80
RESPONSE TIME ( µs)
TYPICAL PERFORMANCE CHARACTERISTICS
Reverse Characteristics and
Minimum Operating Current
Temperature Drift for Different
Average Temperature Coefficient
VR CHANGE (%)
+0.2
+12ppm/° C
+0.1
0
-0.1
-22ppm/° C
-0.3
-51ppm/° C
IR = 200µ A
TJ =25° C
80
800
NOISE (mV/√Hz)
REVERSE CURRENT ( µA)
TJ =25° C
+0.3
-0.4
-0.5
-40 -20
1000
IR = 150µ A
+0.4
-0.2
Noise Voltage vs Frequency
100
+0.5
60
40
20
100
0
0
0.4
1.2
1.6
0.8
REVERSE VOLTAGE (V)
Ouput Impedance vs Frequency
1
10
1k
10k
100
FREQUENCY (Hz)
100k
Ouput Impedance vs Frequency
100
CL= 0
10
2.0
1k
IR= 1mA
TJ =25° C, ∆IR= 0.1IR
CL= 1µF
TANTALUM
1
IMPEDANCE (Ω)
IMPEDANCE (Ω)
1k
400
200
0
0
20 40 60 80
TEMPERATURE ( ° C)
600
IR= 150µA
TJ =25° C, ∆IR= 0.1IR
CL= 0
100
CL= 1µF
TANTALUM
10
1
XCL
XCL
0.1
0.1
100
1k
10k
100k
FREQUENCY (Hz)
Advanced Monolithic Systems, Inc.
1M
www.advanced-monolithic.com
100
1k
10k
100k
FREQUENCY (Hz)
Phone (925) 443-0722
1M
Fax (925) 443-0723
AMS4041
PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted.
3 LEAD TO-92 PLASTIC PACKAGE (N)
0.180±0.005
(4.572±0.127)
0.060±0.005
(1.524±0.127)
DIA
0.060±0.010
(1.524±0.254)
0.90
(2.286)
NOM
0.180±0.005
(4.572±0.127)
0.140±0.010
(3.556±0.127)
5° NOM
0.500
(12.70)
MIN
0.050
(1.270)
MAX
UNCONTROLLED
LEAD DIMENSIONS
0.015±0.002
(0.381±0.051)
0.016±0.003
(0.406±0.076)
0.050±0.005
(1.270±0.127)
10°
NOM
N (TO-92 ) AMS DRW# 042391
8 LEAD SOIC PLASTIC PACKAGE (S)
0.189-0.197*
(4.801-5.004)
8
7
6
5
0.228-0.244
(5.791-6.197)
0.150-0.157**
(3.810-3.988)
1
2
3
4
0.010-0.020 x 45°
(0.254-0.508)
0.053-0.069
(1.346-1.752)
0.004-0.010
(0.101-0.254)
0.014-0.019
(0.355-0.483)
0.008-0.010
(0.203-0.254)
0.050
(1.270)
TYP
0°-8° TYP
0.016-0.050
(0.406-1.270)
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
AMS4041
PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted (Continued).
SOT-89 PLASTIC PACKAGE (L)
0.173-0.181
(4.40-4.60)
0.055-0.063
(1.40-1.60)
0.014-0.017
(0.35-0.44)
0.064-0.072
(1.62-1.83)
0.155-0.167
(3.94-4.25)
0.084-0.090
(2.13-2.29)
0.090-0.102
(2.29-2.60)
0.035-0.047
(0.89-1.20)
0.059
(1.50)
BSC
0.014-0.019
(0.36-0.48)
0.017-0.022
(0.44-0.56)
L (SOT-89 ) AMS DRW# 042392
0.118
(3.00)
BSC
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