Advanced Monolithic Systems AMS4041 Service Manual

http://www.BDTIC.com/AMS

Advanced AMS4041

Monolithic MICROPOWER SHUNT VOLTAGE REFERENCE
Systems

RoHS compliant

FEATURES APPLICATIONS

• Tight Output Voltage Tolerance • Battery Powered Systems

• Low Output Noise • Instrumentation

• Operating Current 60µA to 100mA • Energy Management

• Low Dynamic Impedance • Automotive

• Low Temperature Coefficient • Precision Audio Components

• Available in the sub-miniature SOT-23 Package • Product Testing

• 2.5V Device ( AMS4040) also available • 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. PACKAGE TYPE OPERATING

TO-92 8 LEAD SOIC SOT-89 3 LEAD SOT-23

±0.25%
±0.5%
±1.0%

AMS4041AN AMS4041AS AMS4041AL AMS4041AM
AMS4041BN AMS4041BS AMS4041BL AMS4041BM
AMS4041CN AMS4041CS AMS4041CL AMS4041CM

PIN CONNECTIONS

TO-92 8L SOIC SOT-89 3L SOT-23

Plastic Package (N) SO Package (S) (L) (M)

-

+

N/C

Bottom View Top View Top View Top View

123

:

TEMP. RANGE

-40 to +85° C

-40 to +85° C

-40 to +85° C

N/C

N/C
N/C

1
2
3
4

-

8

+

7

N/C
N/C

6
5

N/C

3 *

123

*This pin must be left floating
or connected to pin 2

21

+-

Advanced Monolithic Systems, Inc.

AMS4041

http://www.BDTIC.com/AMS

ABSOLUTE MAXIMUM RATINGS (Note 1)

Reverse Current 100mA Internal Power Dissipation (PD)
Forward Current 10mA TO-92 Package 0.78W
Storage temperature
Lead Temperature (25 sec)

-65°C to +150°C
265°C

SOT-23 Package 0.28W

TO-92 Package
SO-8 Package
SOT-89 Package
SOT-23 Package

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

AMS4041A

Min Typ Max

SO-8 Package 0.71W
SOT-89 Package 0.91W

Thermal Resistance (θ

)

JA

160°C/W
175°C/W
110°C/W
410°C/W

AMS4041B

Min Typ Max

AMS4041C

Min Typ Max

Units

Reverse Breakdown
Voltage

Deviation of Reverse
Breakdown Voltage
over Temperature

Reverse Breakdown
Voltage Change with

Operating Current
Change

Reverse Breakdown
Voltage Long Term
Stability

Wide Band Noise

Reverse Dynamic
Impedance

Minimum Operating
Current

Parameters identified with boldface type apply at temperature extremes. All other numbers apply at TA = TJ = 25°C.

1.222 1.225 1.228 1.219 1.225 1.231 1.213 1.225 1.237 V

= Full Range 8.0 17 8.0 17 8.0 25 mV

T

A

≤ IR ≤ 1mA

I

RMIN

≤ IR ≤ 15mA

1mA

=25°C±.1°C

T

A

T = 1000 Hr

≤ f ≤ 10kHz

10HZ
IR = 1mA, f = 120Hz,

IAC = 0.1IR

120 120 120 ppm

20 20 20

0.5 1.5 0. 5 1.5 0.5 2.0

60 80

0.7

4.0

1.5

2.0

6.0

8.0

100

0.7 1.5

2.5 6.0

60 80

TYPICAL APPLICATIONS

Shunt Regulator

V

S

2.0

8.0

100

0.7 2.0

2.5

2.5 8.0

10.0

µV

60 80

100

mV

mV

Ω

µA

rms

Advanced Monolithic Systems, Inc.

AMS4041

IQ + I

R

S

V

R

L

I

L

I

Q

http://www.BDTIC.com/AMS

TYPICAL APPLICATIONS

AMS4041

AMS4041

Precision 1µA to 1mA Current Sources

12V

AMS4041

-1.0V TO -12V

R1
20k

2

-

8
1/2
LMC6062

3

+

I

*

OUT

-15V

1

4

R2

1.0V TO 12V

I

=1.2V/R2

OUT

R1
20k

2

­8

1/2
LMC6062

+

I

*

OUT

1

43

R2

Programmable Current Source

12V

30

k

12

A

OUT

LF13006
LF13007

DIGITAL

CONTROL

2

INPUT

3

ANA
GND

+

1/2
LMC6062

-

42

AMS4041

+12V

0.1µF

8

5

+

1/2
LMC6062

7

1

123Ω

-

, 0.5%

6

I

OUT

Advanced Monolithic Systems, Inc.

I

= 1.2V/123Ω(1/gain set #)

OUT

http://www.BDTIC.com/AMS

START-UP CHARACTERISTICS

R

S

V

1Hz rate

IN

AMS4041

Test circuit

V

R

TYPICAL PERFORMANCE CHARACTERISTICS

Temperature Drift for Different
Average Temperature Coefficient

+0.5
+0.4
+0.3
+0.2
+0.1

0

-0.1

CHANGE (%)

R

-0.2

V

-0.3

-0.4

-0.5

-40 -20 0 20 40 60 80

-22ppm/° C

-51ppm/° C

TEMPERATURE ( ° C)

IR = 150µ A

+12ppm/° C

100

Reverse Characteristics and
Minimum Operating Current

100

A)

80

µ

60

40

20

REVERSE CURRENT (

0

0.4

0

REVERSE VOLTAGE (V)

0.8

(V)

IN

V

(V)

R

V

1.2 1.6

AMS4041

R

= 30 kAMS4041

S

5

0

3

2

1

0

020406080

RESPONSE TIME (µs)

TJ =25° C IR = 200µ A

1000

800

Hz)

√

600

400

NOISE (mV/

200

2.0

T

= 25°C

J

Noise Voltage vs Frequency

0

110

100

FREQUENCY (Hz)

1k 10k

TJ =25° C

100k

Ouput Impedance vs Frequency

1k

100

)

Ω

IR= 1mA
TJ =25° C, ∆IR= 0.1I

10

IMPEDANCE (

1

0.1
100 1k 10k 100k

FREQUENCY (Hz)

Advanced Monolithic Systems, Inc.

R

C
TANTALUM

L

XC

CL= 0

= 1µF

L

1M

Ouput Impedance vs Frequency

1k

100

)

Ω

IR= 150µA

TJ =25° C, ∆IR= 0.1I

10

IMPEDANCE (

1

0.1
100 1k 10k 100k

FREQUENCY (Hz)

R

CL= 1µF
TANTALUM

XC

CL= 0

L

1M

http://www.BDTIC.com/AMS

PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted.

3 LEAD TO-92 PLASTIC PACKAGE (N)

0.060±0.005

(1.524±0.127)

DIA

0.180±0.005

(4.572±0.127)

0.180±0.005

(4.572±0.127)

0.90

(2.286)

NOM

AMS4041

0.060±0.010

(1.524±0.254)

0.140±0.010

(3.556±0.127)

10°

NOM

N (TO-92 ) AMS DRW# 042391

0.500

(12.70)

MIN

0.050±0.005

(1.270±0.127)

UNCONTROLLED

0.050

(1.270)

LEAD DIMENSIONS

MAX

0.016±0.003

(0.406±0.076)

5° NOM

0.015±0.002

(0.381±0.051)

8 LEAD SOIC PLASTIC PACKAGE (S)

0.189-0.197*

(4.801-5.004)

87 65

0.228-0.244

(5.791-6.197)

0.150-0.157**

(3.810-3.988)

12 34

0.053-0.069

(1.346-1.752)

0.014-0.019

(0.355-0.483)

*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.

0.050

(1.270)

TYP

0.004-0.010

(0.101-0.254)

0.008-0.010

(0.203-0.254)

0.010-0.020
(0.254-0.508)

0.016-0.050

(0.406-1.270)

x 45°

0°-8° TYP

S (SO-8 ) AMS DRW# 042293

http://www.BDTIC.com/AMS

PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted (Continued).

SOT-89 PLASTIC PACKAGE (L)

0.173-0.181

0.155-0.167
(3.94-4.25)

0.090-0.102
(2.29-2.60)

(4.40-4.60)

0.064-0.072
(1.62-1.83)

0.035-0.047
(0.89-1.20)

0.055-0.063
(1.40-1.60)

0.084-0.090
(2.13-2.29)

AMS4041

0.014-0.017
(0.35-0.44)

0.059
(1.50)

BSC

0.118
(3.00)

BSC

0.017-0.022
(0.44-0.56)

0.014-0.019
(0.36-0.48)

L (SOT-89 ) AMS DRW# 042392

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)

0.035-0.041

(0.089-1.041)

0.0005-0.0040
(0.013-0.102)

Advanced Monolithic Systems, Inc.

0.070-0.080

(1.778-2.032)

10°

NOM

10°

NOM

0.018-0.024
(0.457-0.610)

0.0034-0.0050
(0.086-0.127)

(SOT-23 ) AMS DRW# 051991