AMS05 - Advanced Monolithic Systems

Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140

Advanced AMS04/AMS05

Monolithic VOLTAGE REFERENCES

Systems

FEATURES APPLICATIONS

•• Low Temperature Coefficient •• Battery Powered Systems

•• Wide Operating Current Range •• Instrumentation

AMS04…………………….15µµA to 20mA •• A/D, D/A Converters

AMS05…………………….20µµA to 20mA •• Current sources

•• Max. 1ΩΩ Dynamic Impedance •• Power Supplies

•• Typ. 2% Output tolerance •• Telecommunication

GENERAL DESCRIPTION

The AMS04 and the AMS05 are two-terminal, band-gap voltage reference diodes, with an output voltage of 1.25V for the

AMS04 and 2.5V for the AMS05. These devices feature low dynamic impedance and good temperature coefficient, operating

over a wide current range. Since the band-gap reference of these devices 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 AMS04 and AMS05 can be used for portable meters, regulators, data acquisition converters and

telecommunication.

The AMS04 and AMS05 are operational over a temperature range of 0°C to 70°C and are available in TO-92 and SO-8

packages.

ORDERING INFORMATION:

MAX. PACKAGE TYPE OPERATING

TEMPCO TO-92 8 LEAD SOIC TEMPERATURE RANGE

50ppm/°C AMS04AN AMS04AS 0 to 70°C

100ppm/°C AMS04BN AMS04BS 0 to 70°C

50ppm/°C AMS05AN AMS05AS 0 to 70°C

100ppm/°C AMS05BN AMS05BS 0 to 70°C

PIN CONNECTIONS

TO-92 SO-8

Plastic Package (N) SO Package (S)

Bottom View Top View

1 2

7 56

N/C N/CN/C

N/C N/C N/C

Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140

AMS04/AMS05

ABSOLUTE MAXIMUM RATINGS

Reverse Current 30mA Soldering information

Forward Current 10mA TO-92 package: 10 sec. 260°C

Operating Temperature Range 0°C to 70°C SOIC package: Vapor phase (60 sec) 215°C

Storage temperature -55°C to +150°C Infrared (15 sec.) 220°C

ELECTRICAL CHARACTERISTICS

Electrical Characteristics at IR = 100 µA, and TA = +25°C unless otherwise specified.

Parameter Conditions AMS04

Min Typ Max AMS05

Min Typ Max Units

Reverse Breakdown

Voltage IR = 100 µA1.235 1.250 1.265 2.475 2.50 2.525 V

Reverse Dynamic

Impedance IR = 100 µA1 1 Ω

Reverse Breakdown 15µA ≤IR ≤20mA

20µA ≤IR ≤1mA 10

0.25 20

1.0 mV

Voltage Change 20µA ≤IR ≤20mA

25µA ≤IR ≤1mA 10

0.25 2.0

1.0 mV

Min. Operating Current 10 20 µA

Wide Band Noise 10Hz ≤ f ≤ 10kHz 60 60 µV

Temperature Coeff.

AMS04A/AMS05A

AMS04B/AMS05B

IR = 100 µA (Note 3) 50

100

100 ppm/°C

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: For elevated temperature operation, TJ max is +100°C

Thermal Resistance TO-92 SO-8

ϕ JA (junction to ambient) 170°C/W (0.125” leads) 165°C/W

Note 3: 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 0°C, 25°C and 70°C.

TYPICAL APPLICATIONS

Precision Current Source Battery Powered 1.25V Reference 10V Reference

LM312 6

RSET

81kΩ

+15V 1µF

IOUT*

AMS04

SET

OUT R

1.25V

I *=

AMS05

50k

VOUT = 10VLM312

0.1µF

180kΩ

60kΩ

+15V

AMS04

1.2V

360kΩ

Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140

AMS04/AMS05

TYPICAL PERFORMANCE CHARACTERISTICS

-2

0.1 1 10 100

AMS04 Reverse Characteristics

OUTPUT VOLTAGE CHANGE (mV)

TA =25° C

0.01 0

0.4

1.2

0.1 1 10 100

0.8

0.01

REVERSE CURRENT (mA) 00.2 0.4 0.6 0.8 1.0 1.2

0.1

100

1.4

REVERSE VOLTAGE (V)

REVERSE CURRENT (µA)

AMS04 Reverse Characteristics AMS04 Forward Characteristics

FORWARD CURRENT (mA)

FORWARD VOLTAGE (V)

TA =25° C

1.0

2.0

0200 400 600

TIME (µs)

AMS04 Response Time

VOLTAGE SWING (V)

0.5

1.5

~OUTPUT

100k

INPUT

OUTPUT

INPUT

-4

0.1 1 10 100

AMS05 Reverse Characteristics

OUTPUT VOLTAGE CHANGE (mV)

TA =25° C

0.01 REVERSE CURRENT (mA) 00.5 1.0 1.5 2.0 2.5

0.1

100

3.0

REVERSE VOLTAGE (V)

REVERSE CURRENT (µA)

Reverse Characteristics

TA =25° C

0.4

1.6

0.1 1 10 100

0.8

0.01

AMS05 Forward Characteristics

FORWARD CURRENT (mA)

FORWARD VOLTAGE (V)

1.2

TA =25° C

1.0

3.0

0 200 400 600

TIME (µs)

AMS05 Response Time

VOLTAGE SWING (V)

2.0

OUTPUT

100k

INPUT

OUTPUT

INPUT

Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140

AMS04/AMS05

PACKAGE DIMENSIONS inches (millimeters) unless otherwise noted.

3 LEAD TO-92 PLASTIC PACKAGE (N)

8 LEAD SOIC PLASTIC PACKAGE (S)

0.140±0.010

(3.556±0.127)

0.060±0.010

(1.524±0.254)

0.015±0.002

(0.381±0.051)

0.016±0.003

(0.406±0.076)

0.050±0.005

(1.270±0.127)

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)

0.050

(1.270)

MAX

0.500

(12.70)

MIN UNCONTROLLED

LEAD DIMENSIONS

10°

NOM

5° NOM

N (TO-92 ) AMS DRW# 042391

0.90

(2.286)

NOM

0°-8° TYP

0.010-0.020

(0.254-0.508)

S (SO-8 ) AMS DRW# 042293

x 45°

0.016-0.050

(0.406-1.270)

0.008-0.010

(0.203-0.254)

0.004-0.010

(0.101-0.254)

0.014-0.019

(0.355-0.483)

0.053-0.069

(1.346-1.752)

0.050

(1.270)

TYP

0.150-0.157**

(3.810-3.988)

0.228-0.244

(5.791-6.197)

0.189-0.197*

(4.801-5.004)

*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

1 2 3 4

8 7 6 5