ADMOS AMS336BS, AMS336BN, AMS336AS, AMS336AN, AMS236BS Datasheet

Advanced AMS236/AMS336
Monolithic VOLTAGE REFERENCE DIODE
Systems

FEATURES APPLICATIONS

•• Low Temperature Coefficient •• Power Supplies

•• Wide Operating Current Range •• Instrumentation

•• Guaranteed Temperature Stability •• 8 Bit A/D, D/A Reference

•• Max. 0.6ΩΩ Dynamic Impedance (A grade) •• Current Loop Measurement and Control Systems

•• ±1% Initial Tolerance Available •• Reference for 5V Systems

GENERAL DESCRIPTION

The AMS236/AMS336 are precision band-gap voltage reference diodes. These voltage reference features a very low dynamic
impedance and good temperature coefficient, operating over a wide current range of 400µA to 10mA. On-chip trimming is
used to provide tight tolerance and minimize temperature drift. A third terminal allows the reference voltage to be trimmed
±5%.
The AMS236/AMS336 are used as a precision 2.5V low voltage reference for digital voltmeters, power supplies or op amp
circuitry, and the 2.5V make it easy to obtain a stable reference from 5V logic supplies.

The AMS236 is rated for operation over -25°C to +85°C while the AMS336 is rated over a 0°C to 70°C temperature range.
The AMS236/AMS336 are available in TO-92 and SO-8 packages.

ORDERING INFORMATION:

TOL. PACKAGE TYPE OPERATING

TO-92 8 LEAD SOIC

±25mV AMS236AN AMS236AS
±50mV AMS236BN AMS236BS
±50mV AMS336AN AMS336AS

±100mV AMS336BN AMS336BS

TEMPERATURE RANGE

-25°C to +85°C

-25°C to +85°C
0°C to 70°C
0°C to 70°C

PIN CONNECTIONS

TO-92 8L SOIC

Plastic Package (N) SO Package (S)

N/C ADJN/C

+

123

8437 56

1 2

N/C N/C N/C

Bottom View

Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone [phone] Fax [phone]

Top View

-

AMS236/AMS336

ABSOLUTE MAXIMUM RATINGS (Note 1)

Reverse Current 15mA Storage temperature
Forward Current 10mA Soldering information
Operating Temperature Range TO-92 package: 10 sec.
AMS236
AMS336

-25°C to +85°C
0°C to +70°C

SOIC package: Vapor phase (60 sec)
Infrared (15 sec.)

ELECTRICAL CHARACTERISTICS

Electrical Characteristics at IR = 1 mA, and TA = +25°C unless otherwise specified.

-55°C to +150°C
260°C

215°C
220°C

Parameter Conditions

Reverse Breakdown Voltage 2.475 2.500 2.525 2.450 2.500 2.550 V
Reverse Dynamic Impedance f = 100Hz 0.2

Reverse Breakdown Voltage
Change with current

Temperature Stability

Long Term Stability (Note 4)

400µA ≤IR ≤10mA

-25°C ≤ TA ≤ +85°C

TA=25°C±0.1°C
T = 1000 Hr

Min Typ Max

AMS236A

Min Typ Max

0.6

0.4

2.6

3

3.5 9 3.5 9 mV

20 20 ppm

1

6

10

AMS236B

0.2

0.4

2.6

3

0.6

10

Units

1

6

mV

ELECTRICAL CHARACTERISTICS

Electrical Characteristics at IR = 1 mA, and TA = +25°C unless otherwise specified.

Parameter Conditions

Reverse Breakdown Voltage 2.450 2.500 2.550 2.400 2.500 2.600 V
Reverse Dynamic Impedance f = 100Hz 0.2

Reverse Breakdown Voltage
Change with current

Temperature Stability

400µA ≤IR ≤10mA

0°C ≤ TA ≤ 70°C

Min Typ Max

AMS336A

Min Typ Max

1.0

0.4

2.6

3

1.8 6 1.8 6 mV

1.4

10

12

AMS336B

0.2

0.4

2.6

3

1.0

1.4

10

12

Units

mV

Ω

Ω

Long Term Stability (Note 4)

TA=25°C±0.1°C
T = 1000 Hr

20 20 ppm

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, T

AMS236 +125°C
AMS336 +100°C

max is:

j

Thermal Resistance TO-92 SO-8

ϕ

(junction to ambient)

JA

Note 3: Parameters identified with boldface type apply at temperature extremes. All other numbers apply at T

170°C/W (0.125” leads) 165°C/W

= TJ = 25°C.

A

Note 4: Temperature stability for the AMS236/336 family is guaranteed by design. Design limits are guaranteed (but not 100% production tested) over the

specified temperature and supply voltage ranges. These limits are not used to calculate outgoing quality levels. The average temperature coefficient is defined as the
maximum deviation of reference voltage at all measured temperatures between the operating T

MAX and TMIN

, divided by T

MAX

- T

MIN

.

Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone [phone] Fax [phone]