Advanced Monolithic Systems, Inc.

6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140

AMS431

ABSOLUTE MAXIMUM RATINGS (Note 1)

37V

-10mA to +150mA

TO-92 Package

0.78W

10mA

SO-8 Package

0.71W

-40

°C to +125°C

SOT-89 Package

0.91W

SOT-23 Package

0.28W

Storage temperature

-65

°C to +150°C

Thermal Resistance (

ϕ

Lead Temperature (Soldering, 10sec.)

265

°C

TO-92 Package

160

°C/W

SO-8 Package

175

°C/W

SOT-89 Package

110

°C/W

SOT-23 Package

410

°C/W

intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics

guaranteed specifications apply only for the test conditions listed.

ELECTRICAL CHARACTERISTICS

Parameter

Conditions

AMS431A

Min

Typ

Max

AMS431B

Min

Typ

Max

AMS431C

Min

Typ

Max

Units

Reference Voltage

2.489

2.495

2.501

2.483

2.495

2.507

2.470

2.495

2.520

V

Deviation of Reference

Input Voltage over

Temperature

°C to +85°C

°C to +25°C

8.0

8.0

15

15

8.0

8.0

15

15

8.0

8.0

15

15

mV

mV

Ratio of Change in

-0.5

-2.7

-0.5

-2.7

-0.5

-2.7

mV/V

Reference Voltage to

Cathode Voltage

-1.0

-2.0

-1.0

-2.0

-1.0

-2.0

mV/V

Reference Input Current

R1 =10k

Ω, R2 = ∞Ω

(test circuit 2)

0.5

4.0

0.5

4.0

0.5

4.0

µA

Reference Input Current

Deviation over

Temperature

R1 =10k

Ω, R2 = ∞Ω

(test circuit 2)

0.4

1.2

0.4

1.2

0.4

1.2

µA

Off State Cathode

Current

( test circuit 3)

0.04

0.5

0.04

0.5

0.04

0.5

µA

Dynamic Output

Impedance

µA to 100mA

(test circuit 1)

0.25

0.5

0.25

0.5

0.25

0.5

Ω

Minimum Operating

Current

(test circuit 1)

100

250

100

250

100

250

µA

RECOMMENDED OPERATING CONDITIONS:

Min

Max

36 V

0.25mA

120mA