AS1431DR4ST Ver la hoja de datos (PDF) - Unspecified

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AS1431DR4ST

Precision Adjustable Shunt Reference

Unspecified 

Precision Adjustable Shunt Reference

AS1431

Electrical Characteristics

Electrical Characteristics are guaranteed over full junction temperature range (Ð55 to 125¡C). Ambient temperature must be derated

based on power dissipation and package thermal characteristics. The conditions are: VKA = VREF and IK = 10 mA unless otherwise stated.

Parameter

Symbol

Test Condition

Reference Voltage

VREF

TA = 25¡C

Over temp.

ÆVREF with Temp*

Ratio of Change in VREF to

Cathode Voltage

TC

ÆVREF

ÆVK = 3 V to 36 V

Reference Input Current

IREF

R1 = 10 k ½; R2 = °

IREF Temp Deviation

ÆIREF

Over temp.

Min IK for Regulation

IK(min)

Off State Leakage

IK(off)

VREF = 0 V,

VKA = 36 V

Dynamic Output Impedance ZKA

f ² 1 kHz

IK = 1 to 100 mA

*Calculating Average Temperature Coefficient (TC)

Min.

2.490

2.470

Ð2

Typ.

2.500

0.06

Ð1.1

0.7

0.4

0.4

0.04

0.15

Max.

2.510

2.530

0.16

1.9

1.2

1

500

0.2

Unit

V

V

mV/¡C

mV/V

µA

µA

mA

nA

½

Circuit

1

1

1

2

2

2

1

3

1

Average Temperature Coefficient

00 0

–10

5000 0.5

∆VREF

∆T

–20

–55 –25

0 25 50 75 100 125

Temperature (°C)

0.06 mV/°C

0.002%/°C

24 ppm/°C

• TC in mV/°C = ∆VREF (mV)

∆TA

• TC in %/°C =

∆VREF

VREF at 25°C

∆TA

X 100

• TC in ppm/°C =

∆VREF

VREF at 25°C

∆TA

X 106

ASTEC Semiconductor

3

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