SPX432(2004) Ver la hoja de datos (PDF) - Signal Processing Technologies

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SPX432
(Rev.:2004)

1.24V Precision Adjustable Shunt Regulator

Signal Processing Technologies 

CALCULATION AVERAGE TEMPERATURE COEFICIENT (TC)

ppm

%

0

0

5000

0.5

mV

0

∆VREF

∆T

-5

0 15 30 45 60 75 90 105

Junction Temperature (°C)

• TC in mV / °C = ∆VREF(mV)

∆TA

( ) • TC in % / °C =

∆VREF

∆VREF at 25°C

x 100

∆TA

( ) • TC in ppm / °C =

∆VREF

∆VREF at 25°C

x 106

∆TA

Figure 1. VREF VS Temperature.

0.0033mV /°C

0.0027% / °C

27ppm/°C

TEST CIRCUITS

VIN

IREF

VKA = VREF

VIN

VKA

VIN

IK

R1

IREF

IK

(VREF)

R2

VKA

IK (OFF)

Figure 2. Test Circuit for VKA = VREF Figure 3. Test Circuit for VKA > VREF Figure 4. Test Circuit for IKOFF

Date: 12/11/04

SPX432 1.24V Precision Adjustable Shunt Regulator

3

© Copyright 2004 Sipex Corporation

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