AS2431
Average Temperature Coefficient
Precision Adjustable Shunt Reference
00 0
–10
5000 0.5
∆VREF
∆T
–20
0
15 30 45 60 75 90 105
Temperature (°C)
0.07 mV/°C
0.003%/°C
27 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
Test Circuits
VIN
VKA = VREF
VIN
VKA
VIN
VKA
IREF
IK
IK
R1
IREF
(VREF)
R2
IK (OFF)
Figure 1a. Test Circuit 1
Figure 1b. Test Circuit 2
Figure 1c. Test Circuit 3
ASTEC Semiconductor
4