1–8

Chapter 1: Cyclone III Device Data Sheet

Electrical Characteristics

Cyclone III Device Handbook, Volume 2

© January 2010

Altera Corporation

Table 1–7 lists the OCT calibration accuracy at device power-up.

The OCT resistance may vary with the variation of temperature and voltage after

calibration at device power-up. Use Table 1–8 and Equation 1–1 to determine the final

OCT resistance considering the variations after calibration at device power-up.

Table 1–8 lists the change percentage of the OCT resistance with voltage and

temperature.

Table 1–7. Cyclone III Devices Series OCT with Calibration at Device Power-Up Specifications

Description

V

Calibration Accuracy

Unit

Commercial Max

Industrial and Automotive

Max

Series OCT with

calibration at device

power-up

3.0

±10

±10

%

2.5

±10

±10

%

1.8

±10

±10

%

1.5

±10

±10

%

1.2

±10

±10

%

Table 1–8. Cyclone III Devices OCT Variation After Calibration at Device Power-Up

Nominal Voltage

dR/dT (%/°C)

dR/dV (%/mV)

3.0

0.262

–0.026

2.5

0.234

–0.039

1.8

0.219

–0.086

1.5

0.199

–0.136

1.2

0.161

–0.288

Equation 1–1.

(Note 1), (2), (3), (4), (5), (6)

ΔR

ΔR

For

ΔR

ΔR

For

ΔR

ΔR

MF = MF

R

Notes to Equation 1–1:

(3) MF is multiplication factor.

(7)

(8)

(9) dR/dT is the change percentage of resistance with temperature after calibration at device power-up.

(10) dR/dV is the change percentage of resistance with voltage after calibration at device power-up.