OA31 is an OR/AND circuit providing the logical function Q = [ (A+B+C).D ].

Truth Table

OA31

A

C

D

Q

B

Capacitance

AB

C

D

Q

Ci (pF)

L

L

L

X

L

A

0.055

X

X

X

L

L

B

0.055

X

X

H

H

H

C

0.063

X

H

X

H

H

D

0.032

HX

X

H

H

Area

Power

0.81 mils

2

2.40 µW / MHz

Delay [ns] = tpd.. = f(SL, L)

with SL = Input Slope [ns] ; L = Output Load [pF]

Output Slope [ns] = op_sl.. = f(L)

with L = Output Load [pF]

AC Characteristics :

Tj = 25°C

VDD = 3.3V

Typical Process

AC Characteristics

Characteristics

Symbol

SL = 0.1

SL = 2.0

L = 0.1

L = 0.7

L = 1.0

L = 0.1

L = 0.7

L = 1.0

Delay A to Q

tpdar

0.68

2.06

2.78

0.78

2.15

2.79

tpdaf

0.74

1.86

2.40

0.86

1.97

2.53

Delay B to Q

tpdbr

0.63

2.01

2.69

0.73

2.06

2.73

tpdbf

0.72

1.86

2.37

0.90

2.01

2.56

Delay C to Q

tpdcr

0.57

1.96

2.59

0.64

1.96

2.65

tpdcf

0.65

1.77

2.33

0.91

2.04

2.58

Delay D to Q

tpddr

0.63

2.02

2.70

0.80

2.19

2.85

tpddf

0.64

1.80

2.34

0.99

2.15

2.70

Output Slope A to Q

op_slar

1.00

5.37

7.36

0.96

5.21

7.52

op_slaf

0.77

3.67

4.98

0.76

3.57

5.07

Output Slope B to Q

op_slbr

1.00

5.17

7.61

0.93

5.30

7.50

op_slbf

0.77

3.63

5.05

0.78

3.73

4.98

Output Slope C to Q

op_slcr

0.98

5.27

7.56

0.95

5.26

7.52

op_slcf

0.77

3.51

5.05

0.76

3.61

4.95

Output Slope D to Q

op_sldr

1.00

5.37

7.61

0.95

5.30

7.53

op_sldf

0.80

3.65

5.35

0.86

3.81

5.33

Sept. 1996

- 284 -

Rev. N/C

Austria Mikro S ysteme International

R

0.6 µm CMOS

CUB

OA31