Philips Semiconductors Linear Products

Product specification

DAC08 Series

8-Bit high-speed multiplying D/A converter

August 31, 1994

721

Figure 3. Reference Current Slew Rate Measurement

5

6

7

8

9

10

11

12

3

13

14

15

1

2

4

16

DAC-08

VEE

VCC

0.1

µF

OPEN

SCOPE

REQ = 200Ω

RL

RP

1k

RIN

VIN

dI

dt

+

I

R

L

dV

dt

SLEWING TIME

10%

90%

0

2.0mA

2V

0

Figure 4. Notation Definitions

NOTES:

(See text for values of C.)

Typical values of R14 = R15 = 1k

VREF = +2.0V

C = 15pF

VI and II apply to inputs A1 through A8

The resistor tied to Pin 15 is to temperature compensate the bias current and may not be necessary for all applications.

I

O +

K

A

1

2

)

A

2

4

)

A

3

8

)

A

4

16 )

A

5

32 )

A

6

64 )

A

7

128 )

A

8

256

where K

[

V

REF

R

14

and AN = ‘1’ if AN is at High Level

AN = ‘0’ if AN is at Low Level

5

6

7

8

9

10

11

12

3

13

14

15

1

2

4

16

DAC-08

VCC

DIGITAL

INPUTS

OUTPUT

ICC

VO

VREF (+)

IO

RL

C

VEE

IEE

VI

II

(+)

R15

R14

I15

I14

A1

A2

A3

A4

A5

A6

A7

A8