–3–

REV. 0

AD775

DIGITAL SPECIFICATIONS

AD775J

Parameter

Symbol

Min

Typ

Max

Units

LOGIC INPUT

High Level Input Voltage

5.0

4.0

V

Low Level Input Voltage

5.0

1.0

V

High Level Input Current

5.25

5

µA

Low Level Input Current

5.25

–5

µA

Logic Input Capacitance

5pF

LOGIC OUTPUTS

High Level Output Current

OE

4.75

–1.1

mA

OE

5.25

16

µA

Low Level Output Current

OE

4.75

3.7

mA

OE

5.25

16

µA

TIMING SPECIFICATIONS

Symbol

Min

Typ

Max

Units

Maximum Conversion Rate

20

35

MHz

Clock Period

50

ns

Clock High

25

ns

Clock Low

25

ns

Output Delay

18

30

ns

Pipeline Delay (Latency)

2.5

Clock Cycles

Sampling Delay

4ns

Aperture Jitter

30

ps

Specifications subject to change without notice.

VIN

CLK

OUT

SAMPLE N

SAMPLE N+1

SAMPLE N+2

DATA N-3

DATA N-2

DATA N-1

DATA N

t

OD

t

C

t

CL

t

CH

t

DS

Figure 1. AD775 Timing Diagram

CLOCK = 20 MHz unless otherwise noted)