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Electrical characteristics (continued) – Rainbow Electronics MAX1425 User Manual

Page 4

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MAX1425

10-Bit, 20Msps ADC

4

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ELECTRICAL CHARACTERISTICS (continued)

(V

AVDD

= V

CMLP

= +5V, V

DVDD

= +3.3V, V

CMLN

= V

AGND

= V

DGND

= 0, internal reference, digital output load = 35pF, f

CLK

= 20MHz

(50% duty cycle), T

A

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at T

A

= +25°C.)

I

OE/PD

OE/PD = DV

DD

V

DVDD

= 5.25V, OE/PD = DV

DD

I

OL

= 200µA, V

DVDD

= 2.7V

I

OH

= -200µA, V

DVDD

= 2.7V

V

DVDD

= 5.25V

V

DVDD

< 4.75V

V

DVDD

> 4.75V

OE/PD = DV

DD

V

DVDD

= 5.0V

REFIN = AGND

OE/PD = DV

DD

V

DVDD

< 4.75V

V

DVDD

= 3.3V

V

DVDD

> 4.75V

CONDITIONS

pF

10

Three-State Capacitance

µA

-10

10

Three-State Leakage

V

0.5

VOL

Output Logic Low

V

V

DVDD

V

DVDD

- 0.5

VOH

Output Logic High

pF

10

Input Capacitance

µA

-20

20

µA

-10

10

Input Current Leakage

0.3

·

V

DVDD

V

0.8

V

IL

Input Logic Low

0.7

·

V

DVDD

V

2.4

V

IH

Input Logic High

mW

172

220

PD

Power Dissipation

µA

90

150

Digital Shutdown Current

8.5

14

mA

26

35

Analog Supply Current with
Internal Reference in Shutdown

nA

0.6

1

Analog Shutdown Current

mA

5.3

9

I

DVDD

Digital Supply Current

UNITS

MIN

TYP

MAX

SYMBOL

PARAMETER

Figure 4

Figure 4

ps

7

t

AJ

Aperture Jitter

ns

5

t

AD

Aperture Delay

cycles

5.5

Pipeline Delay (Latency)

ns

20

25

30

t

CL

Clock Low

ns

20

25

30

t

CH

Clock High

MHz

20

f

CLK

Clock Frequency

MHz

0.1

20

CONV

Conversion Rate

V

2.7

3.3

5.5

V

DVDD

Digital Supply Voltage

V

4.75

5.00

5.25

V

AVDD

Analog Supply Voltage

mA

31

38

I

AVDD

Analog Supply Current

I

CLK

ns

10

20

t

AJ

Bus Disable

ns

10

20

t

AD

Bus Enable

ns

5

20

25

t

OD

Data Output Delay

POWER SUPPLY

DIGITAL INPUTS (CLK, OE/PD)

DIGITAL OUTPUTS (D0–D9)

TIMING CHARACTERISTICS