beautypg.com

Electrical characteristics (continued) – Maxim Integrated MAX12557 User Manual

Page 6

background image

MAX12557

Dual, 65Msps, 14-Bit, IF/Baseband ADC

6

_______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(V

DD

= 3.3V, OV

DD

= 2.0V, GND = 0, REFIN = REFOUT (internal reference), C

L

≈ 10pF at digital outputs, V

IN

= -0.5dBFS (differen-

tial), DIFFCLK/SECLK = OV

DD

, PD = GND, SHREF = GND, DIV2 = GND, DIV4 = GND, G/T = GND, f

CLK

= 65MHz, T

A

= -40°C to

+85°C, unless otherwise noted. Typical values are at T

A

= +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

D 0A–D 13A, D O RA,
D 0B–D 13B and D ORB Tr i - S tate
O utp ut C ap aci tance ( N ote 3)

C

OUT

3

pF

DAV Tri-State Output
Capacitance (Note 3)

C

DAV

6

pF

POWER REQUIREMENTS

Analog Supply Voltage

V

DD

3.15

3.30

3.60

V

Digital Output Supply Voltage

OV

DD

1.70

2.0

V

DD

V

Normal operating mode
f

IN

= 175MHz at -0.5dBFS,

single-ended clock
(DIFFCLK/SECLK = GND)

185

Normal operating mode
f

IN

= 175MHz at -0.5dBFS

differential clock
(DIFFCLK/SECLK = OV

DD

)

193

210

Analog Supply Current

I

VDD

Power-down mode (PD = OV

DD

)

clock idle

0.05

mA

Normal operating mode
f

IN

= 175MHz at -0.5dBFS

single-ended clock
(DIFFCLK/SECLK = GND)

610

Normal operating mode
f

IN

= 175MHz at -0.5dBFS

differential clock
(DIFFCLK/SECLK = OV

DD

)

637

693

Analog Power Dissipation

P

VDD

Power-down mode (PD = OV

DD

)

clock idle

0.165

mW

Normal operating mode
f

IN

= 175MHz at -0.5dBFS

21.3

Digital Output Supply Current

I

OVDD

Power-down mode (PD = OV

DD

)

clock idle

0.001

mA