Rainbow-electronics ADC081000 Bedienungsanleitung PDF herunterladen (Seite 8)

Converter Electrical Characteristics (Continued)

The following specifications apply after calibration for V

= +1.9V

, OutV = 1.9V, V

FSR (a.c. coupled) = differential

800mV

P-P

= 10 pF, Differential, a.c. coupled Sinewave Clock, f

CLK

= 1 GHz at 0.5V

P-P

with 50% duty cycle, R

EXT

= 3300Ω

0.1%, Analog Signal Source Impedance = 100Ω. Boldface limits apply for T

MIN

to T

MAX

. All other limits T

= 25˚C,

unless otherwise stated. (Notes 6, 7)

Symbol Parameter Conditions

Typical

(Note 8)

Limits

(Note 8)

Units

(Limits)

DIGITAL CONTROL PIN CHARACTERISTICS

Logic High Input Voltage (Note 12) 1.4 V (min)

Logic Low Input Voltage (Note 12) 0.5 V (max)

Input Current V

=0orV

1µA

Logic Input Capacitance (Note 13) Each input to ground 1.2 pF

DIGITAL OUTPUT CHARACTERISTICS

LVDS Differential Output Voltage

OutV = V

, measured single-ended 300

200 mV

P-P

(min)

450 mV

P-P

(max)

OutV = GND, measured

single-ended

225

140 mV

P-P

(min)

340 mV

P-P

(max)

∆ V

DIFF

Change in LVDS Output Swing

Between Logic Levels

1mV

Output Offset Voltage 800 mV

∆ V

Output Offset Voltage Change

Between Logic Levels

1mV

Output Short Circuit Current

Output+ & Output- connected to

0.8V

−4 mA

Differential Output Impedance 100 Ohms

POWER SUPPLY CHARACTERISTICS

Analog Supply Current

PD = Low

PD = High

646

4.5

792 mA (max)

Output Driver Supply Current

PD = Low 108 160 mA (max)

PD = High 0.1 mA

Power Consumption

PD = Low 1.43 1.8 W (max)

PD = High 8.7 mW

PSRR1 D.C. Power Supply Rejection Ratio

Change in Offset Error with change

in V

from 1.8V to 2.0V

73 dB

AC ELECTRICAL CHARACTERISTICS

CLK1

Maximum Conversion Rate

= 85˚C 1.1 1.0 GHz (min)

≤ 75˚C 1.3 GHz

≤ 70˚C 1.6 GHz

CLK2

Minimum Conversion Rate 200 MHz

Input Clock Duty Cycle

200 MHz ≤ Input clock frequency

1 GHz

% (min)

% (max)

Input Clock Low Time (Note 12) 500 200 ps (min)

Input Clock High Time (Note 12) 500 200 ps (min)

DCLK Duty Cycle (Note 12) 50

% (min)

% (max)

LHT

Differential Low to High Transition

Time

10% to 90%, C

= 2.5 pF 250 ps

HLT

Differential High to Low Transition

Time

10% to 90%, C

= 2.5 pF 250 ps

OSK

DCLK to Data Output Skew

(Note 11)

50% of DCLK transition to 50% of

Data transition

200 ps (max)

Sampling (Aperture) Delay

Input CLK+ Fall to Acquisition of

Data

930 ps

ADC081000

www.national.com 8

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 28 29

Kommentare zu diesen Handbüchern

Keine Kommentare

Rainbow-electronics ADC081000 Bedienungsanleitung Seite 8

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Sensoren Rainbow-electronics ADC081000