Rainbow-electronics ADC08D1000 Manual de usuario descargar pdf (Pagina 9)

Converter Electrical Characteristics (Continued)

[Note: This product is currently in development. As such, the parameters specified in this section are DESIGN TAR-

GETS. The specifications in this section cannot be guaranteed until device characterization has taken place.]

The following specifications apply after calibration for V

= +1.9V

, OutV = 1.9V, V

FSR (a.c. coupled) = differential

860mV

P-P

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

CLK

= 1 GHz at 0.5V

P-P

with 50% duty cycle, Non-

Extended Control Mode, 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 noted. (Notes 6, 7)

Symbol Parameter Conditions

Typical

(Note 8)

Limits

(Note 8)

Units

(Limits)

ANALOG OUTPUT CHARACTERISTICS

Bandgap Reference Output

Voltage

100 µA 1.26

1.22

1.33

V (min)

V (max)

TC V

Bandgap Reference Voltage

Temperature Coefficient

= −40˚C to +85˚C,

100 µA

28 ppm/˚C

LOAD

Maximum Bandgap Reference load

Capacitance

80 pF

TEMPERATURE DIODE CHARACTERISTICS

Temperature Diode Voltage

∆I

DIODE

, 100 µA vs. 10 µA,

= 25˚C

TBD mV

∆I

DIODE

, 100 µA vs. 10 µA,

= 85˚C

TBD mV

CHANNEL-TO-CHANNEL CHARACTERISTICS

Offset Match 2 TBD LSB (max)

Positive Full-Scale Match

Zero offset selected in Control

6 TBD mV (max)

Negative Full-Scale Match

Zero offset selected in Control

6 TBD mV (max)

X-TALK Crosstalk from I to Q Channel

Aggressor =867 MHz F.S.

Victim = 100 MHz F.S.

-77 dB

X-TALK Crosstalk from Q to I Channel

Aggressor =867 MHz F.S.

Victim = 100 MHz F.S.

-77 dB

CLOCK INPUT CHARACTERISTICS

Differential Clock Input Level

Sine Wave Clock 0.6

0.4

2.0

P-P

(min)

P-P

(max)

Square Wave Clock 0.6

0.4

2.0

P-P

(min)

P-P

(max)

Input Current V

=0orV

1µA

Input Capacitance (Note 11)

Differential 0.02 pF

Each input to ground 1.5 pF

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

=0orV

, Pins 4, 14, 127

80 µA

=0orV

, All Other Pins

1µA

Input Capacitance (Note 11) Each input to ground 1.2 pF

DIGITAL OUTPUT CHARACTERISTICS

LVDS Differential Output Voltage

OutV = V

, measured differentially 600

400 mV

P-P

(min)

900 mV

P-P

(max)

OutV = GND, measured

differentially

450

280 mV

P-P

(min)

680 mV

P-P

(max)

∆ V

O DIFF

Change in LVDS Output Swing

Between Logic Levels

1mV

Output Offset Voltage 800 mV

ADC08D1000

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Rainbow-electronics ADC08D1000 Manual de usuario Pagina 9

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