Rainbow-electronics MAX1215 Manual do Utilizador descarregar pdf (Página 4)

MAX1215

1.8V, 12-Bit, 250Msps ADC for

Broadband Applications

4 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(AV

= OV

= 1.8V, AGND = OGND = 0, f

SAMPLE

= 250MHz, differential sine-wave clock input drive, 0.1µF capacitor on REFIO,

internal reference, digital output pins differential R

= 100Ω±1%, T

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at

= +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

LVCMOS DIGITAL INPUTS (CLKDIV, T/B)

Digital Input-Voltage Low V

0.2 x AV

Digital Input-Voltage High V

0.8 x AV

TIMING CHARACTERISTICS

CLK-to-Data Propagation Delay t

PDL

Figure 4

1.75

CLK-to-DCLK Propagation Delay

CPDL

Figure 4

3.87

DCLK-to-Data Propagation Delay

PDL

- t

CPDL

Figure 4 (Note 3)

1.66 2.12 2.48

LVDS Output Rise Time t

RISE

20% to 80%, C

= 5pF

460

LVDS Output Fall Time t

FALL

20% to 80%, C

= 5pF

460

Output Data Pipeline Delay

LATENCY

Figure 4 11

Clock

cycles

POWER REQUIREMENTS

Analog Supply Voltage Range AV

1.70 1.80 1.90

Digital Supply Voltage Range OV

1.70 1.80 1.90

Analog Supply Current I

AVCC

= 100MHz

495

555 mA

Digital Supply Current I

OVCC

= 100MHz 64 75 mA

Analog Power Dissipation P

DISS

= 100MHz

1006 1134

Offset 1.8

mV/V

Power-Supply Rejection Ratio

(Note 3)

PSRR

Gain 1.5

%FS/V

Note 1: ≥+25°C guaranteed by production test, <+25°C guaranteed by design and characterization.

Note 2: Static linearity and offset parameters are based on the end-point fit method. The full-scale range (FSR) is defined as 4095 x

slope of the line.

Note 3: Parameter guaranteed by design and characterization: T

= T

MIN

to T

MAX

Note 4: PSRR is measured with both analog and digital supplies connected to the same potential.

1 2 3 4 5 6 7 8 9 ... 19 20

Broadband Applications 1

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