ADS5287

SBAS428D – JANUARY 2008 – REVISED JUNE 2012

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DIGITAL CHARACTERISTICS

DC specifications refer to the condition where the digital outputs are not switching, but are permanently at a valid logic level

'0' or '1'. At CLOAD = 5pF

(1), I

OUT = 3.5mA

(2), R

LOAD = 100Ω

(2), and no internal termination, unless otherwise noted.

ADS5287

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

DIGITAL INPUTS

High-level input voltage

1.4

V

Low-level input voltage

0.3

V

High-level input current

33

μA

Low-level input current

–33

μA

Input capacitance

3

pF

LVDS OUTPUTS

High-level output voltage

1375

mV

Low-level output voltage

1025

mV

Output differential voltage, |VOD|

350

mV

VOS output offset voltage

Common-mode voltage of OUTP and OUTN

1200

mV

Output capacitance inside the device,

Output capacitance

2

pF

from either output to ground

(1)

CLOAD is the effective external single-ended load capacitance between each output pin and ground.

(2)

IOUT refers to the LVDS buffer current setting; RLOAD is the differential load resistance between the LVDS output pair.

4

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