LTM9012 datasheet(6/28 Pages) LINER

6 / 28 page

LTM9012

9012f

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2: All voltage values are with respect to GND (unless otherwise

noted).

Note 3: Input pins are protected by steering diodes to either supply. If

the inputs should exceed either supply voltage, the input current should

be limited to less than 10mA. In addition, the inputs CHn+, CHn– are

protected by a pair of back-to-back diodes. If the differential input voltage

exceeds 1.4V, the input current should be limited to less than 10mA.

Note 4: When these pin voltages are taken below GND or above VDD, they

will be clamped by internal diodes. This product can handle input currents

greater than 100mA below GND or above VDD without latchup.

Note 5: When these pin voltages are taken below GND they will be

clamped by internal diodes. When these pin voltages are taken above VDD

they will not be clamped by internal diodes. This product can handle input

currents greater than 100mA below GND without latchup.

elecTrical characTerisTics

Note 6: VCC = 3.3V, VDD = OVDD = 1.8V, fSAMPLE = 125MHz, 2-lane output

mode, differential ENC+/ENC– = 2VP-P sine wave, input range = 200mVP-P

with differential drive, unless otherwise noted.

Note 7: Integral nonlinearity is defined as the deviation of a code from a

best fit straight line to the transfer curve. The deviation is measured from

the center of the quantization band.

Note 8: Offset error is the offset voltage measured from –0.5 LSB when

the output code flickers between 00 0000 0000 0000 and 11 1111 1111

1111 in 2’s complement output mode.

Note 9: Guaranteed by design, not subject to test.

Note 10: Recommended operating conditions.

Note 11: The maximum sampling frequency depends on the speed grade

of the part and also which serialization mode is used. The maximum serial

data rate is 1000Mbps so tSER must be greater than or equal to 1ns.

Note 12: Near-channel crosstalk refers to CH1 and CH2. Far channel

crosstalk refers to CH1 to CH4.

TiMing DiagraMs

ANALOG

INPUT

ENC–

ENC+

DCO–

DCO+

tAP

tENCH

tENCL

tSER

tPD

tDATA

tFRAME

SAMPLE N-6

*SEE THE DIGITAL OUTPUTS SECTION

SAMPLE N-5

SAMPLE N-4

N+1

9012 TD01

D5 D3 D1

0 D13 D11 D9 D7 D5 D3 D1

0 D13 D11 D9

OUT#A–

OUT#A+

FR–

FR+

D4 D2 D0

0 D12 D10 D8 D6 D4 D2 D0

0 D12 D10 D8

OUT#B–

OUT#B+

2-Lane Output Mode, 16-Bit Serialization*

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