LTC2204 datasheet(6/36 Pages) LINER

6 / 36 page

LTC2205/LTC2204

22054fb

TIMING DIAGRAM

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, with GND and OGND

shorted (unless otherwise noted).

Note 3: When these pin voltages are taken below GND or above VDD, they

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

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

Note 4: VDD = 3.3V, fSAMPLE = 65MHz (LTC2205), 40MHz (LTC2204)

differential ENC+/ENC– = 2VP-P sine wave with 1.6V common mode,

input range = 2.25VP-P with differential drive (PGA = 0), unless otherwise

speciﬁed.

Note 5: 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 6: Offset error is the offset voltage measured from –1/2LSB when the

output code ﬂickers between 0000 0000 0000 0000 and 1111 1111 1111

1111 in 2’s complement output mode.

Note 7: Guaranteed by design, not subject to test.

Note 8: Recommended operating conditions.

The

l denotes the speciﬁcations which apply over the full operating temperature

range, otherwise speciﬁcations are at TA = 25°C. (Note 4)

SYMBOL PARAMETER

CONDITIONS

MIN

LTC2204

TYP

MAX

MIN

LTC2205

TYP

MAX

UNITS

Sampling Frequency

MHz

ENC Low Time

Duty Cycle Stabilizer Off (Note 7)

Duty Cycle Stabilizer On (Note 7)

10.4

2.7

12.5

500

6.40

2.70

7.69

500

ENC High Time

Duty Cycle Stabilizer Off (Note 7)

Duty Cycle Stabilizer On (Note 7)

10.4

2.7

12.5

500

6.40

2.70

7.69

500

tAP

Sample-and-Hold

Aperture Delay

0.7

ENC to DATA Delay

(Note 7)

1.3

2.7

4.0

1.3

2.7

4.0

ENC to CLKOUT Delay

(Note 7)

1.3

2.7

4.0

1.3

2.7

4.0

tSKEW

DATA to CLKOUT Skew

(tD – tC) (Note 7)

–0.6

0.6

–0.6

0.6

tOE

DATA Access Time

Bus Relinquish Time

CL = 5pf (Note 7)

(Note 7)

Pipeline

Latency

Cycles

TIMING CHARACTERISTICS

N – 7

N – 6

N – 5

N – 4

N – 3

ANALOG

INPUT

ENC–

ENC+

CLKOUT –

CLKOUT+

D0-D15, OF

22054 TD01

tAP

N + 1

N + 2

N + 4

N + 3

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