LTC2285 datasheet(5/24 Pages) LINER

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LTC2285

2285fb

The

l denotes the speciﬁcations which apply over the full operating temperature

range, otherwise speciﬁcations are at TA = 25°C. (Note 8)

POWER REQUIREMENTS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VDD

Analog Supply Voltage

(Note 9)

●

2.85

3.4

OVDD

Output Supply Voltage

(Note 9)

●

0.5

3.6

IVDD

Supply Current

Both ADCs at fS(MAX)

●

263

305

PDISS

Power Dissipation

Both ADCs at fS(MAX)

●

790

915

PSHDN

Shutdown Power (Each Channel)

SHDN = H, OE = H, No CLK

PNAP

Nap Mode Power (Each Channel)

SHDN = H, OE = L, No CLK

The

l denotes the speciﬁcations which apply over the full operating temperature

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

TIMING CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Sampling Frequency

(Note 9)

●

125

MHz

CLK Low Time

Duty Cycle Stabilizer Off (Note 7)

Duty Cycle Stabilizer On (Note 7)

●

3.8

500

CLK High Time

Duty Cycle Stabilizer Off (Note 7)

Duty Cycle Stabilizer On (Note 7)

●

3.8

500

tAP

Sample-and-Hold Aperture Delay

CLK to DATA Delay

CL = 5pF (Note 7)

●

1.4

2.7

5.4

CLK to CLKOUT Delay

CL = 5pF (Note 7)

●

1.4

2.7

5.4

DATA to CLKOUT Skew

(tD – tC) (Note 7)

●

–0.6

0.6

tMD

MUX to DATA Delay

CL = 5pF (Note 7)

●

1.4

2.7

5.4

Data Access Time After OE↓

CL = 5pF (Note 7)

●

4.3

BUS Relinquish Time

(Note 7)

●

3.3

8.5

Pipeline Latency

Cycles

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 ground with GND and OGND

wired together (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 = 3V, fSAMPLE = 125MHz, input range = 2VP-P with differential

drive, unless otherwise noted.

Note 5: Integral nonlinearity is deﬁned as the deviation of a code from a

straight line passing through the actual endpoints of the transfer curve.

The deviation is measured from the center of the quantization band.

Note 6: 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.

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

Note 8: VDD = 3V, fSAMPLE = 125MHz, input range = 1VP-P with differential

drive. The supply current and power dissipation are the sum total for both

channels with both channels active.

Note 9: Recommended operating conditions.

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