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LTC1412

TI I G CHARACTERISTICS (Note 5)

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

fSAMPLE(MAX)

Maximum Sampling Frequency

MHz

tTHROUGHPUT

Throughput Time (Acquisition + Conversion)

333

tCONV

Conversion Time

240

283

tACQ

Acquisition Time

↓ to CONVST↓ Setup Time

(Notes 9, 10)

5ns

CONVST Low Time

(Note 10)

CONVST to BUSY Delay

CL = 25pF

Data Ready Before BUSY

↑

–20

–25

Delay Between Conversions

(Note 10)

Data Access Time After CS

↓

CL = 25pF

Bus Relinquish Time

830

LTC1412C

LTC1412I

CONVST High Time

Aperture Delay of Sample-and-Hold

– 1

The q denotes specifications which apply over the full operating

temperature range; all other limits and typicals TA = 25°C.

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 2: All voltage values are with respect to ground with DGND and

AGND wired together (unless otherwise noted).

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

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

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

Note 4: When these pin voltages are taken below VSS they will be clamped

by internal diodes. This product can handle input currents greater than

100mA below VSS without latchup. These pins are not clamped to VDD.

Note 5: VDD = 5V, fSAMPLE = 3MHz and tr = tf = 5ns unless otherwise

specified.

Note 6: Linearity, offset and full-scale specifications apply for a single-

ended AIN input with AIN– grounded.

Note 7: 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 8: Bipolar offset is the offset voltage measured from – 0.5LSB

when the output code flickers between 0000 0000 0000 and

1111 1111 1111.

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

Note 10: Recommended operating conditions.

TI I G DIAGRA

DATA (N – 1)

DB11 TO DB0

CONVST

BUSY

1412 TD

tCONV

DATA N

DB11 TO DB0

DATA (N + 1)

DB11 TO DB0

DATA

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