LTC2470/LTC2472

4

24702f

The

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Conversion Time

SPD = 0

l

3.2

4

4.8

ms

Conversion Time

SPD = 1

l

0.8

1

1.2

ms

SCK Frequency Range

l

2

MHz

SCK Low Period

(Note 7)

l

250

ns

SCK High Period

(Note 7)

l

250

ns

CS Falling Edge to SDO Low Z

(Note 7)

l

0

100

ns

CS Rising Edge to SDO High Z

(Note 7)

l

0

100

ns

CS Falling Edge to SCK Falling Edge

(Note 7)

l

100

ns

SDI Setup Before SCK↑

(Notes 3, 7)

l

100

ns

SDI Hold After SCK↑

(Notes 3, 7)

l

100

ns

SCK Falling Edge to SDO Valid

(Note 7)

l

0

100

ns

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.

unless otherwise specified.

Note 3. Guaranteed by design, not subject to test.

Note 4. Integral nonlinearity is defined as the deviation of a code from a

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

Note 5:

Note 7: See Figure 5.

Note 8: Input sampling current is the average input current drawn from

the input sampling network while the LTC2470/LTC2472 is actively

sampling the input.

Note 9: Temperature coefficient is calculated by dividing the maximum

change in output voltage by the specified temperature range.

TIMING CHARACTERISTICS

The

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

High Level Input Voltage

V

Low Level Input Voltage

l

0.3

V

Digital Input Current

l

–10

10

μA

Digital Input Capacitance

10

pF

High Level Output Voltage

V

Low Level Output Voltage

l

0.4

V

Hi-Z Output Leakage Current

l

–10

10

μA

DIGITAL INPUTS AND DIGITAL OUTPUTS