LTC2418IGN datasheet(6/48 Pages) LINER

6 / 48 page

LTC2414/LTC2418

241418fa

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

life of the device may be impaired.

Note 2: All voltage values are with respect to GND.

Note 3: VCC = 2.7V to 5.5V unless otherwise specified.

VREF = REF

+ – REF–, VREFCM = (REF+ + REF–)/2; VIN = IN+ – IN–,

VINCM = (IN+ + IN–)/2, IN+ and IN– are defined as the selected positive

and negative input respectively.

Note 4: FO pin tied to GND or to VCC or to external conversion clock

source with fEOSC = 153600Hz unless otherwise specified.

Note 5: Guaranteed by design, not subject to test.

Note 6: 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 7: FO = 0V (internal oscillator) or fEOSC = 153600Hz ±2%

(external oscillator).

Note 8: FO = VCC (internal oscillator) or fEOSC = 128000Hz ±2%

(external oscillator).

Note 9: The converter is in external SCK mode of operation such that

the SCK pin is used as digital input. The frequency of the clock signal

driving SCK during the data output is fESCK and is expressed in kHz.

Note 10: The converter is in internal SCK mode of operation such that

the SCK pin is used as digital output. In this mode of operation the

SCK pin has a total equivalent load capacitance CLOAD = 20pF.

Note 11: The external oscillator is connected to the FO pin. The external

oscillator frequency, fEOSC, is expressed in kHz.

Note 12: The converter uses the internal oscillator.

FO = 0V or FO = VCC.

Note 13: The output noise includes the contribution of the internal

calibration operations.

Note 14: Guaranteed by design and test correlation.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

↓ to SDO Low

●

200

↑ to SDO High Z

●

200

↓ to SCK ↓

(Note 10)

●

200

↓ to SCK ↑

(Note 9)

●

tKQMAX

SCK

↓ to SDO Valid

●

220

tKQMIN

SDO Hold After SCK

↓

(Note 5)

●

SCK Set-Up Before CS

↓

●

SCK Hold After CS

↓

●

SDI Setup Before SCK

↑

(Note 5)

●

100

SDI Hold After SCK

↑

(Note 5)

●

100

The

● denotes specifications which apply over the full operating temperature

range, otherwise specifications are at TA = 25°C. (Note 3)

TI I G CHARACTERISTICS

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