LTC1448CS8 datasheet(3/12 Pages) LINER

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LTC1448

VCC = 2.7V to 5.5V, VOUT A and VOUT B unloaded, REF ≤ VCC, TA = TMIN to TMAX, unless otherwise noted.

ELECTRICAL CHARACTERISTICS

Note 4: Digital inputs at 0V or VCC.

Note 5: VOUT can only swing from (GND + VOS) to (VCC – VOS) when

output is unloaded.

Note 6. Guaranteed by design, not subject to test.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

AC Performance

Voltage Output Slew Rate

0.5

1.0

V/µs

Voltage Output Settling Time

(Notes 2, 3) to ± 0.5LSB

µs

Digital Feedthrough

0.3

nV • s

Reference Input

RIN

REF Input Resistance

7.5

12.5

Ω

REF

REF Input Range

(Notes 5, 6)

0VCC

Digital I/O

VIH

Digital Input High Voltage

VCC = 5V

2.4

VCC = 3V

2.0

VIL

Digital Input Low Voltage

VCC = 5V

0.8

VCC = 3V

0.6

ILEAK

Digital Input Leakage

VIN = GND to VCC

±10

µA

CIN

Digital Input Capacitance

(Note 6)

Switching (VCC = 4.5V to 5.5V)

DIN Valid to CLK Setup

DIN Valid to CLK Hold

0ns

CLK High Time

(Note 6)

CLK Low Time

(Note 6)

CS/LD Pulse Width

(Note 6)

LSB CLK to CS/LD

(Note 6)

CS/LD Low to CLK

(Note 6)

CLK Low to CS/LD Low

(Note 6)

Switching (VCC = 2.7V to 5.5V)

DIN Valid to CLK Setup

DIN Valid to CLK Hold

0ns

CLK High Time

(Note 6)

CLK Low Time

(Note 6)

CS/LD Pulse Width

(Note 6)

LSB CLK to CS/LD

(Note 6)

CS/LD Low to CLK

(Note 6)

CLK Low to CS/LD Low

(Note 6)

The q denotes specifications which apply over the full operating

temperature range.

Note 1: Nonlinearity is defined from code 20 to code 4095 (full scale).

See Applications Information.

Note 2: Load is 5k in parallel with 100pF.

Note 3: DAC switched between all 1s and the code corresponding to VOS

for the part.

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