4

LTC1450/LTC1450L

ELECTRICAL CHARACTERISTICS

LOAD CURRENT (mA)

4.4

4.8

5.0

5.4

5.8

0.01

1

10

100

1450/50L G01

4.0

0.1

5.2

4.6

4.2

5.6

2.8

3.2

3.4

3.8

4.2

2.4

3.6

3.0

2.6

4.0

LTC1450

LTC1450L

Minimum Supply Voltage

vs Load Current

TEMPERATURE (

°C)

–55

350

360

380

390

400

450

420

–15

25

45

125

1450/50L G02

370

430

440

410

–35

5

65

85 105

LOGIC INPUT VOLTAGE (V)

0

0.5 1.0 1.5 2.0

3.0

4.0

3.5

4.5

6

8

1450/50L G03

4

2

0

7

5

3

1

2.5

5.0

ALL LOGIC INPUTS

TIED TOGETHER

LTC1450

LTC1450L

LTC1450 Supply Current

vs Temperature

Supply Current

vs Logic Input Voltage

temperature range.

Note 1: Nonlinearity is defined from the first code that is greater than or

equal to the maximum offset specification to code 4095 (full-scale).

Note 2: Load is 5k

Ω in parallel with 100pF.

the part.

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Switching Characteristics (Note 5)

CS (MSB or LSB) Pulse Width

q

40

ns

WR Pulse Width

q

40

ns

CS to WR Setup

q

0ns

CS to WR Hold

q

0ns

Data Valid to WR Setup

q

40

15

ns

q

40

15

ns

10

ns

Data Valid to WR Hold

q

0– 10

ns

q

0– 10

ns

– 5

ns

LDAC Pulse Width

q

40

ns

CLR Pulse Width

q

40

ns