LTC2255/LTC2254

2

22554fa

ABSOLUTE

AXI U

RATI GS

PACKAGE/ORDER I FOR ATIO

Digital Output Ground Voltage (OGND) ....... –0.3V to 1V

Power Dissipation ............................................ 1500mW

Operating Temperature Range

LTC2255C, LTC2254C ............................. 0

°C to 70°C

LTC2255I, LTC2254I ...........................–40

°C to 85°C

Storage Temperature Range ..................–65

°C to 125°C

ORDER PART

NUMBER

QFN PART*

MARKING

EXPOSED PAD (PIN 33) IS GND

MUST BE SOLDERED TO PCB

2255

2254

LTC2255CUH

LTC2255IUH

LTC2254CUH

LTC2254IUH

Consult LTC Marketing for parts specified with wider operating temperature ranges.

*The temperature grade is identified by a label on the shipping container.

32 31 30 29 28 27 26 25

9

10 11 12

TOP VIEW

UH PACKAGE

32-LEAD (5mm

× 5mm) PLASTIC QFN

13 14 15 16

17

18

19

20

21

22

23

24

8

7

6

5

4

3

2

1

REFH

REFH

REFL

REFL

GND

D10

D9

D8

OGND

D7

D6

D5

33

The

LTC2255

LTC2254

PARAMETER

CONDITIONS

MIN

TYP

MAX

MIN

TYP

MAX

UNITS

Resolution (No Missing Codes)

●

14

14

Bits

Integral Linearity Error

Differential Analog Input (Note 5)

●

–5

±1

5

–5.5

±1

5.5

LSB

Differential Linearity Error

Differential Analog Input

●

–1

±0.5

1

–1

±0.5

1

LSB

Offset Error

(Note 6)

●

–12

±212

–12

±212

mV

Gain Error

External Reference

●

–2.5

±0.5

2.5

–2.5

±0.5

2.5

%FS

Offset Drift

±10

±10

µV/°C

Full-Scale Drift

Internal Reference

±30

±30

ppm/

°C

External Reference

±5

±5

ppm/

°C

Transition Noise

SENSE = 1V

1.3

1.3

CO VERTER CHARACTERISTICS

Order Options Tape and Reel: Add #TR

Lead Free: Add #PBF

Lead Free Tape and Reel: Add #TRPBF

Lead Free Part Marking: http://www.linear.com/leadfree/