LTC2248/LTC2247/LTC2246

2

224876fa

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

LTC2248C, LTC2247C, LTC2246C ........... 0

°C to 70°C

LTC2248I, LTC2247I, LTC2246I ..........–40

°C to 85°C

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

°C to 125°C

The

LTC2248

LTC2247

LTC2246

PARAMETER

CONDITIONS

MIN

TYP

MAX

MIN

TYP

MAX

MIN

TYP

MAX

UNITS

Resolution

●

14

14

14

Bits

(No Missing Codes)

Integral

Differential Analog Input

●

–4

±14

–4

±14

–4

±14

LSB

Linearity Error

(Note 5)

Differential

Differential Analog Input

●

–1

±0.5

1

–1

±0.5

1

–1

±0.5

1

LSB

Linearity Error

Offset Error

(Note 6)

●

–12

±212

–12

±212

–12

±212

mV

Gain Error

External Reference

●

–2.5

±0.5

2.5

–2.5

±0.5

2.5

–2.5

±0.5

2.5

%FS

Offset Drift

±10

±10

±10

µV/°C

Full-Scale Drift

Internal Reference

±30

±30

±30

ppm/

°C

External Reference

±5

±5

±5

ppm/

°C

Transition Noise

SENSE = 1V

1

1

1

CO VERTER CHARACTERISTICS

EXPOSED PAD IS GND (PIN 33)

MUST BE SOLDERED TO PCB

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

ORDER PART NUMBER

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

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

LTC2248CUH

LTC2248IUH

LTC2247CUH

LTC2247IUH

LTC2246CUH

LTC2246IUH

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/

QFN PART MARKING*

2248

2248

2247

2247

2246

2246