LTC1821-1ACGW datasheet(6/16 Pages) LINER

Part #	LTC1821-1ACGW

Description	16-Bit, Ultra Precise, Fast Settling VOUT DAC

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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6

LTC1821

TYPICAL PERFOR A CE CHARACTERISTICS

SUPPLY VOLTAGE (V)

–1.0

– 0.8

– 0.4

– 0.2

0

1.0

0.4

2

4

5

1821 G16

– 0.6

0.6

0.8

0.2

3

6

7

VREF = 10V

VREF = 2.5V

VREF = 10V

VREF = 2.5V

SUPPLY VOLTAGE (V)

–1.0

– 0.8

– 0.4

– 0.2

0

1.0

0.4

2

4

5

1821 G17

– 0.6

0.6

0.8

0.2

3

6

7

VREF = 10V

VREF = 2.5V

Differential Nonlinearity vs VCC

Supply Voltage in Unipolar Mode

Differential Nonlinearity vs VCC

Supply Voltage in Bipolar Mode

Unipolar Multiplying Mode Frequency

Response vs Digital Code

Bipolar Multiplying Mode Frequency

Response vs Digital Code

Bipolar Multiplying Mode Frequency

Response vs Digital Code

FREQUENCY (Hz)

– 100

– 120

–80

–40

0

100

10k

100k

10M

1821 G18

1k

1M

–20

–60

D15 ON

D14 ON

D13 ON

D12 ON

ALL BITS ON

D9 ON

D1 ON

D0 ON

D11 ON

D10 ON

D8 ON

D7 ON

D6 ON

D5 ON

D4 ON

D3 ON

D2 ON

ALL BITS OFF

30pF

8 9 10 11

14

13

116 17

12

LTC1821

VOUT

VREF

FREQUENCY (Hz)

– 100

–80

–40

0

10

*DAC ZERO VOLTAGE OUTPUT LIMITED BY BIPOLAR

ZERO ERROR TO – 96dB TYPICAL (–78dB MAX, A GRADE)

1k

10k

10M

1M

1821 G19

100

100k

–20

–60

D15 AND D14 ON

D15 AND D13 ON

D15 AND D12 ON

D15 AND D11 ON

D15 AND D10 ON

D15 AND D9 ON

D15 AND D8 ON

D15 AND D7 ON

D15 AND D6 ON

D15 AND D5 ON

D15 AND D4 ON

D15 AND D3 ON

D15 AND D2 ON

ALL BITS ON

D15 ON

*

D15 AND D0 ON

D15 AND D1 ON

CODES FROM

MIDSCALE

TO FULL SCALE

15pF

12pF

–

+

12pF

VREF

VOUT

8

9

10

11

14

13

17

16

1

12

LT1468

LTC1821

2

3

6

FREQUENCY (Hz)

– 100

–80

–40

0

10

1k

10k

10M

1M

1821 G20

100

100k

–20

–60

D14 ON

D14 AND D13 ON

D14 TO D12 ON

D14 TO D11 ON

D14 TO D10 ON

D14 TO D9 ON

D14 TO D8 ON

D14 TO D7 ON

D14 TO D6 ON

D14 TO D5 ON

D14 TO D4 ON

D14 TO D3 ON

D14 TO D2 ON

D14 TO D1 ON

ALL BITS OFF

*DAC ZERO VOLTAGE OUTPUT LIMITED BY BIPOLAR

ZERO ERROR TO – 96dB TYPICAL (–78dB MAX, A GRADE)

D14 TO D0 ON

D15 ON

*

CODES FROM

MIDSCALE

TO ZERO SCALE

15pF

12pF

–

+

12pF

VREF

VOUT

8

9

10

11

14

13

17

16

1

12

LT1468

LTC1821

2

3

6

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LTC1821-1ACGW Datasheet(PDF) 6 Page - Linear Technology

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