LTC6652 datasheet(10/50 Pages) LINER

10 / 50 page

LTC2373-18

237318f

For more information www.linear.com/LTC2373-18

Typical perForMance characTerisTics

Differential Nonlinearity vs

Output Code

DC Histogram (Near Full-Scale)

32k Point FFT fSMPL = 1Msps,

fIN = 1kHz

32k Point FFT fSMPL = 1Msps,

fIN = 1kHz, REFBUF = 5V

SNR, SINAD vs REFBUF, fIN = 1kHz

THD, Harmonics vs REFBUF,

fIN = 1kHz

Integral Nonlinearity vs Output

Code

DC Histogram (Zero-Scale)

TA = 25°C, VDD = 5V, OVDD = 2.5V, REFIN = 2.048V,

Pseudo-Differential Unipolar Range, fSMPL = 1Msps, unless otherwise noted.

SNR, SINAD vs Input Level,

fIN = 1kHz

OUTPUT CODE

–2.0

1.5

1.0

–1.5

–1.0

–0.5

0.5

2.0

237318 G19

65536

131072

196608

262144

OUTPUT CODE

–1.0

0.8

0.6

–0.8

–0.6

–0.4

–0.2

0.4

0.2

1.0

237318 G20

65536

131072

196608

262144

CODE

σ = 1.54

60000

40000

20000

80000

237318 G21

10 12 14 16 18

CODE

σ = 1.89

60000

40000

20000

237318 G22

262128

262134

262122

262140

FREQUENCY (kHz)

–20

237318 G23

–180

–100

–140

–160

–120

–80

–60

–40

100

200

300

400

500

SNR = 95.1dB

THD = –110dB

SINAD = 94.9dB

SFDR = 113.3dB

FREQUENCY (kHz)

–20

237318 G24

–180

–100

–140

–160

–120

–80

–60

–40

100

200

300

400

500

SNR = 96.9dB

THD = –111dB

SINAD = 96.7dB

SFDR = 112.8dB

REFBUF VOLTAGE (V)

2.5

3.5

237318 G25

4.5

SNR

SINAD

REFBUF VOLTAGE (V)

2.5

–125

–130

–115

–110

3.5

237318 G26

–120

4.5

–105

3RD

2ND

THD

INPUT LEVEL (dB)

–40

94.0

–30

237318 G27

95.5

95.0

94.5

–20

–10

SINAD

96.0

SNR

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