LTC6652 datasheet(12/50 Pages) LINER

12 / 50 page

LTC2373-18

237318f

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

Typical perForMance characTerisTics T

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

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

SNR, SINAD vs Input Level,

fIN = 1kHz

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)

OUTPUT CODE

–2.0

1.5

1.0

–1.5

–1.0

–0.5

0.5

2.0

237318 G37

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 G38

65536

131072

196608

262144

CODE

σ = 1.55

60000

40000

20000

80000

237318 G39

–3

–1

–7

–5

CODE

σ = 1.65

60000

40000

20000

80000

237318 G40

131058 131061 131063 131066

131055

131069

FREQUENCY (kHz)

–20

237318 G41

–180

–100

–140

–160

–120

–80

–60

–40

100

200

300

400

500

SNR = 95.6dB

THD = –109.8dB

SINAD = 95.5dB

SFDR = 111.6dB

FREQUENCY (kHz)

–20

237318 G42

–180

–100

–140

–160

–120

–80

–60

–40

100

200

300

400

500

SNR = 97.2dB

THD = –109.2dB

SINAD = 96.9dB

SFDR = 112.2dB

REFBUF VOLTAGE (V)

2.5

3.5

237318 G43

4.5

SNR

SINAD

REFBUF VOLTAGE (V)

2.5

–125

–130

–115

–110

3.5

237318 G44

–120

4.5

–105

3RD

2ND

THD

INPUT LEVEL (dB)

–40

95.0

94.0

94.5

–30

–20

–10

237318 G45

95.5

96.0

SNR

SINAD

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