LTC2272 datasheet(3/44 Pages) LINER

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LTC2273/LTC2272

22732f

ANALOG INPUT The l denotes denotes the speciﬁcations which apply over the full operating temperature range,

otherwise speciﬁcations are at TA = 25°C. (Note 4)

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VIN

Analog Input Range (AIN+ – AIN–)

3.135V ≤ VDD ≤ 3.465V

1.5 or 2.25

VP-P

VIN, CM

Analog Input Common Mode

Differential Input (Note 7)

1.25

1.5

IIN

Analog Input Leakage Current

0V ≤ AIN+, AIN– ≤ VDD (Note 10)

–1

μA

ISENSE

SENSE Input Leakage Current

0V ≤ SENSE ≤ VDD (Note 11)

–3

μA

CIN

Analog Input Capacitance

Sample Mode ENC+ < ENC–

Hold Mode ENC+ > ENC–

6.7

1.8

tAP

Sample-and-Hold

Acquisition Delay Time

1ns

tJITTER

Sample-and-Hold

Acquisition Delay Time Jitter

fsRMS

CMRR

Analog Input

Common Mode Rejection Ratio

1V < (AIN+ = AIN–) <1.5V

BW-3dB

Full Power Bandwidth

RS ≤ 25Ω

700

MHz

DYNAMIC ACCURACY The l denotes the speciﬁcations which apply over the full operating temperature range,

otherwise speciﬁcations are at TA = 25°C. AIN = –1dBFS. (Note 4)

SYMBOL PARAMETER

CONDITIONS

LTC2273

LTC2272

UNITS

MIN

TYP

MAX

MIN

TYP

MAX

SNR

Signal-to-Noise Ratio

5MHz Input (2.25V Range, PGA = 0)

5MHz Input (1.5V Range, PGA = 1)

77.6

75.4

77.6

75.4

dBFS

15MHz Input (2.25V Range, PGA = 0), TA = 25°C

15MHz Input (2.25V Range, PGA = 0)

15MHz Input (1.5V Range, PGA = 1)

76.5

76.2

77.5

77.2

75.3

76.5

76.2

77.5

77.2

75.3

dBFS

70MHz Input (2.25V Range, PGA = 0)

70MHz Input (1.5V Range, PGA = 1), TA = 25°C

70MHz Input (1.5V Range, PGA = 1)

74.5

74.2

77.2

75.1

74.8

74.5

74.2

77.2

75.1

74.8

dBFS

140MHz Input (2.25V Range, PGA = 0)

140MHz Input (1.5V Range, PGA = 1)

76.3

74.5

76.3

74.5

dBFS

170MHz Input (2.25V Range, PGA = 0)

170MHz Input (1.5V Range, PGA = 1)

75.9

74.3

75.9

74.3

dBFS

SFDR

Spurious Free Dynamic

Range 2nd or 3rd Harmonic

5MHz Input (2.25V Range, PGA = 0)

5MHz Input (1.5V Range, PGA = 1)

100

dBc

15MHz Input (2.25V Range, PGA = 0), TA = 25°C

15MHz Input (2.25V Range, PGA = 0)

15MHz Input (1.5V Range, PGA = 1)

100

dBc

70MHz Input (2.25V Range, PGA = 0)

70MHz Input (1.5V Range, PGA = 1), TA = 25°C

70MHz Input (1.5V Range, PGA = 1)

dBc

140MHz Input (2.25V Range, PGA = 0)

140MHz Input (1.5V Range, PGA = 1)

dBc

170MHz Input (2.25V Range, PGA = 0)

170MHz Input (1.5V Range, PGA = 1)

dBc

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