AD6643-200EBZ datasheet(5/36 Pages) AD

部件名	AD6643-200EBZ

功能描述	Dual IF Receiver 1.8 V supply voltages Internal ADC voltage reference

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制造商	AD [Analog Devices]

网页	http://www.analog.com

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AD6643

Rev. 0 | Page 5 of 36

ADC AC SPECIFICATIONS

AVDD = 1.8 V, DRVDD = 1.8 V, maximum sample rate, VIN = −1.0 dBFS differential input, 1.75 V p-p full-scale input range, default SPI,

unless otherwise noted.

Table 2.

Parameter1

Temperature

Min

Typ

Max

Unit

SIGNAL-TO-NOISE-RATIO (SNR)

NSR Disabled

fIN = 30 MHz

25°C

66.6

dBFS

fIN = 90 MHz

25°C

66.5

dBFS

Full

66.2

dBFS

fIN = 140 MHz

25°C

66.4

dBFS

fIN = 185 MHz

25°C

66.2

dBFS

fIN = 220 MHz

25°C

66.0

dBFS

NSR Enabled

22% BW Mode

fIN = 90 MHz

25°C

76.1

dBFS

fIN = 140 MHz

25°C

75.5

dBFS

fIN = 185 MHz

25°C

74.7

dBFS

fIN = 220 MHz

25°C

74.2

dBFS

33% BW Mode

fIN = 90 MHz

25°C

73.6

dBFS

fIN = 140 MHz

25°C

73.1

dBFS

fIN = 185 MHz

25°C

72.6

dBFS

fIN = 220 MHz

25°C

72.1

dBFS

SIGNAL-TO-NOISE-AND-DISTORTION (SINAD)

fIN = 30 MHz

25°C

65.6

dBFS

fIN = 90 MHz

25°C

65.5

dBFS

Full

65.1

dBFS

fIN = 140 MHz

25°C

65.3

dBFS

fIN = 185 MHz

25°C

65.1

dBFS

fIN = 220 MHz

25°C

64.9

dBFS

WORST SECOND OR THIRD HARMONIC

fIN = 30 MHz

25°C

−92

dBc

fIN = 90 MHz

25°C

−91

dBc

Full

−80

dBc

fIN = 140 MHz

25°C

−88

dBc

fIN = 185 MHz

25°C

−88

dBc

fIN = 220 MHz

25°C

−84

dBc

SPURIOUS-FREE DYNAMIC RANGE (SFDR)

fIN = 30 MHz

25°C

92

dBc

fIN = 90 MHz

25°C

91

dBc

Full

80

dBc

fIN = 140 MHz

25°C

88

dBc

fIN = 185 MHz

25°C

88

dBc

fIN = 220 MHz

25°C

84

dBc

WORST OTHER HARMONIC OR SPUR

fIN = 30 MHz

25°C

−94

dBc

fIN = 90 MHz

25°C

−94

dBc

Full

−80

dBc

fIN = 140 MHz

25°C

−95

dBc

fIN = 185 MHz

25°C

−94

dBc

fIN = 220 MHz

25°C

−93

dBc

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