AD6657ABBCZ datasheet(6/37 Pages) AD

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Data Sheet

AD6657A

AC SPECIFICATIONS

AVDD = 1.8 V, DRVDD = 1.8 V, fS = 185 MSPS, 1.75 V p-p differential input, VIN = −1.0 dBFS differential input, and default SPI, unless

otherwise noted.

Table 2.

Parameter1

Temperature

Min

Typ

Max

Unit

SIGNAL-TO-NOISE-RATIO (SNR)—NSR DISABLED

fIN = 10 MHz

25°C

66.6

dBFS

fIN = 50 MHz

25°C

66.5

dBFS

fIN = 70 MHz

25°C

66.5

dBFS

fIN = 170 MHz

25°C

66.3

dBFS

Full

65.6

dBFS

fIN = 250 MHz

25°C

65.9

dBFS

SIGNAL-TO-NOISE-RATIO (SNR)—NSR ENABLED

22% BW Mode

fIN = 10 MHz

25°C

76.0

dBFS

fIN = 50 MHz

25°C

75.7

dBFS

fIN = 70 MHz

25°C

75.7

dBFS

fIN = 170 MHz

25°C

74.3

dBFS

Full

72.9

dBFS

fIN = 250 MHz

25°C

72.8

dBFS

33% BW Mode

fIN = 10 MHz

25°C

73.6

dBFS

fIN = 50 MHz

25°C

73.6

dBFS

fIN = 70 MHz

25°C

73.3

dBFS

fIN = 170 MHz

25°C

72.5

dBFS

Full

71.3

dBFS

fIN = 230 MHz

25°C

71.2

dBFS

36% BW Mode

fIN = 10 MHz

25°C

72.8

dBFS

fIN = 50 MHz

25°C

72.6

dBFS

fIN = 70 MHz

25°C

72.6

dBFS

fIN = 170 MHz

25°C

71.8

dBFS

Full

70.7

dBFS

fIN = 250 MHz

25°C

70.8

dBFS

SIGNAL-TO-NOISE-AND DISTORTION (SINAD)

fIN = 10 MHz

25°C

65.5

dBFS

fIN = 50 MHz

25°C

65.5

dBFS

fIN = 70 MHz

25°C

65.5

dBFS

fIN = 170 MHz

25°C

65.3

dBFS

Full

64.6

dBFS

fIN = 250 MHz

25°C

64.8

dBFS

EFFECTIVE NUMBER OF BITS (ENOB)

fIN = 10 MHz

25°C

10.6

Bits

fIN = 50 MHz

25°C

10.6

Bits

fIN = 70 MHz

25°C

10.6

Bits

fIN = 170 MHz

25°C

10.6

Bits

fIN = 250 MHz

25°C

10.5

Bits

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