AD9640ABCPZ-150 datasheet(10/54 Pages) AD

Part #	AD9640ABCPZ-150

Description	1.8V Dual Analog-to-Digital Converter

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AD9640

Rev. B | Page 8 of 52

ADC AC SPECIFICATIONS—AD9640ABCPZ-125, AD9640BCPZ-125, AD9640ABCPZ-150, AND AD9640BCPZ 150

AVDD = 1.8 V, DVDD = 1.8 V, DRVDD = 3.3 V, maximum sample rate, VIN = −1.0 dBFS differential input, 1.0 V internal reference,

DCS enabled, fast detect outputs disabled, and signal monitor disabled, unless otherwise noted.

Table 4.

Parameter1

Temperature

AD9640ABCPZ-125

AD9640BCPZ-125

AD9640ABCPZ-150/

AD9640BCPZ-150

Unit

Min

Typ

Max

Min

Typ

Max

SIGNAL-TO-NOISE RATIO (SNR)

fIN = 2.3 MHz

25°C

72.1

71.9

dB

fIN = 70 MHz

25°C

71.8

71.6

dB

Full

70.2

69.5

dB

fIN = 140 MHz

25°C

71.4

70.9

dB

fIN = 200 MHz

25°C

70.8

70.0

dB

SIGNAL-TO-NOISE AND DISTORTION (SINAD)

fIN = 2.3 MHz

25°C

71.8

71.6

dB

fIN = 70 MHz

25°C

71.4

71.0

dB

Full

69.5

67.5

dB

fIN = 140 MHz

25°C

71.0

70.5

dB

fIN = 200 MHz

25°C

70.3

69.9

dB

EFFECTIVE NUMBER OF BITS (ENOB)

fIN = 2.3 MHz

25°C

11.8

Bits

fIN = 70 MHz

25°C

11.7

11.8

Bits

fIN = 140 MHz

25°C

11.7

11.6

Bits

fIN = 200 MHz

25°C

11.6

11.5

Bits

WORST SECOND OR THIRD HARMONIC

fIN = 2.3 MHz

25°C

−86.5

dBc

fIN = 70 MHz

25°C

−85

−84

dBc

Full

−74

−73

dBc

fIN = 140 MHz

25°C

−84

−83.5

dBc

fIN = 200 MHz

25°C

−83

−77

dBc

SPURIOUS-FREE DYNAMIC RANGE (SFDR)

fIN = 2.3 MHz

25°C

86.5

dBc

fIN = 70 MHz

25°C

85

84

dBc

Full

74

73

dBc

fIN = 140 MHz

25°C

84

83.5

dBc

fIN = 200 MHz

25°C

83

77

dBc

WORST OTHER HARMONIC OR SPUR

fIN = 2.3 MHz

25°C

−92

dBc

fIN = 70 MHz

25°C

−89

−90

dBc

Full

−80

dBc

fIN = 140 MHz

25°C

−89

−90

dBc

fIN = 200 MHz

25°C

−89

−90

dBc

TWO TONE SFDR

fIN = 29.1 MHz, 32.1 MHz (−7 dBFS)

25°C

85

dBc

fIN = 169.1 MHz, 172.1 MHz (−7 dBFS)

25°C

82

dBc

CROSSTALK2

Full

−95

dB

ANALOG INPUT BANDWIDTH

25°C

650

MHz

1 See the AN-835 Application Note, Understanding High Speed ADC Testing and Evaluation, for a complete set of definitions.

2 Crosstalk is measured at 100 MHz with −1 dBFS on one channel and no input on the alternate channel.

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