AD9432_17 datasheet(5/17 Pages) AD

Part #	AD9432

Description	12-Bit, 80 MSPS/105 MSPS ADC

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AD9432

Rev. F | Page 4 of 16

Parameter

Temp

Test

80 MSPS

105 MSPS

Level

Min

Typ

Max

Min

Typ

Max

Unit

POWER SUPPLY

Power Dissipation3

Full

VI

790

1000

850

1100

mW

IVCC

Full

VI

158

200

170

220

mA

IVDD

Full

VI

9.5

12.2

12.5

16

mA

Power Supply Rejection Ratio

(PSRR)

25°C

I

−5

+0.5

+5

−5

+0.5

+5

mV/V

DYNAMIC PERFORMANCE4

Signal-to-Noise Ratio (SNR)

(Without Harmonics)

fIN = 10 MHz

25°C

I

65.5

67.5

65.5

67.5

dB

fIN = 40 MHz

25°C

I

65

67.2

dB

fIN = 49 MHz

25°C

I

67.0

64

67.0

dB

fIN = 70 MHz

25°C

V

66.1

dB

Signal-to-Noise and Distortion

(SINAD) Ratio (with Harmonics)

fIN = 10 MHz

25°C

I

65

67.2

65

67.2

dB

fIN = 40 MHz

25°C

I

64.5

66.9

dB

fIN = 49 MHz

25°C

I

66.7

63

66.7

dB

fIN = 70 MHz

25°C

V

65.8

dB

Effective Number of Bits (ENOB)

fIN = 10 MHz

25°C

V

11.0

Bits

fIN = 40 MHz

25°C

V

10.9

Bits

fIN = 49 MHz

25°C

V

10.9

Bits

fIN = 70 MHz

25°C

V

10.7

Bits

Second-Order and Third-Order

Harmonic Distortion

fIN = 10 MHz

25°C

I

−75

−85

−75

−85

dBc

fIN = 40 MHz

25°C

I

−73

−85

−83

dBc

fIN = 49 MHz

25°C

I

−83

−72

−80

dBc

fIN = 70 MHz

25°C

V

−80

−78

dBc

Worst Other Harmonic or Spur

(Excluding Second-Order and

Third-Order Harmonics)

fIN = 10 MHz

25°C

I

−80

−90

−80

−90

dBc

fIN = 40 MHz

25°C

I

−80

−90

dBc

fIN = 49 MHz

25°C

I

−90

−80

−90

dBc

fIN = 70 MHz

25°C

V

−90

dBc

Two-Tone Intermodulation

Distortion (IMD)

fIN1 = 29.3 MHz; fIN2 = 30.3 MHz

25°C

V

−75

dBc

fIN1 = 70.3 MHz; fIN2 = 71.3 MHz

25°C

V

−66

dBc

1 Gain error and gain temperature coefficients are based on the ADC only (with a fixed 2.5 V external reference and a 2 V p-p differential analog input).

2 tV and tPD are measured from the transition points of the ENCODE input to the 50%/50% levels of the digital output swing. The digital output load during testing is not

to exceed an ac load of 10 pF or a dc current of ±40 μA. Rise and fall times are measured from 10% to 90%.

3 Power dissipation measured with encode at rated speed and a dc analog input (outputs static, IVDD = 0).

4 SNR/harmonics based on an analog input voltage of –0.5 dBFS referenced to a 2 V full-scale input range.

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