AD9851CGPCB datasheet(2/24 Pages) AD

Part #	AD9851CGPCB

Description	CMOS 180 MHz DDS/DAC Synthesizer

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Manufacturer	AD [Analog Devices]

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AD9851–SPECIFICATIONS (VS1=5V5%,RSET=3.9k,6REFCLKMultiplierDisabled,ExternalReference

Clock = 180 MHz, except as noted.)

Test

AD9851BRS

Parameter

Temp

Level

Min

Typ

Max

Unit

CLOCK INPUT CHARACTERISTICS

Frequency Range (6 REFCLK Multiplier Disabled)

5.0 V Supply

Full

IV

1

180

MHz

3.3 V Supply

Full

IV

1

125

MHz

2.7 V Supply

0°C to 85°C

IV

1

100

MHz

Frequency Range (6 REFCLK Multiplier Enabled)

5.0 V Supply

Full

IV

5

30

MHz

3.3 V Supply

Full

IV

5

20.83

MHz

2.7 V Supply

0°C to 85°C

IV

5

16.66

MHz

Duty Cycle

Full

IV

45

60

%

Duty Cycle (6 REFCLK Multiplier Enabled)

Full

IV

35

65

%

Input Resistance

25°C

V

1

M

Minimum Switching Thresholds2

Logic 1, 5.0 V Supply

25°C

IV

3.5

V

Logic 1, 3.3 V Supply

25°C

IV

2.3

V

Logic 0, 5.0 V Supply

25°C

IV

1.5

V

Logic 0, 3.3 V Supply

25°C

IV

1

V

DAC OUTPUT CHARACTERISTICS

Full-Scale Output Current

25°C

IV

5

10

20

mA

Gain Error

25°C

I

–10

+10

% FS

Output Offset

25°C

I

10

µA

Differential Nonlinearity

25°C

I

0.75

LSB

Integral Nonlinearity

25°C

I

1

LSB

Residual Phase Noise, 5.2 MHz, 1 kHz Offset

PLL On

25°C

V

–125

dBc/Hz

PLL Off

25°C

V

–132

dBc/Hz

Output Impedance

25°C

V

120

k

Voltage Compliance Range

25°C

I

–0.5

+1.5

V

Wideband Spurious-Free Dynamic Range

1.1 MHz Analog Out (DC to 72 MHz)

25°C

IV

60

64

dBc

20.1 MHz Analog Out (DC to 72 MHz)

25°C

IV

51

53

dBc

40.1 MHz Analog Out (DC to 72 MHz)

25°C

IV

51

55

dBc

50.1 MHz Analog Out (DC to 72 MHz)

25°C

IV

46

53

dBc

70.1 MHz Analog Out (DC to 72 MHz)

25°C

IV

42

43

dBc

Narrowband Spurious-Free Dynamic Range

1.1 MHz (±50 kHz)

25°C

V

85

dBc

1.1 MHz (±200 kHz)

25°C

V

80

dBc

40.1 MHz (±50 kHz)

25°C

V

85

dBc

40.1 MHz (±200 kHz)

25°C

V

80

dBc

70.1 MHz (±50 kHz)

25°C

V

85

dBc

70.1 MHz (±200 kHz)

25°C

V

73

dBc

COMPARATOR INPUT CHARACTERISTICS

Input Capacitance

25°C

V

3

pF

Input Resistance

25°C

IV

500

k

Input Bias Current

25°C

I

12

µA

Input Voltage Range

25°C

IV

0

5

V

COMPARATOR OUTPUT CHARACTERISTICS

Logic 1 Voltage 5 V Supply

25°C

VI

4.8

V

Logic 1 Voltage 3.3 V Supply

25°C

VI

3.1

V

Logic 1 Voltage 2.7 V Supply

25°C

VI

2.3

V

Logic 0 Voltage

25°C

VI

+0.4

V

Continuous Output Current

25°C

IV

20

mA

Hysteresis

25°C

IV

10

mV

Propagation Delay

25°C

IV

7

ns

Toggle Frequency (1 V p-p Input Sine Wave)

25°C

IV

200

MHz

Rise/Fall Time, 15 pF Output Load

25°C

IV

7

ns

Output Jitter (p-p)3

25°C

IV

80

ps (p-p)

CLOCK OUTPUT CHARACTERISTICS

Output Jitter (Clock Generator Configuration,

40 MHz 1 V p-p Input Sine Wave)

25°C

V

250

ps (p-p)

Clock Output Duty Cycle

Full

IV

50 ± 10

%

REV. D

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