AD9834

–2–

REV PrM

PRELIMINARY TECHNICAL DATA

Parameter

Min

Typ

Max

Units

Test Conditions/Comments

SIGNAL DAC SPECIFICATIONS

Resolution

10

Bits

50

MSPS

2.8

mA

Output Compliance

2

0.8

V

DC Accuracy:

Integral Nonlinearity

±1

LSB

Differential Nonlinearity

±0.5

LSB

DDS SPECIFICATIONS

Dynamic Specifications:

Signal to Noise Ratio

50

dB

Total Harmonic Distortion

-53

dBc

Spurious Free Dynamic Range (SFDR):

Wideband (0 to Nyquist)

50

dBc

NarrowBand (± 200 kHz)

72

dBc

Clock Feedthrough

–55

dBc

Wake Up Time

1

ms

COMPARATOR

Input Voltage Range

1

V p-p

ac-coupled internally

Input Capacitance

10

pF

Input HighPass Cutoff Frequency

4

MHz

Input DC Resistance

1

M

Ω

Input DC Current

10

µA

OUTPUT BUFFER

Output Rise/Fall Time

20

ns

Using a 15 pF Load

Output Jitter

100

ps rms

When DAC data MSB is output

VOLTAGE REFERENCE

Internal Reference

1.116

1.2

1.284

V

1.2 V ± 7%

REFOUT Input Impedance

3

1K

Ω

Reference TC

100

ppm/°C

LOGIC INPUTS

V

+3.6 V to +5.5 V Power Supply

V

+2.7 V to +3.6 V Power Supply

2

V

+2.3 V to + 2.7 V Power Supply

0.9

V

+3.6 V to +5.5 V Power Supply

0.5

V

+2.3 V to + 3.6 V Power Supply

1

µA

10

pF

POWER SUPPLIES

AVDD

2.3

5.5

V

DVDD

2.3

5.5

V

4

5mA

4

0.5 + 0.04/MHz

mA

4

7

10

mA

3 V Power Supply

10

15

mA

5 V Power Supply

Low Power Sleep Mode

4

0.25

mA

DAC and Internal Clock Powered Down

NOTES

Specifications subject to change without notice. There is 95% test coverage of the digital circuitry.

Ω;

Ω;

Ω;

Ω;

Ω;

Ω

Ω

Ω

Ω

Ω for IOUT and IOUTB unless otherwise noted)