AD9838 View Datasheet(PDF) - Analog Devices

Part Name

Description

Manufacturer

AD9838

Mixed-Signal Front-End (MxFE) Processor for Broadband Communications

Analog Devices 

AD9838

SPECIFICATIONS

AVDD = DVDD = 2.3 V to 5.5 V, AGND = DGND = 0 V, TA = TMIN to TMAX, RSET = 6.8 kΩ, RLOAD = 200 Ω for IOUT and IOUTB, unless

otherwise noted.

Table 1.

Parameter1

Min

Typ

Max

Unit

Test Conditions/Comments

SIGNAL DAC SPECIFICATIONS

Resolution

10

Bits

Update Rate

A Grade

5

MSPS

B Grade

16

MSPS

IOUT Full Scale2

3.0

mA

VOUT Maximum

0.6

V

VOUT Minimum

Output Compliance3

30

mV

0.8

V

DC Accuracy

Integral Nonlinearity (INL)

±1

LSB

Differential Nonlinearity (DNL)

±0.5

LSB

DDS SPECIFICATIONS

Dynamic Specifications

Signal-to-Noise Ratio (SNR)

A Grade

−63

dB

fMCLK = 5 MHz, fOUT = fMCLK/4096

B Grade

−64

dB

fMCLK = 16 MHz, fOUT = fMCLK/4096

Total Harmonic Distortion (THD)

A Grade

−64

dBc

fMCLK = 5 MHz, fOUT = fMCLK/4096

B Grade

−64

dBc

fMCLK = 16 MHz, fOUT = fMCLK/4096

Spurious-Free Dynamic Range (SFDR)

Wideband (0 to Nyquist)

A Grade

−68

dBc

fMCLK = 5 MHz, fOUT = fMCLK/50

B Grade

−66

dBc

fMCLK = 16 MHz, fOUT = fMCLK/50

Narrow-Band (±200 kHz)

A Grade

−97

dBc

fMCLK = 5 MHz, fOUT = fMCLK/50

B Grade

−92

dBc

fMCLK = 16 MHz, fOUT = fMCLK/50

Clock Feedthrough

A Grade

−68

dBc

fMCLK = 5 MHz, fOUT = reset

B Grade

−65

dBc

fMCLK = 16 MHz, fOUT = reset

Wake-Up Time

1

ms

COMPARATOR

Input Voltage Range

1

V p-p

AC-coupled internally

Input Capacitance

10

pF

Input High-Pass Cutoff Frequency

3

MHz

Input DC Resistance

5

MΩ

Input Leakage Current

10

μA

OUTPUT BUFFER

Output Rise/Fall Time

12

ns

Using a 15 pF load

Output Jitter

120

ps rms

3 MHz sine wave 0.6 V p-p

VOLTAGE REFERENCE

Internal Reference

1.11

1.18

1.24

V

REFOUT Output Impedance4

1

kΩ

Reference TC

100

ppm/°C

FSADJUST Voltage

1.14

V

Rev. A | Page 3 of 32

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