AD9049 datasheet(3/12 Pages) AD

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Test

AD9049BR/BRS

Parameter

Temp

Level

Min

Typ

Max

Units

ENCODE INPUT

Logic “1” Voltage

Full

2.0

Logic “0” Voltage

Full

0.8

Logic “1” Current

Full

µA

Logic “0” Current

Full

µA

Input Capacitance

+25

°C

Encode Pulse Width High (tEH)

+25

°C

166

Encode Pulse Width Low (tEL)

+25

°C

166

DIGITAL OUTPUTS

Logic “1” Voltage

Full

4.95

Logic “0” Voltage

Full

0.05

Logic “1” Voltage (3.0 VDD)

Full

2.95

Logic “0” Voltage (3.0 VDD)

Full

0.05

Output Coding

Offset

Binary

Code

POWER SUPPLY

VD, VDD Supply Current

Full

Power Dissipation

Full

300

400

Power Supply Rejection Ratio

(PSRR)6

+25

°CI

±10

mV/V

NOTES

1“Gain Tempco” is for converter only; “Temperature Coefficient” is for bandgap reference only.

2Output propagation delay (t

PD) is measured from the 50% point of the rising edge of the encode command to the midpoint of the digital outputs with 10 pF

maximum loads.

3RMS signal to rms noise with analog input signal 0.5 dB below full scale at specified frequency.

4Intermodulation measured relative to either tone with analog input frequencies of 9.5 MHz and 9.9 MHz at 7 dB below full scale.

5Power dissipation is measured at 30 MSPS with AIN of 10.3 MHz and digital outputs loaded with 10 pF maximum. See Figure 4 for power dissipation at other

conditions.

6Measured as the ratio of the change in offset voltage for 5% change in +V

Specifications subject to change without notice.

AD9049

REV. A

–3–

EXPLANATION OF TEST LEVELS

Test Level

–

100% Production Tested.

–

Parameter is guaranteed by design and characteriza-

tion testing.

–

Parameter is a typical value only.

ABSOLUTE MAXIMUM RATINGS*

VD, VDD

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+7 V

ANALOG IN . . . . . . . . . . . . . . . . . . . . . . –1.0 V to VD + 1.0 V

Digital Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to VD

VREF Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to VD

Digital Output Current . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA

Operating Temperature

AD9049BR/BRS . . . . . . . . . . . . . . . . . . . . . –40

°C to +85°C

Storage Temperature . . . . . . . . . . . . . . . . . . . –65

°C to +150°C

*Stresses above those listed under “Absolute Maximum Ratings” may cause

permanent damage to the device. This is a stress rating only and functional

operation of the device at these or any other conditions above those indicated in the

operational sections of this specification is not implied. Exposure to absolute

maximum ratings for extended periods may effect device reliability.

ORDERING GUIDE

Model

Temperature Range

Package Option*

AD9049BR

– 40

°C to +85°C

R-28

AD9049BRS

– 40

°C to +85°C

RS-28

*R = Small Outline (SO); RS = Shrink Small Outline (SSOP).

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