Datasheet

AD9834
Rev. C | Page 5 of 36
Grade B, Grade C
1
Parameter
2
Min Typ Max Unit Test Conditions/Comments
POWER SUPPLIES
AVDD 2.3 5.5 V f
MCLK
= 75 MHz, f
OUT
= f
MCLK
/4096
DVDD 2.3 5.5 V
I
AA
6
3.8 5 mA
I
DD
6
B Grade 2.0 3 mA I
DD
code dependent (see Figure 8)
C Grade 2.7 3.7 mA I
DD
code dependent (see Figure 8)
I
AA
+ I
DD
6
B Grade 5.8 8 mA
C Grade 6.5 8.7 mA
Low Power Sleep Mode
B Grade 0.5 mA DAC powered down, MCLK running
C Grade 0.6 mA DAC powered down, MCLK running
1
B grade: MCLK = 50 MHz; C grade: MCLK = 75 MHz. For specifications that do not specify a grade, the value applies to both grades.
2
Operating temperature range is as follows: B, C versions: −40°C to +105°C, typical specifications are at 25°C.
3
For compliance, with specified load of 200 Ω, I
OUT
full scale should not exceed 4 mA.
4
Guaranteed by design.
5
Applies when REFOUT is sourcing current. The impedance is higher when REFOUT is sinking current.
6
Measured with the digital inputs static and equal to 0 V or DVDD.
R
SET
6.8kΩ
IOUT
12
10-BIT DAC
20pF
FS ADJUST
AD9834
REGULATOR
100n
F
CAP/2.5V
10nF
REFOUT
COMP
10nF
AVDD
SIN
ROM
R
LOAD
200Ω
ON-BOARD
REFERENCE
FULL-SCALE
CONTROL
02705-002
Figure 2. Test Circuit Used to Test the Specifications