AD9834
Grade B, Grade C1
Parameter2
POWER SUPPLIES
AVDD
Min
Typ
Max
Unit
Test Conditions/Comments
2.3
2.3
5.5
5.5
5
V
fMCLK = 75 MHz, fOUT = fMCLK/4096
DVDD
V
mA
6
IAA
3.8
6
IDD
B Grade
C Grade
IAA + IDD
2.0
2.7
3
3.7
mA
mA
IDD code dependent (see Figure 8)
IDD code dependent (see Figure 8)
6
B Grade
C Grade
5.8
6.5
8
8.7
mA
mA
Low Power Sleep Mode
B Grade
C Grade
0.5
0.6
mA
mA
DAC powered down, MCLK running
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, IOUT 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 sinꢀing current.
6 Measured with the digital inputs static and equal to 0 V or DVDD.
R
SET
6.8kΩ
100nF
10nF
AVDD
10nF
CAP/2.5V
REFOUT
FS ADJUST
COMP
ON-BOARD
REFERENCE
FULL-SCALE
REGULATOR
CONTROL
12
IOUT
SIN
ROM
10-BIT DAC
AD9834
R
LOAD
200Ω
20pF
Figure 2. Test Circuit Used to Test the Specifications
Rev. C | Page 5 of 36
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