HI2315 Datasheet, PDF (8/9 Pages) Intersil Corporation – 10-Bit, 80 MSPS D/A Converter (Ultra-Low Glitch Version)

HI2315
Typical Performance Curves (Continued)
∆V = 0.7mV/^oC
1.25
30
1.15
20
0
-25
0
25
50
75
AMBIENT TEMPERATURE (^oC)
0
1
10
20
30
40
OUTPUT FREQUENCY (MHz)
FIGURE 9. S_REF vs AMBIENT TEMPERATURE
FIGURE 10. OUTPUT FREQUENCY vs CURRENT CONSUMPTION
NOTE:
4. Standard Measurement Conditions and Description: V_DD = 5.0V, V_REF = 2.0V, R = 200Ω, 16R - 3.3kΩ, T_A = 25^oC. The temperature
characteristics of external input data in Figure 10 = all “0” and “1” of rectangular wave; clock frequency = 80MHz.
GE (Glitch Energy)
GE, as described in the HI2315, is a spike noise which
appears synchronizing with the clock falling edge when the
input data (for 1 to 1024 input) changes to 128, 256, 384,
512, 640, 768, 896, and 1024. Figure 11 shows the change
state of GE for the staircase wave output, and Figure 12
shows the repetitive output waveform where the GE
appears. These figures exhibit the difference of this IC from
the convention device.
The HI2315 reduces the GE as shown in Figures 11 and 12.
2.0
CONVENTIONAL
DEVICE
1.0
HI2315
0
512
DIGITAL INPUT (V)
1024
CLK
FIGURE 11. CHANGE OF GE FOR STAIRCASE WAVE OUTPUT
10-8