參數(shù)資料
型號: HI2309JCQ
廠商: INTERSIL CORP
元件分類: DAC
英文描述: Triple 10-Bit, 50 MSPS,3-Channel D/A Converter
中文描述: PARALLEL, WORD INPUT LOADING, 10-BIT DAC, PQFP48
封裝: PLASTIC, MQFP-48
文件頁數(shù): 9/9頁
文件大?。?/td> 652K
代理商: HI2309JCQ
10-9
Standard Measurement Conditions and
Description
V
DD
= 5.0V.
V
REF
= 2.0V.
R = 200
.
16R = 3.3k
.
T
A
= 25
o
C.
V
REF
in Figure 9 is fixed to 2V
DC
without resistor dividing.
Input data in Figure 10 = all “0” and “1” of rectangular wave,
clock frequency = 50MHz for a total value of three channels.
Notes On Operation
Selecting the Output Resistance:
HI2309 is a current output type D/A converter. To create the
output voltage, connect the resistor to the current output pin.
Specifications:
Output full scale voltage V
FS
Max = 2.0 [V].
Output full scale current I
FS
Max = 10 [mA].
Calculate the output resistance from V
FS
= I
FS
x R. Connect
a resistance sixteen times the output resistance to the refer-
ence current pin I
REF
. In some cases, this value may not
exist, a similar value can be used instead.
Note that the V
FS
will be the following:
V
FS
= V
REF
x 16 R/R’.
R is the resistor to be connected to the IO and R’ is the
resistor to be connected to the I
REF
. Power consumption
can be reduced by increasing the resistance, but this will on
the contrary, increase the glitch energy and data setting
time. Set the best values according to the purpose of use.
Correlation Between Data and Clock:
For HI2309 to display the desired performance as a D/A con-
verter, the data transmitted from outside and the clock must
be synchronized properly. Adjust the setup time (t
S
) and
hold time (t
H
) as specified in “Electrical Characteristics.”
V
DD
, V
SS
:
Separate the analog and digital signals around the device to
reduce noise effects. Bypass the V
DD
pin to each GND with
a 0.1
μ
F ceramic capacitor as near as possible to the pin for
both digital and analog signals.
Latch Up:
The AV
DD
and DV
DD
pins must be able to share the same
power supply of the board. This is to prevent latch up caused
by potential difference between the two pins when the power
is turned on.
I
REF
Pin:
The I
REF
pin is very sensitive to improve the AC
Characteristics. Pay attention for capacitance component
not to attach to this pin because its output may become
unstable.
VG Pin:
It is recommended to use a 1
μ
F capacitor to improve the AC
Characteristics, though the typical capacitance value
externally connected to the V
G
Pin is 0.1
μ
F.
FIGURE 9. OUTPUT FULL SCALE VOLTAGE vs AMBIENT
TEMPERATURE
FIGURE 10. OUTPUT FREQUENCY vs CURRENT
CONSUMPTION
Typical Performance Curves
(Continued)
1.95
1.90
O
0
-25
0
25
50
75
AMBIENT TEMPERATURE (
o
C)
V = 0.02mV/
o
C
50
40
10
1
5
10
15
20
OUTPUT FREQUENCY (MHz)
C
相關(guān)PDF資料
PDF描述
HI2312JCQ Analog-to-Digital Converter, 9-Bit
HI2315 10-Bit, 80 MSPS D/A Converter (Ultra-Low Glitch Version)
HI2315JCQ 10-Bit, 80 MSPS D/A Converter (Ultra-Low Glitch Version)
HI2325 3.3V Dual 8-Bit, 40MSPS A/D Converter with Internal Reference and Digital Clamp
HI2325IN 3.3V Dual 8-Bit, 40MSPS A/D Converter with Internal Reference and Digital Clamp
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HI2312JCQ 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog-to-Digital Converter, 9-Bit
HI2315 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:10-Bit, 80 MSPS D/A Converter (Ultra-Low Glitch Version)
HI2315JCQ 制造商:Rochester Electronics LLC 功能描述: 制造商:Intersil Corporation 功能描述:
HI2325 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:3.3V Dual 8-Bit, 40MSPS A/D Converter with Internal Reference and Digital Clamp
HI2325IN 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:3.3V Dual 8-Bit, 40MSPS A/D Converter with Internal Reference and Digital Clamp