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參數資料
| 型號： | HS-565ARH-T |
| 廠商： | Intersil Corporation |
| 英文描述： | Radiation Hardened High Speed, Monolithic Digital-to-Analog Converter(抗輻射高速數模轉換器) |
| 中文描述： | 輻射硬化高速，單片數字模擬轉換器（抗輻射高速數模轉換器） |
| 文件頁數： | 3/6頁 |
| 文件大小： | 108K |
| 代理商： | HS-565ARH-T |
3
Applying the HS-565ARH-T
OP AMP Selection
The HS-565ARH-T’s current output may be converted to
voltage using the standard connections shown in Figures 1
and 2. The choice of operational amplifier should be
reviewed for each application, since a significant trade-off
may be made between speed and accuracy. Remember
settling time for the DAC-amplifier combination
is:
)
2
t
A
where t
D
, t
A
are settling times for the DAC and amplifier.
No Trim Operation
The HS-565ARH-T will perform as specified without
calibration adjustments. To operate without calibration,
substitute 50
resistors for the 100
trimming
potentiometers: In Figure 1 replace R2 with 50
; also
remove the network on pin 8 and connect 50
to ground.
For bipolar operation in Figure 2, replace R3 and R4 with
50
resistors.
With these changes, performance is guaranteed as shown
under Specifications, “External Adjustments”. Typical
unipolar zero will be
±
0.50 LSB plus the op amp offset.
The feedback capacitor C must be selected to minimize
settling time.
t
D
(
(
)
2
+
FIGURE 1. UNIPOLAR VOLTAGE OUTPUT
FIGURE 2. BIPOLAR VOLTAGE OUTPUT
V
O
-
+
R (SEE
TABLE 7)
DAC
OUT
9
10
1120V SPAN
10V SPAN
2.5K
5K
5K
C
9.95K
DAC
IO
24
MSB
13
LSB
. . . . .
CODE
INPUT
(4 x I
REF
x CODE)
-V
EE
PWR
GND
7
I
REF
0.5mA
HS-565ARH-T
3K
3.5K
19.95
K
+
-
10V
3
4
V
CC
+
-
6
5
REF
GND
REF
IN
REF OUT
R2
100
8
BIP.
OFF.
+15V
-15V
R1
50k
100k
100
V
O
-
+
R (SEE
TABLE 7)
DAC
OUT
9
10
1120V SPAN
10V SPAN
2.5K
5K
5K
C
9.95K
IO
24
MSB
13
LSB
. . . . .
CODE
INPUT
DAC
(4 x I
REF
x CODE)
-V
EE
PWR
GND
7
I
REF
0.5mA
HS-565ARH-T
3K
3.5K
19.95K
+
-
10V
3
4
V
CC
+
-
6
5
REF
GND
REF
IN
REF OUT
R4
100
8
BIP.
OFF.
R3
100
HS-565ARH-T
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