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參數(shù)資料
| 型號： | DAC702KH |
| 英文描述： | Monolithic 16-Bit DIGITAL-TO-ANALOG CONVERTERS |
| 中文描述： | 單片16位數(shù)字到模擬轉(zhuǎn)換器 |
| 文件頁數(shù)： | 9/12頁 |
| 文件大?。?/td> | 308K |
| 代理商： | DAC702KH |
9
DAC701, 702, 703
VOLTAGE OUTPUT MODELS
ANALOG OUTPUT
DAC701 UNIPOLAR
DAC703 BIPOLAR
DIGITAL INPUT CODE
16-BIT
15-BIT
14-BIT
16-BIT
15-BIT
14-BIT
1LSB
0000
H
FFFF
H
(
μ
V)
(V)
(V)
153
305
610
305
610
1224
+9.99878
–10.0000
+9.99985
0
+9.99969
0
+9.99939
0
+9.99960
–10.0000
+9.99939
–10.0000
ANALOG OUTPUT MODEL
ANALOG OUTPUT
DAC702 BIPOLAR
DIGITAL INPUT CODE
16-BIT
15-BIT
14-BIT
1LSB
0000
H
FFFF
H
(
μ
A)
(mA)
(mA)
0.031
–0.99997
+1.00000
0.061
–0.99994
+1.00000
0.122
–0.99988
+1.00000
TABLE II. Digital Input and Analog Output Relationships.
If the output cannot be sensed at Common or the system
ground point as mentioned above, the differential output
circuit shown in Figure 8 is recommended. In this circuit the
output voltage is sensed at the load common and not at the
D/A converter common as in the previous circuits. The value
of R
6
and R
7
must be adjusted for maximum common-mode
rejection at R
L
. Note that if R
3
is negligible, the circuit of
Figure 8 can be reduced to the one shown in Figure 7. Again
the effect of R
4
is negligible.
The D/A converter and the wiring to its connectors should be
located to provide optimum isolation from sources of RFI
and EMI. The key concept in elimination of RF radiation or
pickup is loop area; therefore, signal leads and their return
conductors should be kept close together. This reduces the
external magnetic field along with any radiation. Also, if a
single lead and its return conductor are wired close together,
they present a small flux-capture cross section for any
external field. This reduces radiation pickup in the circuit.
FIGURE 7. Preferred External Op Amp Configuration.
FIGURE 8. Differential Sensing Output Op Amp
Configuration.
A
1
R
DAC
DAC702
R
B
Common
I
OUT
R
1
R
L
R
3
Sense Output
+5VDC
Supply
±15VDC
Supply
+V
COM
–V
System Ground
Point
+V
COM
Alternate Ground
Sense Connection
R
4
To +V
CC
To –V
CC
To V
DD
1μF
1μF
1μF
*
2.45k
R
F
*
R
2
R should be equal to the output impedance at the current output
to compensate for the bias current drift of A . Use standard 10%,
1/4W carbon composition or equivalent resistors.
DAC702
2.45k
10k
R
DAC
R
B
R
F
*
R
F
A
1
R
DAC
DAC702
R
6
Common
I
OUT
R
1
R
L
R
3
+5VDC
Supply
±15VDC
Supply
+V
COM
–V
System Ground
Point
+V
COM
Alternate Ground
Sense Connection
R
4
To +V
CC
To –V
CC
To V
DD
1μF
1μF
1μF
2.45k
R
F
*
R
2
DAC702
10k
R
DAC
R
F
*
R
F
R
5
R
7
Sense
Output
+
5
R
7
R
6
=
R
=
+
F
R
1
R
R
DAC
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DAC702LH | Monolithic 16-Bit DIGITAL-TO-ANALOG CONVERTERS |
| DAC702SH | Monolithic 16-Bit DIGITAL-TO-ANALOG CONVERTERS |
| DAC703BH-BI | Monolithic 16-Bit DIGITAL-TO-ANALOG CONVERTERS |
| DAC703CH-BI | Monolithic 16-Bit DIGITAL-TO-ANALOG CONVERTERS |
| DAC703JP | Monolithic 16-Bit DIGITAL-TO-ANALOG CONVERTERS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DAC702KH-2 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| DAC702LH | 制造商:BB 制造商全稱:BB 功能描述:Monolithic 16-Bit DIGITAL-TO-ANALOG CONVERTERS |
| DAC702SH | 制造商:BB 制造商全稱:BB 功能描述:Monolithic 16-Bit DIGITAL-TO-ANALOG CONVERTERS |
| DAC703 | 制造商:BB 制造商全稱:BB 功能描述:Monolithic 16-Bit DIGITAL-TO-ANALOG CONVERTERS |
| DAC703B | 制造商:BB 制造商全稱:BB 功能描述:Monolithic 16-Bit DIGITAL-TO-ANALOG CONVERTERS |
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