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PDF MB88344 Data sheet ( Hoja de datos )
| Número de pieza | MB88344 | |
| Descripción | 8-BIT D/A CONVERTER WITH OPERATIONAL AMPLIFIER OUTPUT BUFFERS | |
| Fabricantes | Fujitsu | |
| Logotipo |  |
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FUJITSU SEMICONDUCTOR
DATA SHEET
DS04-13505-3E
LINEAR IC
8-Bit D/A Converter
with Operational Amplifier Output Buffers
MB88344/88344B
s DESCRIPTION
MB88344/MB88344B are 8-bit 36 channels D/A converters which have two reference voltages to use 36 channels
as 12 channels and 24 channels independently.
Each output channels has an operational amplifier output buffer and so large current drive is possible.
In the MB88344B, 6 Channels of DAC output (AO31-AO36) have four data registers each and so, the analog output
can be changed by the address input from A0 and A1 pins.
Digital data are input to the devices in serial and it is controlled by CLK and LD pins. This configuration makes a
cascade connections between devices.
The MB88344/MB88344B are suitable for electronic volumes and replacement for potentiometers for adjustment,
in addition to normal D/A converter applications.
s FEATURES
• Ultra low power consumption : Type. 1.1mW/channel
• Ultra small package
• Conversion method : R-2R resistor ladder
• On-chip operational amplifier output buffers : Max. +1.0/–1.0mA analog output sink/source current capability
• Analog data output range : 0 to VCC [V]
• Two analog output reference voltage : Analog data can be output in different reference voltages.
s PACKAGES
(Continued)
48 pin, Plastic SH-DIP
48 pin, Plastic QFP
48 pin, Plastic LQFP
(DIP-48P-M01)
(FPT-48P-M16)
(FPT-48P-M05)
This device contains circuitry to protect the inputs against damage due to high static voltages or electric fields. However, it is advised that normal precautions
be taken to avoid application of any voltage higher than maximum rated voltages to this high impedance circuit.
1
1 page  
MB88344B
MB88344/MB88344B
VDD2
VSS2
AO32
AO33
AO34
AO35
AO36
AO1
AO2
AO3
AO4
AO5
AO6
AO7
AO8
AO9
AO10
AO11
DI
CLK
LD
DO
GND
A1
(TOP VIEW)
1
INDEX
48
2 47
3 46
4 45
5 44
6 43
7 42
8 41
9 40
10 39
11 38
12 37
13 36
14 35
15 34
16 33
17 32
18 31
19 30
20 29
21 28
22 27
23 26
24 25
(DIP-48P-M01)
A0
VCC
AO31
AO30
AO29
AO28
AO27
AO26
AO25
AO24
AO23
AO22
AO21
AO20
AO19
AO18
AO17
AO16
AO15
AO14
AO13
AO12
VDD1
VSS1
(TOP VIEW)
AO36
AO1
AO2
AO3
AO4
AO5
AO6
AO7
AO8
AO9
AO10
AO11
37
38
39
40
41
42
43
44
45
46
47
48
INDEX
24 AO27
23 AO26
22 AO25
21 AO24
20 AO23
19 AO22
18 AO21
17 AO20
16 AO19
15 AO18
14 AO17
13 AO16
(FPT-48P-M05)
5
5 Page 
MB88344/MB88344B
Channel Selection
Input data
D7 D6 D5 D4 D3 D2 D1 D0
Selected channel
× × 0 0 0 0 0 0 Deselected
××000001
AO1 to AO30 selected
××011110
××011111
AO31 to AO36 selected (address 0)
××100100
××100101
AO31 to AO36 selected (address 1)
××101010
××101011
AO31 to AO36 selected (address 2)
××110000
××110001
AO31 to AO36 selected (address 3)
××110110
××110111
Deselected
××111111
×: Don't Care
Output Register Selection
A1 A0 Output register selected
0 0 address 0
0 1 address 1
1 0 address 2
1 1 address 3
11
11 Page | ||
| Páginas | Total 23 Páginas | |
| PDF Descargar | [ Datasheet MB88344.PDF ] | |
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