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PDF AA88349 Data sheet ( Hoja de datos )
| Número de pieza | AA88349 | |
| Descripción | 8-BIT DAC | |
| Fabricantes | Agamem Microelectronic | |
| Logotipo |  |
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Agamem Microelectronics Inc.
www.DataSheet4U.com
PRELIMINARY
AA88349
8-BIT DAC
■ DESCRIPTION
The AA88349 is a CMOS processed digital to analog converter (DAC) with 8-bit reso-
lotion, low leakage and operating current. The AA88349 has 3 channels with build in
operational amplifier output buffers which could operate in the full-swing voltage range
from VCC to GND and enhance the Drive/Sink ability up to max. 1mA. Digital data (DI)
input serially in a max. 2.5MHz clock (CLK) rate. The latched 12-bit digital data is
converted into an analog DC voltage in the range from GND to VCC with 8-bit resolution
in one of the 3 channels by the D/A converter in a max. 100μs settling time. AA88349 is a
single 5V power DAC. Analog DC output could be full voltage swing as the analog power
is equal to the system power. In addition to normal D/A converter applications, AA88349 is
also available for electronic volume and instead of potentio- meters for adjustment due to
its high stability on the capacitive load. 8 pins TSSOP package type are available for
AA88349. Its operational temper- nature range is specified over –20℃ to 85℃.
■ FEATURES
• 12 bits serial data input (3 wire serial data transfer method, DI, CLK, LD)
• R-2R resistor ladder used for D/A conversion
• 3 channels with 8-bit resolution monotonic D/A converter
• 3 channels buffer operational amplifiers operating in the full voltage range from VCC to
GND
• Max. 2.5 MHz serial digital data input
• Serial I/O for cascade application
• Max. 1.0 mA output drive/sink current
• Single +5 V system power supply
■ APPLICATION
DVD, CD-R, CD-RW, DVC, digital camera, and other industrial equipments
©Copyright Agamem Microelectronics Inc.
1
www.agamem.com.tw 2008/10/31
AGAMEM MICROELECTRONICS INCOPERATION RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER
NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. AGAMEM DOES NOT
ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCTS OR CIRCUIT DESRIBED
HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
1 page  
Agamem Microelectronics Inc.
www.DataSheet4U.com
PRELIMINARY
AA88349
8-BIT DAC
ADDRESS
D8 D9 D10 D11
1 001
1 010
1 011
1 100
1 101
1 110
1 111
DATA LATCH SELECTED
NA
NA
NA
NA
NA
NA
NA
■ ABSOLUTE MAXIMUM RATINGS
PARAMETER
System Voltage
SYMBOL
VCC
Ta=25℃, unless otherwise noted
RATING
MIN TYP MAX
UNIT
-0.3 －
+7.0
V
Input Voltage
VIN
-0.3
－ VCC + 0.3
V
Output Voltage
VOUT
-0.3
－ VCC + 0.3
V
Power Dissipation
PD － － 250 mW
Operating Ambient
Temperature
Storage Temperature
TA
TS
-20 － +85
-55 － +150
℃
℃
NOTE: Stress above those listed under “Absolute Maximum Rating” may cause permanent
damage to the device. This is a stress rating only and functional operation of the device at these
or any other conditions above those indicated in the operational section of this specification is not
implied. Exposure to absolute maximum rating conditions for the extended periods of time may
affect device reliability.
■ ELECTRICAL CHARACTERISTICS
◆ RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
CONDITIONS
VCC
GND
IAO
System Voltage
Analog Output Current VAO shift≦0.3V
LIMITS
MIN TYP MAX
4.5 5.0
5.5
－0
－
-1.0 －
+1.0
UNIT
V
V
mA
©Copyright Agamem Microelectronics Inc.
5
www.agamem.com.tw 2008/10/31
AGAMEM MICROELECTRONICS INCOPERATION RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER
NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. AGAMEM DOES NOT
ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCTS OR CIRCUIT DESRIBED
HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet AA88349.PDF ] | |
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