AA88348 Datasheet, PDF (1/1 Pages) Agamem Microelectronic Inc. – 8-BIT DAC

Agamem Microelectronics Inc.
AA88348
8-BIT DAC
„ DESCRIPTION
The AA88348 is a CMOS processed digital to analog converter (DAC) with 8-bit resolution, low leakage and
operating current. The AA88348 has 8 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. 10 MHz clock (CLK) rate. The latched 12-bit digital data is converted into
an analog DC voltage in the range from VSS to VDD with 8-bit resolution in one of the 8 channels by the D/A
converter in a max. 20ȝs setting time. AA88348 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,
AA88348 is also available for electronic volume and instead of potentiometers for adjustment due to its high
к к ^{stability on the capacitive load. 16 pins TSSOP package type are available for AA88348. 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
• 8 channels with 8-bit resolution monotonic D/A converter
• 8 channels buffer operational amplifiers operating in the full voltage range from VCC to GND only if VDD=VCC
and VSS=GND
• Max. 10 MHz serial digital data input
• Serial I/O for cascade application
• Max. 1.0 mA output drive/sink current
• Two separate power supply/ground lines for system and analog power supply
• Single +5 V system power supply
„ APPLICATION
• DVD, CD-R, CD-RW, DVC, digital camera, and other industrial equipments
„ BLOCK DIAGRAM
©Copyright Agamem Microelectronics Inc.
1
www.agamem.com.tw 2010/02/04 Ver 2.0
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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 DESCRIBED HEREIN; NEITHER
DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.