View AA88349_4566568.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

Agamem Microelectronics Inc.
PRELIMINARY
DESCRIPTION
AA88349
8-BIT DAC
The AA88349 is a CMOS processed digital to analog converter (DAC) with 8-bit resolotion, 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. 100s 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
(c)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.
Agamem Microelectronics Inc.
PRELIMINARY
BLOCK DIAGRAM
Digital (Clock) CLK DI (Serial digital Input)
D0 D1 D2 D3 D4 D5 D6
AA88349
8-BIT DAC
Block
D7 D8 D9 D10 D11
12-bit Shift Register
---------------------4
DO (Serial digital Ouput)
4-bit Address Decoder
1 2 3 4
LD (Strobe) GND (System Ground)
----
6
7
8
VCC (System Power)
8
---------------------
8
8-bit 8-bit --------------------Data Latch #8 Data Latch #8
8 8
Analog
Block
R-2R R-2R D/A Converter #1 - - - - - - - - - - - - - - - - - - - - - D/A Converter #8
OP-B #1 OP-B #8
-------------------------
Analog Output
AO1
****************************************
AO3
PIN DESCRIPTIONS
PIN NO. 4 8 6 5
PIN NAME VCC GND CLK LD
PIN FUNCTION +5V system power supply pin System ground pin
.
Serial clock input pin. At its rising edge, DI data shift into the Shift-Register. Data Strobe pin. When it's on high, upper 4-bit and lower 8-bit of the 12-bit in the Shift-Register be latched into the Address Decoder and the Data-Latch, respectively
(c)Copyright Agamem Microelectronics Inc.
2
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.
Agamem Microelectronics Inc.
PRELIMINARY
PIN NO. Data Input 7 DAC Output 1 2 3 AO1 AO2 AO3 8-bit D/A converter outputs Output range is from GND to VCC D1 Serial Digital Data input pin PIN NAME PIN FUNCTION
AA88349
8-BIT DAC
DATA INPUT FORMAT
DATA FORMAT IN SHIFT REGISTER
(c)Copyright Agamem Microelectronics Inc.
3
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.
Agamem Microelectronics Inc.
PRELIMINARY
DATA CONVERSION DATA D7 D6 D5 D4 D3 D2 D1 D0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1
AA88349
8-BIT DAC
DAC OUTPUT LEVEL AOX GND GND + LSB* GND+ 2 * LSB VCC - LSB VCC
LSB = (VCC-GND)/255 CHANNEL MAP
ADDRESS DECODING ADDRESS D9 D10 0 0 0 0 0 1 0 1 1 0 1 0 1 1 1 1 DATA LATCH SELECTED NA Data Latch #1 NA NA NA Data Latch #2 Data Latch #3 NA
D8 0 0 0 0 0 0 0 0
D11 0 1 0 1 0 1 0 1
(c)Copyright Agamem Microelectronics Inc.
4
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.
Agamem Microelectronics Inc.
PRELIMINARY
D8 1 1 1 1 1 1 1 ADDRESS D9 D10 0 0 0 1 0 1 1 0 1 0 1 1 1 1 D11 1 0 1 0 1 0 1
AA88349
8-BIT DAC
NA NA NA NA NA NA NA
DATA LATCH SELECTED
ABSOLUTE MAXIMUM RATINGS
Ta=25, unless otherwise noted
PARAMETER System Voltage Input Voltage Output Voltage Power Dissipation Operating Ambient Temperature Storage Temperature
SYMBOL VCC VIN VOUT PD TA TS
MIN -0.3 -0.3 -0.3 -20 -55
RATING TYP
MAX +7.0 VCC + 0.3 VCC + 0.3 250 +85 +150
UNIT V V V mW
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 VCC GND IAO PARAMETER System Voltage Analog Output Current VAO shift0.3V CONDITIONS MIN 4.5 -1.0 LIMITS TYP MAX 5.0 5.5 0 +1.0 UNIT V V mA
(c)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.
Agamem Microelectronics Inc.
PRELIMINARY
AA88349
8-BIT DAC
LIMITS UNIT
SYMBOL
PARAMETER Analog Output Load Capacitance for Oscillation limit Operating Ambient Temperature
CONDITIONS MIN TYP MAX +1.0 +85 -20
COL TA
F
DC CHARACTERISTICS Ta = 25 PARAMETER System Voltage System Current Input Leakage Current Digital Input Low Voltage Digital Input High Voltage Digital Output Low Digital Output High SYMBOL VCC ICC IILK VIL VIH VOL VOH VALUE MIN TYP MAX 4.5 5.0 5.5 1.2 2.5 -5 0.5VCC VCC - 0.4 UNIT CONDITIONS
V mA CLK = 1 MHz, No load;
+5 A VIN = 0V / 5V 0.2VCC V V 0.4 V IOL = +2.5 mA V IOH = -400A
NOTES: Integral Non-Linearity: The difference between the digital data converted DC analog values and a reference straight line drawn through the first and the last output values Differential Non-Linearity: The difference between the ideal and real increment value of DC analog voltage when the digital data increase 1 bit.
AC CHARACTERISTICS Ta = 25 PARAMETER Clock Rate Load Strobe Pulse Width Analog Output Settling Time Digital Output Delay Time SYMBOL TCR TLDP TAOS TDDO VALUE UNIT MIN TYP MAX 400 1000 ns ns 200 100 350 s ns CONDITIONS
*RAL = 10 k, CAL = 50pF (#00--> #FF) **CL = 100 pF (Max.)
(c)Copyright Agamem Microelectronics Inc.
6
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.
Agamem Microelectronics Inc.
PRELIMINARY
AC TEST CONDITION
AA88349
8-BIT DAC
TIMING CHART
ORDERING INFORMATION ORDER NO. AA88349A PACKAGE TSSOP8L PACKING Tape & Reel ONE REEL Q'TY 3,000ea MARK CHART
88349 XXXX A
(c)Copyright Agamem Microelectronics Inc.
7
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.
Agamem Microelectronics Inc.
PRELIMINARY
PACKAGE DIMENSIONS
AA88349
8-BIT DAC
NOTES: Package body sizes exclude mold flash protrusions or gate burrs Tolerance 0.1 (4 mil) unless otherwise specified Coplanarity:0.1 Controlling dimension is millimeter converted inch dimensions are not necessarily exact Followed from jedec mo-153 DIMENSIONS IN MILLIMETERS MIN NOM MAX
--0.05 0.80 0.19 0.09 2.90 6.20 4.30 --0.45 --0 ----1.00 ----3.00 6.40 4.40 0.65 0.60 ----1.20 0.15 1.05 0.30 0.20 3.10 6.60 4.50 --0.75 0.10 8
SYMBOLS
A A1 A2 b C D E E1 e L y
DIMENSIONS IN INCHES MIN NOM MAX
--0.002 0.031 0.007 0.004 0.114 0.244 0.169 --0.018 --0 ----0.039 ----0.118 0.252 0.173 0.026 0.024 ----0.048 0.006 0.041 0.012 0.008 0.122 0.260 0.177 --0.030 0.004 8
(c)Copyright Agamem Microelectronics Inc.
8
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.

▲Up To Search▲

Price & Availability of AA88349

	To Download AA88349 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .