Agamem Microelectronics Inc. AA88347L PRELIMINARY 8-BIT DAC ■ DESCRIPTION The AA88347L is a CMOS processed digital to analog converter (DAC) with 8-bit resolotion, low leakage and operating current. The AA88347L 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. 2.5 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. 200µs settling time. AA88347L is a single 3V 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, AA88347L is also available for electronic volume and instead of potentio- meters for adjustment due to its high stability on the capacitive load.16 pins TSSOP package type are available for AA88347L. 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. 2.5 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 +3 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 2008/12/31 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. AA88347L PRELIMINARY 8-BIT DAC ■ BLOCK DIAGRAM * VCC and GND are for digital block and operational amplifier buffer block * VDD, VSS are only for Analog block except operational amplifier buffer block ≦ VDD ≦ VCC * GND ≦ VSS ≦ VDD – 2V * VSS + 2V ■ PIN DESCRIPTIONS ©Copyright Agamem Microelectronics Inc. 2 www.agamem.com.tw 2008/12/31 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. AA88347L PRELIMINARY 8-BIT DAC PIN NO. 9 PIN NAME VCC PIN FUNCTION +3V system power supply pin 16 GND System ground pin 8 VDD Analog power supply pin 1 VSS Analog ground pin 13 CLK Serial clock input pin. At its rising edge, DI data shift into the Shift-Register. 12 LD . . 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 Data Input/Output 14 D1 Serial Digital Data input pin 11 DO Serial Digital Data output pin. Output from the 12th data in the Shift-Register DAC Output 15 AO1 2 AO2 3 AO3 4 AO4 8-bit D/A converter outputs 5 AO5 Output range is from VSS 6 AO6 7 AO7 10 AO8 to VDD ■ CASCADE CONNECTION ©Copyright Agamem Microelectronics Inc. 3 www.agamem.com.tw 2008/12/31 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 AA88347L 8-BIT DAC VDD and VSS of each AA88347L could be different depend on the application consideration ■ DATA INPUT FORMAT ■ DATA FORMAT IN SHIFT REGISTER ■ DATA CONVERSION ©Copyright Agamem Microelectronics Inc. 4 www.agamem.com.tw 2008/12/31 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. AA88347L PRELIMINARY 8-BIT DAC 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 DAC Output Level AOX VSS VSS + LSB* VSS + 2 * LSB ︴ 0 1 VDD - LSB VDD * LSB = (VDD-VSS)/255 ■ CHANNEL MAP ADDRESS 1H 2H 3H 4H 5H 6H 7H 8H D-L#1 D-L#1 D-L#1 D-L#1 D-L#1 D-L#1 D-L#1 D-L#1 R-2R D/A#1 R-2R D/A#2 R-2R D/A#3 R-2R D/A#4 R-2R D/A#5 R-2R D/A#6 R-2R D/A#7 R-2R D/A#8 OP-B#1 OP-B#2 OP-B#3 OP-B#4 OP-B#5 OP-B#6 OP-B#7 OP-B#8 AO1 AO2 AO3 AO4 AO5 AO6 AO7 AO8 ■ ADDRESS DECODING D8 0 0 0 0 0 0 0 0 1 ADDRESS D9 D10 0 0 0 0 0 1 0 1 1 0 1 0 1 1 1 1 0 0 ©Copyright Agamem Microelectronics Inc. DATA LATCH SELECTED D11 0 1 0 1 0 1 0 1 0 NA Data Latch #1 Data Latch #2 Data Latch #3 Data Latch #4 Data Latch #5 Data Latch #6 Data Latch #7 Data Latch #8 5 www.agamem.com.tw 2008/12/31 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. AA88347L Agamem Microelectronics Inc. PRELIMINARY 1 1 1 1 1 1 1 8-BIT DAC 0 0 0 1 1 1 1 0 1 1 0 0 1 1 1 0 1 0 1 0 1 NA NA NA NA NA NA NA ■ ABSOLUTE MAXIMUM RATINGS ℃, unless otherwise noted TA=25 PARAMETER SYMBOL RATING TYP － MAX +7.0 UNIT System Voltage VCC MIN -0.3 Analog Voltage VDD -0.3 － +7.0 V Input Voltage VIN -0.3 － VCC + 0.3 V VOUT -0.3 － VCC + 0.3 V PD － － 250 mW TA -20 － +85 ℃ TS -55 － +150 ℃ Output Voltage Power Dissipation Operating Ambient Temperature Storage Temperature V 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 MIN ©Copyright Agamem Microelectronics Inc. 6 LIMITS TYP MAX www.agamem.com.tw UNI T 2008/12/31 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. AA88347L PRELIMINARY VCC GND 8-BIT DAC System Voltage VDD 2.7 3.0 3.6 V VCC ≧ VDD, － 0 － V VDD – VSS ≧ 2.0V 2.0 － VCC V GND － VCC – 2.0 V -1.0 － +1.0 mA Analog Voltage VSS ≧ GND IAO Analog Output Current VAO shift≦0.3V COL Analog Output Load Capacitance for Oscillation limit － － +1.0 μF TA Operating Ambient Temperature -20 － +85 ℃ VSS ◆ DC CHARACTERISTICS Digital Block PARAMETER System Voltage System Current Input Leakage Current Digital Input Low Voltage Digital Input High Voltage Digital Output Low Digital Output High TA = 25℃ SYMBOL VCC ICC IILK VIL VIH VOL VOH VALUE MIN TYP MAX 2.7 3.0 3.6 1.0 3.0 － -5 － 0.8-VCC － VCC – 0.4 － － － － － +5 0.2-VCC － 0.4 － UNIT CONDITIONS V mA CLK = 1 MHz, No load; μA VIN = 0V / 3V V V V IOL = +2.5 mA V IOH = –400μA Analog Block PARAMETER Analog Current Analog Voltage Analog Output Drive Range (VCC=VDD=3V, TA = 25℃ SYMBOL IDD VDD VSS VAOH VAOH ©Copyright Agamem Microelectronics Inc. VALUE UNIT CONDITIONS MIN TYP MAX 0.5 0.8 mA No load － 2.0 VCC V VDD –VSS ≧ － GND － VCC – 2.0 V 2V VDD – 0.1 VDD VDD + 0.1 V IAOH = 0μA VDD – 0.2 VDD VDD + 0.2 V IAOH = –500μ A 7 www.agamem.com.tw 2008/12/31 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. AA88347L Agamem Microelectronics Inc. PRELIMINARY VSS=GND=0V, Data=#FF) Analog Output Sink Range (VCC=VDD=5V, VSS=GND=0V, Data=#00) Resolution (AOx) 8-BIT DAC VAOH VDD – 0.3 VDD VDD + 0.3 V IAOH = –1mA VAOL VAOL VAOL VSS – 0.1 VSS – 0.2 VSS VSS + 0.1 VSS VSS + 0.2 VSS – 0.3 VSS VSS + 0.3 V V V IAOL = 0μA IAOL = 500μA IAOL = 1mA RES － 8 － bit VCC =3.6V, GND=0V INL -3.0 － +3.0 LSB VDD=3.36V, VSS=0.3 DNL -1.0 0 +2.0 LSB LSB = 12mv, no load Integral Non-Linearity Differential Non-Linearity 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 VALUE UNIT MIN TYP MAX ns 400 1000 － ns － 200 － TAOS － － 200 μs TDDO － － 170 ns CONDITIONS *RAL = 10 kΩ, CAL = 50pF (#00--> #FF) **CL = 100 pF (Max.) AC TEST CONDITION ©Copyright Agamem Microelectronics Inc. 8 www.agamem.com.tw 2008/12/31 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. AA88347L PRELIMINARY 8-BIT DAC TIMING CHART ■ ORDERING INFORMATION ORDER NO. PACKAGE PACKING ONE REEL Q’TY MARK CHART AA88347 AA88347L TSSOP16L Tape & Reel 2,500ea XXXX L ■ PACKAGE DIMENSIONS ©Copyright Agamem Microelectronics Inc. 9 www.agamem.com.tw 2008/12/31 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 ©Copyright Agamem Microelectronics Inc. AA88347L 8-BIT DAC 10 www.agamem.com.tw 2008/12/31 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.