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MITSUBISHI M62367GP 3V TYPE 8-BIT 8CH D-A CONVERTER WITH BUFFER AMPLIFIERS DESCRIPTION The M62367GP is a CMOS semiconductor IC has 8 channels of 8bit D-A converter. It is operable with a low supply voltage between 2.7~3.6V,and is easy to use due to serial data input,and 3pin(DI,CLK,LD)connection with microcomputer. The IC also contains Do pin terminal,enabling cascade connection,and therefore is suitable for automatic control in combination with a microcomputer. PIN CONFIGURATION (TOP VIEW) VSS (VrefL) Ao2 Ao3 Ao4 Ao5 Ao6 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 GND Ao1 DI CLK LD Do Ao8 Vcc FEATURES *Operable with a low voltage between 2.7~3.6V *12-bit serial data input(connected via 3 pins:DI,CLK,LD) *8 channels of R-2R and segment type high-performance 8-bit D-A converters *8 buffer operational amplifiers with full swing of output voltage between Vcc and GND. *High oscillation stability against the capacitive load of buffer operational amplifiers. Ao7 VDD (VrefU) Outline 16P2E-A APPLICATION Digtal-analog conversion in industrial or home-use electronic equipment. Automatic control in combination with EEPROM and microcomputer(Substitute for conventional semi-fixed resistor) BLOCK DIAGRAM GND 16 Ao1 15 DI 14 CLK 13 LD 12 Do 11 Ao8 10 Vcc 9 8-BIT R-2R + SEGMENT D-A CONVERTER 12-BIT SHIFT REGISTER D-A D0 1 2 3 4 5 D7 D8 9 10 D11 8-BIT LATCH L (8) (8) ADDRESS DECODER 8-BIT LATCH 8-BIT R-2R + SEGMENT D-A CONVERTER L D-A - L D-A - L D-A - L D-A - L D-A - - 1 Vss (VrefL) 2 Ao2 3 Ao3 4 Ao4 5 Ao5 6 Ao6 7 Ao7 8 VDD (VrefU) MITSUBISHI ELECTRIC ( 1/5) MITSUBISHI M62367GP 3V TYPE 8-BIT 8CH D-A CONVERTER WITH BUFFER AMPLIFIERS EXPLANATION OF TERMINALS Pin No. 14 11 13 12 15 2 3 4 5 6 7 10 9 16 8 1 Symbol DI Do CLK LD Ao1 Ao2 Ao3 Ao4 Ao5 Ao6 Ao7 Ao8 VCC GND VDD VSS 8-bit D-A converter output terminal Function Serial data input terminal to input 12-bit long serial data Terminal to output MSB data of 12-bit shift register Shift clock input terminal.Input signal at DI pin is input to 12-bit shift register at rise of shift clock pulse When H-level signal is input to this terminal.The value stored in 12-bit shift register is loaded in decoder and D-A converter output register Power supply terminal GND terminal D-A converter upper reference voltage input terminal D-A converter lower reference voltage input terminal BLOCK DIAGRAM FOR EXPLANATION OF TERMINALS Vcc 9 DI 14 12-BIT SHIFT REGISTER CLK 13 D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 11 Do GND 16 ADDRESS DECODER 8 8 1234567 8 12 LD D0 1 ............ 8-BIT LATCH 8-BIT R-2R + SEGMENT D-A CONVERTER D7 .............................................8 .............................................. D0 ............ 8-BIT LATCH 8-BIT R-2R + SEGMENT D-A CONVERTER D7 - ................................................................................................... - 8 VDD (VrefU) 15 Ao1 10 Ao8 1 Vss (VrefL) MITSUBISHI ELECTRIC ( 2/5) MITSUBISHI M62367GP 3V TYPE 8-BIT 8CH D-A CONVERTER WITH BUFFER AMPLIFIERS DIGITAL DATA FORMAT LAST LSB FIRST MSB DAC DATA D0 0 1 0 1 D1 0 0 1 1 1 1 D9 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 D10 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 D2 0 0 0 0 1 1 D11 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 D3 0 0 0 0 1 1 D4 0 0 0 0 1 1 D5 0 0 0 0 1 1 D6 0 0 0 0 1 1 D7 0 0 0 0 1 1 DAC SELECT DATA D-A output (VrefU-VrefL) / 256 X 1 +VrefL (VrefU-VrefL) / 256 X 2 +VrefL (VrefU-VrefL) / 256 X 3 +VrefL (VrefU-VrefL) / 256 X 4 +VrefL (VrefU-VrefL) / 256 X 255 +VrefL VrefU 0 1 D8 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 DAC selection Don`t care Ao1 selection Ao2 Ao3 Ao4 Ao5 Ao6 Ao7 Ao8 Don't care Don't care Don't care Don't care Don't care Don't care Don't care * VrefU=VDD VrefL=Vss TIMING CHART (MODEL) MSB DI D11 D10 D9 D8 D2 D1 LSB D0 CLK LD D-A OUTPUT MITSUBISHI ELECTRIC ( 3/5) MITSUBISHI M62367GP 3V TYPE 8-BIT 8CH D-A CONVERTER WITH BUFFER AMPLIFIERS ABSOLUTE MAXIMUM RATINGS Symbol Vcc VDD VIN Vo Pd Topr Tstg Parameter Supply voltage Upper reference voltage of D-A converter Input voltage Output voltage Power dissipation Operating temperature Storage tempareture Conditions Ratings -0.3~+7.0 -0.3~+7.0 -0.3~VCC+0.3 -0.3~VCC+0.3 150 -20~+85 -40~+125 Unit V V V V mW C C ELECTRICAL CHARACTERISTICS Digital part(VCC,VrefU=+3V10%, VCCVrefU,GND,VrefL=0V,Ta=-20 ~ +85C,unless otherwise noted) Symbol VCC Icc IILK VIL VIH VOL VOH Parameter Supply voltage Circuit current Input leak current Input low voltage Input high voltage Output low voltage Output high voltage IOL=2.5mA IOH=-400A VCC-0.4 CLK=1MHz operation,Vcc=3V,IAO=0A VIN=0~VCC Test conditions Min. 2.7 -10 0.8VCC 0.4 Limits Typ. 3.0 Max. 3.6 3.5 10 0.2VCC Unit V mA A V V V V Analog part(VCC,VrefU=+3V10%, VCCVrefU,GND,VrefL=0V,Ta=-20 ~ +85C,unless otherwise noted) Symbol IrefU VrefU VrefL VAO IAO SDL SL SZERO SFULL Co Ro Parameter Current dissipation D-A converter upper reference voltage range D-A converter lower reference voltage range Test conditions VrefU=3V,VrefL=0V Data condition:maximum current Reference voltage can not always be set to any value in this range,because it is restricted to the buffer amplifier output voltage range 0.7Vcc GND 0.1 0.2 -0.3 -1.0 -1.5 -2 -2 Min. Limits Typ. 1.4 Max. 2.5 Vcc 0.3Vcc Vcc-0.1 Vcc-0.2 1 1.0 1.5 2 2 0.1 5 Unit mA V V V V mA LSB LSB LSB LSB F IAO=100A Buffer amplifier output driver voltage IAO=+500A range -200A Upper saturation voltage=0.4V Buffer amplifier output voltage Lower saturation voltage=0.4V range Differential nonlinearity error Vcc=2.760V Nonlinearity error VrefU=2.610V Zero code error VrefL=0.050V(10mV/LSB) Without load(IAO=0) Full scale error Output capacitative load Buffer amplifier output impedance MITSUBISHI ELECTRIC ( 4/5) MITSUBISHI M62367GP 3V TYPE 8-BIT 8CH D-A CONVERTER WITH BUFFER AMPLIFIERS AC CHARACTERISTICS(VCC,VrefU=+3V10%, VCCVrefU,GND,VrefL=0V,Ta=-20 ~ +85C,unless otherwise noted) Symbol tCKL tCKH tCR tCF tDCH tCHD tCHL tLDC tLDH tDo tLDD Parameter Clock "L"pulse width Clock "H"pulse width Clock rise time Clock fall time Data set up time Data hold time LD set up time LD hold time LD "H" pulse duration Data output delay time D-A output setting time CL=100pF CL100pF,VAO:0.1 2.6V The time until the output becomes the final value of 1/2 LSB Test conditions Min 200 200 Limits Typ Max Unit ns ns ns ns ns ns ns ns ns 200 200 30 60 200 100 100 70 350 300 ns s TIMING CHART tCR tCKH tCF CLK tCKL DI tDCH tCHD tLDH tCHL LD tLDC tLDD D-A OUTPUT tDo Do OUTPUT MITSUBISHI ELECTRIC ( 5/5) |
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