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ds04-28212-1e fujitsu semiconductor data sheet assp image processing 30mhz 8-bit a/d converter (with amp) MB40C218 n description MB40C218 is a high-speed converter using a fast cmos technology. n features resolution : 8 bit linearity error : 0.2% (standard) differential linearity error : 0.12% (standard) maximum conversion rate : 30 msps(minimum) supply voltage : ampli?r +5.00 0.25 [v] a/d converter +3.00 0.30 [v] digital input voltage range : ttl compatible digital output voltage range : 3 v cmos level compatible (tristate output) analog input voltage range : 0 to 1.5 v (1.5 v p-p ) analog input capacitance : 15 pf (standard) power dissipation : 90 mw (standard: @ av dd5 = 5.00 v, av dd3 = dv dd = 3.00 v) additional features : 1:3 gain amp with dual input selector (bandwidth: 20 mhz, inverting amp) vrt reference voltage adjustment amp power saving capability digital output test capability analog input offset resistor package : 32-pin plastic qfp n package (fpt-32p-m21) 32 pin, plastic qfp
2 MB40C218 n pin assignment 32 1 2 3 4 5 6 7 8 24 23 22 21 20 19 18 17 nc v rtc v rt av dd3 nc test clk dv dd v rb av ss av ss sel ce nc av ss dv ss 31 30 29 28 27 26 25 9 10111213141516 d 7 (msb) d 6 d 5 d 4 d 3 d 2 d 1 d 0 (lsb) oe av ss opo adin av ss v in2 av dd5 v in1
3 MB40C218 n description of pins the values in parentheses are standard. n precautions on use be sure to ground the pins of av dd5 , av dd3 , dv dd and v rt via high-frequency capacitor. place the high-frequency capacitor as close as possible to the pin. you can minimize the power supply current dissipation due to the internal logic indetermination by making ce to high on power turning on. pin no. symbol description 26 av dd5 analog section power supply (+ 5.00 v) 21 av dd3 a/d converter analog power supply (+ 3 v) 17 dv dd a/d converter digital power supply (+ 3 v) 2, 3, 7, 28, 31 av ss analog power supply ground pin (0 v) 8dv ss digital power supply ground pin (0 v) 9 to 16 d 7 to d 0 digital output pin 18 clk clock input pin 29 adin a/d converter analog input pin. input range is v rb to v rt (0 to 1.5 v) relationship between analog input and digital output is de?ed by test function. 23 v rtc input pin for reference voltage adjustment amp (v rt reference voltage adjustment) v rt is adjusted so that it is 1.5 v with the input pin opened. 22 v rt reference voltage output pin on top side. the voltage fed to v rtc is output. 1v rb reference voltage input pin on bottom side (0v) 25 v in1 input pin 1 for 1:3 gain amp dual input selector for inverting amp 27 v in2 input pin 2 for 1:3 gain amp 30 opo input pin for 1:3 gain (at standby: high impedance) 4 sel toggle input pin for dual input selector for 1:3 gain amp input "l": v in1 , input "h": v in2 test function 5ce input pin for toggling standby function. input high signal brings the standby state to the a/d converter, 1:3 gain amp, and reference voltage adjustment amp. 32 oe output (d 7 to d 0 ) enable input pin. input low signal readies digital output. input high signal induces high-impedance state. 19 test test input pin. 6, 20, 24 n.c. no connection pins
4 MB40C218 n absolute maximum ratings note: stresses above those listed under "absolute maximum ratings" may cause permanent damage to the device. in the normal operations, it is recommended to use the device in the recommended conditions; exceeding the conditions may affect device reliability. n recommended operating conditions parameter symbol rating units min. max. power supply voltage av dd5 , av dd3 , dv dd ?.3 +7.0 v input/output voltage sel, ce , oe clk, test v rb , v rt , v rtc adin, v in1 , v in2 opo ?.3 av dd5 + 0.3 v digital output voltage d 0 to d 7 ?.3 dv dd + 0.3 v storage temperature tstg ?5 +125 c parameter symbol value units min. typ. max. power supply voltage av dd5 4.75 5.00 5.25 v av dd3 2.70 3.00 3.30 v dv dd 2.70 3.00 3.30 v analog conversion range v adin v rb ? rt v analog conversion voltage v rt to v rb 1.05 2.10 v analog reference input voltage: t v rtc 1.05 2.10 v analog reference voltage: b v rb 0v digital "h" level input voltage v ihd 2.1 v digital "l" level input voltage v ild 0.8 v digital input current i id 5 m a clock frequency f clk 0.5 30 mhz "h" level minimum clock pulse width t w + 14.0 ns "l" level minimum clock pulse width t w 14.0 ns operating temperature range ta ?0 75 c
5 MB40C218 n electrical characteristics 1. dc characteristics (1) analog section (av dd5 = 4.75 to 5.25v, av dd3 = dv dd = 2.70 to 3.30v, ta = ?0 to +75 c) (2) digital section (av dd5 = 4.75 to 5.25v, av dd3 = dv dd = 2.70 to 3.30v, ta = ?0 to +75 c) parameter symbol value units min. typ. max. resolution 8 bit linearity error conditional dc precision v rt = 1.5v v rb = 0v le 0.2 0.4 % differential linearity error dle 0.12 0.2 % analog input capacity c adin ?5pf analog supply current av dd5 7.0 ma av dd3 16.0 ma digital supply current dv dd 3.0 ma standby supply current i stb 100 m a 1:3 amp gain dc to 10 mhz gamp 9.0 9.5 10.0 db 10 to 20 mhz 6.0 6.5 db v in1, 2 bias voltage v bi1, 2 ?v dd5 /2 v v in1, 2 input resistance r i1, 2 19 27 35 k w v in1, 2 input capacity c i1, 2 ?5pf 1:3 gain amp group delay (dc to 10 mhz) g-delay 10 ns 1:3 gain amp (? = 4, 5, 7 mhz) 2nd order harmonic distortion h2 ?0 db 3rd order harmonic distortion h3 ?5 db dual power cross talk (? = 7 mhz) ct ?0 db setup voltage with open v rtc v rtco ?v dd3 /2 v v rtc input resistance v rtc ?5k w adin input resistance r adin 4.5 k w parameter symbol value units min. typ. max. digital "h" level output voltage v ohd 2.4 dv dd v digital "l" level output voltage v old 0.4 v digital "h" level output current i ohd ?00 m a digital "l" level output current i old 1.6 ma
6 MB40C218 (3) switching section (av dd5 = 4.75 to 5.25v, av dd3 = dv dd = 2.70 to 3.30v, ta = ?0 to +75 c) n timing diagram n digital output buffer load circuit parameter symbol value unit min. typ. max. maximum conversion rate f s 30 msps digital output delay time t pd 71325ns 3 v 0 v v oh v ol clk adin d 0 to d 7 sanple n sanple n+1 data n? data n? data n 0.5 dv dd t pd 1.5v t w + t w c l = 15 pf dv ss (note) c l includes a stray capacitance of a probe and a fixture. measurement point to the measurement point
7 MB40C218 n test function n digital output code test ce sel oe d 0 d 1 d 2 d 3 d 4 d 5 d 6 d 7 l l h h h x l h l h h x x x x l h x l l l l l h d 0 l d 0 h l d 1 l d 1 l h d 2 l d 2 h l d 3 l d 3 l h d 4 l d 4 h l d 5 l d 5 l h d 6 l d 6 h l d 7 l d 7 l h adin input voltage step digital output code test = ? test = ? v rt v rb 0 127 128 255 0000 0000 0111 1111 1000 0000 1111 1111 1111 1111 1000 0000 0111 1111 0000 0000 high impedance condition: ce = oe = ?
8 MB40C218 n block diagram amp amp 32 1 2 3 4 5 6 7 8 24 23 22 21 20 19 18 17 nc dc control dc 3 v l/h l/h dc3 v v rtc v rt av dd3 nc test clk dv dd v rb av ss av ss sel vb1 ce nc l/h l/h av ss dv ss 31 30 29 28 27 26 25 910111213141516 d 7 (msb) d 6 d 5 d 4 digital out 8 bit 30 msps a/dconverter d 3 d 2 d 1 d 0 (lsb) oe av ss opo adin av ss 500 mv p-p (max.) 500 mv p-p (max.) dc 5 v v in2 av dd5 v in1 9.5 db
9 MB40C218 n ordering information part number package remark MB40C218pfq 32 pin, plastic qfp (fpt-32p-m02)
10 MB40C218 n package dimensions (fpt-32p-m21) 32 pin, plastic qfp +0.20 C0.10 +.008 C.004 +0.05 C0.02 +.002 C.001 (.020.008) (.004.004) 0.100.10 0.500.20 0 10 details of "a" part 32 25 24 17 16 9 8 1 "a" 1.50 .059 0.127 .005 1 pin index 0.10(.004) m 0.16(.006) (.012.004) nom (.315) ref (.220) 8.00 5.60 0.300.10 0.80(.0315)typ 7.000.10(.276.004)sq 9.000.20(.354.008)sq 1994 fujitsu limited f32032s-1c-2 c dimensions in mm (inch).
12 MB40C218 all rights reserved. the contents of this document are subject to change without notice. customers are advised to consult with fujitsu sales representatives before ordering. the information and circuit diagrams in this document presented as examples of semiconductor device applications, and are not intended to be incorporated in devices for actual use. also, fujitsu is unable to assume responsibility for infringement of any patent rights or other rights of third parties arising from the use of this information or circuit diagrams. fujitsu semiconductor devices are intended for use in standard applications (computers, office automation and other office equipment, industrial, communications, and measurement equipment, personal or household devices, etc.). caution: customers considering the use of our products in special applications where failure or abnormal operation may directly affect human lives or cause physical injury or property damage, or where extremely high levels of reliability are demanded (such as aerospace systems, atomic energy controls, sea floor repeaters, vehicle operating controls, medical devices for life support, etc.) are requested to consult with fujitsu sales representatives before such use. the company will not be responsible for damages arising from such use without prior approval. any semiconductor devices have inherently a certain rate of failure. you must protect against injury, damage or loss from such failures by incorporating safety design measures into your facility and equipment such as redundancy, fire protection, and prevention of over-current levels and other abnormal operating conditions. if any products described in this document represent goods or technologies subject to certain restrictions on export under the foreign exchange and foreign trade control law of japan, the prior authorization by japanese government should be required for export of those products from japan. fujitsu limited for further information please contact: japan fujitsu limited corporate global business support division electronic devices kawasaki plant, 4-1-1, kamikodanaka nakahara-ku, kawasaki-shi kanagawa 211-88, japan tel: (044) 754-3753 fax: (044) 754-3329 north and south america fujitsu microelectronics, inc. semiconductor division 3545 north first street san jose, ca 95134-1804, u.s.a. tel: (408) 922-9000 fax: (408) 432-9044/9045 europe fujitsu mikroelektronik gmbh am siebenstein 6-10 63303 dreieich-buchschlag germany tel: (06103) 690-0 fax: (06103) 690-122 asia paci? fujitsu microelectronics asia pte. limited #05-08, 151 lorong chuan new tech park singapore 556741 tel: (65) 281 0770 fax: (65) 281 0220 f9703 ? fujitsu limited printed in japan

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