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HA17008RP/rfp 8-bit multiplying digital to analog converter description the ha17008r series are 8-bit monolithic d/a converters which have built in, a reference current amplifier, an r-2r ladder resistor, and 8 high speed current switches. by setting the reference voltage and resistance, the maximum output current can be freely varied in response to the application. the reference current is distributed to the current value for each bit by the r-2r ladder resistor, and the maximum output current is 255/256 of the reference current. for example, if the input reference current is 2.0 ma, then the maximum available output current is 1.992 ma. applications for the ha17008r are wide ranging, and include crt displays, stepping motor control, programmable power supplies, audio equipment, and attenuators. features linearity of ?.19% (?/2 lsb) guaranteed. the settling time is short, 85 ns (typ), enabling rapid conversions. low power dissipation has been reduced: 135 mw typ. compatible with ttl and cmos logic. the standard supply voltage is v cc = +15.0 v, v ee = ?5.0 v. a wide output voltage range can be provided. from ?0 v to +18 v. ordering information type no. package HA17008RP dp-16 ha17008rfp fp-16da
HA17008RP/rfp 2 pin arrangement v ee i o i o (msb) a 1 v ref (+) v ref (? compensation v cc threshold control (top view) 3 2 1 4 5 6 7 8 14 15 16 13 12 1 1 10 9 a 2 a 3 a 4 a 8 (lsb) a 7 a 6 a 5 block diagram 5 67 8 9 10 11 12 1 14 15 16 13 2 4 ref. current amp. current switches bias circuit r-2r ladder resistor compensation v cc i o i o v ee thc v ref (+) v ref (? a 1 a 2 a 3 a 4 a 5 a 6 a 7 a 8 msb lsb 3
HA17008RP/rfp 3 functions reference differential amplifier and phase compensation the reference amplifier is a circuit which converts the reference voltage applied to pin 14 through the external resistor r 14 from a voltage to a current. the converted current is supplied to each bit by a current mirror and the ladder resistor. note that this should be used with the polarity of the current flowing in to pin 14. the reference voltage source provides all of the current flowing into pin 14. also, even removing the resistor r 15 will have a minimal influence on precision and temperature drift. to preserve an appropriate value of the phase margin, it is necessary to increase the value of the phase compensation capacitance as r 14 is increased. for example, if r 14 is 1 k , 2.5 k , or 5 k , the minimum capacitances should be 15 pf, 37 pf, and 75 pf, respectively. the capacitor is connected to v ee . if high impedance is required in the reference current source, connect r 14 to ground and connect r 15 to the negative reference voltage. (refer figure 2.) if a dc reference voltage is used, a bypass capacitor should be inserted in the reference voltage source to reduce compounded hum and noise. we cannot recommend the use of noisy 5 v logic power supplies. when a logic control 5 v power supply of good stability is used for the reference supply, connect a resistor to the reference supply and connect a 0.1 ? capacitor between the reference supply and the resistor contact. when pin 14 is controlled by a high impedance such as a fixed current supply, phase compensation will not be possible with the above method. therefore, provide adequate phase compensation in the frequency band of the fixed current supply. 5 6 7 8 9 10 11 12 14 15 2 4 16 13 3 ha17008r v v c i o r l (+) v ref cc ee a 1 a 2 a 3 a 4 a 5 a 6 a 7 a 8 r = r 14 15 r 14 r 15 figure 1 positive reference potential application example
HA17008RP/rfp 4 5 6 7 8 9 10 11 12 14 15 2 4 16 13 3 ha17008r c i o r l (? v ref v cc v ee a 1 a 2 a 3 a 4 a 5 a 6 a 7 a 8 r = r 14 15 r 14 r 15 figure 2 negative reference potential application example 8 bit counter ha17008r 12 bit d/a ha17741 error (1 v = 1%) 50 k w 5.0 k w 100 w r 950 w 0.1 f v ref 2.0 v v cc lsb msb 5 6 7 8 9 10 1 1 12 15 16 3 2 1 1 k w c v ee 14 13 + 4 a 1 a 2 a 3 a 4 a 5 a 6 a 7 a 8 a 9 a 10 a 11 a 12 14 figure 3 non linearity measurement circuit
HA17008RP/rfp 5 ha17008r 0.01 f 10 v 0.7 v 5 k w 2.7 v 5 k w v cc 0.1 f 0.1 f 1 k w 0.1 f 50 f 1 k w 2 k w 1 f 100 k w ?5 v 15 k w 0.1 f 5 v v ee 0.1 f settling time test point 5 6 7 8 9 10 1 1 12 13 3 14 15 1 2 4 16 figure 4 settling time test circuit operation example ha17008r r v cc v ee 5 6 7 8 9 10 1 1 12 13 3 14 15 4 2 15 pf + 2 3 6 v ref 16 ha17741 v ref = +2 v r = r = 1.0 k w r = 5.0 k w ? current to voltage converter using an op-amp logical output v v = v ref (r ) 2 + 4 + 8 + 16 + 32 + 64 + 128 + 256 when v ref , r 14 , and r 0 are determined, the output voltage becomes 9.961 v in case of all-high input bits. 1 k w 2 v (5 k w ) 2 1 + 4 1 + 8 1 + 16 1 + 32 1 + 64 1 + 128 1 + 256 1 14 r 15 r 0 v 0 0 0 r 14 0 a 1 a 2 a 3 a 4 a 5 a 6 a 7 a 8 v = 0 dc 14 15 0 a 1 a 2 a 3 a 4 a 5 a 6 a 7 a 8
HA17008RP/rfp 6 absolute maximum ratings (ta = 25?) item symbol rating unit power supply voltage v cc +18 v v ee ?8 v digital input voltage v 5 to v 12 v ee to v ee + 36 v v reference current i 14 5ma reference amplifier input voltage range v ref v cc to v ee v power dissipation p t 500* 1 mw operating temperature topr ?0 to +75 c storage temperature tstg ?5 to +125 c note: 1. this is the allowable value up to ta = 65 c for HA17008RP. derate by 8.3mw/ c above that temperature. in case of ha17008rfp, see notes on sop package usage in reliability section.
HA17008RP/rfp 7 electrical characteristics (v cc = 15 v, v ee = ?5 v, i ref = 2 ma, v thc = 0 v, ta = 25?) item symbol min typ max unit test conditions nonlinearity nl 0.19 %fs settling time ( 1/2 lsb) t s 85 150 ns all bits off to on propagation delay time t plh , t phl ?5 60 ns full scale current temperature dependence t cifs 10 50 ppm/ c digital input level v ih 2 v v il 0.8 v digital input current (msb) i ih 0.002 10 m av ih = 5 v i il ?0 ? m av il = 0.8 v reference input bias current i 15 ? ? m a output current range i f5r 0 2 2.1 ma v ee = ? v 0 2 4.2 ma v ee = ? to ?8 v full scale output current i fs 1.94 1.99 2.04 ma vref = 10 v, r 14 , r 15 = 5 k w zero scale output current i z ? 2 m a all bits low output voltage range v oc ?0 +18 v d i fs 1/2 lsb reference current slew rate dl/dt 4 8 ma/ m sr ref 200 w , c c = 0pf power supply current i cc 1.8 3.8 ma v cc = 5 v, i ref = 1 ma, i ee ?.8 ?.7 ma v ee = ? v i cc 1.9 3.8 ma v cc = 5 v, i ref = 2 ma, i ee ?.8 ?.8 ma v ee = ?5 v i cc 2.1 3.8 ma v cc = 15 v, i ref = 2 ma, i ee ?.8 ?.9 ma v ee = ?5 v power supply voltage v cc 4.5 15 18 v i ref = 1 ma v ee ?8 ?5 ?.5 v differential full scale output current difference i fss ? 1+8 m ai fs4 ?i fs2 digital input voltage range v is ?0 +18 v v thr = ?0 to +13.5 v threshold voltage range v thr ?0 0 13.5 v v thr @ v thc +1.3 v power supply voltage dependence p ss i fs + ?00 100 ppmfs/%v v cc = ?.5 to ?8 v, i ref = 1 ma p ss i fs ?00 100 ppmfs/%v v ee = ?.5 to ?8v, i ref = 1 ma
HA17008RP/rfp 8 standard characteristics curves output current vs. digital input voltage characteristics digital input voltage v in (v) output current i out (ma) 2 1 0 034 1 2 t a = 25 c t a = ?0 c v cc = 5 v v ee = ?5 v i ref = 2.000 ma t a = 75 c 2.5 2.0 1.5 1.0 0.5 0 ?5 ?0 ? 0 5 10 15 output current vs. output voltage characteristics output current i out (ma) output voltage v out (v) v ee = ?5 v v ee = ? v i ref = 2 ma i ref = 1 ma 4 3 2 1 0 01234 output current vs. reference input current characteristics output current i out (ma) reference input current i ref (ma) max. value at v ee = ? v power supply current vs. power supply voltage characteristics (1) power supply voltage v cc (v) power supply current i cc , i ee (ma) 8 6 4 2 0 12 4 5 7 i ee i cc 36 power supply current vs. power supply voltage characteristics (2) power supply voltage v ee (v) power supply current i cc , i ee (ma) 8 6 4 2 0 0 5 ?0 ?5 ?0 i ee i cc i ref = 2 ma i ref = 2 ma
HA17008RP/rfp 9 standard characteristics curves (cont) digital input current vs. digital input voltage characteristics 0.4 0.3 0.2 0.1 0 0123 digital input voltage v in (v) digital input current i in (ma) v cc = 5 v v ee = ?5 v i ref = 2 ma power supply current vs. ambient temperature characteristics 8 6 4 2 0 ?0 ?0 0 20 40 60 80 90 power supply current i cc , i ee (ma) ambient temperature t a ( c) i ref = 2 ma v ee = ?5 v v cc = 15 v
HA17008RP/rfp 10 package dimensions hitachi code jedec eiaj mass (reference value) dp-16 conforms conforms 1.07 g unit: mm 6.30 19.20 16 9 8 1 1.3 20.00 max 7.40 max 7.62 0.25 + 0.13 ?0.05 2.54 0.25 0.48 0.10 0.51 min 2.54 min 5.06 max 0 ?15 1.11 max hitachi code jedec eiaj mass (reference value) fp-16da conforms 0.24 g unit: mm *dimension including the plating thickness base material dimension *0.22 0.05 *0.42 0.08 0.12 0.15 m 2.20 max 5.5 10.06 0.80 max 16 9 1 8 10.5 max + 0.20 ?0.30 7.80 0.70 0.20 0 ?8 0.10 0.10 1.15 1.27 0.40 0.06 0.20 0.04
HA17008RP/rfp 11 cautions 1. hitachi neither warrants nor grants licenses of any rights of hitachi? or any third party? patent, copyright, trademark, or other intellectual property rights for information contained in this document. hitachi bears no responsibility for problems that may arise with third party? rights, including intellectual property rights, in connection with use of the information contained in this document. 2. products and product specifications may be subject to change without notice. confirm that you have received the latest product standards or specifications before final design, purchase or use. 3. hitachi makes every attempt to ensure that its products are of high quality and reliability. however, contact hitachi? sales office before using the product in an application that demands especially high quality and reliability or where its failure or malfunction may directly threaten human life or cause risk of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation, traffic, safety equipment or medical equipment for life support. 4. design your application so that the product is used within the ranges guaranteed by hitachi particularly for maximum rating, operating supply voltage range, heat radiation characteristics, installation conditions and other characteristics. hitachi bears no responsibility for failure or damage when used beyond the guaranteed ranges. even within the guaranteed ranges, consider normally foreseeable failure rates or failure modes in semiconductor devices and employ systemic measures such as fail- safes, so that the equipment incorporating hitachi product does not cause bodily injury, fire or other consequential damage due to operation of the hitachi product. 5. this product is not designed to be radiation resistant. 6. no one is permitted to reproduce or duplicate, in any form, the whole or part of this document without written approval from hitachi. 7. contact hitachi? sales office for any questions regarding this document or hitachi semiconductor products. hitachi, ltd. semiconductor & integrated circuits. nippon bldg., 2-6-2, ohte-machi, chiyoda-ku, tokyo 100-0004, japan tel: tokyo (03) 3270-2111 fax: (03) 3270-5109 copyright ? hitachi, ltd., 1998. all rights reserved. printed in japan. hitachi asia pte. ltd. 16 collyer quay #20-00 hitachi tower singapore 049318 tel: 535-2100 fax: 535-1533 url northamerica : http:semiconductor.hitachi.com/ europe : http://www.hitachi-eu.com/hel/ecg asia (singapore) : http://www.has.hitachi.com.sg/grp3/sicd/index.htm asia (taiwan) : http://www.hitachi.com.tw/e/product/sicd_frame.htm asia (hongkong) : http://www.hitachi.com.hk/eng/bo/grp3/index.htm japan : http://www.hitachi.co.jp/sicd/indx.htm hitachi asia ltd. taipei branch office 3f, hung kuo building. no.167, tun-hwa north road, taipei (105) tel: <886> (2) 2718-3666 fax: <886> (2) 2718-8180 hitachi asia (hong kong) ltd. group iii (electronic components) 7/f., north tower, world finance centre, harbour city, canton road, tsim sha tsui, kowloon, hong kong tel: <852> (2) 735 9218 fax: <852> (2) 730 0281 telex: 40815 hitec hx hitachi europe ltd. electronic components group. whitebrook park lower cookham road maidenhead berkshire sl6 8ya, united kingdom tel: <44> (1628) 585000 fax: <44> (1628) 778322 hitachi europe gmbh electronic components group dornacher stra b e 3 d-85622 feldkirchen, munich germany tel: <49> (89) 9 9180-0 fax: <49> (89) 9 29 30 00 hitachi semiconductor (america) inc. 179 east tasman drive, san jose,ca 95134 tel: <1> (408) 433-1990 fax: <1>(408) 433-0223 for further information write to:

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