for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com 1 - 1 1 comparators - smt t he h mc 676l p 3e is a s ige monolithic, ultra fast comparator which features reduced swing e c l output drivers and latch inputs. t he comparator supports 10 gbps operation while providing 100 ps propagation delay and 60 ps minimum pulse width with 0.2 ps rms random jitter ( r j). o verdrive and slew rate dispersion are typically 10 ps, making the device ideal for a wide range of applications from at e to broadband communications. t he reduced swing e c l output stage is designed to directly drive 400 mv into 50 o hms terminated to -2v. t he h mc 676l p 3e features high speed latch and programmable hysteresis and may be confgured to operate in either latch mode, or as a tracking comparator. general description HMC676LP3E features functional diagram p ropagation delay: 100 ps o verdrive & s lew r ate dispersion: 10 ps m inimum p ulse width: 60 ps r esistor p rogrammable hysteresis differential latch c ontrol a ctive gain: 45 db p ower dissipation: 120 mw rscm l and rsp e c l versions a vailable 16 lead 3x3mm smt p ackage: 9mm 2 typical applications t he h mc 676l p 3e is ideal for: ? at e a pplications ? high s peed instrumentation ? digital r eceiver s ystems ? p ulse s pectroscopy ? high s peed t rigger c ircuits ? c lock & data r estoration electrical specifcations t a = +25c [1] vcci= +3.3v, vcco = 0v, vee = -3v, v term = -2v p arameter c onditions m in. t yp. m ax units input voltage r ange -2 2 v input differential voltage -1.75 1.75 v input o ffset voltage 5 mv input o ffset voltage, t emperature c oefficient 15 v / c input bias c urrent 15 u a input bias c urrent t emperature c oefficient 50 n a / c input o ffset c urrent 4 a input impedance 50 c ommon m ode input impedance 350 k differential input impedance 15 k a ctive gain 45 db c ommon m ode r ejection r atio 80 db hysteresis r hys = 1 mv 10 ghz latched comparator with rsecl output stage v00.1110
for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com comparators - smt 1 1 - 2 HMC676LP3E v00.1110 10 ghz latched comparator with rsecl output stage latch enable characteristics p arameter c onditions m in. t yp. m ax units latch enable input impedance each p in 8 k latch to o utput delay, t p d o l , t p d o h v o d = 200 mv 85 ps latch m inimum p ulse width, t p l v o d = 200 mv 20 ps latch enable input r ange v o d = 200 mv 1.6 2.4 v latch s etup t ime, t s v o d = 200 mv 45 ps latch hold t ime, t h -42 ps dc output characteristics, with 50 to vcco - 2v p arameter c onditions m in. t yp. m ax units o utput voltage high level, voh -0.89 -0.89 -0.95 v o utput voltage low level, vol -1.21 -1.25 -1.35 v o utput voltage differential s wing 320 350 400 mv ac performance p arameter c onditions m in. t yp. m ax units p ropagation delay - t p d , t p dl , t p dh v o d = 500 mv 70 100 130 ps p ropagation delay, t emperature c oefficient 0.45 ps / c p ropagation delay s kew ( r ising to falling t ransition) v o d - 500 mv 10 ps v o d dispersion 50mv < v o d < 1v 10 ps t pd vs. c ommon m ode dispersion, -1.75v for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com 1 - 3 1 comparators - smt HMC676LP3E v00.1110 10 ghz latched comparator with rsecl output stage dispersion vs. overdrive voltage propagation delay vs. common mode output voltage vs. temperature eye diagram comparator hysteresis vs. rhys control resistor -1 1 3 5 7 9 11 0 10 20 30 40 50 60 70 80 90 100 rising edge falling edge dispersion (ps) overdrive voltage (mv) -5 -2.5 0 2.5 5 7.5 10 12.5 15 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 rising edge falling edge t pd common mode voltage (mv) -1.4 -1.2 -1 -0.8 -0.6 -45 -32 -19 -6 7 20 33 46 59 72 85 voh vol voltage (volts) temperature (c) 0 4 8 12 16 20 10 100 1000 10000 hysteresis (mv) resistance (ohm)
for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com comparators - smt 1 1 - 4 HMC676LP3E v00.1110 10 ghz latched comparator with rsecl output stage timing diagram s ymbol t iming description t p dh input to output high delay p ropagation delay measured from the time the input signal crosses the reference ( the input offset voltage) to the 50% point of an output low-to-high transition. t p dl input to output low delay p ropagation delay measured from the time the input signal crosses the reference ( the input offset voltage) to the 50% point of an output high-to-low transition. t p ldh latch enable to output high delay p ropagation delay measured from the 50% point of the latch enable signal low-to-high transition to the 50% point of an output low-to-high transition. t p ldl latch enable to output low delay p ropagation delay measured from the 50% point of the latch enable signal low-to-high transition to the 50% point of an output high-to-low transition. t h m inimum hold time m inimum time after the negative transition of the latch enable signal that the input signal must remain unchanged to be acquired and held at the outputs. t p l m inimum latch enable pulse width m inimum time that the latch enable signal must be high to acquire an input signal change. t s m inimum setup time m inimum time before the negative transition of the latch enable signal that an input signal change must be present to be acquired and held at the outputs. t r o utput rise time a mount of time required to transition from a low to a high output as measured at the 20% and 80% points. t r o utput fall time a mount of time required to transition from a high to a low output as measured at the 20% and 80% points. v o d voltage overdrive difference between the input voltages v a and v b- timing descriptions
for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com 1 - 5 1 comparators - smt HMC676LP3E v00.1110 10 ghz latched comparator with rsecl output stage absolute maximum ratings ele ctrostat ic s en s i t ive devi c e o b s e r ve h a ndling pr e ca u t i o n s input s upply voltage (vcci to gnd) -0.5v to +4v o utput s upply voltage (vcco to gnd) -0.5v to +4v p ositive s upply differential (vcci - vcco) -0.5v to +3v input voltage -2v to +2v differential input voltage -2v to +2v input voltage, latch enable -0.5v to vcci +0.5v a pplied voltage (hy s ) vee to gnd m aximum input c urrent 1 m a o utput c urrent 40 m a s torage t emperature -65 c to +150 c junction t emperature 125 c c ontinuous p diss ( t = 85 c ) (derate 43.5 mw/ c above 85 c ) 1.74 w t hermal r esistance ( r th) (junction to lead) 23 c /w o perating t emperature -40 c to +85 c e s d s ensitivity (hb m ) c lass 1 a outline drawing n ot e s : 1. le a df ram e mat e r i a l: copp e r a ll o y 2. di m en s i o n s ar e in in c he s [ m illi m e t e rs ] 3. le a d spac ing to le ra n c e i s n o n- c u m ul at ive 4. pa d bu rr leng t h s h a ll be 0.15mm ma xi m u m . pa d bu rr heigh t s h a ll be 0.05mm ma xi m u m . 5. pac k a ge w arp s h a ll n ot ex c eed 0.05mm. 6. a ll g ro und le a d s a nd g ro und pa ddle m u st be so lde r ed to pc b r f g ro und. 7. r efe r to hi tt i t e app li cat i o n n ot e f or s ugge st ed l a nd patt e r n. p art number p ackage body m aterial lead finish ms l r ating p ackage m arking [2] h mc 676l p 3e r oh s -compliant low s tress injection m olded p lastic 100% matte s n ms l1 [1] h676 xxxx [1] m ax peak refow temperature of 260 c [2] 4-digit lot number xxxx package information
for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com comparators - smt 1 1 - 6 HMC676LP3E v00.1110 10 ghz latched comparator with rsecl output stage p in number function description interface s chematic 1 v tp t ermination resistor return pin for vp input. 2 in p non-inverting analog input 3 inn inverting analog input 4 v t n t ermination resistor return pin for vn input 5, 16 vcci p ositive supply voltage input stage. 6 le latch enable bar input pin, inverting side. 7 le latch enable input pin, non-inverting side. 8 n/ c p in is not connected inside the package. c onnect package pin to gnd for improved noise. 9, 12 vcco p ositive supply voltage for the output stage. 10 q inverting output. q bar is at logic low if the analog voltage at the non-inverting input, in p , is greater than the analog voltage at the inverting input, inn, provided that the comparator is in compare mode. r efer to the le/le bar descriptions (pins 6, 7) for more information. 11 q non-inverting output. q is at logic high if the analog voltage at the non-inverting input, in p , is greater than the analog voltage at the inverting input, inn, provided that the comparator is in compare mode. r efer to the le/le bar descriptions (pins 6, 7) for more information. 14 hy s hysteresis c ontrol pin. t his pin should be left disconnected for zero hysteresis. c onnect to vee with a resistor to add the desired amount of hysteresis. r efer to figure on page 6-42. to determine the correct sizing of r hys hysteresis control resistor. 13 vee negative power supply, -3v. 15 rt n r eturn for e s d protection. p ackage base exposed paddle must be connected to vee. pin descriptions
for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com 1 - 7 1 comparators - smt evaluation pcb HMC676LP3E v00.1110 10 ghz latched comparator with rsecl output stage evaluation pcb front side back side
for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com comparators - smt 1 1 - 8 HMC676LP3E v00.1110 10 ghz latched comparator with rsecl output stage t he circuit board used in the application should use r f circuit design techniques. s ignal lines should have 50 o hm impedance while the package ground leads should be connected directly to the ground plane similar to that shown. a sufficient number of via holes should be used to connect the top and bottom ground planes in order to provide good r f grounding to 25 ghz. t he evaluation circuit board shown is available from hittite upon request. item description j1 8 p os. vertical t in j2 - j7 2.92 mm 40 ghz jack j8 t erminal s trip, s ingle r ow 3 p in smt j p 1, j p 2 2 p os. vertical t in c 1 - c 3, c 5, c 6, c 8 - c 10 100 pf c apacitor, 0402 p kg. c 4, c 7, c 11 330 pf c apacitor, 0402 p kg. c 11 - c 13 4.7 f t antalum tp 1 - tp 4 d c p in, s wage m ount u1 h mc 676l p 3e c omparator pc b 125929 evaluation pc b [1] r eference this number when ordering complete evaluation pc b [2] c ircuit board m aterial: r ogers 4350 or a rlon 25f r list of materials for evaluation pcb 125932 [1] application circuit
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