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| HMC675LP3E v00.1110 10 GHz LATCHED COMPARATOR WITH RSCML OUTPUT STAGE Features propagation Delay: 100 ps overdrive & slew rate Dispersion: 10 ps minimum pulse Width: 60 ps resistor programmable Hysteresis Differential Latch control active Gain: 43 dB power Dissipation: 100 mW rspEcL and rsEcL Versions available 16 Lead 3x3mm smt package: 9mm2 1 comparators - smt Typical Applications the HMC675LP3E is ideal for: * atE applications * High speed Instrumentation * Digital receiver systems * pulse spectroscopy * High speed trigger circuits * clock & Data restoration Functional Diagram General Description the HMC675LP3E is a siGe monolithic, ultra fast comparator which features reduced swing cmL output drivers and latch inputs. the comparator supports 10 Gbps operation while providing 100 ps propagation delay and 60 ps minimum pulse width with 0.2 ps rms random jitter (rJ). overdrive and slew rate dispersion are typically 10 ps, making the device ideal for a wide range of applications from atE to broadband communications. the reduced swing cmL output stage is designed to directly drive 400 mV into 50 ohms terminated to GND. the HMC675LP3E features high speed latch and programmable hysteresis and may be configured to operate in either latch mode, or as a tracking comparator. Electrical Specifications, TA = +25 C Vcci= +3.3 V, Vcco = 0 V, Vee = -3 V, VTERM = 0 parameter Input Voltage range Input Differential Voltage Input offset Voltage Input offset Voltage, temperature coefficient Input Bias current Input Bias current temperature coefficient Input offset current Input Impedance common mode Input Impedance Differential Input Impedance active Gain common mode rejection ratio Hysteresis rhys = conditions min. -2 -1.75 5 15 15 50 4 50 350 15 43 80 1 typ. max 2 1.75 Units V V mV V / c ua na / c a K K dB dB mV 1-1 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 HMC675LP3E v00.1110 10 GHz LATCHED COMPARATOR WITH RSCML OUTPUT STAGE Latch Enable Characteristics parameter Latch Enable Input Impedance Latch to output Delay, tpDoL , tpDoH Latch minimum pulse Width, tpL Latch Enable Input range Latch setup time, t s Latch Hold time, tH conditions Each pin VoD = 200 mV VoD = 200 mV VoD = 200 mV VoD = 200 mV 1.6 45 -42 min. typ. 8 85 20 2.4 max Units K ps ps V ps ps 1 comparators - smt 1-2 DC Output Characteristics, with 50 to GND parameter output Voltage High Level, Voh output Voltage Low Level, Vol output Voltage Differential swing conditions min. -10 -420 410 -400 400 typ. max 0 -380 380 Units mV mV mV AC Performance parameter propagation Delay - tpD, tpDL , tpDH propagation Delay, temperature coefficient propagation Delay skew (rising to Falling transition) VoD Dispersion tpd vs. common mode Dispersion, -1.75V parameter Input supply current, Icci output supply current, Icco Vee current, lee power Dissipation, pd psrr, Vcci psrr, Vee conditions min. typ. 9 8 24 100 35 35 max Units ma ma ma mW dB dB Note 1: Equivalent Input Bandwidth is calculated with the following formula: Bweq=0.22/ (trcomp2 -trIN 2) where trIN is the 20%/80% transition time of a quasi-Gaussian signal applied to the comparator input, and trcomp is the effective transition time digitized by the comparator. 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 HMC675LP3E v00.1110 10 GHz LATCHED COMPARATOR WITH RSCML OUTPUT STAGE Propagation Delay vs. Common Mode[1] 15 12.5 10 1 comparators - smt Dispersion vs. Overdrive Voltage 11 9 DISPERSION (ps) 7 5 3 1 -1 0 10 20 30 40 50 60 70 80 90 100 OVERDRIVE VOLTAGE (mV) Rising Edge Falling Edge tPD 7.5 5 2.5 0 Rising Edge Falling Edge -2.5 -5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 COMMON MODE VOLTAGE (mV) Output Voltage vs. Temperature 0.1 0 Comparator Hysteresis vs. Rhys Control Resistor 20 16 HYSTERESIS (mV) 46 59 72 85 -0.1 VOLTAGE (V) -0.2 -0.3 -0.4 -0.5 -0.6 -45 VOH VOL 12 8 4 0 -32 -19 -6 7 20 33 10 100 1000 10000 TEMPERATURE (C) RESISTANCE (Ohm) Eye Diagram [1] Vcci = 3.3V, Vcc0 = 0, Vee = -3V, VtErm = 0 1-3 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 HMC675LP3E v00.1110 10 GHz LATCHED COMPARATOR WITH RSCML OUTPUT STAGE Timing Diagram 1 comparators - smt Timing Descriptions symbol tpDH tpDL tpLDH tpLDL tH tpL ts tr tr VoD timing Input to output high delay Input to output low delay Latch enable to output high delay Latch enable to output low delay minimum hold time minimum latch enable pulse width minimum setup time output rise time output fall time Voltage overdrive Description propagation 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. propagation 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. propagation 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. propagation 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. minimum 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. minimum time that the latch enable signal must be high to acquire an input signal change. minimum 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. amount of time required to transition from a low to a high output as measured at the 20% and 80% points. amount of time required to transition from a high to a low output as measured at the 20% and 80% points. Difference between the input voltages Va and VB- 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 1-4 HMC675LP3E v00.1110 10 GHz LATCHED COMPARATOR WITH RSCML OUTPUT STAGE 1 comparators - smt Absolute Maximum Ratings Input supply Voltage (Vcci to GND) output supply Voltage (Vcco to GND) positive supply Differential (Vcci - Vcco) Input Voltage Differential Input Voltage Input Voltage, Latch Enable applied Voltage (HYs) maximum Input current output current Junction temperature continuous pdiss (t = 85c) (Derate 43.5 mW/c above 85c) thermal resistance (rth) (Junction to Lead) storage temperature operating temperature EsD sensitivity (HBm) -0.5V to +4V -0.5V to +4V -0.5V to +3V -2V to +2V -2V to +2V -0.5V to Vcci +0.5V Vee to GND 1 ma 20 ma 125c 1.74 W 23 c/W -65c to +150c -40c to +85c class 1a ELEctrostatIc sENsItIVE DEVIcE oBsErVE HaNDLING prEcaUtIoNs Outline Drawing NotEs: 1. LEaDFramE matErIaL: coppEr aLLoY 2. DImENsIoNs arE IN INcHEs [mILLImEtErs] 3. LEaD spacING toLEraNcE Is NoN-cUmULatIVE 4. paD BUrr LENGtH sHaLL BE 0.15mm maXImUm. paD BUrr HEIGHt sHaLL BE 0.05mm maXImUm. 5. pacKaGE Warp sHaLL Not EXcEED 0.05mm. 6. aLL GroUND LEaDs aND GroUND paDDLE mUst BE soLDErED to pcB rF GroUND. 7. rEFEr to HIttItE appLIcatIoN NotE For sUGGEstED LaND pattErN. Package Information part Number HMC675LP3E package Body material roHs-compliant Low stress Injection molded plastic Lead Finish 100% matte sn msL rating msL1 [1] package marking [2] H675 XXXX [1] max peak reflow temperature of 260 c [2] 4-Digit lot number XXXX 1-5 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 HMC675LP3E v00.1110 10 GHz LATCHED COMPARATOR WITH RSCML OUTPUT STAGE Pin Descriptions pin Number 1 2 3 4 5, 16 Function Vtp INp INN VtN Vcci Description termination resistor return pin for Vp Input. Non-Inverting analog input Inverting analog input termination resistor return pin for Vn input positive supply voltage input stage. Interface schematic 1 comparators - smt 1-6 6 LE Latch enable bar input pin, inverting side. 7 LE Latch enable bar input pin, non-inverting side. 8 9, 12 N/c Vcco pin is not connected inside the package. connect package pin to GND for improved noise. positive supply voltage for the output stage. Inverting output. Q bar is at logic low if the analog voltage at the non-inverting input, INp, is greater than the analog voltage at the inverting input, INN, provided that the comparator is in compare mode. refer to the LE/LE bar descriptions (pins 6, 7) for more information. Non-inverting output. Q is at logic high if the analog voltage at the non-inverting input, INp, is greater than the analog voltage at the inverting input, INN, provided that the comparator is in compare mode. refer to the LE/LE bar descriptions (pins 6, 7) for more information. Hysteresis control pin. this pin should be left disconnected for zero hysteresis. connect to Vee with a resistor to add the desired amount of hysteresis. refer to Figure on page 6-34. to determine the correct sizing of rhys hysteresis control resistor. Negative power supply, -3V. 10 Q 11 Q 14 HYs 13 Vee 15 rtN return for EsD protection. package Base Exposed paddle must be connected to Vee. 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 HMC675LP3E v00.1110 10 GHz LATCHED COMPARATOR WITH RSCML OUTPUT STAGE 1 comparators - smt Evaluation PCB Front Side Back Side 1-7 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 HMC675LP3E v00.1110 10 GHz LATCHED COMPARATOR WITH RSCML OUTPUT STAGE List of Materials for Evaluation PCB 125932 Item J1 J2 - J7 J8 Jp1, Jp2 c1 - c3, c5, c6, c8 - c10 c4, c7, c11 c11 - c13 tp1 - tp4 U1 pcB Description 8 pos. Vertical tIN 2.92 mm 40 GHz Jack terminal strip, single row 3 pin smt 2 pos. Vertical tIN 100 pF capacitor, 0402 pkg. 330 pF capacitor, 0402 pkg. 4.7 F tantalum Dc pin, swage mount HMC675LP3E comparator 125929 Evaluation pcB [1] 1 comparators - smt 1-8 the circuit board used in the application should use rF circuit design techniques. signal lines should have 50 ohm 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 rF grounding to 25 GHz. the evaluation circuit board shown is available from Hittite upon request. [1] reference this number when ordering complete evaluation pcB [2] circuit Board material: rogers 4350 or arlon 25Fr Application Circuit 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 |
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