HMC974LC3C

HMC974LC3C v00.0110 10 GHz, HIGH SPEED WINDOW COMPARATOR Features Propagation delay: 88 ps Overdrive & Slew Rate Dispersion: 20 ps Minimum Detectable Pulse Width: 60 ps Differential Latch Control Power Dissipation: 240 mW 16 Lead 3x3mm SMT Package: 9mm 2 Typical Applications The HMC974LC3C is ideal for: • ATE Applications 7 COMPARATORS - SMT • High Speed Instrumentation • Clock and Data Restoration • Semiconductor Test Systems • EW Systems - Threshold Detection Functional Diagram General Description The HMC974LC3C is a SiGe monolithic, ultra fast window comparator with level latched output driver with reduced swings. The window comparator is based on the HMC674LC3C single comparator and incorporates two such comparators and additional output logic. Three output ports detect whether an analog input signal is above, below or between two reference levels supplied at its input as shown on the timing diagram herein. The outputs are single-ended negative logic. Incorporating two proven comparators at the input provides good DC and dynamic matching and reduces the input capacitance. The reduced swing output stages are designed to directly drive 400 mV into 50 Ohms terminated to a voltage Vterm = Vcco-2 V. HMC974LC3C features high speed latches that can either be enabled to latch the output data, or can be left in the transparent mode to implement a tracking window comparator. Electrical Specifications, TA = +25 °C NS = -3V, PS = +3.3V, Vcco = +2V, VTERM = 0V, VCM = 0V, VOD = 50mV [1] Parameter DC INPUT CHARACTERISTICS Offset voltage Bias current Differential voltage (max) Input impedance WIN to WIT Input impedance RT to WIT Input impedance RB to WIT Common Mode Input Voltage Range Input Capacitance -1.5 1 WIT Termination Open -10 -30 -2 50 50 50 1.5 ±4 20 10 30 2 mV uA V Ohms Ohms Ohms V pF Conditions Min. Typ. Max Units 7-1 For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC974LC3C v00.0110 10 GHz, HIGH SPEED WINDOW COMPARATOR Electrical Specifications, (continued) Parameter LATCH ENAbLE CHARACTERISTICS LE / LE "L" LE / LE “H” LE / LE Impedance (if not driven the device is unlatched) DC OUTPUT CHARACTERISTICS Output Voltage High Level, VOH (50 Ohms to 0V) Output Voltage Low Level, VOL (50 Ohms to 0V) Output Voltage Swing AC PERfORMANCE Propagation Delay Dispersion vs. VOD Rise Time (each output), tr Fall Time (each output), tf Minimum Detectable Pulse Width Equivalent Input Bandwidth [2] Input-to-Output Delay Latch-to-Output Delay Max. Input Slew Rate Noise (RTI) Random Jitter (rms) Deterministic Jitter (pp) POWER SUPPLIES (including load) IPS INS Icco Pd 13.4 28.3 70 14.9 29.9 72.3 240 16.5 31.6 79.6 mA mA mA mW at 5 Gbps with ±100 mV overdrive at 5 Gbps with ±100 mV overdrive For VOD > 50mV 20% to 80% 80% to 20% VCM = 0V; ±100 mV Overdrive Voltage 20 25.3 21.9 60 11 88 83 5 6 0.2 2 ps ps ps ps GHz ps ps V/ns nV/ √(Hz) ps rms ps 320 1.06 0.73 365 410 V V mV 1.6 2.4 7.8 V V kOhms Conditions Min. Typ. Max Units 7 COMPARATORS - SMT 7-2 [1] Vcco can be set between +3.3V and 0V; Vterm = Vcco-2V RSPECL levels are obtained with Vcco=+3.3V and Vterm=+1.3V; RSECL levels are obtained with Vcco=0V and Vterm= -2 V [2] Equivalent Input Bandwidth is calculated with the following formula: Bweq=0.22/√ (TRCOMP2-TRIN2) 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, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC974LC3C v00.0110 10 GHz, HIGH SPEED WINDOW COMPARATOR Output Voltage vs. Temperature 1.5 ORB VOH WOUT VOH URB VOH ORB VOL WOUT VOL URB VOL Dispersion vs. Overdrive Voltage 75 60 DISPERSION (ps) VOLTAGE (V) 100 110 7 COMPARATORS - SMT 1.3 Vcm = +0.5V Vcm = -0.5V Vcm = 0V 45 1.1 30 0.9 15 0 0.7 -15 0 10 20 30 40 50 60 70 80 90 0.5 -45 -32 -19 -6 7 20 33 46 59 72 85 OVERDRIVE VOLTAGE (mV) TEMPERATURE (°C) Output Voltage Swing vs. Temperature 0.62 Power Supply Currents 80 70 0.54 CURRENT (mA) VOLTAGE (V) ORB Swing WOUT Swing URB Swing 60 50 40 30 20 I_VCCO I_VCCI I_VEE 0.46 0.38 0.3 -45 -32 -19 -6 7 20 33 46 59 72 85 10 -45 -32 -19 -6 7 20 33 46 59 72 85 TEMPERATURE (°C) TEMPERATURE (°C) Output Rise / Fall Time 36 34 32 ORB tr WOUT tr URB tr ORB tf WOUT tf URB tf DELAY (ps) 30 28 26 24 22 20 -45 -32 -19 -6 7 20 33 46 59 72 85 TEMPERATURE (°C) 7-3 For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC974LC3C v00.0110 10 GHz, HIGH SPEED WINDOW COMPARATOR Eye Diagram @ 5 Gbps Parameter Bit Rate Pattern Length DJ (p-p) Vertical Scale Time Scale Conditions 5 Gbps 215 -1 2.15 ps 80 mV / div 33.3 ps / div 7 COMPARATORS - SMT 7-4 Timing Diagram For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC974LC3C v00.0110 10 GHz, HIGH SPEED WINDOW COMPARATOR 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 Output Current Junction Temperature Continuous Pdiss (T = 85°C) (Derate 20.4 mW/°C above 85°C) Thermal Resistance (Rth) (Junction to Lead) Storage Temperature Operating Temperature -0.5V to +4V -0.5V to +4V -0.5V to +3V -2V to +2V -2V to +2V 40 mA 125°C 0.816 W 49 °C/W -65°C to +150°C -40°C to +85°C 7 COMPARATORS - SMT ELECTROSTATIC SENSITIVE DEVICE OBSERVE HANDLING PRECAUTIONS Outline Drawing NOTES: 1. PACKAGE BODY MATERIAL: ALUMINA 2. LEAD AND GROUND PADDLE PLATING: 30-80 MICROINCHES GOLD OVER 50 MICROINCHES MINIMUM NICKEL. 3. DIMENSIONS ARE IN INCHES [MILLIMETERS]. 4. LEAD SPACING TOLERANCE IS NON-CUMULATIVE. 5. PACKAGE WARP SHALL NOT EXCEED 0.05mm DATUM -C6. ALL GROUND LEADS MUST BE SOLDERED TO PCB RF GROUND. 7. PADDLE MUST BE SOLDERED TO NS. 7-5 For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC974LC3C v00.0110 10 GHz, HIGH SPEED WINDOW COMPARATOR Pin Descriptions Pin Number 1 2 3 4 Function RT WIN WIT RB Description Termination resistor for reference top. Window analog input. Window CM for termination resistors. Termination resistor return for reference bottom. Interface Schematic 7 COMPARATORS - SMT 7-6 5, 16 PS Positive supply voltage input stage. 6 LE Latch enable input pin, inverting side. 7 LE Latch enable input pin, non-inverting side. 8, 14 NS Negative power supply, -3V. 9, 13 Vcco Positive supply voltage for the output stage. Under-range output. URB is asserted low when the analog input voltage is below RB. Window Output. WOUTB is asserted low when the analog input voltage is between RB and RT. Over-range output. ORB is asserted low when the analog input voltage range is above RT. Return for ESD protection. Exposed paddle should be connected to NS (negative power supply, -3V) 10 URB 11 WOUTB 12 ORB 15 RTN Package Base For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC974LC3C v00.0110 10 GHz, HIGH SPEED WINDOW COMPARATOR Evaluation PCB 7 COMPARATORS - SMT List of Materials for Evaluation PCB 129538 [1] Item J1 J2 - J7 J8 JP1, JP2 C1 - C3, C5, C6, C8 - C10, C15 C4, C7, C11 C12 - C14 TP1 - TP4 U1 PCB [2] Description Conn Header 8 Pos Vert Tin K Connector, SRI Terminal Strip, Single Row 3 Pin Conn Header 2 Pos Vert Tin 100 pF Capacitor, 0402 Pkg. 330 pF Capacitor, 0402 Pkg. 4.7 µF Capacitor, Tantalum DC Pin HMC974LC3C Window Comparator 125933 Evaluation Board 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. The exposed metal package base must be connected to NS. A sufficient number of via holes should be used to connect the top and bottom ground planes. The evaluation circuit board shown is available from Hittite upon request. [1] Reference this number when ordering complete evaluation PCB [2] Circuit Board Material: Arlon 25FR or Rogers 4350 7-7 For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com HMC974LC3C v00.0110 10 GHz, HIGH SPEED WINDOW COMPARATOR Application Circuit 7 COMPARATORS - SMT For price, delivery, and to place orders, please contact Hittite Microwave Corporation: 20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com 7-8