LH0002 Buffer LLC LH0002 FEATURES • High Input Impedance . . . . . . . . . . . . . . . . . . . . . . 400kΩ • Low Output Impedance. . . . . . . . . . . . . . . . . . . . . . . . 3Ω Power Efficiency • High • Low Harmonic Distortion • Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . DC to 50MHz Voltage Swing that Approaches Supply Voltage • Output • Pulsed Output Current . . . . . . . . . . . . . . . . . . . . . 400mA • Slew Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200V/µs • Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±5V to ±20V APPLICATIONS • Line Driver • Instrumentation Shield Driver Speed D/A Conversion • High • Precision Current Source • Video Driver GENERAL DESCRIPTION The LH0002 is a high speed unity gain buffer designed to provide high current drive capability at frequencies from DC to over 50MHz. It is capable of providing a continuous current of ±100mA and a peak of ±400mA. It is ideal to integrate with an operational amplifier inside a close loop configuration. ORDERING INFORMATION Part Package Temperature Range LH0002H LH0002CH LH0002CN HO8 (TO5-8 Lead) -55oC to +125oC HO8 (TO5-8 Lead) -40oC to +85oC N10A (Plastic DIP-10 Pin) -40oC to +85oC CONNECTION DIAGRAMS METAL CAN PACKAGE DUAL-IN-LINE PACKAGE INPUT 8 V1 + V2 + 1 7 2 V2 + V1 - 6 V1 + V2 - INPUT V1 - E3 3 5 E4 V2 - 1 10 2 9 3 8 4 7 5 6 E1 E3 OUTPUT E4 E2 4 OUTPUT N10A HO8A CALOGIC LLC, 237 WHITNEY PLACE, FREMONT, CA 94539, 510-656-2900 PHONE, 510-651-1076 FAX DS046 REV A LH0002 LLC ABSOLUTE MAXIMUM RATINGS (Note 2) OPERATING RATINGS (Note 3) If Military/Aerospace specified devices are required, please contact the Calogic Sales Office for availability and specifications. Temperature Range LH0002H . . . . . . . . . . . . . . . . . . . . . . . . . -55oC to +125oC LH0002C . . . . . . . . . . . . . . . . . . . . . . . . . . -40oC to +85oC Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±22V Power Dissipation (Note 3) . . . . . . . . . . . . . . . . . . . . 600mW Input Voltage . . . . . . . . . . . . (Equal to Power Supply Voltage) Storage Temperature Range . . . . . . . . . . . . -65oC to +150oC Junction Temperature N Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150oC H Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +175oC Steady State Output Current . . . . . . . . . . . . . . . . . . . ±100mA Pulsed Output Current (50ms On/1 sec. Off) . . . . . . ±400mA Lead Temperature Soldering (10 seconds) Metal Can. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300oC Plastic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300oC ESD Rating (Note 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2kV Thermal Resistance (Note 4) θJA, H Package. . . . . . . . . . . . . . . . . . . . . . . . . . . 125oC/W θJC, H Package . . . . . . . . . . . . . . . . . . . . . . . . . . . 15oC/W θJA, N Package. . . . . . . . . . . . . . . . . . . . . . . . . . . 120oC/W ELECTRICAL CHARACTERISTICS (Note 1) SYMBOL PARAMETER MIN TYP MAX UNITS CONDITIONS RS = 10kΩ, RL = 1.0KΩ, VIN = ±10V AV Voltage Gain 0.95 0.97 RIN Input Impedance 180 400 RO Output Impedance VO1 Output Voltage Swing ±10 VO2 Output Voltage Swing ±10 VOS DC Output Offset Voltage ±10 ±30 mV RS = 300Ω, RL = 1.0kΩ, IB DC Input Bias Current ±6.0 ±10 µA RS = 10kΩ, RL = 1.0kΩ, HDT Harmonic Distortion 0.1 % VIN = 5.0Vrms, f = 1.0kHz R/T Rise Time 7.0 12 ns RL = 50Ω, ∆VIN = 100mV IS+ Positive Supply Current +6.0 +10 mA RS = 10kΩ, RL = 1.0kΩ, IS- Negative Supply Current -6.0 -10 mA RS = 10kΩ, RL = 1.0kΩ, kΩ RS = 200kΩ, VIN = ±1.0V, RL = 1.0kΩ, Ω VIN = ±1.0V, RL = 50Ω, RS = 10kΩ ±11 V RL = 1.0kΩ, VIN = ±12V ±11 V VS = ±15V, VIN = ±12V, RS = 50Ω, RL = 100Ω, TA = 25oC 6.0 10 Note 1. Specification applies for T A = 25oC with +12V on Pins 1 and 2; -12V on Pins 6 and 7 for the metal can package and +12V on Pins 1 and 2; -12V on Pins 4 and 5 for the dual-in-line package, unless otherwise specified. The parameter guarantees for LH0002C apply over the temperature range of 0oC to +85 oC while parameters for the LH0002 are guaranteed over the temperature range -55oC to +125oC unless otherwise specified. Note 2. Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the devices intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Note 3. The maximum power dissipation is a function of maximum junction temperature (TJMax), total thermal resistance (θJA), and ambient temperature (TA) maximum allowed power dissipation at any ambient is PD = (TJMax - TA)/θJA. Note 4. For operating at elevated temperatures, the device must be derated based on the thermal resistance θJA and TJMax. TJ = T A + PDθJA. Note 5. Human body model, 1.5kΩ in series with 100pF. CALOGIC LLC, 237 WHITNEY PLACE, FREMONT, CA 94539, 510-656-2900 PHONE, 510-651-1076 FAX DS046 REV A LH0002 LLC TYPICAL PERFORMANCE CHARACTERISTICS INPUT IMPEDANCE (MAGNITUDE & PHASE) FREQUENCY RESPONSE -40 VIN = 1Vrms- RL = 50Ω VS = ±12.0V TA = 25˚C 0.6 -24 0.4 -16 0.2 -8 0.1 1.0 2.0 5.0 10.0 20.0 50.0 PHASE LAG (DEGREES) VOLTAGE GAIN -32 -80 1000 TA = 25˚C -60 100 RS = 10kΩ 10 -40 -20 1 0 1.0 0.2 0 100 0.5 1 2 FREQUENCY (MHz) SUPPLY CURRENT POSITIVE PULSE INPUT AND OUTPUT PULSE (V) TA = 25˚C LESS THAN ±10% 10.0 CHANGE FROM -55˚C TO 125˚C 8.0 6.0 4.0 2.0 0 6.0 9.0 12.0 5.0 INPUT 4.0 3.0 OUTPUT 2.0 1.0 0 0 20 40 60 80 100 SUPPLY VOLTAGE (±V) TIME (ns) NEGATIVE PULSE INPUT BIAS CURRENT VS = ±12V R L = RS = 50Ω TA = 25˚C 0 OUTPUT -1.0 INPUT -2.0 -3.0 -4.0 -5.0 0 10 VS = ±12V R L = RS = 50Ω TA = 25˚C 15.0 8 INPUT BIAS CURRENT (µA) SUPPLY CURRENT (±mA) 5 FREQUENCY (MHz) 12.0 INPUT AND OUTPUT PULSE (V) -100 VIN = 0.3VrmsR L= 50Ω VS = ±12.0V PHASE LAG (DEGREES) AV 0.8 INPUT IMPEDANCE (kΩ) 1.0 7 6 TA = 55˚C 5 4 TA = 25˚C 3 2 TA = 125˚C 1 0 0 20 40 60 80 100 120 TIME (ns) 4 6 8 10 12 14 16 18 20 SUPPLY VOLTAGE (±V) CALOGIC LLC, 237 WHITNEY PLACE, FREMONT, CA 94539, 510-656-2900 PHONE, 510-651-1076 FAX DS046 REV A LH0002 LLC TYPICAL APPLICATIONS FIGURE 1. Coaxial Cable Drive Circuit V+ 0.1µF RLIM = 100Ω, 1W RLIM 0.001µF 2 1 3 INPUT RG 58 43Ω 8 LH0002 0.001µF 5 RL 4 50Ω RLIM 0.1µF V- FIGURE 2. Inverting Buffer Amplifier with Current Limit +15V VIN 0.1µF 0.1µF RF RIN +15V 1 2 _ 100Ω OP-AMP 3 8 LH0002 RSC VOUT + 5 0.1µF 4 RIN || R F -15V 0.1µF VOUT R =- F VIN RIN -15V CALOGIC LLC, 237 WHITNEY PLACE, FREMONT, CA 94539, 510-656-2900 PHONE, 510-651-1076 FAX DS046 REV A LH0002 LLC TYPICAL APPLICATIONS (Continued) FIGURE 3. Non-Inverting Buffer Amplifier with Gain +15V +15V 0.1µF 0.1µF 1 2 + VIN 100Ω OP-AMP 3 8 LH0002 VOUT _ 5 0.1µF 0.1µF 4 RLOAD -15V -15V R2 R1 VOUT = VIN 1 + R2 R1 ( ) FIGURE 4. Non-Inverting Buffer Amplifier +15V +15V 0.1µF 0.1µF 1 VIN 2 + 100Ω OP-AMP 3 8 LH0002 VOUT _ 5 0.1µF 4 0.1µF RLOAD -15V -15V CALOGIC LLC, 237 WHITNEY PLACE, FREMONT, CA 94539, 510-656-2900 PHONE, 510-651-1076 FAX DS046 REV A LH0002 LLC TYPICAL APPLICATIONS (Continued) FIGURE 5. LH0002 Using Resistor Current Limiting FIGURE 6. Current Limit Using Current Source V+ 15V 0.1µF RLIM 10Ω RLIM Q2 0.01µF 2 2 1 3 1 VIN 3 8 LH0002 5 VOUT 0.01µF 5 8 LH0002 4 OUTPUT 6.2kΩ 0.01µF Q3 4 Q4 RLIM RLIM 10Ω 0.1µF -15V V- Q1 , Q 2 = 2N2905 Q 3 , Q 4 = 2N2219 CALOGIC LLC, 237 WHITNEY PLACE, FREMONT, CA 94539, 510-656-2900 PHONE, 510-651-1076 FAX DS046 REV A