Rail-to-Rail Amplifier

® EL8302 Data Sheet May 6, 2005 FN7348.2 500MHz Rail-to-Rail Amplifier The EL8302 represents a triple rail-to-rail amplifier with a 3dB bandwidth of 500MHz and slew rate of 600V/µs. Running off a very low supply current of 5.6mA per channel, the EL8302 also features inputs that go to 0.15V below the VS- rail. The EL8302 includes a fast-acting disable/power-down circuit. With a 25ns disable and a 200ns enable, the EL8302 is ideal for multiplexing applications. The EL8302 is designed for a number of general purpose video, communication, instrumentation, and industrial applications. The EL8302 is available in an 16-pin SO and 16-pin QSOP packages and is specified for operation over the -40°C to +85°C temperature range. Features • 500MHz -3dB bandwidth • 600V/µs slew rate • Low supply current = 5.6mA per amplifier • Supplies from 3V to 5.5V • Rail-to-rail output • Input to 0.15V below VS• Fast 25ns disable • Low cost • Pb-Free available (RoHS compliant) Applications • Video amplifiers • Portable/hand-held products • Communications devices Pinout EL8302 (16-PIN SO, QSOP) TOP VIEW INA+ 1 CEA 2 VS- 3 CEB 4 INB+ 5 NC 6 CEC 7 INC+ 8 + + + 16 INA15 OUTA 14 VS+ 13 OUTB 12 INB11 NC 10 OUTC 9 INC- Ordering Information PART NUMBER EL8302IS EL8302IS-T7 EL8302IS-T13 EL8302ISZ (See Note) EL8302ISZ-T7 (See Note) EL8302ISZ-T13 (See Note) EL8302IU EL8302IU-T7 EL8302IU-T13 EL8302IUZ (See Note) EL8302IUZ-T7 (See Note) EL8302IUZ-T13 (See Note) PACKAGE 16-Pin SO 16-Pin SO 16-Pin SO 16-Pin SO (Pb-free) 16-Pin SO (Pb-free) 16-Pin SO (Pb-free) 16-Pin QSOP 16-Pin QSOP 16-Pin QSOP 16-Pin QSOP (Pb-free) 16-Pin QSOP (Pb-free) 16-Pin QSOP (Pb-free) TAPE & REEL PKG. DWG. # 7” 13” 7” 13” 7” 13” 7” 13” MDP0027 MDP0027 MDP0027 MDP0027 MDP0027 MDP0027 MDP0040 MDP0040 MDP0040 MDP0040 MDP0040 MDP0040 NOTE: Intersil Pb-free products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-352-6832 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2003, 2005. All Rights Reserved All other trademarks mentioned are the property of their respective owners. EL8302 Absolute Maximum Ratings (TA = 25°C) Supply Voltage from VS+ to VS- . . . . . . . . . . . . . . . . . . . . . . . . . 5.5V Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . VS+ + 0.3V to VS- -0.3V Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2V Continuous Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . 40mA Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +125°C Ambient Operating Temperature . . . . . . . . . . . . . . . .-40°C to +85°C Operating Junction Temperature . . . . . . . . . . . . . . . . . . . . . . +125°C CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typ values are for information purposes only. Unless otherwise noted, all tests are at the specified temperature and are pulsed tests, therefore: TJ = TC = TA Electrical Specifications PARAMETER INPUT CHARACTERISTICS VOS TCVOS IB IOS TCIOS CMRR CMIR RIN CIN AVOL Offset Voltage VS+ = 5V, VS- = GND, TA = 25°C, VCM = 2.5V, RL to 2.5V, AV = 1, Unless Otherwise Specified CONDITIONS MIN TYP MAX UNIT DESCRIPTION -7 -0.8 3 +7 mV µV/°C µA Offset Voltage Temperature Coefficient Measured from TMIN to TMAX Input Bias Current Input Offset Current Input Bias Current Temperature Coefficient Common Mode Rejection Ratio Common Mode Input Range Input Resistance Input Capacitance Open Loop Gain VOUT = +1.5V to +3.5V, RL = 1kΩ to GND VOUT = +1.5V to +3.5V, RL = 150Ω to GND 75 Common Mode VIN = 0V VIN = 0V Measured from TMIN to TMAX VCM = -0.15V to +3.5V 70 VS- -0.15 -10 -6 0.1 2 95 VS+ - 1.5 7 0.5 100 80 0.6 µA nA/°C dB V MΩ pF dB dB OUTPUT CHARACTERISTICS ROUT VOP Output Resistance Positive Output Voltage Swing AV = +1 RL = 1kΩ RL = 150Ω VON Negative Output Voltage Swing RL = 150Ω RL = 1kΩ IOUT ISC (source) ISC (sink) Linear Output Current Short Circuit Current Short Circuit Current RL = 10Ω RL = 10Ω 50 90 4.85 4.65 30 4.9 4.7 150 50 65 80 150 200 70 mΩ V V mV mV mA mA mA POWER SUPPLY PSRR IS-ON IS-OFF ENABLE tEN tDS VIH-ENB VIL-ENB Enable Time Disable Time ENABLE Pin Voltage for Power-up ENABLE Pin Voltage for Shut-down 200 25 0.8 2 ns ns V V Power Supply Rejection Ratio Supply Current - Enabled per Amplifier Supply Current - Disabled per Amplifier VS+ = 4.5V to 5.5V 70 95 5.6 40 6.2 90 dB mA µA 2 EL8302 Electrical Specifications PARAMETER IIH-ENB IIL-ENB VS+ = 5V, VS- = GND, TA = 25°C, VCM = 2.5V, RL to 2.5V, AV = 1, Unless Otherwise Specified CONDITIONS MIN TYP 8.6 0.01 MAX UNIT µA µA DESCRIPTION ENABLE Pin Input Current High ENABLE Pin Input for Current Low AC PERFORMANCE BW -3dB Bandwidth AV = +1, RF = 0Ω, CL = 1.5pF AV = -1, RF = 1kΩ, CL = 1.5pF AV = +2, RF = 1kΩ, CL = 1.5pF AV = +10, RF = 1kΩ, CL = 1.5pF BW Peak GBWP PM SR tR tF OS tPD tS dG dP eN iN+ iNeS ±0.1dB Bandwidth Peaking Gain Bandwidth Product Phase Margin Slew Rate Rise Time Fall Time Overshoot Propagation Delay 0.1% Settling Time Differential Gain Differential Phase Input Noise Voltage Positive Input Noise Current Negative Input Noise Current Channel Separation RL = 1kΩ, CL = 1.5pF AV = 2, RL = 100Ω, VOUT = 0.5V to 4.5V 2.5VSTEP, 20% - 80% 2.5VSTEP, 20% - 80% 200mV step 200mV step 200mV step AV = +2, RF = 1kΩ, RL = 150Ω AV = +2, RF = 1kΩ, RL = 150Ω f = 10kHz f = 10kHz f = 10kHz f = 100kHz 500 AV = +1, RF = 0Ω, CL = 1.5pF AV = +1, RL = 1kΩ, CL = 1.5pF 500 140 165 18 36 1 200 55 600 4 2 10 1 15 0.01 0.01 12 1.7 1.3 95 MHz MHz MHz MHz MHz dB MHz ° V/µs ns ns % ns ns % ° nV/√Hz pA/√Hz pA/√Hz dB Pin Descriptions PIN 1, 5, 8 2, 4, 7 3 6, 11 9, 12, 16 10, 13, 15 14 NAME INA+, INB+, INC+ CEA, CEB, CEC VSNC INC-, INB-, INAOUTC, OUTB, OUTA VS+ Non-inverting input for each channel Enable and disable input for each channel Negative power supply Not connected Inverting input for each channel Amplifier output for each channel Positive power supply FUNCTION 3 EL8302 Typical Performance Curves 5 4 3 2 GAIN (dB) 1 0 -1 -2 -3 -4 -5 1M 10M VOP-P=1V VOP-P=2V 1G 5 NORMALIZED GAIN (dB) 3 RF=RG=1kΩ 1 -1 -3 VS=5V AV=2 RL=1kΩ CL=1.5pF 1M 10M FREQUENCY (Hz) 100M 1G RF=RG=500Ω RF=RG=2kΩ VS=5V AV=1 RL=1kΩ CL=1.5pF VOP-P=200mV 100M -5 100K FREQUENCY (Hz) FIGURE 1. FREQUENCY RESPONSE FOR VARIOUS OUTPUT VOLTAGE LEVELS FIGURE 2. SMALL SIGNAL FREQUENCY RESPONSE vs RF AND RG 5 4 NORMALIZED GAIN (dB) 3 2 1 0 -1 -2 -3 -4 -5 1M NORMALIZED GAIN (dB) VS=5V CL=1.5pF RL=1kΩ AV=2 AV=1 4 2 0 VS=5V CL=1.5pF RL=1kΩ RF=1kΩ AV=-1 AV=-5 AV=5 AV=10 -2 -4 -6 100K AV=-10 10M 100M 1G 1M 10M FREQUENCY (Hz) 100M 1G FREQUENCY (Hz) FIGURE 3. SMALL SIGNAL FREQUENCY RESPONSE FOR VARIOUS NON-INVERTING GAINS FIGURE 4. SMALL SIGNAL FREQUENCY RESPONSE FOR VARIOUS INVERTING GAINS 5 4 3 2 GAIN (dB) 1 0 -1 -2 -3 -4 11 VS=5V AV=1 CL=1.5pF VOP-P=200mV 9 RL=1kΩ GAIN (dB) 7 5 3 RL=500Ω 10M 100M 1G RL=100Ω VS=5V AV=2 CL=1.5pF RF=RG=1kΩ RL=500Ω RL=1kΩ, 150Ω -5 1M 1 100K 1M 10M FREQUENCY (Hz) 100M 1G FREQUENCY (Hz) FIGURE 5. SMALL SIGNAL FREQUENCY RESPONSE FOR VARIOUS RLOAD FIGURE 6. SMALL SIGNAL FREQUENCY RESPONSE vs VARIOUS RLOAD 4 EL8302 Typical Performance Curves (Continued) 5 4 3 2 GAIN (dB) 1 0 -1 -2 -3 -4 -5 1M 10M 100M 1G CL=1.5pF 16 VS=5V AV=1 RL=1kΩ VOP-P=200mV CL=4.8pF CL=3.7pF GAIN (dB) 14 12 10 8 6 4 2 0 -2 -4 1M 10M 100M 1G CL=10pF CL=1.5pF VS=5V AV=2 RL=1kΩ RF=RG=1kΩ CL=20pF CL=13.5pF CL=28.5pF FREQUENCY (Hz) FREQUENCY (Hz) FIGURE 7. SMALL SIGNAL FREQUENCY RESPONSE vs CL FIGURE 8. SMALL SIGNAL FREQUENCY RESPONSE FOR VARIOUS CL 110 RL=1kΩ 405 315 GAIN (dB) 225 PHASE (°) -10 -30 -50 -70 -90 -110 1K 70 R =150Ω L GAIN (dB) 30 RL=150Ω -10 -50 -90 1K RL=1kΩ VS=5V AV=1 RL=1kΩ 135 45 -45 1G 10K 100K 1M 10M 100M 10K 100K 1M 10M 100M 1G FREQUENCY (Hz) FREQUENCY (Hz) FIGURE 9. OPEN LOOP GAIN AND PHASE vs FREQUENCY FIGURE 10. DISABLED OUTPUT ISOLATION FREQUENCY RESPONSE -10 -30 PSRR (dB) -50 -70 -90 -110 1K PSRRPSRR+ 550 500 BANDWIDTH (MHz) 450 400 350 300 250 200 150 100 10K 100K 1M 10M 100M 3 3.5 4 VS (V) 4.5 5 5.5 FREQUENCY (Hz) AV=2 RL=1kΩ CL=1.5pF AV=1 FIGURE 11. POWER SUPPLY REJECTION RATIO vs FREQUENCY FIGURE 12. SMALL SIGNAL BANDWIDTH vs SUPPLY VOLTAGE 5 EL8302 Typical Performance Curves (Continued) 100 2.5 2 IMPEDANCE (Ω) 10 PEAKING (dB) 1.5 1 0.5 AV=2 3 3.5 4 VS (V) 4.5 5 5.5 AV=1 RL=1kΩ CL=1.5pF 1 0.1 0.01 10K 0 100K 1M FREQUENCY (Hz) 10M 100M FIGURE 13. OUPUT IMPEDANCE vs FREQUENCY FIGURE 14. SMALL SIGNAL PEAKING vs SUPPLY VOLTAGE -15 -35 CMRR (dB) -55 -75 -95 -115 100K 10 8 6 4 2 0 IS (mA) 1M 10M 100M 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 FREQUENCY (Hz) VS (V) FIGURE 15. COMMON-MODE REJECTION RATIO vs FREQUENCY FIGURE 16. SUPPLY CURRENT vs SUPPLY VOLTAGE (PER AMPLIFIER) -60 -70 VS=5V VS=5V RL=1kΩ RL=1kΩ CL=1.5p CL=1.5pF F V=2 A HD2@10MHz -75 DISTORTION (dBc) -80 -85 -90 -95 VS=5V f=5MHz VO=1VP-P for AV=1 VO=2VP-P for AV=2 DISTORTION (dBc) -70 HD2@ H