High Speed Op Amp

LMH6551 Differential, High Speed Op Amp February 2005 LMH6551 Differential, High Speed Op Amp General Description The LMH™6551 is a high performance voltage feedback differential amplifier. The LMH6551 has the high speed and low distortion necessary for driving high performance ADCs as well as the current handling capability to drive signals over balanced transmission lines like CAT 5 data cables. The LMH6551 can handle a wide range of video and data formats. With external gain set resistors, the LMH6551 can be used at any desired gain. Gain flexibility coupled with high speed makes the LMH6551 suitable for use as an IF amplifier in high performance communications equipment. The LMH6551 is available in the space saving SOIC and MSOP packages. Features n n n n n 370 MHz −3 dB bandwidth (VOUT = 0.5 VPP) 50 MHz 0.1 dB bandwidth 2400 V/µs slew Rate 18 ns settling time to 0.05% −94/−96 dB HD2/HD3 @ 5 MHz Applications n n n n n n n Differential AD driver Video over twisted pair Differential line driver Single end to differential converter High speed differential signaling IF/RF amplifier SAW filter buffer/driver Typical Application 20133210 Single Ended Input Differential Output. Gain = AV=RF/RG Where VIN is measured single ended and VOUT is measured differentially. (Each individual output will equal ± VIN/2.) LMH™ is a trademark of National Semiconductor Corporation. © 2005 National Semiconductor Corporation DS201332 www.national.com LMH6551 Connection Diagram 8-Pin SOIC & MSOP 20133208 Top View Ordering Information Package 8-Pin SOIC 8–Pin MSOP Part Number LMH6551MA LMH6551MAX LMH6551MM LMH6551MMX Package Marking LMH6551MA AU1A Transport Media 95/Rails 2.5k Units Tape and Reel 1k Units Tape and Reel 3.5k Units Tape and Reel NSC Drawing M08A MUA08A www.national.com 2 LMH6551 Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. ESD Tolerance (Note 5) Human Body Model Machine Model Supply Voltage Common Mode Input Voltage Maximum Input Current (pins 1, 2, 7, 8) Maximum Output Current (pins 4, 5) 2000V 200V 13.2V Soldering Information Infrared or Convection (20 sec) Wave Soldering (10 sec) 235˚C 260˚C Operating Ratings (Note 1) Operating Temperature Range Storage Temperature Range Total Supply Voltage Package Thermal Resistance (θJA) (Note 4) 8-Pin MSOP 8-Pin SOIC −40˚C to +125˚C −65˚C to +150˚C 3V to 12V 235˚C/W 150˚C/W ± Vs 30mA (Note 3) 5V Electrical Characteristics (Note 2) Single ended in differential out, TA= 25˚C, G = +1, VS = ± 5V, VCM = 0V, RF = RG = 365Ω, RL = 500Ω;; Unless specified Boldface limits apply at the temperature extremes. Symbol Parameter Conditions Min (Note 8) Typ (Note 7) 370 340 320 50 2400 1.8 18 200 Max (Note 8) Units AC Performance (Differential) SSBW LSBW Small Signal −3 dB Bandwidth Large Signal −3 dB Bandwidth Large Signal −3 dB Bandwidth 0.1 dB Bandwidth Slew Rate Rise/Fall Time Settling Time Common Mode Small Signal Bandwidth Distortion and Noise Response HD2 HD2 HD3 HD3 en in VOSD Input Referred Voltage Noise Input Referred Noise Current Input Offset Voltage Input Offset Voltage Average Temperature Drift IBI Input Bias Current Input Bias Current Average Temperature Drift Input Bias Difference CMRR RIN CIN CMVR Common Mode Rejection Ratio Input Resistance Input Capacitance Input Common Mode Voltage Range VO = 2 VPP, f = 5 MHz, RL=800Ω VO = 2 VPP, f = 20MHz, RL=800Ω VO = 2 VPP, f = 5 MHz, RL=800Ω VO = 2 VPP, f = 20 MHz, RL=800Ω Freq ≥ 1 MHz Freq ≥ 1 MHz Differential Mode, VID = 0, VCM = 0 (Note 10) (Note 9) (Note 10) Difference in Bias currents between the two inputs DC, VCM = 0V, VID = 0V Differential Differential CMRR > 53dB +3.1 −4.6 72 −94 −85 −96 −72 6.0 1.5 0.5 −0.8 -4 −2.6 0.03 80 5 1 +3.2 −4.7 0 -10 dBc dBc dBc dBc nV/ pA/ VOUT = 0.5 VPP VOUT = 2 VPP VOUT = 4 VPP VOUT = 2 VPP 4V Step(Note 6) 2V Step 2V Step, 0.05% VCMbypass capacitor removed MHz MHz MHz MHz V/µs ns ns MHz ± VCM Pin AC Performance (Common Mode Feedback Amplifier) Input Characteristics (Differential) ±4 ±6 mV µV/˚C µA nA/˚C µA dBc MΩ pF V VCMPin Input Characteristics (Common Mode Feedback Amplifier) 3 www.national.com LMH6551 ± 5V Electrical Characteristics (Note 2) Symbol VOSC Parameter Input Offset Voltage Input Offset Voltage Average Temperature Drift Input Bias Current VCM CMRR Input Resistance Common Mode Gain Output Performance Output Voltage Swing Output Common Mode Voltage Range IOUT ISC Linear Output Current Short Circuit Current Output Balance Error (Continued) Single ended in differential out, TA= 25˚C, G = +1, VS = ± 5V, VCM = 0V, RF = RG = 365Ω, RL = 500Ω;; Unless specified Boldface limits apply at the temperature extremes. Conditions Common Mode, VID = 0 (Note 10) (Note 9) VID = 0V, 1V step on VCM pin, measure VOD ∆VO,CM/∆VCM Single Ended, Peak to Peak VID = 0 V, VOUT = 0V Output Shorted to Ground VIN = 3V Single Ended(Note 3)l ∆VOUTCommon Mode /∆VOUTDIfferential , VOUT = 0.5 Vpp Differential, f = 10 MHz Differential DC, ∆VS = ± 1V RL = ∞ 74 11 70 Min (Note 8) Typ (Note 7) 0.5 8.2 −2 75 25 0.995 0.999 1.005 Max (Note 8) Units mV µV/˚C µA dB kΩ V/V V V mA mA dB ±5 ±8 ± 7.38 ± 7.18 ± 3.69 ± 50 ± 7.8 ± 3.8 ± 65 140 −70 Miscellaneous Performance AVOL PSRR Open Loop Gain Power Supply Rejection Ratio Supply Current 70 90 12.5 14.5 16.5 dB dB mA (Note 2) Single ended in differential out, TA= 25˚C, G = +1, VS = 5V, VCM = 2.5V, RF = RG = 365Ω, RL = 500Ω; ; Unless specifiedBoldface limits apply at the temperature extremes. Symbol SSBW LSBW Parameter Small Signal −3 dB Bandwidth Large Signal −3 dB Bandwidth 0.1 dB Bandwidth Slew Rate Rise/Fall Time, 10% to 90% Settling Time Common Mode Small Signal Bandwidth Distortion and Noise Response HD2 HD2 HD3 HD3 en in Input Referred Noise Voltage Input Referred Noise Current 3rd Harmonic Distortion 2nd Harmonic Distortion VO = 2 VPP, f = 5 MHz, RL=800Ω VO = 2 VPP, f = 20 MHz, RL=800Ω VO = 2 VPP, f = 5 MHz, RL=800Ω VO = 2 VPP, f = 20 MHz, RL=800Ω Freq ≥ 1 MHz Freq ≥ 1 MHz −84 −69 −93 −67 6.0 1.5 dBc dBc dBc dBc nV/ pA/ Conditions RL = 500Ω, VOUT = 0.5 VPP RL = 500Ω, VOUT = 2 VPP VOUT = 2 VPP 4V Step(Note 6) 4V Step 4V Step, 0.05% Min (Note 8) Typ (Note 7) 350 300 50 1800 2 17 170 Max (Note 8) Units MHz MHz MHz V/µs ns ns MHz 5V Electrical Characteristics VCM Pin AC Performance (Common Mode Feedback Amplifier) Input Characteristics (Differential) www.national.com 4 LMH6551 5V Electrical Characteristics Symbol VOSD Parameter Input Offset Voltage Input Offset Voltage Average Temperature Drift IBIAS Input Bias Current Input Bias Current Average Temperature Drift Input Bias Current Difference CMRR Common-Mode Rejection Ratio Input Resistance Input Capacitance VICM Input Common Mode Range (Note 2) (Continued) Single ended in differential out, TA= 25˚C, G = +1, VS = 5V, VCM = 2.5V, RF = RG = 365Ω, RL = 500Ω; ; Unless specifiedBoldface limits apply at the temperature extremes. Conditions Differential Mode, VID = 0, VCM = 0 (Note 10) (Note 9) (Note 10) Difference in Bias currents between the two inputs DC, VID = 0V Differential Differential CMRR > 53 dB +3.1 +0.4 70 Min (Note 8) Typ (Note 7) 0.5 −0.8 −4 −3 0.03 78 5 1 +3.2 +0.3 0.5 5.8 3 VID = 0, 1V step on VCM pin, measure VOD VCM pin to ground ∆VO,CM/∆VCM Single Ended, Peak to Peak, VS= ± 2.5V, VCM= 0V VOUT = 0V Differential Output Shorted to Ground VIN = 3V Single Ended(Note 3) VID = 0, VCMpin = 1.2V and 3.8V ∆VOUTCommon Mode /∆VOUTDIfferential , VOUT = 1Vpp Differential, f = 10 MHz DC, Differential DC, ∆VS = ± 0.5V RL = ∞ 72 10 3.72 1.23 0.995 70 75 25 0.991 1.005 0 -10 Max (Note 8) Units mV µV/˚C µA nA/˚C µA dBc MΩ pF ±4 ±6 VCMPin Input Characteristics (Common Mode Feedback Amplifier) Input Offset Voltage Input Offset Voltage Average Temperature Drift Input Bias Current VCM CMRR Input Resistance Common Mode Gain Output Performance VOUT IOUT ISC CMVR Output Voltage Swing Linear Output Current Output Short Circuit Current Output Common Mode Voltage Range Output Balance Error Common Mode, VID = 0 ±5 ±8 mV µV/˚C µA dB kΩ V/V V mA mA ± 2.4 ± 45 ± 2.8 ± 60 230 3.8 1.2 −65 V dB Miscellaneous Performance Open Loop Gain PSRR IS Power Supply Rejection Ratio Supply Current 70 88 11.5 13.5 15.5 dB dB mA (Note 2) Single ended in differential out, TA= 25˚C, G = +1, VS = 3.3V, VCM = 1.65V, RF = RG = 365Ω, RL = 500Ω; ; Unless specifiedBoldface limits apply at the temperature extremes. Symbol SSBW Parameter Small Signal −3 dB Bandwidth Conditions RL = 500Ω, VOUT = 0.5 VPP Min (Note 8) Typ (Note 7) 320 Max (Note 8) Units MHz 3.3V Electrical Characteristics 5 www.national.com LMH6551 3.3V Electrical Characteristics Symbol LSBW Parameter Large Signal −3 dB Bandwidth Slew Rate Rise/Fall Time, 10% to 90% Common Mode Small Signal Bandwidth Distortion and Noise Response HD2 HD2 HD3 HD3 Input Characteristics (Differential) VOSD Input Offset Voltage Input Offset Voltage Average Temperature Drift IBIAS Input Bias Current Input Bias Current Average Temperature Drift Input Bias Current Difference CMRR Common-Mode Rejection Ratio Input Resistance Input Capacitance VICM Input Common Mode Range 3 rd (Note 2) (Continued) Single ended in differential out, TA= 25˚C, G = +1, VS = 3.3V, VCM = 1.65V, RF = RG = 365Ω, RL = 500Ω; ; Unless specifiedBoldface limits apply at the temperature extremes. Conditions RL = 500Ω, VOUT = 1 VPP 1V Step(Note 6) 1V Step Min (Note 8) Typ (Note 7) 300 700 2 95 Max (Note 8) Units MHz V/µs ns MHz VCM Pin AC Performance (Common Mode Feedback Amplifier) 2nd Harmonic Distortion Harmonic Distortion VO = 1 VPP, f = 5 MHz, RL=800Ω VO = 1 VPP, f = 20 MHz, RL=800Ω VO = 1VPP, f = 5 MHz, RL=800Ω VO = 1VPP, f = 20 MHz, RL