FHP3131

FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier February 2007 FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier Features at +5V ■ 0.4mA supply current ■ 70MHz bandwidth at unity gain ■ Power down to 30μA ■ Output voltage range at RL = 1kΩ : 0.07V to 4.8V ■ Input extends below negative rail: -0.3V to 4V ■ 50V/μs slew rate ■ 12nV/Hz input voltage noise ■ Small SOT23-6 and MicroPak™ -6 package options ■ Fully specified at +2.7V, +5V, and ±5V supplies Description The FHP3131 is a high-performance, voltage-feedback amplifier that consumes only 0.4mA of supply current while providing 70MHz of bandwidth and 50V/μs slew rate. The FHP3131 is designed to operate from 2.5V to 12V (±6V) supplies. The common mode voltage range extends below the negative rail and the output provides rail-to-rail performance. The FHP3131 is fabricated on a complementary bipolar process. The combination of low power, rail-to-rail performance, low voltage operation, and tiny package options make this amplifier well suited for use in many generalpurpose, high-speed applications. For power sensitive applications, the FHP3131 offers unparalleled dynamic performance. It also offers a shutdown feature to lower the supply current draw below 30μA. The FHP3131 is available in space-saving 6-lead SOT23 or MicroPak™ packages and operates from -40°C to +85°C. 1 Applications ■ Portable/battery-powered applications ■ A/D buffer ■ Active filters ■ Portable test instruments ■ Set-top box ■ HDTV ■ DVD players and recorders ■ Coaxial cable drivers ■ Video driver Normalized Gain (dB) 0 -1 -2 -3 -4 -5 -6 -7 0.1 1 10 100 G=2 Vs = +5V VO = 4Vpp VO = 2Vpp VO = 1Vpp Frequency (MHz) Ordering Information Part Number FHP3131IS6X FHP3131IL6X Moisture sensitivity level for all parts is MSL-1. MicroPak™ is a trademark of Fairchild Semiconductor Corporation. Package SOT23-6 MicroPak-6 Pb-Free Yes Yes Operating Temperature Range -40°C to +85°C -40°C to +85°C Packaging Method Reel Reel © 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2 www.fairchildsemi.com FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier Pin Configurations FHP3131 SOT23 OUT -Vs +IN 1 2 3 6 FHP3131 MicroPak™ +Vs DIS -IN +Vs DIS -IN 1 2 3 6 5 4 OUT -Vs +IN + - 5 4 Top View Pin Assignments Pin # SOT/MicroPak 1/6 2/5 3/4 4/3 5/2 6/1 Name OUT -Vs +IN -IN DIS +Vs Output Negative supply Positive input Negative input Description Leave floating or pull high to enable. Pull low to disable. Positive supply © 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2 www.fairchildsemi.com 2 FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Parameter Supply Voltage Input Voltage Range Min. 0 -Vs -0.5V Max. 12.6 +Vs +0.5V Unit V V Reliability Information Parameter Junction Temperature Storage Temperature Range Reflow Temperature (Soldering) Package Thermal Resistance 6-Lead SOT23 (1) Min. -65 Typ. Max. 150 150 260 Unit °C °C °C °C/W °C/W 302 440 6-Lead MicroPak™(1) Notes: 1. Package thermal resistance (θJA), JEDEC standard, multi-layer test boards, still air. ESD Protection Product Human Body Model (HBM) Charged Device Model (CDM) FHP3131 4kV 2kV Recommended Operating Conditions The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to absolute maximum ratings. Parameter Operating Temperature Range Supply Voltage Range Min. -40 2.5 Typ. Max. +85 12 Unit °C V © 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2 www.fairchildsemi.com 3 FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier Electrical Characteristics at +2.7V TA = 25°C, Vs = 2.7V, Rf = 1kΩ, RL = 1kΩ to Vs/2, G = 2, unless otherwise noted. Symbol UGBW BWss BWLs tR, tF tS OS SR HD2 HD3 THD en VIO dVIO Ib dIb IIO PSRR AOL IS TON / TOFF OFFISO VOFF VON ISD RIN CIN CMIR CMRR Parameter -3dB Bandwidth Small Signal Bandwidth Large Signal Bandwidth Rise and Fall Time Settling Time to 0.1% Overshoot Slew Rate 2nd Harmonic Distortion 3rd Harmonic Distortion Total Harmonic Distortion Input Voltage Noise Input Offset Voltage Average Drift Input Bias Current Average Drift Input Offset Current Power Supply Rejection Ratio Open-Loop Gain Supply Current Turn-On/Turn-Off Time Off Isolation Power Down Input Voltage Enable Input Voltage Disabled Supply Current Input Resistance Input Capacitance Input Common Mode V Range Common Mode Rejection Ratio DC DC Conditions G = +1, VOUT = 0.2Vpp G = +2, VOUT = 0.2Vpp G = +2, VOUT = 2Vpp VOUT = 0.2V step VOUT = 1V step VOUT = 1V step VOUT = 2V step, G = -1 VOUT = 1Vpp, 1MHz VOUT = 1Vpp, 1MHz VOUT = 1Vpp, 1MHz > 100kHz Min. Typ. 70 28 10 11 85 4 45 67 65 63 12 1 10 1.4 3.5 30 100 95 0.4 0.4/2.2 Max. Units MHz MHz MHz ns ns % V/μs dBc dBc dB nV/√Hz mV μV/°C μA nA/°C nA dB dB mA μs dB V V μA MΩ pF V dB Frequency Domain Response Time Domain Response Distortion/Noise Response DC Performance Disable Characteristics 5MHz, RL = 100Ω Disabled if pin is grounded or pulled below VOFF Enabled if pin is floating or pulled above VON DIS pin grounded 65 Vs-1.75 Vs-1.1 15 14 1.1 -0.3 to 1.7 DC, VCM = 0V to Vs - 1.5 RL = 1kΩ to Vs/2, G = -1 VOUT IOUT ISC Output Voltage Swing RL = 150Ω to Vs/2, G = -1 Linear Output Current Short-Circuit Output Current VOUT = Vs/2 95 0.05 to 2.59 0.15 to 2.3 +20,-11 +25,-14 Input Characteristics Output Characteristics V V mA mA © 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2 www.fairchildsemi.com 4 FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier Electrical Characteristics at +5V TA = 25°C, Vs = 5V, Rf = 1kΩ, RL = 1kΩ to Vs/2, G = 2, unless otherwise noted. Symbol UGBW BWss BWLs tR, tF tS OS SR HD2 HD3 THD en DG DP VIO dVIO Ib dIb IIO PSRR AOL IS TON / TOFF OFFISO VOFF VON ISD RIN CIN CMIR CMRR Parameter -3dB Bandwidth Small Signal Bandwidth Large Signal Bandwidth Rise and Fall Time Settling Time to 0.1% Overshoot Slew Rate 2nd Harmonic Distortion 3rd Harmonic Distortion Total Harmonic Distortion Input Voltage Noise Differential Gain Differential Phase Input Offset Voltage(1) Average Drift Input Bias Current(1) Average Drift Input Offset Current(1) Power Supply Rejection Ratio(1) Open-Loop Gain(1) Supply Current(1) Turn-On/Turn-Off Time Off Isolation Power Down Input Voltage(1) Enable Input Voltage(1) Disabled Supply Current(1) Input Resistance Input Capacitance Input Common Mode V Range Common Mode Rejection Ratio (1) Conditions G = +1, VOUT = 0.2Vpp G = +2, VOUT = 0.2Vpp G = +2, VOUT = 2Vpp VOUT = 0.2V step VOUT = 2V step VOUT = 0.2V step VOUT = 2V step, G = -1 VOUT = 2Vpp, 1MHz VOUT = 2Vpp, 1MHz VOUT = 2Vpp, 1MHz > 100kHz NTSC (3.58MHz); AC-coupled NTSC (3.58MHz); AC-coupled Min. Typ. 70 28 11 11 80 2 50 64 58 57 12 0.04 0.13 Max. Units MHz MHz MHz ns ns % V/μs dBc dBc dB nV/√Hz % ° Frequency Domain Response Time Domain Response Distortion / Noise Response DC Performance -5 -3.5 1 10 1.4 3.5 30 DC DC 70 65 100 100 0.40 0.5/1.9 5MHz, RL = 100Ω Disabled if pin is grounded or pulled below VOFF Enabled if pin is floating or pulled above VON DIS pin grounded 65 Vs-1.9 Vs-1.2 30 20 1 -0.3 to 4 DC, VCM = 0V to Vs - 1.5 RL = 1kΩ to Vs/2(1) RL = 150Ω to Vs/2 VOUT = Vs/2 78 0.2 100 0.07 to 4.8 0.25 to 4.4 +30,-18 +35,-24 4.65 45 0.62 350 3.5 5 mV μV/°C μA nA/°C nA dB dB mA μs dB V V μA MΩ pF V dB V V mA mA Disable Characteristics Input Characteristics Output Characteristics VOUT IOUT ISC Output Voltage Swing Linear Output Current Short-Circuit Output Current Note: 1. 100% tested at 25°C. © 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2 www.fairchildsemi.com 5 FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier Electrical Characteristics at ±5V TA = 25°C, Vs = ±5V, Rf = 1kΩ, RL = 1kΩ to GND, G = 2, unless otherwise noted. Symbol UGBW BWss BWLs tR, tF tS OS SR HD2 HD3 THD en DG DP VIO dVIO Ib dIb IIO PSRR AOL IS TON / TOFF OFFISO VOFF VON ISD RIN CIN CMIR CMRR Parameter -3dB Bandwidth Small Singal Bandwidth Large Signal Bandwidth Rise and Fall Time Settling Time to 0.1% Overshoot Slew Rate 2nd Harmonic Distortion 3rd Harmonic Distortion Total Harmonic Distortion Input Voltage Noise Differential Gain Differential Phase Input Offset Voltage Average Drift Input Bias Current Average Drift Input Offset Current Power Supply Rejection Ratio Open-Loop Gain Supply Current per Amplifier Turn-On/Turn-Off Time Off Isolation Power Down Input Voltage Enable Input Voltage Disabled Supply Current Input Resistance Input Capacitance Input Common Mode V Range Common Mode Rejection Ratio DC DC Conditions G = +1, VOUT = 0.2Vpp G = +2, VOUT = 0.2Vpp G = +2, VOUT = 2Vpp VOUT = 0.2V step VOUT = 2V step VOUT = 0.2V step VOUT = 2V step, G = -1 VOUT = 2Vpp, 5MHz VOUT = 2Vpp, 5MHz VOUT = 2Vpp, 5MHz > 100kHz NTSC (3.58MHz); AC-coupled NTSC (3.58MHz); AC-coupled Min. Typ. 70 28 11 11 80 2 45 64 58 57 12 0.08 0.16 1 10 1.4 3.5 30 100 100 0.4 0.5/2 Max. Units MHz MHz MHz ns ns % V/μs dBc dBc dB nV/√Hz % ° mV μV/°C μA nA/°C nA dB dB mA μs dB V V μA MΩ pF V dB V V mA mA Frequency Domain Response Time Domain Response Distortion/Noise Response DC Performance Disable Characteristics 5MHz, RL = 100Ω Disabled if pin is grounded or pulled below VOFF Enabled if pin is floating or pulled above VON DIS pin grounded 65 Vs-2.9 Vs-1.4 45 25 1 -5.3 to 4 DC, VCM = -5V to 3.5V RL = 1kΩ RL = 150Ω VOUT = 0V 100 ±4.8 +2.9,-4.23 +35,-25 +43,-33 Input Characteristics Output Characteristics VOUT IOUT ISC Output Voltage Swing Linear Output Current Short-Circuit Output Current © 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2 www.fairchildsemi.com 6 FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier Typical Performance Characteristics TA = 25°C, RL = 1kΩ to Vs/2 for Vs = 5V and 2.7V, RL = 1kΩ to GND for Vs = ±5V, G = 2 and Rf = Rg = 1kΩ, unless otherwise noted. 1 1 G=1 Normalized Gain (dB) -1 -2 -3 -4 -5 -6 -7 0.1 Normalized Gain (dB) 0 G = 10 G=5 G=2 0 -1 -2 -3 -4 -5 -6 -7 Vo = 0.2Vpp G = -10 G = -5 G = -2 G = -1 Vo = 0.2Vpp 1 10 100 0.1 1 10 100 Frequency (MHz) Frequency (MHz) Figure 1. Non-Inverting Freq. Response (±5V) Figure 2. Inverting Freq. Response (±5V) 1 1 G=1 Normalized Gain (dB) -1 -2 -3 -4 -5 -6 -7 0.1 Normalized Gain (dB) 0 G = 10 G=5 G=2 0 -1 -2 -3 -4 -5 -6 -7 Vo = 0.2Vpp G = -10 G = -5 G = -2 G = -1 Vo = 0.2Vpp 1 10 100 0.1 1 10 100 Frequency (MHz) Frequency (MHz) Figure 3. Non-Inverting Freq. Response (+5V) Figure 4. Inverting Freq. Response (+5V) 1 1 G=1 Normalized Gain (dB) -1 -2 -3 -4 -5 -6 -7 0.1 Normalized Gain (dB) 0 G = 10 G=5 G=2 0 -1 -2 -3 -4 -5 -6 -7 Vo = 0.2Vpp G = -10 G = -5 G = -2 G = -1 Vo = 0.2Vpp 1 10 100 0.1 1 10 100 Frequency (MHz) Frequency (MHz) Figure 5. Non-Inverting Freq. Response (+2.7V) Figure 6. Inverting Freq. Response (+2.7V) © 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2 www.fairchildsemi.com 7 FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier Typical Performance Characteristics - Continued TA = 25°C, RL = 1kΩ to Vs/2 for Vs = 5V and 2.7V, RL = 1kΩ to GND for Vs = ±5V, G = 2 and Rf = Rg = 1kΩ, unless otherwise noted. 1 1 Vo = 0.2Vpp Normalized Gain (dB) Normalized Gain (dB) 0 -1 -2 -3 -4 -5 -6 -7 0.1 1 10 100 1kΩ + 1kΩ 0 -1 -2 -3 -4 -5 -6 -7 0.1 1 10 Vo = 0.2Vpp RL = 50Ω RL = 150Ω RL = 1kΩ CL = 1000pF RS = 15Ω CL = 500pF RS = 20Ω CL = 100pF RS = 75Ω Rs CL RL RL = 5kΩ CL = 50pF RS = 75Ω CL = 10pF RS = 0Ω 100 Frequency (MHz) Frequency (MHz) Figure 7. Frequency Response vs. CL (+5V) Figure 8. Frequency Response vs. RL (+5V) 1 1 Normalized Gain (dB) -1 -2 -3 -4 -5 -6 -7 0.1 Normalized Gain (dB) 0 VO = 4Vpp VO = 2Vpp VO = 1Vpp 0 -1 -2 -3 -4 -5 -6 -7 VO = 4Vpp VO = 2Vpp VO = 1Vpp 1 10 100 0.1 1 10 100 Frequency (MHz) Frequency (MHz) Figure 9. Large Signal Freq. Response (±5V) Figure 10. Large Signal Freq. Response (+5V) 0.2 120 90 Gain Phase Normalized Gain (dB) 0 -0.1 -0.2 -0.3 -0.4 -0.5 0.1 1 10 100 Vo = 2Vpp RL = 150Ω VS = ±5V VS = 5V Open Loop Gain (dB) 0.1 Open Loop Phase (deg) 100 80 60 40 20 0 1 45 0 -45 -90 -135 -180 10 100 1k 10k 100k 1M 10M 100M 1G Frequency (MHz) Frequency (Hz) Figure 11. Gain Flatness vs. Frequency Figure 12. Open-Loop Gain and Phase (+5V) © 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2 www.fairchildsemi.com 8 FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier Typical Performance Characteristics - Continued TA = 25°C, RL = 1kΩ to Vs/2 for Vs = 5V and 2.7V, RL = 1kΩ to GND for Vs = ±5V, G = 2 and Rf = Rg = 1kΩ, unless otherwise noted. -30 -35 -40 -45 -50 -55 -60 -65 -70 -75 -80 -85 -90 -95 0.1 -30 -35 -40 -45 -50 -55 -60 -65 -70 -75 -80 -85 -90 -95 0.1 Harmonic Distortion (dBc) HD3 RL = 150Ω Harmonic Distortion (dBc) Vo = 2Vpp Vo = 2Vpp HD3 RL = 150Ω HD2 RL = 150Ω HD2 RL = 1kΩ HD3 RL = 1kΩ HD2 RL = 150Ω HD2 RL = 1kΩ HD3 RL = 1kΩ 1 5 1 5 Frequency (MHz) Frequency (MHz) Figure 13. HD vs. Frequency (±5V) Figure 14. HD vs. Frequency (+5V) -30 -35 -40 -45 -50 -55 -60 -65 -70 -75 -80 -85 -90 -95 0.5 Freq = 5MHz Freq = 1MHz Freq = 500kHz Freq = 100kHz -30 -35 -40 -45 -50 -55 -60 -65 -70 -75 -80 -85 -90 -95 0.5 Freq = 5MHz HD2 (dBc) HD3 (dBc) Freq = 1MHz Freq = 500kHz Freq = 100kHz 0.75 1 1.25 1.5 1.75 2 2.25 2.5 0.75 1 1.25 1.5 1.75 2 2.25 2.5 Amplitude (Vpp) Amplitude (Vpp) Figure 15. HD2 vs. VOUT (±5V) Figure 16. HD3 vs. VOUT (±5V) -30 -35 -40 -45 -50 -55 -60 -65 -70 -75 -80 -85 -90 -95 0.5 Freq = 5MHz Freq = 1MHz Freq = 500kHz Freq = 100kHz -30 -35 -40 -45 -50 -55 -60 -65 -70 -75 -80 -85 -90 -95 0.5 Freq = 5MHz HD2 (dBc) HD3 (dBc) Freq = 1MHz Freq = 500kHz Freq = 100kHz 0.75 1 1.25 1.5 1.75 2 2.25 2.5 0.75 1 1.25 1.5 1.75 2 2.25 2.5 Amplitude (Vpp) Amplitude (Vpp) Figure 17. HD2 vs. VOUT (+5V) Figure 18. HD3 vs. VOUT (+5V) © 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2 www.fairchildsemi.com 9 FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier Typical Performance Characteristics - Continued TA = 25°C, RL = 1kΩ to Vs/2 for Vs = 5V and 2.7V, RL = 1kΩ to GND for Vs = ±5V, G = 2, and Rf = Rg = 1kΩ, unless otherwise noted. 0.225 0.2 0.175 0.15 0.125 0.1 0.075 0.05 0.025 0 -0.025 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.25 2.0 1.75 1.5 1.25 1.0 0.75 0.5 0.25 0 -0.25 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Output Voltage (V) Time (μs) Output Voltage (V) Time (μs) Figure 19. Small Signal Pulse Response (+2.7V) Figure 20. Large Signal Pulse Response (+2.7V) 0.225 0.2 0.175 0.15 0.125 0.1 0.075 0.05 0.025 0 -0.025 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 -0.5 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Output Voltage (V) Time (μs) Output Voltage (V) Time (μs) Figure 21. Small Signal Pulse Response (+5V) Figure 22. Large Signal Pulse Response (+5V) 5.0 4.0 3.0 2.0 1.0 0 -1.0 -2.0 -3.0 -4.0 -5.0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.7 Output Voltage (0.5V/div) 0 0 5 10 15 20 25 30 35 40 45 50 Output Voltage (V) Time (μs) Time (μs) Figure 23. Large Signal Pulse Response (±5V) Figure 24. Output Swing: VS = +2.7V; G = 1 © 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2 www.fairchildsemi.com 10 FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier Typical Performance Characteristics - Continued TA = 25°C, RL = 1kΩ to Vs/2 for Vs = 5V and 2.7V, RL = 1kΩ to GND for Vs = ±5V, G = 2, and Rf = Rg = 1kΩ, unless otherwise noted. 7 0.7 7 0.7 0.6 0.5 0.4 0.3 2.35μs Disable Disable Pulse Output VIN = 0.25Vpp VIN = 0.25Vpp Disable Amplitude (V) Disable Amplitude (V) 6 5 4 3 2 1 0 -1 570ns Enable Enable Pulse 0.6 0.5 0.4 0.3 0.2 0.1 0 -0.1 6 5 4 3 2 1 0 -1 Output Amplitude (V) Output Amplitude (V) 0.2 0.1 0 -0.1 Output Time (0.25μs/div) Time (1μs/div) Figure 25. Enable Time to 10% Settling (+5V) Figure 26. Disable Time to 10% Settling (+5V) 0.2 0.15 0.2 0.15 Phase 0.2 0.15 0.2 0.15 Phase Differential Phase (deg) Differential Phase (deg) Differential Gain (%) 0.1 0.05 0 -0.05 -0.1 -0.15 -0.2 -0.7 0.1 0.05 Differential Gain (%) 0.1 0.05 0 -0.05 -0.1 -0.15 -0.2 -0.7 0.1 0.05 0 -0.05 -0.1 Gain Gain 0 -0.05 -0.1 AC-Coupled into 220μF RL = 150Ω -0.15 -0.2 0.1 0.3 0.5 0.7 AC-Coupled into 220μF RL = 150Ω -0.15 -0.2 0.1 0.3 0.5 0.7 -0.5 -0.3 -0.1 -0.5 -0.3 -0.1 Input Amplitude (V) Input Amplitude (V) Figure 27. Differential Gain and Phase (±5V) Figure 28. Differential Gain and Phase (±2.5V) 100 120 Input Voltage Noise (nV/√Hz) 80 70 60 50 40 30 20 10 0 0.001 0.01 0.1 1 10 100 PSRR and CMRR (dB) 90 100 80 60 CMRR PSRR 40 20 0 -20 1 10 100 1k 10k 100k 1M 10M Frequency (MHz) Frequency (Hz) Figure 29. Input Voltage Noise (+5V) Figure 30. PSRR and CMRR (+5V) © 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2 www.fairchildsemi.com 11 FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier Application Information Driving Capacitive Loads The F requency Response vs. C L F igure 7 on page 8, illustrates the response of the FHP3131. A small series resistance (Rs) at the output of the amplifier, illustrated in Figure 31, improves stability and settling performance. Rs values in the F requency Response vs. C L figure were chosen to achieve maximum bandwidth with less than 1dB of peaking. For maximum flatness, use a larger Rs. Output Current (V) 6 4 2 0 -2 -4 -6 -0.045 -0.030 -0.015 + Rg Rf Rs CL RL 0 0.015 0.030 0.045 Output Voltage (V) Figure 32. Output Current vs. Output Voltage Power Dissipation The maximum internal power dissipation allowed is directly related to the maximum junction temperature. If the maximum junction temperature exceeds 150°C for an extended time, device failure may occur. While the FHP3131 is short-circuit protected, this may not guarantee that the maximum junction temperature (+150°C) is not exceeded under all conditions. RMS Power Dissipation can be calculated using the following equation: Power Dissipation = Is * (Vs+ - Vs-) + (Vs+ - VOUT(RMS)) * IOUT(RMS) EQ. 1 where Is is the supply current, Vs+ is the positive supply pin voltage, Vs- is the negative supply pin voltage, VOUT(RMS) is the RMS output voltage, and IOUT(RMS) is the RMS output current delivered to the load. Follow the maximum power derating curves shown in Figure 33 below to ensure proper operation. Maximum Power Dissipation (W) 0.7 0.6 0.5 0.4 0.3 MicroPak-6 SOT23-6 Figure 31. Typical Topology for Driving Capactive Loads Enable/Disable Function The FAN3131 offers an active-low disable pin that can be used to lower its supply current. Leave the pin floating to enable the part. Pull the disable pin to the negative supply (which is ground in a single-supply application) to disable the output. VON and VOFF thresholds are listed in the table below. During the disable condition, the nominal supply current drops to below 33 μ A and the output is at high impedance with about 2.8pF capacitance. At 2.7V VON Vs-1.1 VOFF Vs-1.75 At 5V VON Vs-1.2 VOFF Vs-1.9 At ±5V VON Vs-1.4 VOFF Vs-2.9 ±5V Drive Capability Figure 32 illustrates the drive capability of the FHP3131 during ±5V supply voltage operation. The two examples below demonstrate the use of this graph: 1. To adequately drive 2Vpp into a 150Ω ground-centered load, the FHP3131 must supply ±6.67mA of output current. From the graph, the points created by (-6.7mA, -1V) and (+6.7mA, +1V) both lie within the linear region of the curve. So, the FHP3131 can drive 2Vpp into a 150Ω ground-centered load. 2. To adequately drive 5Vpp into a 100Ω load, the FHP3131 must supply ±25mA of output current. From the graph, the point created by (+25mA, +2.5V) lies within the linear region of the curve; however, the point created by (-25mA, -2.5V) does not. So, the FHP3131 is not capable of driving 5Vpp into a 100Ω ground-centered load at ±5V. 0.2 0.1 0 -40 -20 0 20 40 60 80 Ambient Temperature (°C) Figure 33. Maximum Power Derating © 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2 www.fairchildsemi.com 12 FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier Overdrive Recovery For an amplifier, an overdrive condition occurs when the output and/or input ranges are exceeded. The recovery time varies based on whether the input or output is overdriven and by how much the ranges are exceeded. The FHP3131 typically recovers in less than 25ns from an overdrive condition. Figure 34 shows the FHP3131 in an overdriven condition. 5.0 4.0 Vs = 5V G=5 RL = 1k VIN = 1.5Vpp Output Amplitude (V) 3.0 2.0 1.0 0 -1.0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Input Time (μs) Figure 34. Overdrive Recovery Layout Considerations General layout and supply bypassing play major roles in high-frequency performance. Fairchild has evaluation boards to guide high-frequency layout and aid device testing and characterization. Follow the guidelines below as a basis for high-frequency layout: ■ Include 6.8μF and 0.01μF ceramic capacitors. ■ Place the 6.8μF capacitor within 0.75 inches of the power pin. ■ Place the 0.01μF capacitor within 0.1 inches of the power pin. ■ Remove the ground plane under and around the part, especially near the input and output pins, to reduce parasitic capacitance. ■ Minimize all trace lengths to reduce series inductances. Refer to the evaluation board layouts shown in Figures 36-39 for more information. Evaluation Board Schematic Evaluation Board Information The following evaluation boards are available to aid testing and layout of these devices: Figure 35. KEB002/KEB029 Schematic Evaluation Board KEB002 KEB029 Products FHP3131IS6X FHP3131IL6X © 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2 www.fairchildsemi.com 13 FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier Evaluation Board Layouts Figure 36. KEB002 (Top-side) Figure 38. KEB029 (Top-side) Figure 37. KEB002 (Bottom-side) Figure 39. KEB029 (Bottom-side) © 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2 www.fairchildsemi.com 14 FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier Mechanical Dimensions C D 2.9 1.9 0.15 C A-B 2X SYMM C L (0.95) D (1.00MIN) 1.4 (0.95) A C D 1.6 2.8 (2.60) (0.70MIN) 0.15 C D 2X PIN 1 INDEX AREA 0.15 C 0.95 2X 3 TIPS B 2X 0.3-0.5 0.20 C A-B D (1.90) LAND PATTERN RECOMMENDATION SEE DETAIL A 1.45 MAX 1.30 0.95 C 0.15 0.05 6X 0.10 C NOTES: 0.20 0.08 R0.10MIN GAGE PLANE A. THIS PACKAGE CONFORMS TO JEDEC MO-178, VARIATION AB. B. ALL DIMENSIONS ARE IN MILLIMETERS. C. DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. D. DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS. E. DIMENSIONS AND TOLERANCING AS PER ASME Y14.5M-1994 R0.10MIN 0.25 8° 0° 0.55 0.35 SEATING PLANE 0.60 REF MA06EREVA DETAIL A SCALE: 2:1 Figure 40. 6-Lead SOT23 Package © 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2 www.fairchildsemi.com 15 FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier Mechanical Dimensions 2X 0.05 C 1.45 B 2X 0.05 C (1) 1.00 (0.49) 5X (0.75) (0.52) 1X (0.30) 6X RECOMMENED LAND PATTERN 0.05 C 0.45 0.35 TOP VIEW 0.55MAX 0.05 C 0.05 0.00 C 0.25 0.15 6X 0.10 0.05 A PIN 1 0.10 0.00 6X CBA C DETAIL A 1.0 0.40 0.30 0.35 5X 0.25 0.40 5X 0.30 (0.05) 6X 0.5 BOTTOM VIEW (0.13) 4X 0.075 X 45 CHAMFER DETAIL A PIN 1 TERMINAL Notes: 1. CONFORMS TO JEDEC STANDARD M0-252 VARIATION UAAD 2. DIMENSIONS ARE IN MILLIMETERS 3. DRAWING CONFORMS TO ASME Y14.5M-1994 MAC06AREVC Figure 41. 6-Lead MicroPak™ Package © 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2 www.fairchildsemi.com 16 FHP3131 0.4mA, 2.5V to 12V, 70MHz Rail-to-Rail Amplifier TRADEMARKS The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. ACEx Across the board. Around the world. ActiveArray Bottomless Build it Now CoolFET CROSSVOLT CTL™ Current Transfer Logic™ DOME 2 E CMOS ® EcoSPARK EnSigna FACT Quiet Series™ ® FACT ® FAST FASTr FPS ® FRFET GlobalOptoisolator GTO ® HiSeC i-Lo ImpliedDisconnect IntelliMAX ISOPLANAR MICROCOUPLER MicroPak MICROWIRE MSX MSXPro OCX OCXPro ® OPTOLOGIC ® OPTOPLANAR PACMAN POP ® Power220 ® Power247 PowerEdge PowerSaver PowerTrench Programmable Active Droop ® QFET QS QT Optoelectronics Quiet Series RapidConfigure RapidConnect ScalarPump SMART START ® SPM SuperFET SuperSOT -3 SuperSOT -6 SuperSOT -8 TCM ® The Power Franchise ™ ® TinyLogic TINYOPTO TinyPower TinyWire TruTranslation SerDes ® UHC UniFET VCX Wire ® TinyBoost TinyBuck DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. THESE SPECIFICATIONS DO NOT EXPAND THE TERMS OF FAIRCHILD’S WORLDWIDE TERMS AND CONDITIONS, SPECIFICALLY THE WARRANTY THEREIN, WHICH COVERS THESE PRODUCTS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Advance Information Preliminary Product Status Formative or In Design First Production Definition This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. This datasheet contains preliminary data; supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice to improve design. This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice to improve design. This datasheet contains specifications on a product that has been discontinued by Fairchild Semiconductor. The datasheet is printed for reference information only. Rev. I23 2. A critical component in any component of a life support, device, or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. No Identification Needed Full Production Obsolete Not In Production © 2007 Fairchild Semiconductor Corporation FHP3131 Rev. 1.0.2 www.fairchildsemi.com 17