LT1226C

LT1226 Low Noise Very High Speed Operational Amplifier FEATURES s s s s s s s s s s s DESCRIPTIO Gain of 25 Stable 1GHz Gain Bandwidth 400V/µs Slew Rate 2.6nV/√ Hz Input Noise Voltage 50V/mV Minimum DC Gain, RL = 500Ω 1mV Maximum Input Offset Voltage ±12V Minimum Output Swing into 500Ω Wide Supply Range ±2.5V to ±15V 7mA Supply Current 100ns Settling Time to 0.1%, 10V Step Drives All Capacitive Loads The LT1226 is a low noise, very high speed operational amplifier with excellent DC performance. The LT1226 features low input offset voltage and high DC gain. The circuit is a single gain stage with outstanding settling characteristics. The fast settling time makes the circuit an ideal choice for data acquisition systems. The output is capable of driving a 500Ω load to ±12V with ±15V supplies and a 150Ω load to ±3V on ±5V supplies. The circuit is also capable of driving large capacitive loads which makes it useful in buffer or cable driver applications. The LT1226 is a member of a family of fast, high performance amplifiers that employ Linear Technology Corporation’s advanced bipolar complementary processing. APPLICATI s s s s s s S Wideband Amplifiers Buffers Active Filters Video and RF Amplification Cable Drivers Data Acquisition Systems TYPICAL APPLICATI V+ Photodiode Preamplifier, AV = 5.1kΩ, BW = 15MHz Gain of +25 Pulse Response + 51Ω LT1226 – 5.1k 51Ω LT1226 TA01 U LT1226 TA02 UO UO 1 LT1226 ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO TOP VIEW NULL –IN +IN V– 1 2 3 4 8 7 6 5 NULL V+ OUT NC Total Supply Voltage (V+ to V –) ............................... 36V Differential Input Voltage ......................................... ± 6V Input Voltage ............................................................ ±VS Output Short Circuit Duration (Note 1) ............ Indefinite Operating Temperature Range LT1226C ................................................ 0°C to 70°C Maximum Junction Temperature Plastic Package .............................................. 150°C Storage Temperature Range ................. – 65°C to 150°C Lead Temperature (Soldering, 10 sec.)................. 300°C ORDER PART NUMBER LT1226CN8 LT1226CS8 S8 PART MARKING 1226 N8 PACKAGE S8 PACKAGE 8-LEAD PLASTIC DIP 8-LEAD PLASTIC SOIC LT1226 PO01 ELECTRICAL CHARACTERISTICS SYMBOL VOS IOS IB en in RIN CIN PARAMETER Input Offset Voltage Input Offset Current Input Bias Current Input Noise Voltage Input Noise Current Input Resistance Input Capacitance Input Voltage Range + Input Voltage Range – CMRR PSRR AVOL VOUT IOUT SR GBW tr, tf Common-Mode Rejection Ratio Power Supply Rejection Ratio Large Signal Voltage Gain Output Swing Output Current Slew Rate Full Power Bandwidth Gain Bandwidth Rise Time, Fall Time Overshoot Propagation Delay ts Settling Time Differential Gain Differential Phase RO IS Output Resistance Supply Current VS = ±15V, TA = 25°C, VCM = 0V unless otherwise noted. MIN TYP 0.3 100 4 MAX 1.0 400 8 UNITS mV nA µA nV/√Hz pA/√Hz MΩ kΩ pF V – 12 V dB dB V/mV ±V mA V/µs MHz GHz ns % ns ns % Deg Ω 9 mA CONDITIONS (Note 2) f = 10kHz f = 10kHz VCM = ±12V Differential 24 2.6 1.5 40 15 2 12 14 – 13 103 110 150 13.3 40 400 6.4 1 5.5 35 5.5 100 0.7 0.6 3.1 7 VCM = ±12V VS = ± 5V to ±15V VOUT = ±10V, RL = 500Ω RL = 500Ω VOUT = ±12V (Note 3) 10V Peak, (Note 4) f = 1MHz AVCL = + 25,10% to 90%, 0.1V AVCL = + 25, 0.1V 50% VIN to 50% VOUT 10V Step, 0.1%, AV = – 25 f = 3.58MHz, AV = +25, RL = 150Ω f = 3.58MHz, AV = +25, RL = 150Ω AVCL = +25, f = 1MHz 94 94 50 12.0 24 250 2 U W U U WW W LT1226 ELECTRICAL CHARACTERISTICS VS = ±5V, TA = 25°C, VCM = 0V unless otherwise noted. SYMBOL VOS IOS IB PARAMETER Input Offset Voltage Input Offset Current Input Bias Current Input Voltage Range + Input Voltage Range – CMRR AVOL VOUT IOUT SR GBW tr, tf Common-Mode Rejection Ratio Large Signal Voltage Gain Output Voltage Output Current Slew Rate Full Power Bandwidth Gain Bandwidth Rise Time, Fall Time Overshoot Propagation Delay ts IS Settling Time Supply Current VCM = ± 2.5V VOUT = ± 2.5V, RL = 500Ω VOUT = ± 2.5V, RL = 150Ω RL = 500Ω RL = 150Ω VOUT = ± 3V (Note 3) 3V Peak, (Note 4) f = 1MHz AVCL = +25, 10% to 90%, 0.1V AVCL = +25, 0.1V 50% VIN to 50% VOUT – 2.5V to 2.5V, 0.1%, AV = – 24 94 50 3.0 3.0 20 2.5 CONDITIONS (Note 2) MIN TYP 1.0 100 4 4 –3 103 100 75 3.7 3.3 40 250 13.3 700 8 25 8 60 7 9 –2.5 MAX 1.4 400 8 UNITS mV nA µA V V dB V/mV V/mV ±V ±V mA V/µs MHz MHz ns % ns ns mA ELECTRICAL CHARACTERISTICS SYMBOL VOS PARAMETER Input Offset Voltage Input VOS Drift IOS IB CMRR PSRR AVOL VOUT IOUT SR IS Input Offset Current Input Bias Current Common-Mode Rejection Ratio Power Supply Rejection Ratio Large Signal Voltage Gain Output Swing Output Current Slew Rate Supply Current CONDITIONS 0°C ≤ TA ≤ 70°C, VCM = 0V unless otherwise noted. MIN TYP 0.3 1.0 6 100 4 92 92 35 35 12.0 3.0 24 20 250 103 110 150 100 13.3 3.3 40 40 400 7 10.5 MAX 1.3 1.8 600 9 UNITS mV mV µV/°C nA µA dB dB V/mV V/mV ±V ±V mA mA V/µs mA VS = ±15V, (Note 2) VS = ± 5V, (Note 2) VS = ±15V and VS = ± 5V VS = ±15V and VS = ± 5V VS = ±15V, VCM = ±12V and VS = ± 5V, VCM = ± 2.5V VS = ± 5V to ± 15V VS = ±15V, VOUT = ± 10V, RL = 500Ω VS = ± 5V, VOUT = ± 2.5V, RL = 500Ω VS = ±15V, RL = 500Ω VS = ± 5V, RL = 500Ω or 150Ω VS = ±15V, VOUT = ± 12V VS = ± 5V, VOUT = ± 3V VS = ±15V, (Note 3) VS = ±15V and VS = ± 5V Note 1: A heat sink may be required to keep the junction temperature below absolute maximum when the output is shorted indefinitely. Note 2: Input offset voltage is tested with automated test equipment in