ULTRA HIGH SPEED SINGLE OPERATIONAL AMPLIFIER

Transcription

1 NJM271 ULTRA HIGH SPEED SINGLE OPERATIONAL AMPLIFIER GENERAL DESCRIPTION The NJM271 is an ultra high speed hex operational amplifier. It can swings 26V/µs high slew rate and 1GHz gain band width product(1mhz typ. at 4dB) at 5V. It is suitable for telecommunication related system, digital broadcasting system, high quality scanner and any other high speed signal processing system. PACKAGR OUTLINE NJM271M NJM271V FEATURES Operating Voltage Operating Current High Slew Rate Bandwidth Product Bandwidth Unity Bandwidth Input Offset Voltage Maximum Output Voltage Open Loop Voltage Bipolar Technology Package Outline (±2. to ±4.5V) (11.4mA typ. at V + /V - =±2.5V) (26V/µs typ.) (1GHz typ.) (1MHz typ. at 4dB) (18MHz typ.) (7mV max.) (±1.5V typ. at R L =1kΩ) (75dB typ.) DMP2,SSOP2 PIN CONFIGURATION V + A B C F E D V Pin Function 1. A OUTPUT 2. A -INPUT 3. A +INPUT 4. V + 5. B OUTPUT 6. B -INPUT 7. B +INPUT 8. C OUTPUT 9. C -INPUT 1. C +INPUT 11. D OUTPUT 12. D -INPUT 13. D +INPUT 14. E OUTPUT 15. E -INPUT 16. E +INPUT 17. V F OUTPUT 19. F -INPUT 2. F +INPUT NJM271E NJM271V (TOP VIEW) -1-

2 NJM271 ABSOLUTE MAXIMUM RATINGS (Ta=25 C) PARAMETER SYMBOL RATINGS UNIT Supply Voltage V + 1 V Differential Input Voltage V ID ±2 V Power Dissipation P D (DMP2,SSOP2)375 mw Operating Temperature Range Topr -4 to +85 C Storage Temperature Range Tstg -5 to +15 C DC CHARACTERISTICS ( V + /V - =±2.5V, Ta=25 C) PARAMETER SYMBOL TEST CONDITION MIN TYP MAX UNIT Operating Voltage Range V + /V V Operating Current I CC No Signal ma Input Offset Voltage V IO mv Input Bias Current I B µa Input Offset Current I IO na Open Loop Voltage Av R L =2kΩ db Input Common Mode Voltage Range V ICM ±1.3 ±1.5 - V Common Mode Rejection CMR -1V V CM +1V db +SVR 2.5V V + 5V, R L =2kΩ db Supply Voltage Rejection -SVR -5V V V, R L =2kΩ db Maximum Output Voltage V OM R L =1kΩ ±1.2 ±1.5 - V AC CHARACTERISTICS ( V + /V - =±2.5V, Ta=25 C) PARAMETER SYMBOL TEST CONDITION MIN TYP MAX UNIT Bandwidth Unity Bandwidth Margin Equivalent Input Noise Voltage BW f T φ M Av=4dB,R f =1.98kΩ,R L = C L =1pF Av=4dB,Rg=2Ω,R f =1.98kΩ R L =,C L =1pF Av=4dB,Rg=2Ω,R f =1.98kΩ R L =,C L =1pF MHz MHz deg V NO nv/ Hz TRANSIENT CHARACTERISTICS ( V + /V - =±2.5V, Ta=25 C) PARAMETER SYMBOL TEST CONDITION MIN TYP MAX UNIT +SR Av=6dB,R V/µs Slew Rate f =1kΩ,Rg=1kΩ -SR R L =,CL=1pF V/µs - 2 -

3 NJM271 Note: non-inverting amplifier 1.The closed gain should be 6dB or higher to prevent the oscillation. Unity gain follower application may cause the oscillation. 2.When the closed gain is lower than 2dB, use a compensation capacitor (CF: about 5pF), parallel with the feedback resistor RF to avoid oscillation. 3.Recommended feedback resistor is less than 2kΩ to keep the flatness of the frequency response. 4.Minimize the load capacitor for the better performance. A large load capacitor CL reduces the frequency response and causes oscillation or ringing. inverting amplifier 1.When the closed gain is lower than 2dB, use a compensation capacitor (CF; recommended from 1pF to 5pF), parallel with the feedback resistor RF to avoid oscillation. 2.Minimize the feedback resistor to keep the frequency response and the slew rate. (recommended about 1k-ohom) The proper compensation capacitor CF can counteract oscillation even with a large feedback resistor RF. 3.Total load capacitance should be not more than 1pF. The oscillation margin may be affected by the total load capacitance. non-inverting amplifier DUT RF RG CF CL RL inverting amplifier CF RF RG DUT CL RL - 3 -

4 NJM271 TYPICAL CHARACTRERISTICS Supply Current vs. Supply Voltage Supply Current 15 V IN =No Signal,G V =6dB,R S =5Ω R F =1kΩ,R G =1kΩ,R L =2kΩ,Ta=+25 o C 15 V + /V - =±2.5V,V IN =No Signal,G V =6dB R S =5Ω,R F =1kΩ,R G =1kΩ,R L =2kΩ Supply Current [ma] Supply Current [ma] Supply Voltage ±V [V] Input Offset Voltage Input Bias Current 2 3 Input Offset Voltage [mv] Input Bias Current [ua] Input Offset Current Common Mode Rejection Ratio 5 7 Input Offset Current [na] 4 35 Common Mode Rejection Ratio [db]

5 NJM271 TYPICAL CHARACTRERISTICS V + Common Mode Rejection Ratio [db] V + Common Mode Rejection Ratio V - Common Mode Rejection Ratio [db] V - Common Mode Rejection Ratio Maximum Output Voltage vs. Load Resistance V + /V - =±2.5V, V IN =+1V or -1V, G V =open R S =, R F =, R G =Ω, Ta=+25 o C Maximum Output Voltage [V] k 1 k 1k 1k Load Resistance [Ω] - 5 -

6 NJM271 TYPICAL CHARACTRERISTICS 1. Pulse Responce V + /V - =±2.5V,f=5MHz,V O =2VPP,G V =6dB,R T =5Ω, R F=1kΩ,C F=5pF,R G=1kΩ,R L=2kΩ,C L=1pF,Ta= Pulse Response (with capacitive load) V + /V - =±2.5V,f=5MHz,V O =2VPP,G V =6dB, R T =5Ω,R F =1kΩ,C F =5pF,R G =1kΩ,Ta=+25 CL=1pF CL=1pF. 3. Input Voltage[V] Output Voltage[V] Output Voltage[V] 1.. CL=open Time [1ns/div] Time [1ns/div] 2. Pulse Response (correlation with RL) V + /V - =±2.5V,f=5MHz,V O =2V PP,G V =6dB,R T =5Ω, R F =1kΩ,C F =5pF,R G =1kΩ,C L =1pF,Ta=+25 RL=open 2. Pulse Response (correlation with Ta) V + /V - =±2.5V,f=5MHz,V O =2VPP,G V =6dB,R T =5Ω, R F =1kΩ,C F =5pF,R G =1kΩ,C L =1pF,Ta=+25 RL=2kΩ Output Voltage [V]. RL=1kΩ Output Voltage [V]. Ta= Ta= Time [1ns/div] Voltage vs. Frequency V + /V - =±2.5V,V IN =.2Vpp,G V =4dB,R T =5Ω, R F =1.98kΩ,R G =2Ω,C F =5pF,R L =2kΩ,C L =1pF,Ta= E+5 1k 1k 1M 1.E+6 1M 1M 1M 1.E+7 1M 1G 1.E+8 1M 1.E+9 1G Voltege vs. Frequency (with Capacitive Load) V + /V - =±2.5V,V IN =.2Vpp,G V =4dB,R T =5Ω, R F =1.98kΩ,R G =2Ω,C F =5pF,R L =2kΩ,Ta=+25 CL=1pF CL=1pF CL=open Ta= Time [1ns/div] E+5 1k 1.E+6 1M 1.E+7 1M 1.E+8 1M 1.E+9 1G 9-6 -

7 NJM271 TYPICAL CHARACTRERISTICS Voltage vs. Frequency (correlation with RL) V + /V - =±2.5V,V IN =.2Vpp,G V =4dB,R T =5Ω, R F =1.98kΩ,R G =2Ω,C F =5pF,C L =1pF,Ta=+25 RL=1kΩ RL=open RL=2kΩ E+5 1k 1.E+6 1M 1.E+7 1M 1.E+8 1M 1.E+91G Voltage vs. Frequency (correlation with Ta) V + /V - =±2.5V,V IN =.2Vpp,G V =4dB,R T =5Ω, R F =1.98kΩ, R G =2Ω,C F =5pF,R L =open,c L =1pF Ta=+25 Ta=+85 Ta=-4 Ta=-4 Ta=+25 Ta= E+5 1k 1.E+6 1M 1.E+7 1M 1.E+8 1M 1.E+9 1G Voltage vs. Frequency(with Capacitive Load) V + /V - =±2.5V,V IN =.2Vpp,G V =2dB,R T =5Ω, R F =1kΩ,C F =5pF,R G =11Ω,R L =open,ta=+25 CL=1pF CL=1pF CL=1pF E+5 1k 1.E+6 1M 1.E+7 1M 1.E+8 1M 1.E+91G Voltage vs. Frequency (with Capacitive Load) V + /V - =±2.5V,V IN =.2Vpp,G V =6dB,R T =5Ω, R F =1kΩ,C F =5pF,R G =1kΩ,R L =open,ta=+25 CL=1pF CL=1pF CL=5pF CL=1pF CL=open CL=5pF CL=1pF CL=open E+5 1k 1.E+6 1M 1.E+7 1M 1.E+8 1M 1.E+9 1G 9-7-

8 NJM271 MEASUREMENT CIRCUIT DUT RF RG CF CL RL [CAUTION] The specifications on this databook are only given for information, without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights