NJM2712

NJM2712 ULTRA HIGH SPEED SINGLE OPERATIONAL AMPLIFIER s GENERAL DESCRIPTION The NJM2712 is an ultra high speed dual operational amplifier. It can swings 260V/µs high slew rate and 1GHz gain band width product(10MHz typ. at 40dB) at ±2.5V. It is suitable for pickup circuit of CD-R/RW or DVDR/RW, wideband video system, high resolution scanner or FAX, high speed telecommunications, and any other high speed signal processing system. s FEATURES q Operating Voltage q Operating Current q High Slew Rate q Gain Bandwidth Product Bandwidth q Unity Gain Bandwidth q Input Offset Voltage q Maximum Output Voltage q Open Loop Voltage Gain q Bipolar Technology q Package Outline s PIN CONFIGURATION NJM2712M NJM2712RB1 (Top View) P IN FUNCTION s PACKAGR OUTLINE NJM2712M NJU2712RB1 (±2.0 to ±4.5V) (3.8mA typ. at V+/V-=±2.5V) (260V/µs typ.) (1GHz typ.) (10MHz typ. at 40dB) (180MHz typ.) (7mV max.) (±1.5V typ. at RL=1kΩ) (75dB typ.) DMP8,TVSP8 1 2 3 4 + 8 7 6 5 1.OUTPUT1 2.-INPUT1 3.+INPUT1 4.V 5 .+INPUT2 6.-INPUT2 7.OUTPUT2 8.V+ +- -1- NJM2712 s ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL Supply Voltage V+ Differential Input Voltage VID Power Dissipation PD Operating Temperature Range Topr Storage Temperature Range Tstg sRECOMMENDED OPERATING CONDITION PARAMETER SYMBOL Operating Voltage Range V /V + - RATINGS 10 ±2 200 -40 to +85 -50 to +150 (Ta=25°C) UNIT V V mW °C °C ( Ta=25°C) MAX UNIT 4.5 V TEST CONDITION MIN 2.0 TYP 2.5 s DC CHARACTERISTICS PARAMETER Operating Current Input Offset Voltage Input Bias Current Input Offset Current Open Loop Voltage Gain Input Common Mode Voltage Range Common Mode Rejection Supply Voltage Rejection Maximum Output Voltage s AC CHARACTERISTICS PARAMETER Bandwidth Unity Gain Bandwidth Phase Margin Equivalent Input Noise Voltage SYMBOL ICC VIO IB IIO Av VICM CMR +SVR -SVR VOM TEST CONDITION No Signal ( V+/V -=±2.5V, Ta=25°C) MIN TYP MAX UNIT 65 ±1.3 3.8 2.0 2 350 75 ±1.5 60 60 60 ±1.5 6.8 7.0 7 900 mA mV µA nA dB V dB dB dB V RL=2kΩ -1V≤VCM≤+1V 2.5V≤V +≤5V, RL=2kΩ -5V≤V -≤-2.5V, RL=2kΩ RL=1kΩ 50 50 50 ±1.2 ( V+/V -=±2.5V, Ta=25°C) SYMBOL BW fT φM VNI TEST CONDITION Av=40dB,Rf=1.98kΩ ,RL=∞ CL=10pF Av=40dB,Rg=20Ω,Rf=1.98kΩ RL=∞,CL=10pF Av=40dB,Rg=20Ω,Rf=1.98kΩ RL=∞,CL=10pF MIN TYP 10 180 38 6.8 MAX UNIT MHz MHz deg nV/√Hz s TRANSIENT CHARACTERISTICS PARAMETER SYMBOL Slew Rate +SR -SR TEST CONDITION Av=6dB,Rf=1kΩ,Rg=1kΩ RL=∞,CL=10pF ( V+/V -=±2.5V, Ta=25°C) MIN TYP MAX UNIT 260 260 V/µs V/µs -2- NJM2712 s 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 20dB, use a compensation capacitor (CF: about 5pF), parallel with the feedback resistor RF to avoid oscillation. 3.Recommended feedback resistor is less than 2k-ohom 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 20dB, 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 100pF. The oscillation margin may be affected by the total load capacitance. non-inverting amplifier DUT RF CL CF RG RL inverting amplifier CF RF RG DUT CL RL -3- NJM2712 s TYPICAL CHARACTERISTICS Operating Current vs.Operating Voltage Vin=0V,Ta=25℃ Operating Current vs. Ambient Temperature 6 5 Operating Current [mA] 6 5 Operating Current [mA] Vin=0V 4 3 2 1 0 0±0 1 ±1 2 ±2 3 ±3 4 ±4 ±55 Operating Voltage [V] 4 V+/V-= ± 4.5V 3 2 1 0 -50 0 50 100 150 Ambient Temperature[°C] V+/V-= ± 2.5V V+/V-= ± 2.0V Input Offset Voltage vs. Ambient Temperature 0.5 Input Offset Voltage [mV] V /V =±2.5V + - Input Offset Current vs. Ambient Temperature V /V =±2.5V + - 800 600 Input Offset Current[nA] 0 -0.5 -1 -1.5 -2 -50 0 50 100 150 Ambient Temperature [°C] 400 200 0 -200 -400 -600 -800 -50 0 50 100 150 Ambient Temperature [°C] Input Bias Current vs. Ambient Temperature Maximum Output Voltage Swing vs. Operating Voltage 5 Maximum Output Voltage Swing [V] Vin=±300ｍV,RL=1kΩ ,Ta=25°C 0 -0.5 Input Offset Current [μA] V /V =±2.5V + - 4 3 2 1 0 -1 -2 -3 -4 -5 ±0 0 ±1 1 ±2 ±3 ±4 2 3 4 Operating Voltage [V] ±5 5 -1 -1.5 -2 -2.5 -3 -3.5 -50 0 50 100 150 Ambient Temperature [°C] -4- NJM2712 Maximum Output Voltage Swing vs. Ambient Temperature 2 Maximum Output Voltage Swing [V] 1.5 Voltage Gain[dB] V /V =±2.5V + - Voltage Gain vs. Ambient Temperature V /V =±2.5V,RL=2kΩ + - 90 80 70 60 50 40 30 20 10 0 -50 0 50 100 150 1 0.5 0 -0.5 -1 -1.5 -2 -50 0 50 100 150 Ambient Temperature [°C] Common Mode Rejection Ratio vs. Ambient Temperature Ambient Temperature [°C] V+ Supply Voltage Rejection Ratio vs. Ambient Temperature 80 V Supply Voltage Rejection Ratio [dB] 70 Common Mode Rejection Ratio[dB] V /V =±2.5V,-1V