NJM2723E

NJM2723 High Speed Current Feedback Operational Amplifier ■ General Description The NJM2723 is a high speed, wide bandwidth and high output current feedback operational amplifier. Driving 150Ω load can expand the versatility of several multimedia applications. Current feedback technology has wide bandwidth and Low supply current. With a 75MHz at G=+2, 24MHzat G=+10, high slew rate of 2000V/µs, second harmonic distortion -65dB and settling time of 50ns(0.1%) The NJM2723 makes it ideal for high frequency amplifier, active filter and pulse amplifier applications. ■ Features High Speed ●Bandwidth 75MHz (−3dB, G=+2) ●Bandwidth 24MHz (−3dB, G=+10) ●Slew Rate 2000V/µs For Video Applications (V+/V−=±5V) ●Bandwidth 52MHz (−3dB, G=+2) ●Bandwidth 8MHz (0.1dB, G=+2) ●Differential Gain 0.05% ●Differential Phase 0.25deg ●Settling Time 50ns (0.1%, G=+2) Low Noise ●Voltage Noise 6nV/√Hz (@1kHz) ●Current Noise 13pA/√Hz (@1kHz) ●THD −60dBc (@10MHz) ●Specified for ±5V and ±15V operation ●150Ω Drive Capability ●Output Voltage ±3.5V min. (RL=150Ω, V+/V−=±15V) ±2.4V min. (RL=150Ω, V+/V−=±5V) ●Supply Range ±3.5V~±17.5V ●Supply Current 5mA max. ■ Applications ●High frequency amplifier ●Active Filter ●150Ωcable driver ●Video amplifier 150ΩDrive High Slew Rate OP−AMP Lineup (Single) SR=250V/µs SR=500V/µs SR=2000V/µs Voltage Feedback NJM2720 NJM2721 Current Feedback NJM2723 ■ Package Outline NJM2723D NJM2723E ORDER INFORMATION Parts NJM2723D NJM2723E Package DIP8 EMP8 ■ Pin Configuration ( Top View ) N.C. -INPUT +INPUT V1 2 3 4 8 7 6 5 N.C. V+ OUTPUT N.C. Ver.2009-10-28 -1- NJM2723 ■ ABSOLUTE MAXIMUM RATINGS (Ta=25ºC, unless otherwise noted.) PARAMETER Supply Voltage Common Mode Input Voltage Range Differential Input Voltage Range Power Dissipation (Note4) SYMBOL VDD VICM VID PD RATING ±18 ±18(Note1) ±3(Note1) DIP8: 500 EMP8: 375 / 625 (Note2) / 875 (Note3) UNIT V V V mW °C °C Operating Temperature Range Topr -40~+85 Storage Temperature Range Tstg -50~+150 (Note1) For supply voltage less than ±18V, the absolute maximum rating is equal to the supply voltage. (Note2) On the PCB "EIA/JEDEC (114.3×76.2×1.6mm, 2 layers, FR-4)" (Note3) On the PCB "EIA/JEDEC (114.3×76.2×1.6mm, 4 layers, FR-4)" (Note4) See Figure “Power Dissipation Derating Curve" when ambient temperature is over 25ºC. Power Dissipation Derating Curve 1000 900 Power Dissipation Pd (mW) EMP8(Note3) 800 700 600 500 400 300 200 100 0 5 15 25 35 45 55 65 75 85 95 105 Ambient Temperature Ta (ºC) EMP8 EMP8(Note2) DIP8 ∆Pd (mW/°C) Package DIP8 -4.0 EMP8 -3.0 -5.0 EMP8(Note2) -7.0 EMP8(Note3) ■RECOMMENDED OPERATING VOLTAGE (Ta=25ºC) PARAMETER Supply Voltage SYMBOL V /V + - TEST CONDITION MIN. ±3.5 TYP. - MAX. ±17.5 UNIT V -2- Ver.2009-10-28 NJM2723 ■ ELECTRICAL CARACTERISTICS (Measurement is to be conducted as pulse testing.) ● DC CHARACTERISTICS (V+/V-=±15V, Ta=25ºC, unless otherwise noted.) PARAMETER Supply Current Input Offset Voltage Input Bias Current Transimpedance Common Mode Input Voltage Range Common Mode Rejection Ratio Supply Voltage Rejection Ratio Maximum Output Voltage Maximum Output Voltage SYMBOL Icc VIO IB+ IBZT VICM CMR SVR VOM VOM TEST CONDITION No Signal MIN. 1.0 ±11 56 66 ±11.5 ±3.5 TYP. 2.9 4 2 2 2.5 ±12 66 76 ±13 ±4.5 MAX. 5 20 20 20 UNIT mA mV uA uA MΩ V dB dB V V RL=1kΩ, Vo=±10V CMR≥56dB -11V≤VICM≤+11V +±3.5V≤V /V ≤±17.5V RL=1kΩ RL=150Ω ● AC CHARACTERISTICS (V+/V-=±15V, Ta=25ºC, unless otherwise noted.) PARAMETER Bandwidth 0.1dB Flatness Slew Rate Slew Rate Settling Time 0.1% Equivalent Input Noise Voltage Equivalent Input Noise Current Total Harmonic Distortion 2nd Harmonic Distortion 3rd Harmonic Distortion SYMBOL BW-3dB TEST CONDITION GV=6dB, RF=680Ω, RG=680Ω, RL=1kΩ, CL=1pF GV=20dB, RF=680Ω, RG=75Ω, RL=1kΩ, CL=1pF GV=6dB, RF=680Ω, RG=680Ω, RL=1kΩ, CL=1pF, Vo=10Vpp, measured20% to 80% GV=6dB, RF=680Ω, RG=680Ω, RL=1kΩ, CL=1pF, Vo=20Vpp, measured20% to 80% GV=-1, RF=620Ω, RG=620Ω, RL=1kΩ, CL=1pF, Vo=10Vpp f=100kHz f=100kHz GV=6dB, RF=680Ω, RG=680Ω, RL=1kΩ, Vo=2Vpp, f=10MHz GV=6dB, RF=680Ω, RG=680Ω, RL=1kΩ, Vo=2Vpp, f=10MHz GV=6dB, RF=680Ω, RG=680Ω, RL=1kΩ, Vo=2Vpp, f=10MHz MIN. TYP. 75 24 12 1500 2000 50 6 13 -60 -65 -70 MAX. UNIT MHz MHz MHz V/us V/us ns nV/√Hz pA/√Hz dBc dB dB BW0.1dB GV=6dB, RF=680Ω, RG=680Ω, RL=1kΩ, CL=1pF SR SR ts Vni Ini+ THD HD2nd HD3nd Ver.2009-10-28 -3- NJM2723 ■ ELECTRICAL CARACTERISTICS (Measurement is to be conducted as pulse testing.) ● DC CHARACTERISTICS (V+/V-=±5V, Ta=25ºC, unless otherwise noted.) PARAMETER Supply Current Input Offset Voltage Input Bias Current Transimpedance Common Mode Input Voltage Range Common Mode Rejection Ratio Supply Voltage Rejection Ratio Maximum Output Voltage Maximum Output Voltage SYMBOL Icc VIO IB+ IBZT VICM CMR SVR VOM VOM TEST CONDITION No Signal MIN. 0.25 ±2 50 66 ±2.8 ±2.4 TYP. 2.8 4 2 2 0.85 ±2.25 60 76 ±3.3 ±2.8 MAX. 4.5 20 20 20 UNIT mA mV uA uA MΩ V dB dB V V RL=150Ω, Vo=±2V CMR≥50 -2≤VICM≤+2 +±3.5≤V /V ≤±17.5 RL=1kΩ RL=150Ω ● AC CHARACTERISTICS (V+/V-=±5V, Ta=25ºC, unless otherwise noted.) PARAMETER Bandwidth 0.1dB Flatness Slew Rate Settling Time 0.1% Equivalent Input Noise Voltage Equivalent Input Noise Current Total Harmonic Distortion 2nd Harmonic Distortion 3rd Harmonic Distortion Differential Gain Differential Phase SYMBOL BW-3dB TEST CONDITION GV=6dB, RF=680Ω, RG=680Ω, RL=150Ω, CL=1pF GV=20dB, RF=680Ω, RG=75Ω, RL=150Ω, CL=1pF GV=6dB, RF=680Ω, RG=680Ω, RL=150Ω, CL=1pF, Vo=2Vpp GV=-1, RF=620Ω, RG=620Ω, RL=150Ω, CL=1pF, Vo=2Vpp f=100kHz f=100kHz GV=6dB, RF=680Ω, RG=680Ω, RL=150Ω, Vo=2Vpp, f=10MHz GV=6dB, RF=680Ω, RG=680Ω, RL=150Ω, Vo=2Vpp, f=10MHz GV=6dB, RF=680Ω, RG=680Ω, RL=150Ω, Vo=2Vpp, f=10MHz GV=6dB, RF=680Ω, RG=680Ω, RL=150Ω, CL=1pF, VINDC=1/0, VIN=0.286V GV=6dB, RF=680Ω, RG=680Ω, RL=150Ω, CL=1pF, VINDC=1/0, VIN=0.286V MIN. TYP. 52 16 8 180 50 5 13 -50 -60 -50 0.05 0.25 MAX. UNIT MHz MHz MHz V/us ns nV/√Hz pA/√Hz dBc dB dB % deg BW0.1dB GV=6dB, RF=680Ω, RG=680Ω, RL=150Ω, CL=1pF SR ts Vni Ini+ THD HD2nd HD3nd DG DP -4- Ver.2009-10-28 NJM2723 ■ TYPICAL CHARACTERISTICS Supply Current vs. Supply Voltage 4 3.5 Supply Current [mA] RF=680Ω, RG=680Ω, RT=50Ω Ta=+25ºC Supply Current vs. Temperature 4.0 RF=680Ω, RG=680Ω, RT=50Ω Ta=+85ºC 3.5 Supply Current [mA] V+/V-=±15V 3 2.5 2 1.5 1 0.5 0 0 2.5 5 7.5 10 12.5 15 +Supply Voltage V /V [V] 17.5 20 Ta=-40ºC 3.0 2.5 2.0 1.5 1.0 0.5 0.0 -50 -25 0 25 50 75 100 125 150 Ambient Temperature [ºC] V+/V-=±5V Maximum Output Voltage vs. Load Resistance 15 12 9 Output Voltage [V] Ta=-40ºC Ta=+25ºC Ta=+85ºC V+/V-=±15V, VIN=±0.3V Maximum Output Voltage vs. Load Resistance 5 4 3 Output Voltage [V] V+/V-=±5V, VIN=±0.3V Ta=+85ºC 6 3 0 -3 -6 -9 -12 -15 10 0k 2 1 0 -1 -2 -3 -4 -5 Ta=+25ºC Ta=-40ºC 100 0k 1k 10k Load Resistance [Ω] 100k 10 0k 100 0k 1k 10k Load Resistance [Ω] 100k Maximum Output Voltage vs. Supply Voltage 20 Maximum Output Voltage [V] VIN=±0.3V, RL=1kΩ Maximum Output Voltage vs. Supply Voltage 15 Maximum Output Voltage [V] VIN=±0.3V, RL=150Ω 15 10 5 0 -5 -10 -15 -20 0 2.5 5 7.5 10 12.5 15 +Supply VoltageV /V [V] 17.5 20 Ta=-40ºC Ta=+85ºC Ta=+25ºC Ta=-40ºC 10 Ta=+25ºC 5 Ta=+85ºC 0 -5 -10 -15 0 2.5 5 7.5 10 12.5 15 +Supply Voltage V /V [V] 17.5 20 Ver.2009-10-28 -5- NJM2723 ■ TYPICAL CHARACTERISTICS Input Offset Voltage vs. Temperature VIN=0V Input Bias Current vs. Temperature 10.0 7.5 Input Bias Current [µA] V+/V-=±15V, VIN=0V 20 15 Input Offset Voltage [mV] 10 5 0 -5 -10 -15 -20 -50 -25 0 25 50 75 100 125 150 Ambient Temperature [ºC] V+/V-=±15V V /V =±5V + - 5.0 IB- 2.5 0.0 -2.5 -5.0 -7.5 -10.0 -50 -25 0 25 50 75 100 125 150 Ambient Temperature [ºC] IB+ Input Bias Current vs. Temperature 10.0 7.5 Input Bias Current [µA] Transimpedance [MΩ] V+/V-=±5V, VIN=0V 5 4.5 4 3.5 3 2.5 2 1.5 1 0.5 0 Transimpedance vs. Temperature 5.0 2.5 0.0 -2.5 -5.0 -7.5 -10.0 -50 -25 IB+ V+/V-=±15V RL=1kΩ IB- V+/V-=±5V RL=150Ω 0 25 50 75 100 125 150 Ambient Temperature [ºC] -50 -25 0 25 50 75 100 125 150 Ambient Temperature [ºC] SVR vs. Temperature 100 Common Mode Rejection Ratio[dB] CMR vs. Temperature Supply Voltage Rejection Ratio [dB] V+/V-=±15V VICM=±12V 100 90 80 70 60 50 40 30 20 10 0 -50 -25 V+/V-=±3.5V~±18V, ViN=0V 90 80 70 60 50 40 30 20 10 0 -50 V+/V-=±5V VICM=±2.25V -25 0 25 50 75 100 125 150 Ambient Temperature[ºC] 0 25 50 75 100 125 150 Ambient Temperature [ºC] -6- Ver.2009-10-28 NJM2723 ■ TYPICAL CHARACTERISTICS Gain vs. Frequency 40 30 20 Voltage Gain[dB] Voltage Gain[dB] V+/V-=±15V, RF=680Ω, RL=1kΩ, CL=0pF, Ta=25ºC Gain vs. Frequency 40 30 20 V+/V-=±5V, RF=680Ω, RL=150Ω, CL=0pF, Ta=25ºC 10 0 -10 -20 -30 -40 100k 0M 6dB 10 0 -10 -20 -30 -40 100k 0M 6dB 1M 10M 100M Frequency[Hz] 1G 1000M 1M 10M 100M Frequency[Hz] 1G 1000M Gain vs. Frequency (Load Capacitance) 20 15 10 Voltage Gain[dB] CL=300pF V+/V-=±15V, Gv=+2, RF=680Ω, RL=1kΩ, Ta=25ºC Gain vs. Frequency (Load Capacitance) 20 15 10 Voltage Gain[dB] CL=300pF CL=10pF V+/V-=±5V, Gv=+2, RF=680Ω, RL=150Ω, Ta=25ºC CL=100pF CL=100pF CL=10pF 5 0 -5 -10 -15 -20 100k 0M 5 0 -5 -10 -15 -20 100k 0M 1M 10M 100M Frequency[Hz] 1G 1000M 1M 10M 100M Frequency[Hz] 1G 1000M -3dB Bandwidth vs Feedback Resistor RF 120 100 -3dB Bandwidth [MHz] V+/V-=±15V RL=1kΩ Gv=+2, Ta=25ºC 80 60 40 20 0 400 V+/V-=±5V RL=150Ω 800 1200 1600 Feedback Resistor RF [Ω] 2000 Ver.2009-10-28 -7- NJM2723 ■ TYPICAL CHARACTERISTICS Pulse Response V+/V-=±15V, Gv=+2, RF=680Ω, RL=1kΩ, CL=0pF, VO=10Vpp Pulse Response V+/V-=±5V, Gv=2, RF=680Ω, RL=150Ω, CL=0pF, VO=2Vpp, Ta=25ºC Input 2.5V/div. Input 0.5V/div. Output 5V/div. Output 1V/div. 50ns/div. 50ns/div. Pulse Response V+/V-=±15V, Gv=-1, RF=680Ω, RL=1kΩ, CL=0pF, VO=10Vpp Pulse Response V+/V-=±5V, Gv=-1, RF=680Ω, RL=150Ω, CL=0pF, VO=2Vpp, Ta=25ºC Input 5V/div. Input 1V/div. Output 5V/div. Output 1V/div. 50ns/div. 50ns/div. Slew Rate vs. Feedback Resistor RF 2000 1750 1500 Slew Rate [V/µs] rise V+/V-=±15V, Gv=+2, Ta=25ºC (Measured from 20% to 80%) 1250 1000 fall 750 500 250 0 0.4k 0.8k 1.2k 1.6k Feedback Resistor RF [Ω] 2.0k -8- Ver.2009-10-28 NJM2723 ■ TYPICAL CHARACTERISTICS Input Noise vs. Frequency 100 V+/V-=±15V, RL=1kΩ, Ta=25ºC Input Noise vs. Frequency 100 100 V+/V-=±5V, RL=150Ω, Ta=25ºC 100 Current Noise Equivalent Input Noise Voltage [nV/√Hz] Equivalent Input Noise Current [pA/√Hz] Equivalent Input Noise Voltage [nV/√Hz] 10 10 10 10 Voltage Noise Voltage Noise 1 100 0k 1k 10k Frequency [Hz] 1 100k 1 100 0k 1k 10k Frequency [Hz] 1 100k Ver.2009-10-28 -9- Equivalent Input Noise Current [pA/√Hz] Current Noise NJM2723 ■ Application Note ● Choice of feedback resistor and gain resistor for current feedback operational Amplifier The NJM2723 is a current feedback operational amplifier. Closed-loop bandwidth depends on the feedback resistor value. Table1 shows recommended resistor values for a variety of useful closed-loop gains and supply voltages. Figure1. Formula of non−inverting / inverting amplifier RF RG RF RG VO + Gv=1+RF/RG VIN + VO VIN Gv= -RF/RG Table1. -3dB Bandwidth vs. Closed−loop Gain and Resistance Value V+/V-=±15V Closed-Loop Gain +1 +2 +10 -1 -10 V+/V-=±5V Closed-Loop Gain +1 +2 +10 -1 -10 RF[Ω] 750 680 680 680 680 RG[Ω] 680 75 680 68 -3dB BW[MHz] 120 76 20 65 25 RF[Ω] 680 680 620 680 680 RG[Ω] 680 68 680 68 -3dB BW[MHz] 85 52 15 50 20 ● In case of using Voltage follower The feedback resistance must be inserted when using a current feedback amplifier as the voltage follower. A current feedback amplifier cannot be used by connecting output pin and inverting input pin directly. (Figure2) Figure2. Voltage follower circuit RF VIN VO + ● In case of using capacitive Feedback For a current feedback amplifier stability operation, do not use a compensation capacitor in parallel with feedback resistance. The dynamic impedance of capacitor in the feedback loop reduces the amplifier's stability. Figure3. Non-stability circuit example C RF RG RF VO + RG C VIN + VO VIN (a). C connects in paraliel with RF (b). C connects to input pin - 10 - Ver.2009-10-28 NJM2723 ■ MEMO [CAUTION] The specifications on this data book are only given for information, without any guarantee as regards either mistakes or omissions. The application circuits in this data book 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. Ver.2009-10-28 - 11 -