NJU7056 Rail-to-Rail Output Single CMOS Operational Amplifier ■ GENERAL DESCRIPTION The NJU7056 is a single CMOS operational amplifier that feature low noise as VNI=15nV/√Hz (at VDD= 5V, f=1kHz). It is tolerant to RF noise. The NJU7056 can operate from a single-supply voltage of +1.8V to +5.5V. In addition, this amplifier features Rail-to-Rail output and low input bias current (1pA). ■ PACKAGE OUTLINE NJU7056F (SOT−23−5) NJU7056F3 (SC88A) ■ FEATURES ●Voltage Noise ●Low Operating Voltage ●Rail-to-Rail Output 15nV/√Hz (typ.) (at VDD= 5V, f=1kHz) 1.8V to 5.5V VOH=4.9V min./ VOL=0.1V max. (at VDD= 5V, RL=10kΩ) VOH=4.8V min./ VOL=0.2V max. (at VDD= 5V, IO=2mA) ●Enhanced RF Noise Immunity ●CMOS Process ●Package SOT-23−5, SC88A ■ APPLICATION ●Sensor amplifiers ●Photodiode amplifiers ●Low noise signal processing applications ●Microphone amplifiers ●Battery-operated application ■ PIN CONFIGURATION (Top View) 1 5 2 3 Ver.2012-10-30 4 PIN FUNCTION 1: +INPUT 2: GND 3: -INPUT 4: OUTPUT 5: VDD -1- NJU7056 ■ ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATINGS UNIT Supply Voltage Input Common Mode Voltage Differential Input Voltage Power Dissipation (Note3) Operating Temperature Range Storage Temperature Range VDD VICM VID PD T opr T st g +7 V SS -0.3 to V DD +0.3 ±7 (Note1) 390[SOT−23−5],280[SC88A] (Note2) -40 to +85 -55 to +125 V V V mW ˚C ˚C (Note1) For supply voltage less than +7V, the absolute maximum rating is equal to the supply voltage. (Note2) EIA/JEDEC STANDARD Test board (76.2 x 114.3 x 1.6mm, 2layers, FR-4) mounting. (Note3) Do not exceed “Power dissipation: PD” in which power dissipation in IC is shown by the absolute maximum rating. See Figure “Power Dissipation Curve” when ambient temperature is over 25˚C. Power Dissipation Curve 500 Power Dissipation PD (mW) SOT-23-5 400 SC88A 300 200 100 0 0 20 40 60 80 Ambient Temperature Ta (ºC) ■ RECOMMENDED OPERATING CONDITION -2- 100 (Ta=25˚C) PARAMETER SYMBOL RATING UNIT Supply Voltage V DD 1.8 to 5.5 V Ver.2012-10-30 NJU7056 ■ ELECTRICAL CHARACTERISTICS DC CHARACTER (VDD=5V, VSS=0V, Ta=25˚C, unless otherwise noted.) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Supply Current IDD No Signal - 260 420 µA Input Offset Voltage Input Offset Voltage drift Input Bias Current VIO ∆Vio/∆T IB Vic=0V, RS=50Ω - 1 0.7 1 4 - mV µV/ºC pA - 1 - pA Vo=0.5V to 4.5V, RL=10kΩ to 2.5V 70 90 - dB Input Offset Current IIO Open loop gain AV Common Mode Rejection Ratio CMR VICM=0V to 4.1V 65 80 - dB Supply Voltage Rejection Ratio SVR VDD=1.8V to 5.5V 70 90 - dB VOH1 RL=10kΩ to 2.5V 4.9 4.95 - V VOL1 RL=10kΩ to 2.5V - 0.05 0.1 V VOH2 RL=10kΩ to 0V 4.9 4.95 - V VOL2 RL=10kΩ to 0V - 0.02 0.05 V VOH3 Isource=2mA 4.8 4.85 - V VOL3 Isink=2mA - 0.15 0.2 V VICM CMR≥65dB 0 - 4.1 V Maximum Output Voltage 1 Maximum Output Voltage 2 Maximum Output Voltage 3 Common Mode Input Voltage Range AC CHARACTER (VDD=5V, VSS=0V, Ta=25˚C, unless otherwise noted.) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Gain Bandwidth Product GBW RL=10kΩ to 2.5V, CL=20pF, f=100kHz - 2.1 - MHz Phase Margin M RL=10kΩ to 2.5V, CL=20pF - 80 - deg Gain Margin GM RL=10kΩ to 2.5V, CL=20pF - 10 - dB Equivalent Input Noise Voltage en f=1kHz - 15 - nV/√Hz Slew Rate SR GV=0dB, RL=10kΩ to 2.5V, CL=20pF, Vin=3Vpp (1V to 4V) (Note4) (Note5) - 0.8 - V/us Total Harmonic Distortion THD GV=6dB, RF=50kΩ, RG=50kΩ, CL=20pF, Vo=4Vpp, f=1kHz (Note6) - 0.01 - % (Note4) Slew rate is defined by the lower value of the rise or fall. (Note5) See figure2-1 for test circuit. (Note6) See figure2-3 for test circuit. Ver.2012-10-30 -3- NJU7056 ■ ELECTRICAL CHARACTERISTICS DC CHARACTER (VDD=1.8V, VSS=0V, Ta=25˚C, unless otherwise noted.) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT Supply Current IDD No Signal - 220 380 µA Input Offset Voltage Input Offset Voltage drift Input Bias Current VIO ∆Vio/∆T IB Vic=0V, RS=50Ω - 1 0.8 1 4 - mV µV/ºC pA Input Offset Current IIO - 1 - pA Open loop gain AV Vo=0.5V to 2.5V, RL=10kΩ to 0.9V 65 80 - dB Common Mode Rejection Ratio CMR VICM=0V to 0.9V 65 80 - dB Supply Voltage Rejection Ratio Maximum Output Voltage 1 Maximum Output Voltage 2 Maximum Output Voltage 3 Common Mode Input Voltage Range SVR VDD=1.8V to 5.5V 70 90 - dB VOH1 RL=10kΩ to 0.9V 1.7 1.75 - V VOL1 RL=10kΩ to 0.9V - 0.05 0.1 V VOH2 RL=10kΩ to 0V 1.7 1.75 - V VOL2 RL=10kΩ to 0V - 0.02 0.05 V VOH3 Isource=1mA 1.5 1.55 - V VOL3 Isink=1mA - 0.25 0.3 V VICM CMR≥65dB 0 - 0.9 V AC CHARACTER (VDD=1.8V, VSS=0V, Ta=25˚C, unless otherwise noted.) PARAMETER SYMBOL TEST CONDITION MIN. TYP. Gain Bandwidth Product GBW Phase Margin φM Gain Margin GM RL=10kΩ to 0.9V, CL=20pF - Equivalent Input Noise Voltage en f=1kHz - Slew Rate SR GV=0dB, RL=10kΩ to 1.5V, CL=20pF, Vin=0.5Vpp (0.3V to 0.8V) (Note4) (Note7) - Total Harmonic Distortion THD GV=6dB, RF=50kΩ, RG=50kΩ, CL=20pF, Vo=1Vpp, f=1kHz (Note8) - MAX. UNIT RL=10kΩ to 0.9V, CL=20pF, f=100kHz - RL=10kΩ to 0.9V, CL=20pF - 1.7 - MHz 80 - deg 13 - dB 18 - nV/√Hz 0.6 - V/us 0.01 - % (Note4) Slew rate is defined by the lower value of the rise or fall. (Note7) See figure2-2 for test circuit. (Note8) See figure2-4 for test circuit.. -4- Ver.2012-10-30 NJU7056 ■ MEASUREMENT CIRCUITS VDD Vin VDD Vin Vout Vout RL RL CL CL VDD 2 Figure 2-1:Measurement circuit 1 Vin Figure 2-2:Measurement circuit 2 VDD Vin VDD Vout Vout CL CL RF RG RF RG VDD 2 Figure 2-3:Measurement circuit 3 Ver.2012-10-30 Figure 2-4:Measurement circuit 4 -5- NJU7056 ■ ELECTRICAL CHARACTERISTICS Input Offset Voltage Distribution Input Offset Voltage Drift Distribution 40 40 35 35 30 30 Number of Amplifier Number of Amplifier VDD=5V, VICM=0V, Ta=25ºC N=60 25 20 15 10 5 VDD=5V, VICM=0V, Ta=-40ºC→85ºC N=60 25 20 15 10 5 0 0 -7 -6 -5 -4 -3 -2 -1 1 2 3 4 5 6 7 Input Offset Voltage [mV] -7 -6 -5 -4 -3 -2 -1 1 2 3 4 5 6 7 Input Offset Voltage Drift [µV/ºC] Supply Current vs. Supply Voltage Supply Current vs. Temperature Gv=0dB Gv=0dB 400 350 350 300 Supply Current [µA] Supply Current[µA] Ta=85ºC 250 200 Ta=25ºC 150 Ta=-40ºC 100 200 150 VDD=1.8V 100 0 0 0 1 2 3 4 5 Supply Voltage [V] 6 -50 7 -25 0 25 50 75 100 Input Offset Voltage vs. Temperature Input Offset Voltage vs. Common Mode Input Voltage (Supply Voltage) VICM=VDD/2 (Temperature) VDD=5V 4 1 3 0.8 2 VDD=5V 1 0 VDD=1.8V -1 125 Ambient Temperature [ºC] Input Offset Voltage [mV] Input Offset Voltage [mV] VDD=5V 250 50 50 -2 -3 0.6 Ta=85ºC 0.4 0.2 0 Ta=25ºC Ta=-40ºC -0.2 -0.4 -0.6 -0.8 -4 -1 -50 -6- 300 -25 0 25 50 75 100 Ambient Temperature[ºC] 125 -2 -1 0 1 2 3 4 5 Common Mode Input Voltage [V] 6 Ver.2012-10-30 NJU7056 ■ ELECTRICAL CHARACTERISTICS CMR vs. Temperature (supply Voltage) SVR vs. Temperature VICM=0V→VDD-0.9V VDD=1.8V→5.5V 140 Common Mode Reiection Ratio [dB] Supply Voltage Rejection Ratio [dB] 140 120 100 80 60 40 20 120 VDD=5V 100 80 VDD=1.8V 60 40 20 0 0 -50 -25 0 25 50 75 100 Ambient Temperature [ºC] -50 125 Output Voltage vs. Output Current (Temperature) -25 0 25 50 75 100 Ambient Temperature [ºC] Output Voltage vs. Output Current (Temperature) VDD=1.8V, VICM=0.9 VDD=5V, VICM=2.5V 1.8 5 1.6 4.5 Ta=85ºC Ta=25ºC 1.4 1.2 1 0.8 0.6 Ta=-40ºC 0.4 Ta=25ºC Ta=25ºC Ta=-40ºC 3.5 3 2.5 2 1.5 Ta=-40ºC Ta=25ºC 1 Ta=85ºC 0.2 Ta=85ºC 4 Ta=-40ºC Output Voltage [V] Out Voltage [V] 125 Ta=85ºC 0.5 0 0.001 0.01 0.1 1 Output Current [mA] 0 0.001 10 0.01 0.1 1 10 Output Current [mA] 100 Open-Loop Gain vs Temperature VOUT=0.5V to VDD-0.5, RL=10KΩ THD + Noise vs. Output Voltage 140 Tatal Harmonic Distortion + Noise[%] 10 120 Open-Loop Gain [dB] VDD=5V 100 80 VDD=1.8V 60 40 20 0 -50 -25 0 25 50 75 Ambient Temperature [ºC] Ver.2012-10-30 100 125 VDD=5V, Gv=6dB, RG=5kΩ, RF=5KΩ, Ta=25ºC 1 0.1 0.01 0.001 0.0001 0.001 f=1kHz f=500Hz f=100Hz 0.01 0.1 1 Output Voltage [Vrms] 10 -7- NJU7056 ■ ELECTRICAL CHARACTERISTICS Equivalent Input Noise Voltage vs. Frequency VDD=5V, GV=20dB, RF=100KΩ, RS=100Ω, Ta=25ºC Gain/Phase vs. Frequency (Load Capacitance) 200 VDD=5V, Gv=40dB, RF=100kΩ, Ta=25ºC Gain 40 Phase 0 0 CL=300pF CL=100pF -20 CL=20pF -40 -60 -120 CL=100pF CL=300pF -60 100 1k 10k 100k Frequency [Hz] 1M -180 10M Phase [deg] Voltage Gain [dB] CL=20pF 20 Equivalent Input Noise Voltage [nV/√Hz] 60 180 160 140 120 100 80 60 40 20 0 1 100 Frequency [Hz] 1k pulse Response (Load Capacitance) Pulse Response (Load capacitance) VDD=5V, GV=0dB, RL=10KΩ, Ta=25ºC VDD=5V, GV=0dB, RL=10KΩ, Ta=25ºC 10k INPUT 1V/div. INPUT 1V/div. 10 OUTPUT OUTPUT CL=200pF CL=200pF CL=20pF CL=300pF CL=300pF CL=20pF 2µs/div. 2µs/div. [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. -8- Ver.2012-10-30