NJU7027RB1-TE2

NJU7026/NJU7027/NJU7028 13μA/ch, Rail-to-Rail Output CMOS Operational Amplifier FEATURES (V+=5V, V-=0V, Ta=25°C, typ.) ●Supply Current (All Amplifiers) NJU7026 13µA NJU7027 26µA NJU7028 48µA ●Supply Voltage 1.8V to 5.5V ●Gain Bandwidth Product 160kHz ●Rail-to-Rail Output + RL=100kΩ to V /2 50mV from rail ●Ground Sense ●Common-Mode Input Voltage Range 0V to 4.1V ●Input Offset Voltage 4mV max. ●Input Offset Voltage Drift 1.5µV/°C ●Thin and Ultra Small Package ESON8-U1 2.0 x 2.0 x 0.4 mm ●RF noise Immunity ●Unity-Gain Stable ●Package NJU7026 SOT-23-5, SC-88A NJU7027 MSOP8 (TVSP8)* *meet JEDEC MO-187-DA / thin type NJU7028 DFN8-U1(ESON8-U1) SSOP14 APPLICATIONS ●Battery-powered instruments ●Current sensor amplifiers ●Voltage/current monitoring ●Power line monitoring ●Photodiode amplifiers DESCRIPTION The NJU7026/NJU7027/NJU7028 are single, dual and quad rail-to-rail output single supply CMOS operational amplifiers featuring low supply current. These amplifiers operates from single 1.8V to 5.5V supply or dual ±0.9V to ±2.75V supply and provide a 160kHz gain-bandwidth products while using only 13μA of supply current per channel, ideal for 2-cell battery systems and 1-cell li-ion battery systems. NJU7026/NJU7027/NJU7028 have rail-to-rail outputs that typically swing to within 50mV of the rails with 100kΩ load and the input common mode voltage range includes negative supply rail and swing to within 0.9V of the positive rail. These characteristics make them suited for low-side current sense applications. In addition to low power and rail-to-rail output, very low bias current make them to used for photodiode amplifiers, charge amplifiers, piezoelectric sensors and other applications with high source impedance. NJU7026/NJU7027/NJU7028 are high RF-immunity to reduce malfunctions caused by RF noises from mobile phones and others. The NJU7026 is available in 5-pin SC-88A and SOT-23 package. NJU7027 is available in 8-pin MSOP (TVSP): meet JEDEC MO-187-DA / thin type package and DFN which is thin and 2mm square small package. NJU7028 is available in 14-pin SSOP package. RELATED PRODUCTS Features Single Dual Quad 0.23µA/ch, Rail-to-rail I/O (Ultralow power type) NJU77001 NJU77002 NJU77004 NJU77000 15nV/√Hz, Rail-to-rail Output (Low Noise type) NJU7056 NJU7057 NJU7058 9V/µs, 5MHz, Rail-to-rail I/O NJU7046 NJU7047 NJU7048 (High slew rate type) Ver.03 [ 1] NJU7026/NJU7027/NJU7028 ■ PIN CONFIGURATION / PRODUCT INFORMATION (Top View) (Top View) (Top View) Pin Function +INPUT 1 V- 2 -INPUT 3 5 4 A OUTPUT 1 8 V+ A -INPUT 2 7 B OUTPUT A OUTPUT 1 A -INPUT 2 8 V+ 7 B OUTPUT 6 B -INPUT 5 B +INPUT V+ A +INPUT 3 6 V- 4 5 B -INPUT A +INPUT 3 B +INPUT V- 4 OUTPUT Exposed Pad on Underside Connect to exposed pad to V- Package Product Name SC-88A SOT-23-5 MSOP8(TVSP8) DFN8-U1(ESON8-U1) NJU7026F3 NJU7026F NJU7027RB1 NJU7027KU1 (Top View) Pin Function A OUTPUT 1 14 D OUTPUT A -INPUT 2 13 D -INPUT A +INPUT 3 12 D +INPUT V+ 4 11 V- B +INPUT 5 10 C +INPUT B -INPUT 6 9 C -INPUT B OUTPUT 7 8 C OUTPUT Package SSOP14 Product Name Ver.03 NJU7028V [ 2] NJU7026/NJU7027/NJU7028 ■ ABSOLUTE MAXIMUM RATINGS (Ta=25°C, unless otherwise noted.) PARAMETER SYMBOL + Supply Voltage UNIT 7 V V -V Input Voltage - VIN Differential Input Voltage Input Current RATING - (1) + V - 0.3 to V + 0.3 VID (3) ±7 IIN Power Dissipation V (2) V 10 (4) mA (2-layer / 4-layer) SOT-23-5 (5) 480 / 650 SC-88A 360 / 490 PD MSOP8(TVSP8) mW 510 / 680 SSOP14 500 / 620 DFN8-U1(ESON8-U1) 450 (6) (6) / 1200 Operating Temperature Range Topr -40 to +125 °C Storage Temperature Range Tstg -55 to +150 °C (1) Differential voltage is the voltage difference between +INPUT and -INPUT. (2) For supply voltage less than +7V, the absolute maximum rating is equal to the supply voltage. (3) Input voltages outside the supply voltage will be clamped by ESD protection diodes. If the input voltage exceeds the supply voltage, the input current must be limited 10 mA or less by using a restriction resistance. (4) Power dissipation is the power that can be consumed by the IC at Ta=25°C, and is the typical measured value based on JEDEC condition. When using the IC over Ta=25°C subtract the value [mW/°C]=PD/(Tstg(MAX)-25) per temperature. (5) 2-layer: EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layers, FR-4) mounting 4-layer: EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 4layers, FR-4) mounting (6) 2-layer: EIA/JEDEC STANDARD Test board (101.5x114.5x1.6mm, 2layers, FR-4) mounting 4-layer: EIA/JEDEC STANDARD Test board (101.5x114.5x1.6mm, 4layers, FR-4) mounting Power Dissipation vs. Temperature Power Dissipation vs. Temperature Power Dissipation PD [mW] 700 600 Power Dissipation PD [mW] 2-Layer MSOP8(TVSP8) 500 SSOP14 400 300 SOT-23-5 200 DFN8-U1(ESON8-U1) 100 SC-88A 0 0 25 50 75 100 125 Ambient Temperature [ºC] 4-Layer 1300 1200 1100 1000 900 800 700 600 500 400 300 200 100 0 DFN8-U1(ESON8-U1) MSOP8(TVSP8) SOT-23-5 SSOP14 SC-88A 0 150 25 50 75 100 125 Ambient Temperature [ºC] 150 ■ RECOMMENDED OPERATING CONDITIONS (Ta=25°C) PARAMETER Supply Voltage Ver.03 CONDITION MIN. TYP. MAX. UNIT 1.8 - 5.5 V [ 3] NJU7026/NJU7027/NJU7028 ■ ELECTRICAL CHARACTERISTICS (V+=5V, V-=0V, Ta=25°C, unless otherwise noted.) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT - 13 20 μA - 26 40 μA - 48 72 μA - 0.9 4 mV - 1.5 - µV/°C DC CHARACTERISTICS Supply Current (All Amplifiers) NJU7026 NJU7027 No Signal ISUPPLY NJU7028 Input Offset Voltage VIO Input Offset Voltage Drift NJU7026/NJU7027 VCOM= 0V, RS=50Ω Ta = -40°C to 125°C ΔVIO/ΔT - 2 - µV/°C Input Bias Current NJU7028 IB - 1 - pA Input Offset Current IIO - 1 - pA RL=100kΩ to 2.5V, Vout=0.5V to 4.5V 70 90 - dB VICM=0V to 4.1V 65 80 - dB Open-Loop Voltage Gain Common-Mode Rejection Ratio Supply Voltage Rejection Ratio Common-Mode Input Voltage Range High-level Output Voltage Low-level Output Voltage AV CMR + SVR V =1.8V to 5.5V 70 90 - dB VICM CMR≥65dB 0 - 4.1 V RL=100kΩ to 2.5V 4.9 4.95 - V RL=100kΩ to 0V 4.9 4.95 - V ISOURCE=1mA 4.8 4.85 - V RL=100kΩ to 2.5V - 0.05 0.1 V RL=100kΩ to 0V - 0.02 0.05 V ISINK=1mA - 0.15 0.2 V GV=0dB, RL=100kΩ to 2.5V, CL=20pF, VIN=3VPP - 0.05 - V/µs VOH VOL AC CHARACTERISTICS Slew Rate (7) SR Gain Bandwidth Product GBW RL=100kΩ to 2.5V, CL=20pF, f=10kHz - 160 - kHz Full Power Bandwidth FPBW GV=6dB, RF=RG=50kΩ, CL=20pF, VIN=2.5VPP, Vout≥4.8VPP - 5 - kHz Phase Margin ΦM RL=100kΩ to 2.5V, CL=20pF - 80 - deg Gain Margin GM RL=100kΩ to 2.5V, CL=20pF - 15 - dB Equivalent Input Noise Voltage VNI f=1kHz - 50 - nV/√Hz GV=6dB, RF=RG=50kΩ, CL=20pF, VO=4VPP, f=100Hz - 0.01 - % f=1kHz, NJU7027/NJU7028 - 120 - dB Total Harmonic Distortion + Noise Channel Separation THD+N CS (7) Slew rate is defined by the lower value of the rise or fall. Ver.03 [ 4] NJU7026/NJU7027/NJU7028 ■ ELECTRICAL CHARACTERISTICS (V+=3V, V-=0V, Ta=25°C, unless otherwise noted.) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT - 12 19 μA - 24 36 μA - 45 68 μA - 0.9 4 mV - 1.5 - µV/°C DC CHARACTERISTICS Supply Current (All Amplifiers) NJU7026 NJU7027 No Signal ISUPPLY NJU7028 Input Offset Voltage VIO Input Offset Voltage Drift NJU7026/NJU7027 VCOM= 0V, RS=50Ω Ta = -40°C to 125°C ΔVIO/ΔT - 2 - µV/°C Input Bias Current NJU7028 IB - 1 - pA Input Offset Current IIO - 1 - pA RL=100kΩ to 1.5V, Vout=0.5V to 2.5V 70 90 - dB VICM=0V to 2.1V 65 80 - dB Open-Loop Voltage Gain Common-Mode Rejection Ratio Supply Voltage Rejection Ratio Common-Mode Input Voltage Range High-level Output Voltage Low-level Output Voltage AV CMR + SVR V =1.8V to 5.5V 70 90 - dB VICM CMR≥65dB 0 - 2.1 V RL=100kΩ to 1.5V 2.9 2.95 - V RL=100kΩ to 0V 2.9 2.95 - V ISOURCE=1mA 2.8 2.85 - V RL=100kΩ to 1.5V - 0.05 0.1 V RL=100kΩ to 0V - 0.02 0.05 V ISINK=1mA - 0.15 0.2 V GV=0dB, RL=100kΩ to 1.5V, CL=20pF, VIN=1VPP - 0.05 - V/µs VOH VOL AC CHARACTERISTICS Slew Rate (7) SR Gain Bandwidth Product GBW RL=100kΩ to 1.5V, CL=20pF, f=10kHz - 150 - kHz Full Power Bandwidth FPBW GV=6dB, RF=RG=50kΩ, CL=20pF, VIN=1.5VPP, Vout≥2.8VPP - 8 - kHz Phase Margin ΦM RL=100kΩ to 1.5V, CL=20pF - 80 - deg Gain Margin GM RL=100kΩ to 1.5V, CL=20pF - 15 - dB Equivalent Input Noise Voltage VNI f=1kHz - 50 - nV/√Hz GV=6dB, RF=RG=50kΩ, CL=20pF, VO=2VPP, f=100Hz - 0.01 - % f=1kHz, NJU7027/NJU7028 - 115 - dB Total Harmonic Distortion + Noise Channel Separation THD+N CS (7) Slew rate is defined by the lower value of the rise or fall. Ver.03 [ 5] NJU7026/NJU7027/NJU7028 ■ ELECTRICAL CHARACTERISTICS (V+=1.8V, V-=0V, Ta=25°C, unless otherwise noted.) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT - 12 18 μA - 22 34 μA - 43 65 μA - 0.9 4 mV - 1.5 - µV/°C DC CHARACTERISTICS Supply Current (All Amplifiers) NJU7026 NJU7027 No Signal ISUPPLY NJU7028 Input Offset Voltage VIO Input Offset Voltage Drift NJU7026/NJU7027 VCOM= 0V, RS=50Ω Ta = -40°C to 125°C ΔVIO/ΔT - 2 - µV/°C Input Bias Current NJU7028 IB - 1 - pA Input Offset Current IIO - 1 - pA RL=100kΩ to 0.9V, Vout=0.5V to 1.3V 70 90 - dB VICM=0V to 0.9V 65 80 - dB Open-Loop Voltage Gain Common-Mode Rejection Ratio Supply Voltage Rejection Ratio Common-Mode Input Voltage Range High-level Output Voltage Low-level Output Voltage AV CMR + SVR V =1.8V to 5.5V 70 90 - dB VICM CMR≥65dB 0 - 0.9 V RL=100kΩ to 0.9V 1.7 1.75 - V RL=100kΩ to 0V 1.7 1.75 - V ISOURCE=0.5mA 1.5 1.55 - V RL=100kΩ to 0.9V - 0.05 0.1 V RL=100kΩ to 0V - 0.02 0.05 V ISINK=0.5mA - 0.25 0.3 V GV=0dB, RL=100kΩ to 0V, CL=20pF, VIN=0.5VPP - 0.05 - V/µs VOH VOL AC CHARACTERISTICS Slew Rate (7) SR Gain Bandwidth Product GBW RL=100kΩ to 0.9V, CL=20pF, f=10kHz - 140 - kHz Full Power Bandwidth FPBW GV=6dB, RF=RG=50kΩ, CL=20pF, VIN=0.9VPP, Vout≥1.6VPP - 14 - kHz Phase Margin ΦM RL=100kΩ to 0.9V, CL=20pF - 80 - deg Gain Margin GM RL=100kΩ to 0.9V, CL=20pF - 15 - dB Equivalent Input Noise Voltage VNI f=1kHz - 50 - nV/√Hz GV=6dB, RF=RG=50kΩ, CL=20pF, VO=1VPP, f=100Hz - 0.01 - % f=1kHz, NJU7027/NJU7028 - 110 - dB Total Harmonic Distortion + Noise Channel Separation THD+N CS (7) Slew rate is defined by the lower value of the rise or fall. Ver.03 [ 6] NJU7026/NJU7027/NJU7028 ■ TYPICAL CHARACTERISTICS Supply Current per Amplifier vs. Supply Voltage GV=0dB 18 Ta=125ºC 16 Ta=25ºC 14 12 10 8 GV=0dB 18 Supply Current per Amplifier [μA] Supply Current per Amplifier [μA] Supply Current per Amplifier vs. Temperature Ta=-40ºC 6 4 2 0 16 V+=5V 14 12 10 V+=3V 8 V+=1.8V 6 4 2 0 0 1 2 3 4 5 Supply Voltage V+ [V] 6 7 -50 Input Offset Voltage [mV] =V+/2 Ta=25ºC Ta=-40ºC 2 1 Ta=85ºC 0 -1 1 Ta=25ºC Ta=125ºC 0 1 2 3 4 Supply Voltage V+ [V] 5 6 -1 Input Offset Voltage vs. Common-Mode Input Voltage Input Offset Voltage [mV] 1 Ta=125ºC 5 V+=1.8V 3 Ta=-40ºC 2 0 1 2 3 4 Common-Mode Input Voltage [V] Input Offset Voltage vs. Common-Mode Input Voltage V+=3V 3 Input Offset Voltage [mV] Ta=-40ºC 2 -1 0 Ta=25ºC 0 -1 2 Ta=-40ºC 1 0 Ta=125ºC Ta=25ºC -1 -1 Ver.03 V+=5V 3 Input Offset Voltage [mV] VCOM 0 25 50 75 100 125 150 Ambient Temperature [ºC] Input Offset Voltage vs. Common-Mode Input Voltage Input Offset Voltage vs. Supply Voltage 3 -25 0 1 2 Common-Mode Input Voltage [V] 3 -0.6 -0.3 0 0.3 0.6 0.9 1.2 1.5 Common-Mode Input Voltage [V] 1.8 [ 7] NJU7026/NJU7027/NJU7028 ■ TYPICAL CHARACTERISTICS Input Offset Voltage Distribution Input Offset Voltage Drift Distribution V+=5V, VCOM=0V, Ta=25ºC, n=300 30% 25% Percent of Amplifiers 25% Percent of Amplifiers V+=5V, VCOM=0V, n=300 30% 20% 15% 10% 20% 15% 10% 5% 5% 0% 0% -4.0 -3.0 -2.0 -1.0 0.0 1.0 2.0 3.0 Input Offset Voltage [mV] 4.0 -9.0 Input Offset Voltage vs. Temperature 9.0 Input Bias Currentvs. Temperature V+=5V, VCOM=2.5V, n=100 4 -6.0 -3.0 0.0 3.0 6.0 Input Offset Voltage Drift [μV/ºC] VCOM=V+/2 10n Input Bias Current [A] Input Offset Voltage [mV] 3 2 1 0 -1 -2 1n 100p V+=5V 10p 1p V+=1.8V -3 -4 100f -50 0 25 50 75 100 125 150 Ambient Temperature [ºC] 100 80 CMR (V+=5V) CMR (V+=3V) 60 CMR (V+=1.8V) 50 75 100 125 Ambient Temperature [ºC] 150 Open-Loop Voltage Gain vs. Temperature VO=0.5V to V+-0.5V, RL=100kΩ to V+/2 120 Open-Loop Voltage Gain [dB] SVR 40 V+=5V 100 80 V+=1.8V V+=3V 60 40 -50 Ver.03 25 Common-Mode and Supply Voltage Rejection Ratio vs. Temperature 120 Common-Mode and Supply Voltage Rejection Ratio [dB] -25 -25 0 25 50 75 100 125 150 Ambient Temperature [ºC] -50 -25 0 25 50 75 100 125 150 Ambient Temperature [ºC] [ 8] NJU7026/NJU7027/NJU7028 ■ TYPICAL CHARACTERISTICS Maximum Output Voltage vs. Output Current Maximum Output Voltage vs. Output Current V+=5V, VCOM=2.5V 5.0 VOH Ta=-40ºC 4.0 Maximum Output Voltage [V] Ta=25ºC Ta=125ºC 3.0 2.0 Ta=125ºC Ta=25ºC 1.0 Ta=-40ºC Ta=-40ºC 2.5 Ta=25ºC 2.0 Ta=125ºC 1.5 1.0 Ta=125ºC Ta=25ºC 0.5 Ta=-40ºC VOL VOL 0.0 1 10 Output Current [mA] 100 0.1 1.8 VCOM=0.9V High-level Output Voltage VOH [V] Maximum Output Voltage [V] Ta=-40ºC Ta=25ºC Ta=125ºC 1.2 0.9 0.6 Ta=125ºC Ta=25ºC 0.3 Ta=-40ºC VOL 0.0 0.01 V+=5V, 5.0 VOH 1.5 4.0 Ta=-40ºC 3.0 2.0 Ta=25ºC 0.15 Ta=125ºC 1.0 10 Ta=125ºC 0.15 0.10 0.05 0.0 Ver.03 VOL 100 1k 10k Load Resistance [Ω] 0.00 100k High-level Output Voltage VOH [V] Ta=-40ºC Low-level Output Voltage VOL [mV] High-level Output Voltage VOH [V] 1.5 0.5 0.00 100k 100 1k 10k Load Resistance [Ω] V+=1.8V, GV=OPEN, RL connected to 0V 1.8 2.0 Ta=25ºC 0.10 Maximum Output Voltage vs. Load Resistance Ta=-40ºC 10 VOL 0.05 10 VOH 1.0 Ta=-40ºC 0.0 0.1 1 Output Current [mA] V+=3V, GV=OPEN, RL connected to 0V 2.5 GV=OPEN, RL connected to 0V VOH Maximum Output Voltage vs. Load Resistance 3.0 100 Maximum Output Voltage vs. Load Resistance Maximum Output Voltage vs. Output Current V+=1.8V, 1 10 Output Current [mA] Low-level Output Voltage VOL [mV] 0.1 VOH 1.5 Ta=-40ºC 1.2 0.9 Ta=-40ºC Ta=25ºC 0.6 Ta=125ºC 0.3 VOL 0.3 0.2 0.1 0.0 10 100 1k 10k Load Resistance [Ω] Low-level Output Voltage VOL [mV] Maximum Output Voltage [V] VOH 0.0 V+=3V, VCOM=1.5V 3.0 0.0 100k [ 9] NJU7026/NJU7027/NJU7028 ■ TYPICAL CHARACTERISTICS Maximum Output Voltage vs. Load Resistance V+/V-=±2.5V 2.5 V+/V-=±1.5V 1.5 VOH 2.0 Ta=-40ºC 1.5 Maximum Output Voltage [V] Ta=125ºC 1.0 Ta=25ºC 0.5 0 -0.5 Ta=25ºC -1.0 Ta=125ºC -1.5 Ta=-40ºC -2.0 Ta=125ºC 0.5 Ta=25ºC 0 Ta=25ºC -0.5 Ta=125ºC -1.0 Ta=-40ºC VOL -2.5 VOL -1.5 10 100 1k Load Resistance [Ω] 10k 10 Maximum Output Voltage vs. Load Resistance 0.7 100 1k Load Resistance [Ω] V+=5V, GV=40dB, RL=100kΩ, Ta=25ºC 60 VOH Ta=-40ºC Gain 40 Voltage Gain [dB] Ta=125ºC 0.5 Ta=25ºC 0.3 0.1 -0.1 Ta=25ºC -0.3 -0.5 10k 40dB Voltage Gain/Phase vs. Frequency V+/V-=±0.9V 0.9 Maximum Output Voltage [V] VOH Ta=-40ºC 1.0 CL=20pF 20 CL=100pF Phase 0 0 CL=150pF -20 -60 CL=20pF Phase [deg] Maximum Output Voltage [V] Maximum Output Voltage vs. Load Resistance Ta=125ºC -40 -0.7 Ta=-40ºC -0.9 CL=150pF -60 10 100 1k 10k Load Resistance [Ω] 100k 100 1k 10k 100k Frequency [Hz] 40dB Voltage Gain/Phase vs. Frequency Pulse Response GV=40dB, RL=100kΩ, CL=20pF, Ta=25ºC V+=5V, GV=0dB, RL=100kΩ, Ta=25ºC 60 -120 CL=100pF VOL -180 1M Gain V+=5V V+=3V V+=1.8V Phase 0 0 V+=5V -20 -60 V+=3V -40 -120 1V/div INPUT 20 Phase [deg] Voltage Gain [dB] 40 CL=20pF OUTPUT CL=120pF V+=1.8V -60 -180 100 Ver.03 1k 10k 100k Frequency [Hz] 1M 50μs/div [ 10] NJU7026/NJU7027/NJU7028 ■ TYPICAL CHARACTERISTICS 1 Voltage Noise Density vs. Frequency Equivalent Input Noise Voltage [nV/√Hz] Total Harmonic Distortion + Noise [%] THD+N vs. Output Voltage V+=5V, GV=6dB, RF=RG=50kΩ, CL=20pF BW=10Hz-500kHz, Ta=25ºC f=1kHz 0.1 f=100Hz 0.01 0.001 f=20Hz 0.0001 0.01 0.1 1 Output Voltage [Vpp] 10 V+=5V, Ta=25ºC 200 175 150 125 100 75 50 25 0 1 10 100 Frequency [Hz] 1k 10k Channel Separation vs. Frequency Ta=25ºC -60 Channel Separation [dB] -70 -80 V+=1.8V -90 -100 V+=3V -110 -120 V+=5V -130 -140 -150 10 Ver.03 100 1k 10k Frequency [Hz] 100k [ 11] NJU7026/NJU7027/NJU7028 ■ APPLICATION NOTE Single and Dual Supply Voltage Operation The NJU7026/NJU7027/NJU7028 works with both single supply and dual supply when the voltage + − supplied is between V and V . These amplifiers operate from single 1.8 to 5.5V supply and dual ±0.9V to ±2.75V supply. Common-Mode Input Voltage Range When the supply voltage does not meet the condition of electrical characteristics, the range of common-mode input voltage is as follows: − + VICM (typ.) = V to V -0.9 (Ta = 25°C) Difference of VICM when Temperature change, refer to typical characteristic graph. During designing, consider variations in characteristics for use with allowance. Maximum Output Voltage Range When the supply voltage does not meet the condition of electrical characteristics, the range of the typ. value of the maximum output voltage is as follows: - + VOM (typ.) = V +50mV to V -50mV + (RL=100kΩ to V /2, Ta=25°C) During designing, consider variations in characteristics and temperature characteristics for use with allowance. In addition, also note that the output voltage range becomes narrow as shown in typical characteristics graph when an output current increases. Input Voltage Exceeding the Supply Voltage Inputs of the NJU7026/NJU7027/NJU7028 are protected by ESD diodes (shown in Figure1) that will conduct if the input voltages exceed the power supplies by more than approximately 300mV. Momentary voltages greater than 300mV beyond the power supply, inputs can be tolerated if the current is limited to 10mA. Figure2 is easily accomplished with an input resistor. If the input voltage exceeds the supply voltage, the input current must be limited 10mA or less by using a restriction resistance (RLIMIT) as shown in figure2. Current Limit 10mA V+ Vin Vout RLIMIT VFigure2. Input Current Protection for Voltages exceeding the Supply Voltage. Capacitive load The NJU7026/NJU7027/NJU7028 can use at unity gain follower, but the unity gain follower is the most sensitive configuration to capacitive loading. The combination of capacitive load placed directly on the output of an amplifier along with the output impedance of the amplifier creates a phase lag which in turn reduces the phase margin of the amplifier. If phase margin is significantly reduced, the response will cause overshoot and ringing in the step response. The NJU7026/NJU7027/NJU7028 is unity gain stable for capacitive loads of 220pF. To drive heavier capacitive loads, an isolation resistor, RISO as shown Figure3, should be used. RISO improves the feedback loop’s phase margin by making the output load resistive at higher frequencies. The larger the value of RISO, the more stable the output voltage will be. However, larger values of RISO result in reduced output swing, reduced output current drive and reduced frequency bandwidth. V+ R ISO Vin Vout C L VV+ Figure3. Isolating capacitive load +INPUT OUTPUT -INPUT V- Figure1. Simplified Schematic Ver.03 [ 12] NJU7026/NJU7027/NJU7028 ■ PACKAGE DIMENSIONS 2.9±0.2 0°~15° 4 2 1 0.6 2.8±0.2 +0.2 1.6 - 0.1 5 0.2MIN 1.9±0.2 3 0.95±0.1 +0.1 0.1-0.03 1.1±0.1 0.6MAX 0.1MAX Unit: mm 0.4±0.1 0.1 SOT-23-5 Package 0.425±0.2 2.0±0.2 3 0-10° Unit: mm 0.05±0.05 0.9±0.1 +0.2 0.2- 0.1 0.65±0.07 2 +0.05 0.95- 0.15 1 0.425±0.2 +0.1 0.23-0.05 (0.245) 4 1.25±0.1 5 +0.1 0.13-0.03 2.1±0.2 1.3±0.2 SC-88A Package Ver.03 [ 13] NJU7026/NJU7027/NJU7028 ■ PACKAGE DIMENSIONS 0~10° 2.9±0.1 1 0.55±0.1 4.0±0.2 5 2.8±0.1 8 4 +0.05 0.127-0.03 0.65 1.0MAX 0.475±0.1 0.1±0.05 0.08 0.2±0.05 Unit: mm 0.05 M MSOP8 (TVSP8) Package meet JEDEC MO-187-DA / thin type Package Exposed pad *Connect the exposed pad to V-. Unit: mm DFN8-U1(ESON8-U1) Package Ver.03 [ 14] NJU7026/NJU7027/NJU7028 ■ PACKAGE DIMENSIONS +0.3 5.0 - 0.1 0 ~ 10º 0.5±0.2 4.4±0.2 6.4±0.3 8 14 7 1 0.65 +0.1 0.67MAX 1.15±0.1 0.15-0.05 0.1±0.1 Unit: mm 0.1 0.22±0.1 0.1 M SSOP14 Package [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. Ver.03 [ 15]