NJU7076/NJU7077/NJU7078 Precision, Low Noise, Rail-to-Rail Output, CMOS Operational Amplifier ■ GENERAL DESCRIPTION ■ PACKAGE OUTLINE The NJU7076/NJU7077/NJU7078 is a high precision Rail-to-Rail output Single/Dual/Quad CMOS operational amplifier featuring a low noise of 10nV/√Hz typ., low input offset voltage of 150µV max., low temperature drift of 0.5µV/°C typ. and low bias current of 1pA typ.. The output swing can reach 20 mV from the rails, while driving a 10kΩ load (at 5V operation). The NJU7076/NJU7077/ NJU7078 also has a high RF noise immunity which can reduce malfunctions caused by RF noises from mobile phones and others. The combination of these specifications makes the NJU7076/ NJU7077/NJU7078 well-suited for sensor applications such as a temperature sensor, weight sensor and others, high precision current sensing amplifiers and current voltage converters. NJU7076F (SOT-23-5) NJU7077R (MSOP8(VSP8)) NJU7078V (SSOP14) ■ FEATURES ●High Precision Low Offset Voltage NJU7076/NJU7077 150μV max. NJU7078 200μV max. Low Offset Voltage Drift 0.5μV/°C typ. ●Low Noise 10nV/√Hz typ. ●Low Input Bias Current 1pA typ. ●Rail-to-Rail Output + RL=10kΩ 0.02V to 4.98V typ. (V =5V) + RL=600Ω 0.08V to 4.92V typ. (V =5V) ●Ground sense ●RF Noise Immunity ●Operating Voltage 2.2V to 5.5V ●Unity-Gain Stable ●Package NJU7076 SOT-23-5 NJU7077 MSOP8(VSP8)* *MEET JEDEC MO-187-DA NJU7078 SSOP14 ■ APPLICATIONS ●Thermocouple / Thermopile Amplifiers ●Strain Gauge / Pressure sensor Amplifiers ●Load Cell and Bridge Transducer Amplifiers ●High Resolution Data Acquisition ●Precision Current Sensing ●Battery monitoring ●Photo-Diode pre amplifier Ver.05 [ 1] NJU7076/NJU7077/NJU7078 ■ PIN CONFIGURATION (Top View) (Top View) (Top View) OUTPUT 1 V- 2 +INPUT 5 3 4 A OUTPUT 1 8 A -INPUT 2 7 B OUTPUT A +INPUT 3 6 B -INPUT V- 4 5 B +INPUT V+ -INPUT NJU7076F V+ 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 NJU7078V NJU7077R ■ ABSOLUTE MAXIMUM RATINGS(Ta=25˚C, unless otherwise noted.) PARAMETER SYMBOL + Supply Voltage V -V Differential Input Voltage (2) 7 VID Input Voltage Power Dissipation RATING - ±7 - VIN (4) SOT-23-5 MSOP8(VSP8) SSOP14 Topr Storage Temperature Range Tstg V (3) V + V - 0.3 to V + 0.3 V (2-layer / 4-layer) mW 480 / 650 500 / 660 555 / 690 mW mW mW -40 to +125 °C -55 to +150 °C PD Operating Temperature Range UNIT (1) + - (1) Supply Voltage is the voltage difference between V and V . (2) Differential voltage is the voltage difference between +INPUT and -INPUT. (3) For supply voltage less than 7V, the absolute maximum rating is equal to the supply voltage. (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. 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 Power Dissipation vs. Temperature Power Dissipation PD [mW] 800 700 SSOP14 (4-Layer) 600 MSOP8(VSP8) (4-Layer) 500 SOT-23-5 (4-Layer) 400 SSOP14 (2-Layer) 300 MSOP8(VSP8) (2-Layer) 200 SOT-23-5 (2-Layer) 100 0 0 25 50 75 100 125 Ambient Temperature [ºC] 150 ■ RECOMMENDED OPERATING CONDITIONS(Ta=25˚C) PARAMETER Supply Voltage Ver.05 Value UNIT +2.2 to +5.5 (±1.1 to ±2.75) V [ 2] NJU7076/NJU7077/NJU7078 ■ ELECTRICAL CHARACTERISTICS(V+=5V, V-=0V, VCOM=V+/2, Ta=25˚C, unless otherwise noted.) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT 100 20 20 0.5 1 1 130 150 400 200 400 5 - µV µV µV µV µV/°C pA pA dB 100 - - dB 70 70 70 70 4.95 4.95 4.85 4.85 4.9 4.85 0 0 90 90 4.98 4.92 4.96 0.02 0.08 0.04 - 0.05 0.05 0.15 0.2 0.1 0.15 4 4 dB dB dB dB V V V V V V V V V V V V V V - 0.6 1.2 2.3 - 0.9 0.9 1.8 1.8 3.5 3.5 mA mA mA mA mA mA - 1.3 - MHz - 60 - deg - 12 - dB - 10 - nV/√Hz - 0.5 - V/µs - 0.01 - % - 140 - dB DC CHARACTERISTICS Input Offset Voltage NJU7076/NJU7077 VIO Ta=-40°C to 125°C NJU7078 Input Offset Voltage Drift Input Bias Current Input Offset Current Open-Loop Voltage Gain Common-Mode Rejection Ratio Supply Voltage Rejection Ratio High-level Output Voltage Low-level Output Voltage Common-Mode Input Voltage Range Ta=-40°C to 125°C (5) ΔVIO/ΔT Ta=-40°C to 125°C IB IIO Vo=0.5V to 4.5V, RL=10kΩ to 2.5V AV Vo=0.5V to 4.5V, RL=10kΩ to 2.5V, Ta= -40°C to 125°C VICM=0V to 4V CMR VICM=0V to 4V, Ta= -40°C to 125°C + V =2.2V to 5.5V SVR + V =2.2V to 5.5V, Ta= -40°C to 125°C RL=10kΩ to 2.5V RL=10kΩ to 2.5V, Ta= -40°C to 125°C RL=600Ω to 2.5V VOH RL=600Ω to 2.5V, Ta= -40°C to 125°C ISOURCE=2mA ISOURCE =2mA, Ta= -40°C to 125°C RL=10kΩ to 2.5V RL=10kΩ to 2.5V, Ta= -40°C to 125°C RL=600Ω to 2.5V VOL RL=600Ω to 2.5V, Ta= -40°C to 125°C ISINK=2mA ISINK=2mA, Ta= -40°C to 125°C CMR≥70dB VICM CMR≥70dB, Ta= -40°C to 125°C Supply Current(All Amplifiers) NJU7076 NJU7077 ISUPPLY NJU7078 No Signal, RL=OPEN No Signal, RL=OPEN, Ta = -40°C to 125°C No Signal, RL=OPEN No Signal, RL=OPEN, Ta = -40°C to 125°C No Signal, RL=OPEN No Signal, RL=OPEN, Ta = -40°C to 125°C AC CHARACTERISTICS Gain Bandwidth Product GBW Phase Margin Φm Gain Margin Gm Equivalent Input Noise Voltage en GV=40dB, RF=100kΩ, RL=10kΩ to 2.5V, CL=20pF, f=100kHz GV=40dB, RF=100kΩ, RL=10kΩ to 2.5V, CL=20pF GV=40dB, RF=100kΩ, RL=10kΩ to 2.5V, CL=20pF f=1kHz GV=0dB, RL=10kΩ to 2.5V, CL=20pF, VIN=3VPP Total Harmonic Distortion GV=20dB, RL=10kΩ to 2.5V, f=1kHz, THD+N + Noise VO=3VPP Channel Separation CS f=1kHz, NJU7077/NJU7078 (5) Guaranteed by two points of Temperature -40˚C and +125˚C Slew Rate Ver.05 SR [ 3] NJU7076/NJU7077/NJU7078 ■ ELECTRICAL CHARACTERISTICS(V+=2.2V, V-=0V, VCOM=V+/2, Ta=25˚C, unless otherwise noted.) PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT 100 60 60 0.6 1 1 130 250 400 300 400 5 - µV µV µV µV µV/°C pA pA dB 100 - - dB 70 70 2.15 2.15 2.1 2.05 2.05 2 0 0 90 2.18 2.14 2.13 0.02 0.06 0.07 - 0.05 0.05 0.1 0.15 0.15 0.2 1.2 1.2 dB dB V V V V V V V V V V V V V V - 0.55 1.0 2.0 - 0.82 0.82 1.5 1.5 3.0 3.0 mA mA mA mA mA mA - 1.2 - MHz - 60 - deg - 12 - dB - 10 - nV/√Hz - 0.5 - V/µs - 0.01 - % - 140 - dB DC CHARACTERISTICS Input Offset Voltage NJU7076/NJU7077 VIO Ta= -40°C to 125°C NJU7078 Input Offset Voltage Drift Input Bias Current Input Offset Current Open-Loop Voltage Gain Common-Mode Rejection Ratio High-level Output Voltage Low-level Output Voltage Common-Mode Input Voltage Range Ta= -40°C to 125°C (5) ΔVIO/ΔT Ta= -40°C to 125°C IB IIO Vo=0.6V to 1.6V, RL=10kΩ to 1.1V AV Vo=0.6V to 1.6V, RL=10kΩ to 1.1V, Ta= -40°C to 125°C VICM=0V to 1.2V CMR VICM=0V to 1.2V, Ta= -40°C to 125°C RL=10kΩ to 1.1V RL=10kΩ to 1.1V, Ta= -40°C to 125°C RL=600Ω to 1.1V VOH RL=600Ω to 1.1V, Ta= -40°C to 125°C ISOURCE=2mA ISOURCE=2mA, Ta= -40°C to 125°C RL=10kΩ to 1.1V RL=10kΩ to 1.1V, Ta= -40°C to 125°C RL=600Ω to 1.1V VOL RL=600Ω to 1.1V, Ta= -40°C to 125°C ISINK=2mA ISINK=2mA, Ta= -40°C to 125°C CMR≥70dB VICM CMR≥70dB, Ta= -40°C to 125°C Supply Current(All Amplifiers) NJU7076 NJU7077 ISUPPLY NJU7078 No Signal, RL=OPEN No Signal, RL=OPEN, Ta = -40°C to 125°C No Signal, RL=OPEN No Signal, RL=OPEN, Ta = -40°C to 125°C No Signal, RL=OPEN No Signal, RL=OPEN, Ta = -40°C to 125°C AC CHARACTERISTICS Gain Bandwidth Product GBW Phase Margin Φm Gain Margin Gm Equivalent Input Noise Voltage en GV=40dB, RF=100kΩ, RL=10kΩ to 1.1V, CL=20pF, f=100kHz GV=40dB, RF=100kΩ, RL=10kΩ to 1.1V, CL=20pF GV=40dB, RF=100kΩ, RL=10kΩ to 1.1V, CL=20pF f=1kHz GV=0dB, RL=10kΩ to 1.1V, CL=20pF, VIN=1VPP Total Harmonic Distortion GV=20dB, RL=10kΩ to 1.1V, f=1kHz, THD+N + Noise VO=1VPP Channel Separation CS f=1kHz, NJU7077/NJU7078 (5) Guaranteed by two points of Temperature -40˚C and +125˚C Slew Rate Ver.05 SR [ 4] NJU7076/NJU7077/NJU7078 ■ TYPICAL CHARACTERISTICS Input Offset Voltage vs. Temperature 500 V+=2.2V, V-=0V, VCOM=V+/2 500 400 400 300 300 Input Offset Voltage [μV] Input Offset Voltage [μV] Input Offset Voltage vs. Temperature V+=5V, V-=0V, VCOM=V+/2 200 100 0 -100 -200 -300 -400 200 100 0 -100 -200 -300 -400 -500 -500 -50 -25 0 25 50 75 100 125 150 Ambient Temperature [ºC] -50 -25 Input Offset Voltage Distribution Input Offset Voltage Distribution V+=5V, V-=0V, VCOM=V+/2, Ta=25ºC 40% Number of Amplifiers [%] Number of Amplifiers [%] 35% 30% 25% 20% 15% 10% 5% 30% 25% 20% 15% 10% 5% 0% 0% -200 -100 0 100 Input Offset Voltage [μV] 200 -200 Input Offset Voltage Drift Distribution -100 0 100 Input Offset Voltage [μV] 200 Input Offset Voltage Drift Distribution V+=5V, V-=0V, VCOM=V+/2 40% V+=2.2V, V-=0V, VCOM=V+/2 40% 35% Number of Amplifiers [%] 35% Number of Amplifiers [%] V+=2.2V, V-=0V, VCOM=V+/2, Ta=25ºC 40% 35% 30% 25% 20% 15% 10% 5% 30% 25% 20% 15% 10% 5% 0% 0% -2.5 Ver.05 0 25 50 75 100 125 150 Ambient Temperature [ºC] -1.5 -0.5 0.5 1.5 2.5 Input Offset Voltage Drift [μV/ºC] 3.5 -2.5 -1.5 -0.5 0.5 1.5 2.5 Input Offset Voltage Drift [μV/ºC] 3.5 [ 5] NJU7076/NJU7077/NJU7078 ■ TYPIC AL CHARACTERISTICS Input Offset Voltage vs. Common-Mode Input Voltage Input Offset Voltage vs. Supply Voltage V-=0V, VCOM 0.4 0.4 0.3 0.3 0.2 Ta=125ºC Ta=25ºC 0.1 0 -0.1 -0.2 V+=5V, V-=0V 0.5 Input Offset Voltage [mV] Input Offset Voltage [mV] 0.5 =V+/2 Ta=-40ºC -0.3 -0.4 0.2 Ta=25ºC 0 -0.1 -0.2 Ta=-40ºC -0.3 -0.4 -0.5 -0.5 0 1 2 3 4 5 Supply Voltage V+ [V] 6 7 -1 0 1 2 3 4 Common-Mode Input Voltage [V] Input Offset Voltage vs. Common-Mode Input Voltage Input Offset Voltage Change [μV」 Input Offset Voltage [mV] 0.3 0.2 Ta=125ºC Ta=25ºC 0 -0.1 -0.2 Ta=-40ºC -0.3 -0.4 -0.5 15 10 5 0 -5 -10 -15 -20 -1 -0.5 0 0.5 1 1.5 Common-Mode Input Voltage [V] 2 0 Input Bias Current vs. Temperature Open-Loop Voltage Gain [dB] 1500 1250 1000 V+=5V 500 20 30 40 Time [sec] 50 60 V-=0V, RL=10kΩ 160 1750 750 10 Open-Loop Voltage Gain vs. Temperature V-=0V, VCOM=V+/2 2000 Input Bias Current [pA] V+=3.3V, V-=0V, VCOM=V+/2, Ta=25ºC 20 0.4 0.1 5 Warm-Up Vio Drift V+=2.2V, V-=0V 0.5 V+=2.2V 250 0 150 V+=5.0V 140 130 120 V+=2.2V 110 100 90 80 25 Ver.05 Ta=125ºC 0.1 50 75 100 125 Ambient Temperature [ºC] 150 -50 -25 0 25 50 75 100 125 150 Ambient Temperature [ºC] [ 6] NJU7076/NJU7077/NJU7078 ■ TYPICAL CHARACTERISTICS SVR vs. Frequency V+=5V, V-=0V, VIN=1Vpp, RS=100Ω, RF=10kΩ, Ta=25ºC 120 Supply Voltage Rejection Ratio [dB] Common-Mode Rejection Ratio [dB] 120 CMR vs. Frequency V+=5V, V-=0V, VIN=1Vpp, RS=100Ω, RF=10kΩ, Ta=25ºC 110 100 90 80 70 60 100 80 60 -SVR 40 20 10 100 1k 10k Frequency [Hz] 100k 10 Supply Current per Amplifier vs. Supply Voltage Supply Current per Amplifier [μA] Supply Current per Amplifier [μA] Ta=+25ºC 0.6 0.5 0.4 Ta=+85ºC Ta=-40ºC 0.3 0.2 0.1 0 100k 0.8 0.7 V+=5V 0.6 0.5 0.4 V+=2.2V 0.3 0.2 0.1 0 0 1 2 3 4 5 Supply Voltage V+ [V] 6 7 -50 Maximum Output Voltage vs. Output Current 4.5 2.0 Output Voltage [V] 3.5 Ta=-40ºC 3.0 2.5 2.0 Ta=-40ºC 1.5 Ta=25ºC 1.0 Ta=125ºC 1.6 Ta=25ºC 1.4 1.2 Ta=-40ºC 1.0 0.8 Ta=25ºC 0.6 Ta=125ºC 0.4 Ta=125ºC 0.5 ISOURCE 1.8 Ta=125ºC Ta=25ºC 0.2 ISINK 0.0 0 25 50 75 100 125 150 Ambient Temperature [ºC] V+=2.2V, V-=0V 2.2 ISOURCE 4.0 -25 Maximum Output Voltage vs. Output Current V+=5V, V-=0V 5.0 Output Voltage [V] 1k 10k Frequency [Hz] Gv=0dB, RL=OPEN 0.9 0.8 0.7 100 Supply Current per Amplifier vs. Temperature Gv=0dB, RL=OPEN 0.9 ISINK 0.0 0.1 Ver.05 +SVR 1 10 Output Current [mA] 100 0.1 1 10 Output Current [mA] 100 [ 7] NJU7076/NJU7077/NJU7078 ■ TYPICAL CHARACTERISTICS 40dB Voltage Gain / Phase vs. Frequency 40dB Voltage Gain / Phase vs. Frequency V+=5V, V-=0V, Gv=40dB, RL=10kΩ, Ta=25ºC 60 40 40 Phase -20 -60 CL=680pF -40 -120 CL=100pF CL=20pF -60 100 1k 10k 100k Frequency [Hz] Voltage Gain [dB] 0 0 Phase [deg] 1M 20 Phase -20 -60 -40 -180 10M CL=100pF CL=20pF 100 10k 100k Frequency [Hz] 1M -180 10M V+=2.2V, V-=0V, Gv=40dB, RL=10kΩ, CL=20pF 60 40 0 0 Phase -20 -60 Ta=+125ºC -40 1k 10k 100k Frequency [Hz] 0 0 Phase -20 -60 Ta=+125ºC -40 -180 10M -60 1M 100 Voltage Gain vs. Frequency 8 8 CL=680pF 4 CL=100pF 0 -2 CL=20pF -4 Voltage Gain [dB] 10 2 10k 100k Frequency [Hz] 1M -180 10M V+=2.2V, V-=0V, Gv=0dB, RL=10kΩ, Ta=25ºC 12 10 6 1k Voltage Gain vs. Frequency V+=5V, V-=0V, Gv=0dB, RL=10kΩ, Ta=25ºC 12 -120 Ta=+25ºC Ta=-40ºC Ta=-40ºC 100 Gain 20 -120 Ta=+25ºC -60 Voltage Gain [dB] 20 Phase [deg] Gain Voltage Gain [dB] 1k 40dB Voltage Gain/Phase vs. Frequency V+=5V, V-=0V, Gv=40dB, RL=10kΩ, CL=20pF 40 CL=680pF 6 4 2 CL=100pF 0 -2 CL=20pF -4 -6 -6 -8 -8 10k Ver.05 -120 CL=680pF -60 40dB Voltage Gain/Phase vs. Frequency 60 0 0 Phase [deg] Voltage Gain [dB] 20 Phase [deg] Gain Gain Voltage Gain [dB] V+=2.2V, V-=0V, Gv=40dB, RL=10kΩ, Ta=25ºC 60 100k 1M Frequency [Hz] 10M 10k 100k 1M Frequency [Hz] 10M [ 8] NJU7076/NJU7077/NJU7078 ■ TYPICAL CHARACTERISTICS 10 THD+N vs. Output Voltage THD+N vs. Output Voltage V+=5V, V-=0V, RG=1kΩ, RF=10kΩ, RL=Ω V+=2.2V, V-=0V, RG=1kΩ, RF=10kΩ, RL=Ω 10 1 1 f=20kHz THD+N [%] THD+N [%] f=20kHz 0.1 0.1 f=1kHz f=1kHz 0.01 0.01 f=20Hz f=20Hz 0.1 1 Output Voltage [Vrms] 10 0.001 0.01 Pulse Response V+=2.2V, V-=0V, RL=10kΩ, Gv=0dB, Ta=25ºC CL=20pF CL=100pF CL=680pF INPUT CL=20pF CL=100pF CL=680pF OUTPUT Time [2μs/div] Time [2μs/div] Voltage Noise Density vs. Frequency Equivalent Input Voltage Noise V+=5V, V-=0V, Ta=25ºC 100 VDD=5V, BP=1~100Hz,Ta=25ºC 2 90 Equivalent Input Noise Voltage[μV] Equivalent Input Noise Voltage [nV/√Hz] OUTPUT Ver.05 10 Pulse Response INPUT 80 70 60 50 40 30 20 10 0 1 0.1 1 Output Voltage [Vrms] V+=5V, V-=0V, RL=10kΩ, Gv=0dB, Ta=25ºC Voltage [0.5V/div] Voltage [1.5V/div] 0.001 0.01 10 100 Frequency [Hz] 1k 10k 1.5 1 0.5 0 -0.5 -1 -1.5 -2 0 2 4 Time[sec] 6 8 [ 9] NJU7076/NJU7077/NJU7078 ■ TYPICAL CHARACTERISTICS Channel Separation vs. Frequency VO=1Vpp, RS=100Ω, RF=10kΩ, Ta=25ºC 160 Channel Separation [dB] 150 V+=5V 140 130 V+=2.2V 120 110 100 90 80 10 Ver.05 100 1k 10k Frequency [Hz] 100k [ 10] NJU7076/NJU7077/NJU7078 ■ PACKAGE DIMENSIONS 2.9±0.2 0°~15° 4 1 2 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 - +0.3 2.9 - 0.1 1 4 0.55±0.2 4.0±0.3 5 2.8±0.2 8 +0.1 0.127 -0.05 0.65 1.1±0.1 0.6MAX +0.1 0.1 - 0.05 Unit: mm 0.1 0.2±0.1 0.1 M MSOP8(VSP8)* Package *MEET JEDEC MO-187-DA Ver.05 [ 11] NJU7076/NJU7077/NJU7078 ■ 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.05 [ 12]