NJM2068 LOW-NOISE DUAL OPERATIONAL AMPLIFIER ■ GENERAL DESCRIPTION The NJM2068 is a high performance, low noise dual operational amplifier. This amplifier features popular pin-out, superior noise performance, and superior total harmonic distortion. This amplifier also features guaranteed noise performance with substantially higher gain-bandwidth product and slew rate, which far exceeds that of the 4558 type amplifier. The specially designed low noise input transistors allow the NJM2068 to be used in very low noise signal processing applications such as audio preamplifiers and servo error amplifier. The D-Rank type products(NJM2068DD/LD/MD) have specified maximum limits for equivalent input noise voltage. ■ FEATURES ● Operating Voltage ● Low Total Harmonic Distortion ● Low Noise Voltage ● High Slew Rate ● Unity Gain Bandwidth ● Bipolar Technology ● Package Outline ■ PACKAGE OUTLINE NJM2068D (DIP8) NJM2068M (DMP8) NJM2068V (SSOP8) NJM2068L (SIP8) ±4V~±18V 0.001% 0.56µV (FLAT+JISA) 6V/µs 27MHz (f=10kHz) DIP8, DMP8, SIP8, SSOP8 ■ PIN CONFIGURATION Top View 1 2 3 8 A 7 A B 6 1 4 B 2 5 DIP8, DMP8, SSOP8 Package 3 4 5 6 SIP8 Package 7 8 PIN FUNCTION 1.A OUTPUT 2.A –INPUT 3.A +INPUT 4.V 5.B +INPUT 6.B –INPUT 7.B OUTPUT 8.V+ ■ EQUIVALENT CIRCUIT ( 1/2 Shown ) Ver.2011-03-18 -1- NJM2068 ■ ABSOLUTE MAXIMUM RATINGS(Ta=25°C) PARAMETER SYMBOL RATING UNIT V /V ±18 V Differential Input Voltage Range VID ±30 V Common Mode Input Voltage Range VIC ±15 (Note1) V PD DIP8: 500 DMP8: 300 SSOP8: 250 SIP8: 800 mW Operating Temperature Range Topr -20~+75 ºC Storage Temperature Range Tstg -40~+125 ºC + Supply Voltage Power Dissipation - (Note1) For supply voltage less than ±15V, the absolute maximum input voltage is equal to supply voltage. ■ RECOMMENDED OPERATING VOLTAGE(Ta=25°C) PARAMETER Supply Voltage SYMBOL + TEST CONDITION - V /V MIN. TYP. MAX. UNIT ±4 - ±18 V MIN. TYP. MAX. UNIT - 0.3 3 mV - 5 200 nA ■ ELECTRICAL CHARACTERISTICS(V+/V-=±15V, Ta=25°C, unless otherwise noted.) PARAMETER SYMBOL Input Offset Voltage VIO Input Offset Current IIO TEST CONDITION RS≤10kΩ Input Bias Current IB - 150 1000 nA Input Resistance RIN 50 300 - kΩ Voltage Gain AV RL≥2kΩ, VO=±10V 90 120 - dB Maximum Output Voltage VOM RL≥2kΩ ±12 ±13.5 - V Common Mode Input Voltage VICM ±12 ±13.5 - V Common Mode Rejection Ratio CMR RS≤10kΩ 80 110 - dB Supply Voltage Rejection Ratio SVR RS≤10kΩ 80 120 - dB Slew Rate SR RL≥2kΩ - 6 - V/µs Gain Bandwidth Product1 GB1 f=10kHz - 27 - MHz Gain Bandwidth Product2 GB2 Unity Gain Frequency Total Harmonic Distortion fT THD Equivalent Input Noise Voltage VNI Supply Current ICC f=100kHz - 19 - MHz AV=1 - 5.5 - MHz AV=20dB, VO=5V, RL=2kΩ, f=1kHz - 0.001 - % FLAT+JIS A, RS=300Ω - 0.44 0.56 µV - 5 8 mA ■ ELECTRICAL CHARACTERISTICS (D-Rank type(Note2), V+/V-=±15V, Ta=25°C, unless otherwise noted.) PARAMETER SYMBOL Equivalent Input Noise Voltage VNI TEST CONDITION RIAA,RS=2.2kΩ MIN. TYP. MAX. UNIT - - 1.4 µV (Note2)D-rank type is a Equivalent Input Noise Voltage selected product. It s only DIP, DMP and SIP package. ■ NOTICE Oscillation might be caused when capacitor type load were connected. It is recommendable to insert series resistor (about 50Ω) at the output for preventing oscillation. -2- Ver.2011-03-18 NJM2068 ■ TYPICAL CHARACTERISTICS Maximum Output Voltage vs. Frequency 40dB Gain/Phase vs. Frequency V+/V-=±15V, RL=2kΩ, CL=100pF, Ta=25ºC gain 40 Phase 0 10 -45 0 -90 -10 -135 -20 10k Phase [deg] Gain [dB] 30 20 25 20 15 10 5 -180 10M 100k 1M Frequency [Hz] 0 10k Maximum Output Voltage vs. Output Current +VOM 8 4 0 -4 -8 -VOM -12 25 20 15 10 -16 5 0 0 10 20 30 40 50 60 Output Current [mA] 70 80 10 Voltage Noisevs. Source Resistance 100 1k 10k Load Resistance [Ω] 100k Supply Current vs. Supply Voltage V+/V-=±15V, JIS A, Ta=25ºC 1.6 No Signal, RL=∞, Ta=25ºC 6 Weighting 1.4 5 1.2 Rs 100 10k Supply Current [mA] Equivalent Input Noise Voltage [µVrms] 1M V+/V-=±15V, Ta=25ºC 30 Maximum Output Voltage Vopp [V] Maximum Output Voltage [V] 12 100k Frequency [Hz] Maximum Output Voltage vs. Load Resistance V+/V-=±15V, Ta=25ºC 16 V+/V-=±15V, RL=2kΩ, Ta=25ºC 30 Maximum Output Voltage Vopp [V] 50 1 0.8 0.6 0.4 4 3 2 1 0.2 0 0 10 Ver.2011-03-18 100 1k 10k Source Resistance [Ω] 100k 0 ±2 ±4 ±6 ±8 ±10 ±12 ±14 ±16 ±18 + Supply Voltage V /V [V] -3- NJM2068 ■ TYPICAL CHARACTERISTICS Supply Current vs. Temperature Input Offset Voltage vs. Temperature V+/V-=±15V 6.0 5.5 Input Offset Voltage [mV] 1 Supply Current [mA] 5.0 4.5 4.0 3.5 3.0 0.5 0 -0.5 -1 -1.5 2.5 2.0 -2 -50 -25 0 25 50 75 100 Ambient Temperature [ºC] 125 -50 V+/V-=±15V 220 -25 0 25 50 75 100 Ambient Temperature [ºC] 125 Maximum Output Voltage vs. Temperature Input Bias Current vs. Temperature V+/V-=±15V, RL=2kΩ 15 Maximum Output Voltage [V] 200 Input Bias Current [nA] V+/V-=±15V 1.5 180 160 140 120 100 +VOM 10 5 0 -5 -10 -VOM -15 -50 -25 0 25 50 75 100 Ambient Temperature [ºC] 125 -50 -25 0 25 50 75 100 Ambient Temperature [ºC] 125 Maximum Output Voltage vs. Supply Voltage Ta=25ºC 20 RL=10kΩ Maximum Output Voltage [V] 16 12 +VOM 8 RL=2kΩ 4 0 -4 -8 RL=2kΩ -VOM -12 RL=10kΩ -16 -20 0 -4- ±4 ±8 ±12 ±16 + Supply Voltage V /V [V] ±20 Ver.2011-03-18 NJM2068 ■ TEST CIRCUIT Noise Voltage (RIAA) measurement circuit 3.3µ +15V -15V 100µ Rs 2.2k 100µ 40dB Amp 30kHz LPF 0.47µ 2.2µ Vout 56k 30k 330k 0.0024µ 0.0082µ 220k 47µ 610 [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.2011-03-18 -5- Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: NJR: NJM2068D NJM2068M NJM2068L NJM2068E NJM2068MD NJM2068DD NJM2068MD-T1 NJM2068MD-T2