LM2902

LM2902 LOW POWER QUAD OPERATIONAL AMPLIFIER ■ WIDE GAIN BANDWIDTH: 1.3MHz ■ INPUT COMMON-MODE VOLTAGE RANGE INCLUDES GROUND ■ LARGE VOLTAGE GAIN: 100dB ■ VERY LOW SUPPLY CURRENT/AMPLI: 375µA ■ LOW INPUT BIAS CURRENT: 20nA ■ LOW INPUT OFFSET CURRENT:2nA ■ WIDE POWER SUPPLY RANGE: DIP14 SINGLE SUPPLY: +3V TO +30V DUAL SUPPLIES: ±1.5V TO ±15V TSSOP14 DESCRIPTION This circuit consists of four independent, high gain, internally frequency compensated operational amplifiers which were designed specially for automotive and industrial control systems. It operates from a single power supply over a wide range of voltages. Operation from split power supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply voltage. SOP14 ORDERING INFORMATION DEVICE Package Type MARKING Packing Packing Qty LM2902N DIP14 LM2902 TUBE 1000/box LM2902 SOP14 LM2902 REEL 2500/reel TSSOP14 LM2902 REEL 2500/reel LM2902P PIN CONNECTIONS (top view) 14 Output 4 Output 1 1 Inverting Input 1 2 - - 13 Inverting Input 4 Non-inverting Input 1 3 + + 12 Non-inverting Input 4 11 VCC - VCC + 4 Non-inverting Input 2 5 + + 10 Non-inverting Input 3 Inverting Input 2 6 - - 9 Inverting Input 3 8 Output 3 Output 2 7 www.slkormicro.com 1 LM2902 SCHEMATIC DIAGRAM (1/4 LM2902) V CC 6µA 4µA 100µA Q5 Q6 CC Inverting input Q3 Q2 Q1 Q7 Q4 R SC Q11 Non-inverting input Output Q13 Q10 Q8 Q9 Q12 50mA GND ABSOLUTE MAXIMUM RATINGS Symbol Parameter VCC Supply Voltage Vid Differential Input Voltage VI Input Voltage Value 1) ptot Iin 1. 2. Unit ±16 to 32 V +32 V -0.3 to +32 V Infinite Output Short-circuit to Ground Power Dissipation N Suffix D Suffix Input Current 2) 500 400 mW 50 mA Toper Operating Free-Air Temperature Range -40 to +125 °C Tstg Storage Temperature Range -65 to +150 °C Short-circuit from the output to VCC can cause excessive heating if V CC > 15V. The maximum output current is approximately 40mA independent of the magnitude of VCC. Destructive dissipation can result from simultaneous short-circuit on all amplifiers. This input current only exists when the voltage at any of the input leads is driven negative. It is due to the collector-base junction of the input PNP transistor becoming forward biased and thereby acting as input diodes clamps. In addition to this diode action, there is also NPN parasitic action on the IC chip. This transistor action can cause the output voltages of the Op-Amps to go to the VCC voltage level (or to ground for a large overdrive) for the time duration than an input is driven negative. This is not destructive and normal output will set up again for input voltage higher than -0.3V. www.slkormicro.com 2 LM2902 ELECTRICAL CHARACTERISTICS VCC+ = 5V, V cc- = Ground, VO = 1.4V, Tamb = 25°C (unless otherwise specified) Symbol Parameter Min. Typ. Max. Unit Vio Input Offset Voltage 1) Tamb = +25°C Tmin ≤ Tamb ≤ Tmax. 2 7 9 mV Iio Input Offset Current Tamb = +25°C Tmin ≤ Tamb ≤ Tmax. 2 30 40 nA I ib Input Bias Current 2) Tamb = +25°C Tmin ≤ Tamb ≤ Tmax. 20 150 300 nA Avd Large Signal Voltage Gain VCC+ = +15V,RL=2kΩ, Vo = 1.4V to 11.4V Tamb = +25°C Tmin ≤ Tamb ≤ Tmax. 50 25 100 SVR Supply Voltage Rejection Ratio (RS ≤10kΩ) Tamb = +25°C Tmin ≤ Tamb ≤ Tmax. 65 65 110 Icc Supply Current, all Amp, no load Tamb = +25°C VCC = +5V VCC = +30V Tmin ≤ Tamb ≤ Tmax. VCC = +5V VCC = +30V 0.7 1.5 0.8 1.5 Vicm Input Common Mode Voltage Range (Vcc= +30V)3) Tamb = +25°C Tmin ≤ Tamb ≤ Tmax. 0 0 CMR Common-mode Rejection Ratio (RS ≤10kΩ) Tamb = +25°C Tmin ≤ Tamb ≤ Tmax. 70 60 80 Output Short-circuit Current (Vid = +1V) VCC = +15V, Vo = +2V 20 40 Isink Output Sink Current (Vid = -1V) VCC = +15V, Vo = +2V VCC = +15V, Vo = +0.2V 10 12 20 50 26 26 27 27 27 VOH High Level Output Voltage (Vcc + 30V) Tamb = +25°C RL = 2kΩ Tmin ≤ Tamb ≤ Tmax. Tamb = +25°C RL = 10kΩ Tmin ≤ Tamb ≤ Tmax. (Vcc + 5V), RL = 2kΩ Tmin ≤ Tamb ≤ Tmax. Tamb = +25°C IO dB 1.2 3 1.2 3 V CC -1.5 VCC -2 mA V dB 70 mA mA µA 28 V 3.5 3 VOL Low Level Output Voltage (RL = 10kΩ) Tamb = +25°C Tmin ≤ Tamb ≤ Tmax SR Slew Rate Vcc = 15V, Vi = 0.5 to 3V, RL = 2kΩ, CL = 100pF, unity gain www.slkormicro.com V/mV 5 3 20 20 mV V/µs 0.4 LM2902 Symbol THD Total Harmonic Distortion f = 1kHz, AV = 20dB, RL = 2kΩ, Vo = 2Vpp, C L = 100pF, Vcc = 30V 4. Typ. Max. Unit MHz 1.3 % 0.015 nV -----------Hz Equivalent Input Noise Voltage f = 1kHz, RS = 100Ω, Vcc = 30V 40 DVio Input Offset Voltage Drift 7 30 µV/°C DIio Input Offset Current Drift 10 200 pA/°C Channel Separation 4) 1kHz ≤ f ≤ 20kHz 120 V O1/VO2 3. Min. GBP en 1. 2. Parameter Gain Bandwidth Product Vcc = 30V,Vin = 10mV, RL = 2kΩ, CL = 100pF dB VO = 1.4V, RS = 0Ω, 5V < VCC+ < 30V, 0V < Vic < VCC+ - 1.5V The direction of the input current is out of the IC. This current is essentially constant, independent of the state of the output, so no loading charge change exists on the input lines The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V. The upper end of the common-mode voltage range is VCC+ –1.5V, but either or both inputs can go to +32V without damage. Due to the proximity of external components insure that coupling is not originating via stray capacitance between these external parts. This typically can be detected as this type of capacitance increases at higher frequences. INPUT VOLTAGE RANGE INPUT BIAS CURRENT versus AMBIENT TEMPERATURE 24 21 18 15 12 9 6 3 0 INPUT VOLTAGE (V) IB (nA) 15 10 0 AMBIENT TEMPERATURE (°C) SUPPLY CURRENT (mA) OUTPUT CURRENT (mA) VCC IO + 50 40 30 20 10 -55 -35 ID mA 3 - 2 + Tamb = 0°C to +125°C 1 Tamb = -55°C -15 5 25 45 65 85 105 125 0 TEMPERATURE (°C) www.slkormicro.com 15 4 70 0 10 SUPPLY CURRENT CURRENT LIMITING (Note 1) 60 5 POWER SUPPLY VOLTAGE (±V) 90 - Positive 5 -55-35-15 5 25 45 65 85 105 125 80 Négative 10 20 POSITIVE SUPPLY VOLTAGE (V) 4 30 LM2902 GAIN BANDWIDTH PRODUCT VOLAGE FOLLOWER PULSE RESPONSE GBP (mhz) 4 OUTPUT VOLTAGE (V) GAIN BANDWIDTH PRODUCT (MHz) 1.35 1.30 1.25 1.2 1.15 1.1 1.05 1 -95 -9 RL 2 k Ω VCC = +15V 3 2 1 0 INPUT VOLTAGE (V) 3 -55-35-15 5 25 45 65 85 105 125 AMBIENT TEMPERATURE (°C) 2 1 0 OUTPUT VOLTAGE (V) COMMON MODE REJECTION RATIO (dB) 100 +7.5V 100kΩ 100 Ω 60 - 40 100 Ω eI eO + 100kΩ 20 VCC = +5V VCC = +15V VCC = +30V 1 - 0.1 IO 10K 1K Tamb = +25°C 0,001 1M 100K OUTPUT VOLTAGE (mV) VCC VI VCC/2 VO + 80 VCC = 30V & -55°C Tamb +125°C 60 40 20 1 VCC = +10 to + 15V & -55°C Tamb +125°C 10 100 1k 10k 100k eO el - 50pF 400 Input 350 Output 300 Tamb = +25°C VCC = 30 V 1M 250 10M 0 1 2 FREQUENCY (Hz) 100k Ω 15 +15V VO VI +7V + 2k Ω 10 5 0 1k 10k 4 5 6 7 8 OUTPUT CHARACTERISTICS 100k 8 V CC 7 6 TO VCC+ (V) OUTPUT VOLTAGE REFERENCED 20 - 3 TIME (µs) LARGE SIGNAL FREQUENCY RESPONSE 1k Ω 100 + 450 0 1.0 10 500 10M Ω - 100 0,1 VOLTAGE FOLLOWER PULSSE RESPONSE (SMALL SIGNAL) 140 0.1µF 0,01 OUTPUT SINK CURRENT (mA) OPEN LOOP FREQUENCY RESPONSE (NOTE 3) 120 VO + FREQUENCY (Hz) OUTPUT SWING (Vpp) v cc v cc /2 0.01 100 40 +7.5V 0 V CC /2 5 + VO IO - 4 3 2 Independent of V CC T amb = +25°C 1 0,001 0,01 1M 0,1 1 10 100 OUTPUT SOURCE CURRENT (mA) FREQUENCY (Hz) www.slkormicro.com 30 OUTPUT CHARACTERISTICS 10 120 80 20 TIME (µ s) COMMON MODE REJECTION RATIO VOLTAGE GAIN (dB) 10 5 LM2902 POWER SUPPLY & COMMON MODE REJECTION RATIO (dB) 120 POWER SUPPLY & COMMON MODE REJECTION RATIO (dB) 75 50 25 Tamb= +25°C 0 10 20 30 POSITIVE SUPPLY VOLTAGE (V) Avd (dB) LARGE SIGNAL VOLTAGE GAIN VOLTAGE GAIN (dB) R L = 20k Ω 120 R L = 2kΩ 40 0 10 20 30 POSITIVE SUPPLY VOLTAGE (V) www.slkormicro.com SVR CMR 70 -55-35-15 5 25 45 65 85 105 125 AMBIENT TEMPERATURE (°C) 160 80 115 110 105 100 95 90 85 80 75 6 LARGE SIGNAL VOLTAGE GAIN 120 115 110 105 -55 INPUT CURRENT (nA) 100 100 -55-35-15 5 25 45 65 85 105 125 AMBIENT TEMPERATURE (°C) LM2902 TYPICAL SINGLE - SUPPLY APPLICATIONS AC COUPLED INVERTING AMPLIFIER Rf 100k Ω Rf R1 (as shown AV = -10) R1 10kΩ Co 1/4 LM2902 1/4 LM2902 2VPP e o0 RB 6.2kΩ R3 100kΩ eI ~ R2 VCC 100kΩ AV = 1 + R2 R1 (As shown AV = 101) 10k Ω eO +5V RL 10k Ω R2 1M Ω R1 10kΩ e O (V) CI A V= - NON-INVERTING DC GAIN C1 10µF 0 e I (mV) AC COUPLED NON-INVERTING AMPLIFIER R1 100kΩ R2 1MΩ A V= 1 + R2 R1 (as shown A V = 11) C1 0.1µF Co 1/4 LM2902 CI RL 10kΩ RB 6.2kΩ eI ~ R3 1MΩ 2VPP 0 eo R4 100kΩ VCC C2 10µF R5 100kΩ ACTIVER BADPASS FILTER DC SUMMING AMPLIFIER e1 R1 100kΩ 100kΩ C1 330pF 100kΩ e2 1/4 LM2902 1/4 LM2902 eO R5 470kΩ R4 10MΩ e1 1/4 LM2902 100kΩ C2 330pF e3 R3 10kΩ 100kΩ eO 100kΩ e4 R6 470kΩ 1/4 LM2902 R7 100kΩ V CC 100kΩ R8 100kΩ eo = e1 + e2 - e3 - e4 where (e1 + e2) ≥ (e3 + e4) to keep eo ≥ 0V www.slkormicro.com Fo = 1kHz Q = 50 Av = 100 (40dB) 7 C3 10µF LM2902 HIGH INPUT Z, DC DIFFERENTIAL AMPLIFIER HIGH INPUT Z ADJUSTABLE GAIN DC INSTRUMENTATION AMPLIFIER R1 100k Ω R3 100k Ω 1/4 LM2902 e1 Gain adjust R2 2k Ω R1 100kΩ 1/4 LM2902 e 1/4 LM2902 R4 100k Ω R2 100kΩ R4 100k Ω R3 100kΩ 1/4 LM2902 +V1 +V2 R5 100k Ω eo = [ 1 + R4 ] (e2 - e1) R3 As shown eo = (e2 - e1) R6 100k Ω 1/4 LM2902 R7 100k Ω e2 If R1 = R5 and R3 = R4 = R6 = R7 eo = [ 1 + 2R1 ] (e2 - e1) R2 As shown eo = 101 (e2 - e1) USING SYMMETRICAL AMPLIFIERS TO REDUCE INPUT CURRENT (GENERAL CONCEPT) LOW DRIFT PEAK DETECTOR 1/4 IB I 1/4 I B LM2902 1/4 LM2902 eI C * 1µF ZI 2I B R 1MΩ eo IB 3R 3MΩ eo I B LM2902 2N 929 0.001µ F 0.001µF IB IB IB 3MΩ 1/4 LM2902 Input current compensation IB 1.5MΩ * Polycarbonate or polyethylene www.slkormicro.com IB Zo 2I B 2N 929 eI I 8 1/4 LM2902 Aux. amplifier for input current compensation Vo LM2902 SOP14 Q A C1 C B D A1 a 0.25 b Dimensions In Millimeters Symbol： A Min： Max： 4.520 Symbol： Min： Max： 4.620 D 0.400 0.950 0° 8° A1 0.100 0.250 Q B 8.500 9.000 a 0.420 TYP b 1.270 TYP C 5.800 6.250 C1 3.800 4.000 DIP14         Dimensions In Millimeters Symbol：
www.slkormicro.com 9 Min： Max： Symbol： Min： Max： A 6.100 6.680 L 0.500 0.800 B 18.940 19.560 L1 3.000 3.600 D 8.200 9.200 a 1.524 TYP D1 7.42 7.820 c 0.457 TYP E 3.100 3.550 d 2.540 TYP LM2902 A A2 TSSOP14 D E1 E A1 c e Dimensions In Millimeters θ L1 www.slkormicro.com L Symbol： L2 10 Min： Max： Symbol： Min： Max： A 0.950 1.200 E1 4.300 4.500 A1 0.050 A2 0.900 0.150 L 0.450 0.750 1.050 θ 0° 8° B 0.200 0.280 e 0.650 BSC C 0.100 0.190 L1 1.000 REF D 4.860 5.060 L2 1.250 BSC E 6.200 6.600