LM2904W LOW POWER DUAL OPERATIONAL AMPLIFIERS ■ INTERNALLY FREQUENCY COMPENSATED ■ LARGE DC VOLTAGE GAIN : 100dB ■ WIDE BANDWIDTH (unity gain) : 1.1MHz (temperature compensated) ■ VERY LOW SUPPLY CURRENT/OP (500µA) ■ LOW INPUT BIAS CURRENT : 20nA (temperature compensated) ■ LOW INPUT OFFSET CURRENT : 2nA ■ INPUT COMMON-MODE VOLTAGE RANGE N DIP8 (Plastic Package) INCLUDES GROUND ■ DIFFERENTIAL INPUT VOLTAGE RANGE EQUAL TO THE POWER SUPPLY VOLTAGE ■ LARGE OUTPUT VOLTAGE SWING 0V TO (VCC - 1.5V) ■ ESD INTERNAL PROTECTION : 2kV DESCRIPTION This circuit consists of two independent, high gain, internally frequency compensated which were designed specifically for automotive and industrial control system. It operates from a single power supply over a wide range of voltages. The low power supply drain is independent of the magnitude of the power supply voltage. Application areas include transducer amplifiers, dc gain blocks and all the conventional op-amp circuits which now can be more easily implemented in single power supply ssystems. For example, these circuits can be directly supplied with off the standard +5V which is used in logic systems and will easily provide the required interface electronics without requiring any additional power supply. In the linear mode the input common-mode voltage range includes ground and the output voltage can also swing to groung, even though operated from only a single power supply voltage. ORDER CODE Part Number LM2904W P TSSOP8 (Thin Shrink Small Outline Package) PIN CONNECTIONS (top view) N D P -40°C, +125°C • • • N = Dual in Line Package (DIP) D = Small Outline Package (SO) - also available in Tape & Reel (DT) P = Thin Shrink Small Outline Package (TSSOP) - only available in Tape & Reel (PT) 8 1 2 - 3 + Package Temperature Range September 2003 D SO8 (Plastic Micropackage) 4 7 - 6 + 5 1/10 LM2904W SCHEMATIC DIAGRAM (1/2 LM2904W) ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit +32 V -0.3v to Vcc + 0.3 V VCC Supply Voltage Vid Differential Input Voltage VI Input Voltage -0.3v to Vcc + 0.3 V 2 kV Infinite s 500 mW ESD Human Body Model 3) Output Short-circuit Duration1) ptot Iin Power Dissipation 2) 50 mA Toper Operating Free-Air Temperature Range -40 to +125 °C Tstg Storage Temperature Range -65 to +150 °C Input Current 1. Short-circuits from the output to Vcc can cause excessive heating if Vcc + > 15V. The maximum output current is approximately 40mA, independent of the magnitude of Vcc . Destructive dissipation can result from simultaneous short-circuits on all amplifiers. 2. 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 Human body model, 100pF discharged through a 1.5KΩ resistor, into pin to pin of device. 3) OPERATING CONDITIONS Symbol VCC + Vicm 2/10 Parameter Supply Voltage Common Mode Input Voltage Range Value Unit 3 to 30 V VCC+ - 1.5 V LM2904W 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 Iib Input Bias Current 2) Tamb = 25°C Tmin ≤ Tamb ≤ Tmax. 20 150 200 nA Avd Large Signal Voltage Gain VCC+ = +15V,R L=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 65 100 Icc Supply Current, all Amp, no load VCC = +5V Tamb = 25°C Tmin ≤ Tamb ≤ Tmax. VCC = +30V 0.7 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 85 Isource Output Short-circuit Current VCC = +15V, Vo = +2V, Vid = +1V 20 40 Output Sink Current VO = 2V VO = +0.2V 10 12 20 50 Isink VCC = +5V VCC = +15V VOPP Output Voltage Swing (RL = 2kΩ Tamb = 25°C Tmin ≤ Tamb ≤ Tmax 0 0 VOH High Level Output Voltage (Vcc + 30V) RL = 2kΩ Tamb = +25°C Tmin ≤ Tamb ≤ Tmax. Tamb = +25°C RL = 10kΩ Tmin ≤ Tamb ≤ Tmax. 26 26 27 27 VOL SR GBP Low Level Output Voltage (RL = 10kΩ) Tamb = +25°C Tmin ≤ Tamb ≤ Tmax Slew Rate Vcc = 15V, Vi = 0.5 to 3V, RL = 2kΩ, CL = 100pF, unity gain Gain Bandwidth Product f = 100kHz Vcc = 30V,Vin = 10mV, RL = 2kΩ, CL = 100pF V/mV dB 1.2 2 mA VCC+ -1.5 VCC+ -2 V dB 60 mA mA VCC+ -1.5 VCC+ -2 27 V V 28 5 20 20 mV V/µs 0.3 0.6 0.7 1.1 MHz 3/10 LM2904W Symbol Parameter Min. Typ. Total Harmonic Distortion f = 1kHz, AV = 20dB, RL = 2kΩ, Vo = 2Vpp, CL = 100pF, Vcc = 30V THD Max. Unit % 0.02 DVio Input Offset Voltage Drift 7 30 µV/°C DIio Input Offset Current Drift 10 300 pA/°C 4) Channel Separation 1kHz ≤ f ≤ 20kHz VO1/VO2 1. 2. 3. 4. dB 120 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. VOLAGE FOLLOWER PULSE RESPONSE OPEN LOOP FREQUENCY RESPONSE (NOTE 3) 4 140 120 VCC - 100 VI VCC/2 VO + 80 VCC = 30V & -55°C Tamb +125°C 60 RL 2 kΩ VCC = +15V 3 2 1 0 40 3 20 VCC = +10 to + 15V & -55°C Tamb +125°C 0 1.0 10 100 1k 10k 100k 1M 10M FREQUENCY (Hz) INPUT VOLTAGE (V) VOLTAGE GAIN (dB) OUTPUT VOLTAGE (V) 10MΩ 0.1µF 2 1 0 + 2k Ω 10 5 0 1k 1 v cc v cc /2 100k 1M - 0.1 IO VO + Tamb = +25°C 0.01 10k FREQUENCY (Hz) 4/10 OUTPUT VOLTAGE (V) OUTPUT SWING (Vpp) VO +7V VCC = +5V VCC = +15V VCC = +30V +15V VI 40 10 100k Ω 15 30 OUTPUT CHARACTERISTICS 20 - 20 TIME (µs) LARGE SIGNAL FREQUENCY RESPONSE 1k Ω 10 0,001 0,01 0,1 1 10 100 OUTPUT SINK CURRENT (µ A) LM2904W INPUT VOLTAGE RANGE VOLTAGE FOLLOWER PULSSE RESPONSE (SMALL SIGNAL) 15 INPUT VOLTAGE (V) OUTPUT VOLTAGE (mV) 500 + 450 eO el - 50pF 400 Input 350 Output 300 10 Positive 5 Tamb = +25°C VCC = 30 V 250 0 1 2 3 4 5 6 7 8 0 TIME (m s) 5 SUPPLY CURRENT V CC VCC 5 SUPPLY CURRENT (mA) + V CC /2 VO IO - 4 Independent of V CC 3 T amb = +25°C 2 ID mA 3 - 2 + Tamb = 0°C to +125°C 1 Tamb = -55°C 1 0,001 0,01 0,1 1 10 100 0 OUTPUT SOURCE CURRENT (mA) 10 20 INPUT CURRENT (Note 1) 80 160 R L = 20kΩ VOLTAGE GAIN (dB) VI = 0 V 70 VCC = +30 V 60 50 VCC = +15 V 40 30 VCC = +5 V 20 30 POSITIVE SUPPLY VOLTAGE (V) 90 INPUT CURRENT (mA) 15 4 7 6 10 POWER SUPPLY VOLTAGE (±V) OUTPUT CHARACTERISTICS 8 TO VCC+ (V) OUTPUT VOLTAGE REFERENCED Négative 120 R L = 2k Ω 80 40 10 0 -55 -35 -15 5 25 45 65 85 105 0 125 CURRENT LIMITING (Note 1) INPUT CURRENT (nA) OUTPUT CURRENT (mA) - IO 70 60 20 30 40 100 90 80 10 POSITIVE SUPPLY VOLTAGE (V) TEMPERATURE (°C) + 50 40 30 20 75 50 25 Tamb= +25°C 10 0 -55 -35 -15 5 25 45 65 85 105 TEMPERATURE (°C) 125 0 10 20 30 POSITIVE SUPPLY VOLTAGE (V) 5/10 LM2904W TYPICAL SINGLE - SUPPLY APPLICATIONS AC COUPLED INVERTING AMPLIFIER 160 R L = 20k Ω VOLTAGE GAIN (dB) 120 Rf 100kΩ R L = 2k Ω 80 Rf AV = R1 (as shown AV = -10) R1 10kΩ CI 40 Co 1/2 LM2904 0 10 20 30 eI ~ R2 VCC 100kΩ 2VPP 0 eo RB 6.2kΩ R3 100kΩ RL 10kΩ C1 10µF 1.5 1.35 1.2 1.05 0.9 0.75 0.6 VCC = 15V AC COUPLED NON-INVERTING AMPLIFIER 0.45 R1 100kΩ 0.3 0.15 0 -55-35-15 5 25 45 65 85 105 125 POWER SUPPLY REJECTION RATIO (dB) COMMON MODE REJECTION RATIO (dB) A V= 1 + R2 R1 (as shown A V = 11) C1 0.1µF TEMPERATURE (°C) 6/10 R2 1MΩ CI Co 1/2 LM2904 RB 6.2kΩ 115 110 SVR 105 100 95 90 85 80 75 70 65 60-55-35-15 5 25 45 65 85 105 125 TEMPERATURE (°C) R3 1MΩ eI ~ RL 10k Ω R4 100kΩ VCC C2 10µF R5 100kΩ NON-INVERTING DC GAIN A V = 1 + R2 R1 (As shown A V = 101) 10kΩ 115 110 105 100 95 90 85 80 75 70 65 60-55-35-15 5 25 45 65 85 105 125 TEMPERATURE (°C) 2VPP 0 eo 1/2 LM2904 R2 1M Ω R1 10kΩ eO +5V e O (V) GAIN BANDWIDTH PRODUCT (MHz) POSITIVE SUPPLY VOLTAGE (V) 0 e I (mV) LM2904W DC SUMMING AMPLIFIER e1 HIGH INPUT Z ADJUSTABLE GAIN DC INSTRUMENTATION AMPLIFIER 100kΩ R1 100k Ω 100kΩ e2 100kΩ e3 100kΩ 1/2 LM2904 eO R3 100k Ω 1/2 LM2904 e1 R4 100k Ω eO 1/2 LM2904 Gain adjust R2 2k Ω R5 100k Ω 100kΩ e4 R6 100k Ω 1/2 LM2904 100kΩ R7 100k Ω e2 eo = e1 + e2 - e3 - e4 where (e1 + e2) ≥ (e3 + e4) to keep eo ≥ 0V If R1 = R5 and R3 = R4 = R6 = R7 eo = [ 1 + 2R1 ] (e2 - e1) R2 As shown eo = 101 (e2 - e1) HIGH INPUT Z, DC DIFFERENTIAL AMPLIFIER LOW DRIFT PEAK DETECTOR R4 100kΩ R2 100kΩ R1 100kΩ IB 1/2 1/2 LM2904 R3 100kΩ eI 1/2 LM2904 +V1 +V2 ZI 2IB IB I 2IB 1/2 LM2904 Input current compensation R1 100kΩ eo C1 330pF 1/2 LM2904 R2 100kΩ +V1 R5 470kΩ R4 10MΩ R3 100kΩ C2 330pF 1/2 LM2904 R6 470kΩ Vo 1/2 LM2904 R7 100kΩ VCC 2N 929 R8 100kΩ IB 3MΩ 1.5MΩ 3R 3M Ω ACTIVER BADPASS FILTER 0.001µ F IB 0.001µ F IB IB USING SYMMETRICAL AMPLIFIERS TO REDUCE INPUT CURRENT I Zo 2N 929 Vo If R1 = R5 and R3 = R4 = R6 = R7 eo = [ 1 + 2R1 ] (e2 - e1) R2 As shown eo = 101 (e2 - e1) eI C 1µ F R 1M Ω 1/2 I B LM2904 eo I B LM2904 1/2 LM2904 IB C3 10µF Fo = 1kHz Q = 50 Av = 100 (40dB) 1/2 LM2904 Input current compensation 7/10 LM2904W PACKAGE MECHANICAL DATA 8 PINS - PLASTIC DIP Millimeters Inches Dim. Min. A a1 B b b1 D E e e3 e4 F i L Z 8/10 Typ. Max. Min. 3.32 0.51 1.15 0.356 0.204 0.020 0.045 0.014 0.008 0.065 0.022 0.012 0.430 0.384 0.313 2.54 7.62 7.62 3.18 Max. 0.131 1.65 0.55 0.304 10.92 9.75 7.95 Typ. 0.100 0.300 0.300 6.6 5.08 3.81 1.52 0.125 0260 0.200 0.150 0.060 LM2904W PACKAGE MECHANICAL DATA 8 PINS - PLASTIC MICROPACKAGE (SO) Millimeters Inches Dim. Min. A a1 a2 a3 b b1 C c1 D E e e3 F L M S Typ. Max. 0.65 0.35 0.19 0.25 1.75 0.25 1.65 0.85 0.48 0.25 0.5 4.8 5.8 5.0 6.2 0.1 Min. Typ. Max. 0.026 0.014 0.007 0.010 0.069 0.010 0.065 0.033 0.019 0.010 0.020 0.189 0.228 0.197 0.244 0.004 45° (typ.) 1.27 3.81 3.8 0.4 0.050 0.150 4.0 1.27 0.6 0.150 0.016 0.157 0.050 0.024 8° (max.) 9/10 LM2904W PACKAGE MECHANICAL DATA 8 PINS -THIN SHRINK SMALL OUTLINE PACKAGE k c 0.25mm .010 inch GAGE PLANE L1 L L L1 C SEATING PLANE E1 A E A2 A1 5 4 4 5 D b e 8 1 8 1 PIN 1 IDENTIFICATION Millimeters Inches Dim. Min. A A1 A2 b c D E E1 e k l L L1 0.05 0.80 0.19 0.09 2.90 4.30 0° 0.50 0.45 Typ. 1.00 3.00 6.40 4.40 0.65 0.60 0.600 1.000 Max. Min. 1.20 0.15 1.05 0.30 0.20 3.10 0.01 0.031 0.007 0.003 0.114 4.50 0.169 8° 0.75 0.75 0° 0.09 0.018 Typ. 0.039 0.118 0.252 0.173 0.025 0.0236 0.024 0.039 Max. 0.05 0.006 0.041 0.15 0.012 0.122 0.177 8° 0.030 0.030 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. 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