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LM2902 LOW POWER QUAD OPERATIONAL AMPLIFIER s WIDE GAIN BANDWIDTH: 1.3MHz s INPUT COMMON-MODE VOLTAGE RANGE s LARGE VOLTAGE GAIN: 100dB s VERY LOW SUPPLY CURRENT/AMPLI: s LOW INPUT BIAS CURRENT: 20nA s LOW INPUT OFFSET CURRENT:2nA s WIDE POWER SUPPLY RANGE: SINGLE SUPPLY: +3V TO +30V DUAL SUPPLIES: 1.5V TO 15V 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. ORDER CODE Part Number LM2902 Temperature Range -40C, +125C Package N * D * P * P TSSOP14 (Thin Shrink Small Outline Package) INCLUDES GROUND 375A N DIP14 (Plastic Package) D SO14 (Plastic Micropackage) 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) PIN CONNECTIONS (top view) Output 1 1 Inverting Input 1 2 Non-inverting Input 1 3 VCC + 4 Non-inverting Input 2 Inverting Input 2 5 6 + + + + 14 Output 4 13 Inverting Input 4 12 Non-inverting Input 4 11 VCC 10 Non-inverting Input 3 9 8 Inverting Input 3 Output 3 Output 2 7 November 2001 1/11 LM2902 SCHEMATIC DIAGRAM (1/4 LM2902) V CC 6A 4A CC 100A Q5 Q6 Inverting input Q2 Q1 Q3 Q4 Q11 Q7 R SC Non-inverting input Output Q13 Q10 Q8 Q9 Q12 50m A GND ABSOLUTE MAXIMUM RATINGS Symbol VCC Vid VI Supply Voltage Differential Input Voltage Input Voltage Output Short-circuit to Ground 1) Power Dissipation N Suffix D Suffix Input Current 2) Operating Free-Air Temperature Range Storage Temperature Range Parameter Value 16 to 32 +32 -0.3 to +32 Infinite 500 400 50 -40 to +125 -65 to +150 mW mA C C Unit V V V ptot Iin Toper Tstg 1. 2. 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. 2/11 LM2902 ELECTRICAL CHARACTERISTICS VCC+ = 5V, V cc- = Ground, VO = 1.4V, Tamb = 25C (unless otherwise specified) Symbol Vio Parameter Input Offset Voltage 1) Tamb = +25C Tmin Tamb Tmax. Input Offset Current Tamb = +25C Tmin Tamb Tmax. Input Bias Current 2) Tamb = +25C Tmin Tamb Tmax. Large Signal Voltage Gain VCC+ = +15V,RL=2k, Vo = 1.4V to 11.4V Tamb = +25C Tmin Tamb Tmax. Supply Voltage Rejection Ratio (RS 10k) Tamb = +25C Tmin Tamb Tmax. Supply Current, all Amp, no load VCC = +5V Tamb = +25C VCC = +30V Tmin Tamb Tmax. VCC = +5V VCC = +30V Input Common Mode Voltage Range (Vcc= +30V)3) Tamb = +25C Tmin Tamb Tmax. Common-mode Rejection Ratio (RS 10k) Tamb = +25C Tmin Tamb Tmax. Output Short-circuit Current (Vid = +1V) VCC = +15V, Vo = +2V Output Sink Current (Vid = -1V) VCC = +15V, Vo = +2V VCC = +15V, Vo = +0.2V High Level Output Voltage (Vcc + 30V) Tamb = +25C RL = 2k Tmin Tamb Tmax. Tamb = +25C RL = 10k Tmin Tamb Tmax. (Vcc + 5V), RL = 2k Tmin Tamb Tmax. Tamb = +25C Low Level Output Voltage (RL = 10k) Tamb = +25C Tmin Tamb Tmax Slew Rate Vcc = 15V, Vi = 0.5 to 3V, RL = 2k, CL = 100pF, unity gain 0 0 70 60 20 10 12 26 26 27 27 3.5 3 80 Min. Typ. 2 Max. 7 9 30 40 150 300 Unit mV Iio 2 nA Iib 20 nA Avd 50 25 65 65 100 V/mV SVR 110 dB Icc 0.7 1.5 0.8 1.5 1.2 3 1.2 3 VCC -1.5 VCC -2 mA Vicm V CMR dB IO Isink 40 20 50 27 28 70 mA mA A VOH V VOL 5 20 20 mV SR V/s 0.4 3/11 LM2902 Symbol GBP THD Parameter Gain Bandwidth Product Vcc = 30V,Vin = 10mV, RL = 2k, CL = 100pF Total Harmonic Distortion f = 1kHz, AV = 20dB, RL = 2k, Vo = 2Vpp, CL = 100pF, Vcc = 30V Equivalent Input Noise Voltage f = 1kHz, RS = 100, Vcc = 30V Input Offset Voltage Drift Input Offset Current Drift Channel Separation 4) 1kHz f 20kHz Min. Typ. 1.3 Max. Unit MHz % 0.015 40 7 10 120 30 200 nV ----------Hz V/C pA/C dB en DVio DIio VO1/VO2 1. 2. 3. 4. VO = 1.4V, RS = 0, 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 BIAS CURRENT versus AMBIENT TEMPERATURE IB (nA) INPUT VOLTAGE RANGE 15 24 21 18 15 12 9 6 3 0 -55-35-15 5 25 45 65 85 105 125 AMBIENT TEMPERATURE (C) CURRENT LIMITING (Note 1) 90 INPUT VOLTAGE (V) 10 Negative 5 Positive 0 5 10 15 POWER SUPPLY VOLTAGE (V) SUPPLY CURRENT 4 VCC OUTPUT CURRENT (mA) SUPPLY CURRENT (mA) 80 70 60 50 40 30 20 10 0 -55 -35 -15 5 - IO 3 mA - ID + 2 + 1 Tamb = 0C to +125C Tamb = -55C 25 45 65 85 105 125 0 10 20 30 TEMPERATURE (C) POSITIVE SUPPLY VOLTAGE (V) 4/11 LM2902 GBP (mhz) GAIN BANDWIDTH PRODUCT OUTPUT VOLTAGE (V) VOLAGE FOLLOWER PULSE RESPONSE 4 3 2 1 0 3 RL 2 k VCC = +15V GAIN BANDWIDTH PRODUCT (MHz) 1.35 INPUT VOLTAGE (V) 1.30 1.25 1.2 1.15 1.1 1.05 1 -95 -9 -55-35-15 5 25 45 65 85 105 125 AMBIENT TEMPERATURE (C) COMMON MODE REJECTION RATIO 2 1 0 10 20 30 40 TIME ( s) OUTPUT CHARACTERISTICS 10 VCC = +5V VCC = +15V VCC = +30V COMMON MODE REJECTION RATIO (dB) 120 100 80 100 eI 100 100k eO + +7.5V +7.5V 100k OUTPUT VOLTAGE (V) 1 v cc IO + VO 60 40 v cc /2 0.1 20 0 100 1K 0.01 10K 100K 1M 0,001 0,01 0,1 Tamb = +25C 1 10 100 FREQUENCY (Hz) OUTPUT SINK CURRENT (mA) VOLTAGE FOLLOWER PULSSE RESPONSE (SMALL SIGNAL) 500 OPEN LOOP FREQUENCY RESPONSE (NOTE 3) 140 0.1F VI VCC/2 + 10M OUTPUT VOLTAGE (mV) 120 VOLTAGE GAIN (dB) 100 80 60 40 20 0 1.0 10 100 VCC VO 450 el + eO 50pF VCC = 30V & -55C Tamb +125C 400 Input 350 Output 300 Tamb = +25C VCC = 30 V 0 1 2 3 4 5 6 7 8 VCC = +10 to + 15V & -55C Tamb +125C 1k 10k 100k 1M 10M 250 FREQUENCY (Hz) TIME (s) LARGE SIGNAL FREQUENCY RESPONSE 20 100k 1k +15V VO +7V + 2k OUTPUT VOLTAGE REFERENCED OUTPUT CHARACTERISTICS 8 7 6 V CC /2 + IO VO V CC OUTPUT SWING (Vpp) 15 VI TO VCC+ (V) 5 4 3 2 1 0,001 0,01 - 10 Independent of V CC T amb = +25C 5 0 1k 10k 100k 1M 0,1 1 10 100 FREQUENCY (Hz) OUTPUT SOURCE CURRENT (mA) 5/11 LM2902 TYPICAL SINGLE - SUPPLY APPLICATIONS AC COUPLED INVERTING AMPLIFIER 100 INPUT CURRENT (nA) 75 Rf 100k 50 CI R1 10k 1/4 LM2902 R1 (as shown AV = -10) Co 0 eo RL 10k 2VPP A V= - Rf 25 Tamb= +25C eI ~ R2 VCC 100k 0 10 20 30 POSITIVE SUPPLY VOLTAGE (V) 160 R L = 20k VOLTAGE GAIN (dB) RB 6.2k R3 100k C1 10F 120 80 R L = 2k AC COUPLED NON-INVERTING AMPLIFIER 40 R1 100k R2 1M 0 10 20 30 C1 0.1F 1/4 LM2902 A V= 1 + R2 R1 (as shown A V = 11) Co 0 eo RL 10k 2V PP POSITIVE SUPPLY VOLTAGE (V) CI POWER SUPPLY & COMMON MODE REJECTION RATIO (dB) POWER SUPPLY & COMMON MODE REJECTION RATIO (dB) 120 RB 6.2k eI ~ R3 1M 115 110 105 100 95 90 85 80 75 70 SVR R4 100k V CC C2 10F R5 100k CMR NON-INVERTING DC GAIN AMBIENT TEMPERATURE (C) -55-35-15 5 25 45 65 85 105 125 Avd (dB) LARGE SIGNAL VOLTAGE GAIN LARGE SIGNAL VOLTAGE GAIN 120 10k 1/4 LM2902 eO A V = 1 + R2 R1 (As shown A V = 101) +5V 115 110 -55 100 -55-35-15 5 25 45 65 85 105 125 AMBIENT TEMPERATURE (C) 0 e I (mV) 6/11 e 105 R1 10k R2 1M O (V) LM2902 DC SUMMING AMPLIFIER e1 100k ACTIVER BADPASS FILTER R1 100k C1 330pF 100k e2 e3 100k 1/4 LM2902 eO e1 1/4 LM2902 R4 10M C2 330pF R5 470k 1/4 LM2902 100k 100k R3 10k 1/4 LM2902 R6 470k eO R7 100k V CC R8 100k C3 10F e4 100k eo = e1 + e2 - e3 - e4 where (e1 + e2) (e3 + e4) to keep eo 0V Fo = 1kHz Q = 50 Av = 100 (40dB) HIGH INPUT Z ADJUSTABLE GAIN DC INSTRUMENTATION AMPLIFIER HIGH INPUT Z, DC DIFFERENTIAL AMPLIFIER R1 100k R2 100k R1 100k R3 100k 1/4 LM2902 e1 1/4 LM2902 R3 100k R4 100k R4 100k R2 2k Gain adjust 1/4 LM2902 eO +V1 +V2 eo = [ 1 + 1/4 LM2902 Vo R5 100k R4 ] (e2 - e1) R3 As shown eo = (e2 - e1) 1/4 LM2902 e2 If R1 = R5 and R3 = R4 = R6 = R7 eo = [ 1 + 2R1 ] (e2 - e1) R2 As shown eo = 101 (e2 - e1) R6 100k R7 100k LOW DRIFT PEAK DETECTOR USING SYMMETRICAL AMPLIFIERS TO REDUCE INPUT CURRENT (GENERAL CONCEPT) IB 1/4 I B LM2902 1/4 I eo Zo I I B LM2902 2N 929 0.001 F eo eI 1/4 LM2902 IB eI ZI 1F C * 2I B 2N 929 2I B R 1M 0.001F IB 3R 3M IB 1/4 LM2902 IB IB 3M IB 1/4 LM2902 Input current compensation Aux. amplifier for input current compensation * Polycarbonate or polyethylene 1.5M 7/11 LM2902 MACROMODELS ** Standard Linear Ics Macromodels, 1993. ** CONNECTIONS : * 1 INVERTING INPUT * 2 NON-INVERTING INPUT * 3 OUTPUT * 4 POSITIVE POWER SUPPLY * 5 NEGATIVE POWER SUPPLY .SUBCKT LM2902 1 3 2 4 5 (analog) ******************************************************** .MODEL MDTH D IS=1E-8 KF=3.104131E-15 CJO=10F * INPUT STAGE CIP 2 5 1.000000E-12 CIN 1 5 1.000000E-12 EIP 10 5 2 5 1 EIN 16 5 1 5 1 RIP 10 11 2.600000E+01 RIN 15 16 2.600000E+01 RIS 11 15 2.003862E+02 DIP 11 12 MDTH 400E-12 DIN 15 14 MDTH 400E-12 VOFP 12 13 DC 0 VOFN 13 14 DC 0 IPOL 13 5 1.000000E-05 CPS 11 15 3.783376E-09 DINN 17 13 MDTH 400E-12 VIN 17 5 0.000000e+00 DINR 15 18 MDTH 400E-12 VIP 4 18 2.000000E+00 FCP 4 5 VOFP 3.400000E+01 FCN 5 4 VOFN 3.400000E+01 FIBP 2 5 VOFN 2.000000E-03 FIBN 5 1 VOFP 2.000000E-03 * AMPLIFYING STAGE FIP 5 19 VOFP 3.600000E+02 FIN 5 19 VOFN 3.600000E+02 RG1 19 5 3.652997E+06 RG2 19 4 3.652997E+06 CC 19 5 6.000000E-09 DOPM 19 22 MDTH 400E-12 DONM 21 19 MDTH 400E-12 HOPM 22 28 VOUT 7.500000E+03 VIPM 28 4 1.500000E+02 HONM 21 27 VOUT 7.500000E+03 VINM 5 27 1.500000E+02 EOUT 26 23 19 5 1 VOUT 23 5 0 ROUT 26 3 20 COUT 3 5 1.000000E-12 DOP 19 25 MDTH 400E-12 VOP 4 25 2.242230E+00 DON 24 19 MDTH 400E-12 VON 24 5 7.922301E-01 .ENDS ELECTRICAL CHARACTERISTICS VCC+ = 5V, V CC- = 0V, Tamb = 25C (unless otherwise specified) Symbol Vio Avd ICC Vicm VOH VOL Ios GBP SR 8/11 RL = 2k (VCC+ = 15V) RL = 2k VO = +2V, VCC = +15V RL = 2k, CL = 100pF RL = 2k, CL = 100pF RL = 2k No load, per operator Conditions Value 0 100 350 -15 to +13.5 +13.5 5 +40 1.3 0.4 Unit mV V/mV A V V mV mA MHz V/s LM2902 PACKAGE MECHANICAL DATA 14 PINS - PLASTIC DIP Millimeters Dimensions Min. a1 B b b1 D E e e3 F i L Z 0.51 1.39 0.5 0.25 20 8.5 2.54 15.24 7.1 5.1 3.3 1.27 2.54 0.050 Typ. Max. 1.65 Min. 0.020 0.055 Inches Typ. Max. 0.065 0.020 0.010 0.787 0.335 0.100 0.600 0.280 0.201 0.130 0.100 9/11 LM2902 PACKAGE MECHANICAL DATA 14 PINS - PLASTIC MICROPACKAGE (SO) L C G c1 a2 b e3 D M e A s E 14 1 8 7 F Millimeters Dimensions Min. A a1 a2 b b1 C c1 D (1) E e e3 F (1) G L M S 0.1 0.35 0.19 0.5 45 (typ.) 8.55 5.8 1.27 7.62 3.8 4.6 0.5 4.0 5.3 1.27 0.68 8 (max.) 0.150 0.181 0.020 8.75 6.2 0.336 0.228 Typ. Max. 1.75 0.2 1.6 0.46 0.25 Min. 0.004 0.014 0.007 a1 Inches Typ. Max. 0.069 0.008 0.063 0.018 0.010 0.020 0.344 0.244 0.050 0.300 0.157 0.208 0.050 0.027 Note : (1) D and F do not include mold flash or protrusions - Mold flash or protrusions shall not exceed 0.15mm (.066 inc) ONLY FOR DATA BOOK. 10/11 b1 LM2902 PACKAGE MECHANICAL DATA 14 PINS -THIN SHRINK SMALL OUTLINE PACKAGE (TSSOP) c k 0,25 mm .010 inch GAGE PLANE L E1 SEATING PLANE C A A2 A1 b e E 8 7 D aaa C 14 1 PIN 1 IDENTIFICATION Millimeters Dimensions Min. A A1 A2 b c D E E1 e k L L1 aaa 0.05 0.80 0.19 0.09 4.90 4.30 0 0.450 Typ. Max. 1.20 0.15 1.05 0.30 0.20 5.10 4.50 8 0.750 0.100 Min. 0.01 0.031 0.007 0.003 0.192 0.169 0 0.018 L1 Inches Typ. Max. 0.05 0.006 0.041 0.15 0.012 0.20 0.177 8 0.030 0.004 1.00 0.039 5.00 6.40 4.40 0.65 0.600 1.00 0.196 0.252 0.173 0.025 0.024 0.039 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. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. (c) The ST logo is a registered trademark of STMicroelectronics (c) 2001 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States (c) http://www.st.com 11/11 |
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