LM2902 Low-power quad operational amplifier Datasheet - production data Features Wide gain bandwidth: 1.3 MHz Input common-mode voltage range includes negative rail Large voltage gain: 100 dB Very low supply current per amplifier: 375 A Low input bias current: 20 nA Low input offset current: 2 nA Wide power supply range: - Single supply: +3 V to +30 V - Dual supplies: 1.5 V to 15 V N DIP14 (Plastic package) D SO-14 (Plastic micropackage) Description This circuit consists of four independent, high gain operational amplifiers which employ internal frequency compensation and are specifically designed for automotive and industrial control systems. The device 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 from the power supply voltage magnitude. P TSSOP14 (Thin shrink small outline package) Q4 QFN16 3x3 (Plastic micropackage) January 2013 This is information on a product in full production. Doc ID 2469 Rev 7 1/21 www.st.com 21 Contents LM2902 Contents 1 Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Typical single-supply applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6 ECOPACK(R) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6.1 DIP14 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 6.2 SO-14 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 6.3 TSSOP14 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 6.4 QFN16 3 x 3 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . 17 7 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 2/21 Doc ID 2469 Rev 7 LM2902 Schematic diagram Figure 1. Schematic diagram (1/4 LM2902) Figure 2. Pin connections (top view) Output 1 1 14 Output 4 Inverting Input 1 2 - - 13 Inverting Input 4 Non-inverting Input 1 3 + + 12 Non-invertin g Input 4 11 V CC - VCC + 4 9 Inverting Input 3 Output 2 7 8 Output 3 ,1 9&& ,1 - 287 - 6 287 Inverting Input 2 Non-invertin g Input 3 ,1 10 + + 5 Non-inverting Input 2 ,1 9&& 1& ,1 ,1 ,1 ,1 287 1& 287 1& ,1 1 Schematic diagram 1. The exposed pads of the QFN16 3x3 can be connected to VCC- or left floating. Doc ID 2469 Rev 7 3/21 Absolute maximum ratings LM2902 2 Absolute maximum ratings Table 1. Absolute maximum ratings (AMR) Symbol VCC Parameter Supply voltage(1) Differential input voltage Vin Input voltage +32 Tstg V -0.3 to +32 Output short-circuit duration(3) Infinite s Maximum junction temperature 150 C Input current(4): Vin driven negative Iin Unit 16 to 33 (2) Vid Tj Value 5 in DC or 50 in AC (duty cycle = 10 %, T = 1 s) Input current(5): Vin driven positive above AMR value Storage temperature range mA 0.4 -65 to +150 C ambient(6) Rthja Thermal resistance junction to DIP14 SO-14 TSSOP14 QFN16 3x3 Rthjc Thermal resistance junction to case(6) DIP14 SO-14 TSSOP14 QFN16 3x3 33 31 32 14 HBM: human body model(7) 370 V 150 V 1500 V ESD MM: machine 80 105 100 45 model(8) CDM: charged device model(9) C/W 1. All voltage values, except differential voltage are with respect to network ground terminal. 2. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal. 3. Short-circuit from the output to VCC+ can cause excessive heating and eventual destruction. The maximum output current is approximately 20 mA, independent of the magnitude of VCC+. 4. 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 diode clamp. In addition to this diode action, there is NPN parasitic action on the IC chip. This transistor action can cause the output voltages of the Opamps to go to the VCC voltage level (or to ground for a large overdrive) for the time during which an input is driven negative. This is not destructive and normal output is restored for input voltages above -0.3 V. 5. The junction base/substrate of the input PNP transistor polarized in reverse must be protected by a resistor in series with the inputs to limit the input current to 400 A max (R = (Vin - 36 V)/400 A). 6. Rthja/c are typical values. 7. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a 1.5 k resistor between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating. 8. Machine model: a 200 pF capacitor is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5 ). This is done for all couples of connected pin combinations while the other pins are floating. 9. Charged device model: all pins and the package are charged together to the specified voltage and then discharged directly to the ground through only one pin. This is done for all pins. 4/21 Doc ID 2469 Rev 7 LM2902 Operating conditions 3 Operating conditions Table 2. Operating conditions Symbol Parameter VCC Supply voltage Vicm Common mode input voltage range Tmin Tamb Tmax Toper Operating free-air temperature range Value Unit 3 to 30 Doc ID 2469 Rev 7 VCC+ - 1.5 VCC+ -2 V -40 to +125 C 5/21 Electrical characteristics LM2902 4 Electrical characteristics Table 3. VCC+ = 5V, VCC- = Ground, Vo = 1.4V, Tamb = 25C (unless otherwise specified) Symbol Parameter Min. Typ. Max. Unit 2 7 9 mV 7 30 V/C 2 30 40 nA 10 200 pA/C 20 150 300 nA Input offset voltage(1) Vio Vio/T Tmin Tamb Tmax Input offset voltage drift Input offset current Iio DIio Tmin Tamb Tmax Input offset current drift Input bias Iib Avd current(2) Tmin Tamb Tmax Large signal voltage gain (VCC+ = +15 V, RL = 2 k, Vo = 1.4 V to 11.4 V) Tmin Tamb Tmax 50 25 100 65 65 110 V/mV Supply voltage rejection ratio (RS 10 k) SVR Tmin Tamb Tmax Icc Supply current, all amps, no load VCC+ = +5 V VCC+ = +30 V Tmin Tamb Tmax VCC+ = +5 V VCC+ = +30 V dB 0.7 1.5 1.2 3 0.8 1.5 1.2 3 mA Common-mode rejection ratio (RS 10 k) CMR Tmin Tamb Tmax IO Output short-circuit current (Vid = +1 V, VCC+ = +15 V, Vo = +2 V) 70 60 80 20 40 Isink Output sink current (Vid = -1 V) VCC+ = +15 V, Vo = +2 V VCC+ = +15 V, Vo = +0.2 V 10 12 20 50 26 26 27 27 3 3.5 27 VOH High level output voltage (VCC+ = +30 V) RL = 2 k Tmin Tamb Tmax RL = 10 k Tmin Tamb Tmax VCC+ = +5 V, RL = 2 k Tmin Tamb Tmax 6/21 Doc ID 2469 Rev 7 28 dB 70 mA mA A V LM2902 Table 3. Electrical characteristics VCC+ = 5V, VCC- = Ground, Vo = 1.4V, Tamb = 25C (unless otherwise specified) (continued) Symbol VOL Min. Typ. Max. Unit 5 20 20 mV Low level output voltage (RL = 10 k) Tmin Tamb Tmax SR Slew rate (VCC+ = 15 V, Vin = 0.5 to 3 V, RL = 2 k, CL = 100 pF, unity gain) 0.4 V/s GBP Gain bandwidth product (VCC+ = 30 V, Vin = 10 mV, RL = 2 k, CL = 100 pF) 1.3 MHz THD Total harmonic distortion (f = 1 kHz, AV = 20 dB, RL = 2 k, Vo = 2 Vpp, CL = 100 pF, VCC+ = 30 V) 0.015 % Equivalent input noise voltage (f = 1 kHz, RS = 100 , VCC+ = 30 V) 40 nV -----------Hz Channel separation(3) (1 kHz f 20 kHz) 120 dB en VO1/VO2 1. Parameter + + VO = 1.4 V, RS = 0 , 5 V < VCC < 30 V, 0 V < Vic < VCC - 1.5 V. 2. The direction of the input current is out of the IC. This current is essentially constant, independent of the state of the output, so there is no change in the loading charge on the input lines. 3. Due to the proximity of external components ensure stray capacitance does not cause coupling between these external parts. This typically can be detected as this type of capacitance increases at higher frequencies. Doc ID 2469 Rev 7 7/21 Electrical characteristics LM2902 Figure 3. Input bias current vs. Tamb Figure 4. Input voltage range Figure 5. Current limiting Figure 6. Supply current Figure 7. Gain bandwidth product Figure 8. Voltage follower pulse response OUTPUT VOLTAGE (V) 4 RL 2 k VCC = +15V 3 2 1 0 INPUT VOLTAGE (V) 3 8/21 Doc ID 2469 Rev 7 2 1 0 10 20 TIME ( s) 30 40 LM2902 Electrical characteristics COMMON MODE REJECTION RATIO (dB) Figure 9. Common mode rejection ratio Figure 10. Output characteristics (sink) 120 100 80 +7.5V 100k 100 60 - 40 100 eI eO + 100k 20 +7.5V 0 100 10K 1K 1M 100K FREQUENCY (Hz) Figure 11. Open-loop frequency response Figure 12. Voltage follower pulse response ( 140 VCC VOLTAGE GAIN (dB) - 100 VI VCC/2 OUTPUT VOLTAGE (mV) 10M 0.1F 120 VO + 80 VCC = 30V & -55C Tamb 60 +125C 40 20 ) 500 VCC = +10 to + 15V & -55C Tamb +125C 0 + 450 eO el - 50pF 400 Input 350 Output 300 Tamb = +25C VCC = 30 V 250 1.0 10 100 1k 10k 100k 1M 10M 0 1 2 3 4 5 6 7 8 TIME (s) FREQUENCY (Hz) Figure 13. Large signal frequency response Figure 14. Output characteristics (source) 20 100k OUTPUT SWING (Vpp) 1k - 15 +15V VO VI +7V + 2k 10 5 0 1k 10k 100k 1M FREQUENCY (Hz) Doc ID 2469 Rev 7 9/21 Electrical characteristics LM2902 Figure 15. Input current Figure 16. Voltage gain 160 VOLTAGE GAIN (dB) R L = 20k 120 R L = 2k 80 40 0 10 20 30 POSITIVE SUPPLY VOLTAGE (V) Figure 17. Power supply and common mode rejection ratio 10/21 Figure 18. Large signal voltage gain Doc ID 2469 Rev 7 LM2902 Typical single-supply applications 5 Typical single-supply applications Figure 19. AC coupled inverting amplifier Rf 100 k CI AV = - R1 100 k Rf R1 (as shown A V = -10) R1 10 k R2 VCC 100 k 2VPP 0 eo RB 6.2 k R3 100 k A V = 1 + R2 R1 (as shown AV = 11) Co 1/4 LM2902 CI RL 10 k R3 1 M eI ~ RL 10 k R4 100 k VCC C2 10 F Figure 21. Non-inverting DC gain eO 1/4 LM2902 e1 100 k +5 V 100 k e2 100 k e3 100 k eO (V) R2 1 M R5 100 k Figure 22. DC summing amplifier A V = 1 + R2 R1 (As shown A V = 101) 10 k 1/4 LM2902 eO 100 k e4 0 100 k eo = e1 + e2 - e3 - e4 where (e1 + e2) (e3 + e4) to keep eo 0 V e I (mV) Figure 23. Active bandpass filter Figure 24. High input Z adjustable gain DC instrumentation amplifier R1 100 k R1 100 k C1 330 pF 1/4 LM2902 e1 2 VPP 0 eo RB 6.2 k C1 10 F R1 10 k R2 1 M C1 0.1 F Co 1/4 LM2902 eI ~ Figure 20. AC coupled non-inverting amplifier R5 470 k R4 10 M e1 1/4 LM2902 R2 2 k C2 330 pF R3 10 k 1/4 LM2902 R6 470 k R7 100 k Fo = 1 kHz Q = 50 Av = 100 (40 dB) C3 10 F eO R5 100 k 1/4 LM2902 VCC R8 100 k R4 100 k 1/4 LM2902 Gain adjust eO 1/4 LM2902 R3 100 k R6 100 k R7 100 k e2 If R1 = R5 and R3 = R4 = R6 = R7 eo = [ 1 + 2R1 ] (e2 - e1) R2 As shown eo = 101 (e2 - e1) Doc ID 2469 Rev 7 11/21 Typical single-supply applications LM2902 Figure 25. High input Z, DC differential amplifier Figure 26. Low drift peak detector IB R4 100 k R2 100 k 1/4 R1 100 k 1/4 LM2902 eI R3 100 k +V1 +V2 C * 1 F ZI 1/4 LM2902 2I B R 1 M As shown eo = (e2 - e1) Figure 27. Using symmetrical amplifiers to reduce input current (general concept) 1/4 eI IB I eo I B LM2902 2N 929 0.001 F IB IB 3 M IB 1/4 LM2902 Aux. amplifier for input current compensation 1.5 M 12/21 0.001 F IB 3R 3 M IB * Polycarbonate or polyethylene I Zo 2I B 2N 929 Vo eo = [ 1 + R4 ] (e2 - e1) R3 Doc ID 2469 Rev 7 eo I B LM2902 1/4 LM2902 1/4 LM2902 Input current compensation ECOPACK(R) LM2902 6 ECOPACK(R) In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK(R) packages, depending on their level of environmental compliance. ECOPACK(R) specifications, grade definitions and product status are available at: www.st.com. ECOPACK(R) is an ST trademark. Doc ID 2469 Rev 7 13/21 ECOPACK(R) 6.1 LM2902 DIP14 package information Figure 28. DIP14 package mechanical drawing Table 4. DIP14 package mechanical data Millimeters Inches Ref. Min. a1 0.51 B 1.39 Typ. Min. Typ. Max. 0.020 1.65 0.055 0.065 b 0.5 0.020 b1 0.25 0.010 D 20 0.787 E 8.5 0.335 e 2.54 0.100 e3 15.24 0.600 F 7.1 0.280 I 5.1 0.201 L Z 14/21 Max. 3.3 1.27 0.130 2.54 Doc ID 2469 Rev 7 0.050 0.100 ECOPACK(R) LM2902 6.2 SO-14 package information Figure 29. SO-14 package mechanical drawing Table 5. SO-14 package mechanical data Dimensions Millimeters Inches Ref. Min. Typ. Max. Min. Typ. Max. A 1.35 1.75 0.05 0.068 A1 0.10 0.25 0.004 0.009 A2 1.10 1.65 0.04 0.06 B 0.33 0.51 0.01 0.02 C 0.19 0.25 0.007 0.009 D 8.55 8.75 0.33 0.34 E 3.80 4.0 0.15 0.15 e 1.27 0.05 H 5.80 6.20 0.22 0.24 h 0.25 0.50 0.009 0.02 L 0.40 1.27 0.015 0.05 k ddd 8 (max.) 0.10 Doc ID 2469 Rev 7 0.004 15/21 ECOPACK(R) 6.3 LM2902 TSSOP14 package information Figure 30. TSSOP14 package mechanical drawing A A2 A1 K e b L c E D E1 PIN 1 IDENTIFICATION 1 Table 6. TSSOP14 package mechanical data Dimensions Ref. Millimeters Min. Typ. A Max. Min. Typ. 1.2 A1 0.05 A2 0.8 b Max. 0.047 0.15 0.002 0.004 0.006 1.05 0.031 0.039 0.041 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.0089 D 4.9 5 5.1 0.193 0.197 0.201 E 6.2 6.4 6.6 0.244 0.252 0.260 E1 4.3 4.4 4.48 0.169 0.173 0.176 e 16/21 Inches 1 0.65 BSC K 0 L1 0.45 0.60 0.0256 BSC 8 0 0.75 0.018 Doc ID 2469 Rev 7 8 0.024 0.030 ECOPACK(R) LM2902 6.4 QFN16 3 x 3 package mechanical data Figure 31. QFN16 3 x 3 mm package mechanical drawing *$06&% Doc ID 2469 Rev 7 17/21 ECOPACK(R) LM2902 Table 7. QFN16 3 x 3 mm package mechanical data (pitch 0.5 mm) Dimensions Ref. Millimeters Inches Min. Typ. Max. Min. Typ. Max. A 0.80 0.90 1.00 0.031 0.035 0.039 A1 0 0.05 0 A3 0.20 b 0.18 D 2.90 D2 1.50 E 2.90 E2 1.50 e L 3.00 3.00 0.008 0.30 0.007 3.10 0.114 1.80 0.059 3.10 0.114 1.80 0.059 0.50 0.30 0.002 0.012 0.118 0.071 0.118 0.122 0.071 0.020 0.50 0.012 0.020 Figure 32. QFN16 3 x 3 mm footprint recommendation *$06 18/21 0.122 Doc ID 2469 Rev 7 LM2902 Ordering information 7 Ordering information Table 8. Order codes Order code Package Packing Marking LM2902N DIP14 Tube LM2902N LM2902D LM2902DT SO-14 Tube or tape & reel 2902 LM2902PT TSSOP14 LM2902Q4T Temperature range -40C, +125C QFN16 3x3 LM2902YDT(1) SO-14 (Automotive grade level) LM2902YPT(1) TSSOP14 (Automotive grade level) K5H Tape & reel 2902Y 1. Qualified and characterized according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001 & Q 002 or equivalent. Doc ID 2469 Rev 7 19/21 Revision history LM2902 8 Revision history Table 9. Document revision history Date Revision 30-Nov-2001 1 Initial release. 01-Jul-2005 2 PPAP references inserted in the datasheet, see Table 8: Order codes. ESD protection inserted in Table 1 on page 4. 31-Oct-2005 3 An error in the device description was corrected on page 1. PPAP reference inserted in the datasheet see Table 8: Order codes. Minor grammatical and formatting changes throughout. 4 Values for thermal resistance junction to ambient and ESD HBM corrected in Table 1: Absolute maximum ratings (AMR). Values for thermal resistance junction to case added in Table 1: Absolute maximum ratings (AMR). Table 2: Operating conditions added. Electrical characteristics figure captions updated. Section 6: Package information updated. Table 8: Order codes moved to end of document. 5 Removed power dissipation parameter from AMR table and added maximum junction temperature. Updated footnotes for automotive grade order codes. Updated format of package information. 6 Added AMR values for input current in Table 1 on page 4. Added QFN16 3 x 3 mm package information in Chapter 7: Ordering information. Removed LM2902YD order code from Table 8 and changed status of LM2902YPT order code. 7 Small text/layout changes in Features and Description. Updated Figure 2: Pin connections (top view). Table 3: VCC+ = 5V, VCC- = Ground, Vo = 1.4V, Tamb = 25C (unless otherwise specified): DVio replaced by Vio/T. Replaced SO-14 package silhouette, package mechanical drawing (Figure 29) and package mechanical data (Table 5). 18-Jun-2007 18-Dec-2007 16-Feb-2012 29-Jan-2013 20/21 Changes Doc ID 2469 Rev 7 LM2902 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries ("ST") reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST's terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. 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