LM2903 Low-power dual voltage comparator Datasheet - production data • TTL, DTL, ECL, MOS, CMOS compatible outputs • Automotive qualification N DIP8 (plastic package) D SO8 (plastic micropackage) Related products • See LM2903W for similar device with higher ESD performances • See LM2903H for similar device with operating temperature up to 150 °C Description P TSSOP8 (thin shrink small outline package) S MiniSO8 (plastic micropackage) This device consists of two independent lowpower voltage comparators designed specifically to operate from a single supply over a wide range of voltages. Operation from split power supplies is also possible. In addition, the device has a unique characteristic in that the input common-mode voltage range includes the negative rail even though operated from a single power supply voltage. DFN8 2x2 mm (plastic micropackage) Features • Wide single supply voltage range or dual supplies +2 V to +36 V or ±1 V to ±18 V • Very low supply current (0.4 mA) independent of supply voltage (1 mW/comparator at +5 V) • Low input bias current: 25 nA typ. • Low input offset current: ±5 nA typ. • Input common-mode voltage range includes negative rail • Low output saturation voltage: 250 mV typ. (IO = 4 mA) • Differential input voltage range equal to the supply voltage November 2013 This is information on a product in full production. DocID2470 Rev 11 1/19 www.st.com Contents LM2903 Contents 1 Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Package pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 4 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5 Typical application schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 6 Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6.1 DIP8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 6.2 SO8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 6.3 TSSOP8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6.4 MiniSO8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 6.5 DFN8 2x2 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 7 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 2/19 DocID2470 Rev 11 LM2903 1 Schematic diagram Schematic diagram Figure 1. Schematic diagram (1/2 LM2903) 3.5 μA 3.5 μA 100 μA 100 μA Non-inverting input Inverting input 2 Package pin connections Figure 2. Pin connections for each package (top view) 287 ,1 ,1 9&& 9&& 287 ,1 ,1 DIP8 / SO8 / TSSOP8 / MiniSO8 / DFN8 DocID2470 Rev 11 3/19 19 Absolute maximum ratings and operating conditions 3 LM2903 Absolute maximum ratings and operating conditions Table 1. Absolute maximum ratings Symbol Parameter VCC Supply voltage Vid Differential input voltage Vin Input voltage Value ±18 or 36 ±36 Rthja Thermal resistance junction to ambient DIP8 SO8 TSSOP8 MiniSO8 DFN8 2x2 mm Rthjc Thermal resistance junction to case(2) DIP8 SO8 TSSOP8 MiniSO8 DFN8 2x2 mm Tstg ESD V -0.3 to +36 Output short-circuit to ground (1) Tj Unit Infinite (2) 85 125 120 190 57 41 40 37 39 57 Maximum junction temperature Storage temperature range °C/W +150 -65 to +150 Human body model (HBM)(3) 800 Machine model (MM)(4) 200 CDM: charged device model (all packages except MiniSO8)(5) 1.5 CDM: charged device model (MiniSO8) 1.3 °C V kV + can 1. Short-circuits from the output to VCC cause excessive heating and possible destruction. The maximum output current is approximately 20 mA, independent of the magnitude of VCC+. 2. Short-circuits can cause excessive heating and destructive dissipation. Values are typical. 3. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a 1.5 kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating. 4. 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 Ω). This is done for all couples of connected pin combinations while the other pins are floating. 5. 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. Table 2. Operating conditions Symbol 4/19 Parameter Vicm Common mode input voltage range Tmin ≤ Tamb ≤ Tmax Toper Operating free-air temperature range DocID2470 Rev 11 Value Unit 0 to VCC+ -1.5 0 to VCC+ -2 V -40 to +125 °C LM2903 4 Electrical characteristics Electrical characteristics Table 3. VCC+ = 5 V, VCC- = GND, Tamb = 25°C (unless otherwise specified) Symbol Parameter Min. Typ. Max. Unit mV Vio Input offset voltage(1) Tmin ≤ Tamb ≤ Tmax 1 7 15 Iio Input offset current Tmin ≤ Tamb ≤ Tmax 5 50 150 Iib Input bias current(2) Tmin ≤ Tamb ≤ Tmax 25 250 400 Avd Large signal voltage gain VCC = 15 V, RL= 15 kΩ, Vo= 1 to 11 V ICC Supply current (all comparators) VCC = 5 V, no load VCC = 30 V, no load Vid Differential input voltage(3) VOL Low level output voltage (Vid = -1 V, Isink = 4 mA) Tmin ≤ Tamb ≤ Tmax 250 IOH High level output current (VCC =Vo = 30 V, Vid = 1 V) Tmin ≤ Tamb ≤ Tmax 0.1 Isink Output sink current (Vid = -1 V, Vo = 1.5 V) tres Small signal response time(4) (RL = 5.1 kΩ to VCC+) 25 200 0.4 1 nA V/mV 1 2.5 mA VCC+ V 400 700 mV 1 6 nA µA 16 mA 1.3 µs time(5) trel 1. Large signal response TTL input (Vref = +1.4 V, RL= 5.1 kΩ to VCC+) Output signal at 50 % of final value Output signal at 95 % of final value 500 1 ns µs At output switch point, VO ≈ 1.4 V, RS = 0 Ω with VCC+ from 5 V to 30 V, and over the full input common-mode range (0 V to VCC+ –1.5 V). 2. The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of the output, so no loading charge exists on the reference of input lines. 3. Positive excursions of input voltage may exceed the power supply level. As long as the other voltage remains within the common-mode range, the comparator provides a proper output state. The low input voltage state must not be less than –0.3 V (or 0.3 V below the negative power supply, if used). 4. The response time specified is for a 100 mV input step with 5 mV overdrive. 5. Maximum values are guaranteed by design and evaluation. DocID2470 Rev 11 5/19 19 Electrical characteristics LM2903 Figure 3. Supply current vs. supply voltage Figure 4. Input current vs. supply voltage Figure 5. Output saturation voltage vs. output current Figure 6. Response time for various input overdrives - negative transition Figure 7. Response time for various input overdrives - positive transition 6/19 DocID2470 Rev 11 LM2903 Typical application schematics 5 Typical application schematics Figure 8. Basic comparator Figure 9. Driving CMOS 5V VCC = 5 V 100 kΩ 15 kΩ +V(ref) +V(ref) 1/2 LM2903 1/ 2 LM2903 VO & -V(ref) -V(ref) Figure 10. Driving TTL Figure 11. Low frequency op-amp 5V 5V 15 kΩ 1/2 LM2903 10 kΩ +V(ref) ~ 1/ 2 LM2903 & el eo -V(ref) 0.5 μF 100 kΩ & 1 kΩ AV = 100 Figure 12. Low frequency op-amp with boost Figure 13. Transducer amplifier 5V 5V (eo = 0 V for el = 0 V) Magnetic pick-up 15 kΩ 1/ 2 LM2903 ~ el 2N 2222 10 kΩ 3 kΩ 1/ 2 LM2903 0.5 μF eo 20 MΩ 100 kΩ eo 1 kΩ AV = 100 DocID2470 Rev 11 10 kΩ 7/19 19 Typical application schematics LM2903 Figure 14. Low frequency op- amp with offset adjust Figure 15. Zero crossing detector (single power supply) 5V 5V Offset adjust 100 kΩ 5V 100 kΩ R2 RS 1 MΩ 5.1 kΩ R1 5.1 kΩ el 15 kΩ 1/ 2 LM2903 el ~ 5.1 kΩ 100 kΩ 1 MΩ 1/ 2 LM2903 2N 2222 1N4148 0.5 μ F R1 100 kΩ 1 kΩ 20 MΩ 10 kΩ eo Figure 16. Limit comparator VCC Figure 17. Split-supply applications - zero crossing detector (12 V) 15 V 10 kΩ 2RS V(ref) high 1/ 2 LM2903 5.1 kΩ Lamp RS eI 1/2 LM2903 eI ~ 2RS 1/2 LM2903 eo ~ 2N 2222 15 V V(ref) low Figure 18. Crystal controlled oscillator Figure 19. Comparator with a negative reference VCC = 15 V 15 V 200 kΩ 2 kΩ 100 kΩ 5.1 kΩ VCC 0.1 μF 1/2 LM2903 0 eo 1/2 LM2903 eI ~ 5V f = 100 kHz 15 V 200 kΩ 8/19 DocID2470 Rev 11 eo LM2903 Typical application schematics Figure 20. Time delay generator VC C = +15 V 10 kΩ 15 kΩ 3 kΩ 200 kΩ 10 MΩ 10 kΩ 1/2 LM2903 V3 VCC V03 to t3 3 kΩ 10 kΩ 51 kΩ 1/2 LM2903 VCC 0 to tA 10 MΩ 10 kΩ VC1 1/2 LM2903 V2 V(ref.) VO2 VCC to t2 0.001 μF Input gating signal 3 kΩ VCC 10 MΩ 51 kΩ 1/2 LM2903 V3 VC1 V2 V1 0 t 0 t1 t2 t3 10 kΩ VCC V O1 t0 t1 V1 t 51 kΩ t4 Figure 21. Two-decade, high-frequency VCO VCC 100 kΩ Frequency control voltage input Vcontrol 500 pF 10 kΩ 100 kΩ 3 kΩ 3 kΩ 5.1 kΩ 1/ 2 LM2903 1/ 2 LM2903 0.01 μF 0.1 μF Output 1 VCC /2 20 kΩ 50 kΩ VCC Output 2 20 kΩ 1/ 2 LM2903 VCC /2 VCC = + 30 V Vcontrol +50 V +250 mV 700 Hz fo 100 kHz DocID2470 Rev 11 9/19 19 Package information 6 LM2903 Package information In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. 10/19 DocID2470 Rev 11 LM2903 6.1 Package information DIP8 package information Figure 22. DIP8 package mechanical drawing Table 4. DIP8 package mechanical data Dimensions Ref. Millimeters Min. Typ. A Inches Max. Min. Typ. 5.33 Max. 0.210 A1 0.38 0.015 A2 2.92 3.30 4.95 0.115 0.130 0.195 b 0.36 0.46 0.56 0.014 0.018 0.022 b2 1.14 1.52 1.78 0.045 0.060 0.070 c 0.20 0.25 0.36 0.008 0.010 0.014 D 9.02 9.27 10.16 0.355 0.365 0.400 E 7.62 7.87 8.26 0.300 0.310 0.325 E1 6.10 6.35 7.11 0.240 0.250 0.280 e 2.54 0.100 eA 7.62 0.300 eB L 10.92 2.92 3.30 3.81 DocID2470 Rev 11 0.430 0.115 0.130 0.150 11/19 19 Package information 6.2 LM2903 SO8 package information Figure 23. SO8 package mechanical drawing Table 5. SO8 package mechanical data Dimensions Ref. Millimeters Min. Typ. A Max. Min. Typ. 1.75 0.25 Max. 0.069 A1 0.10 A2 1.25 b 0.28 0.48 0.011 0.019 c 0.17 0.23 0.007 0.010 D 4.80 4.90 5.00 0.189 0.193 0.197 E 5.80 6.00 6.20 0.228 0.236 0.244 E1 3.80 3.90 4.00 0.150 0.154 0.157 e 0.004 0.010 0.049 1.27 0.050 h 0.25 0.50 0.010 0.020 L 0.40 1.27 0.016 0.050 L1 k ccc 12/19 Inches 1.04 1° 0.040 8° 0.10 DocID2470 Rev 11 1° 8° 0.004 LM2903 6.3 Package information TSSOP8 package information Figure 24. TSSOP8 package mechanical drawing Table 6. TSSOP8 package mechanical data Dimensions Ref. Millimeters Min. Typ. A Inches Max. Min. Typ. 1.20 A1 0.05 A2 0.80 b Max. 0.047 0.15 0.002 1.05 0.031 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.008 D 2.90 3.00 3.10 0.114 0.118 0.122 E 6.20 6.40 6.60 0.244 0.252 0.260 E1 4.30 4.40 4.50 0.169 0.173 0.177 e 0.65 k 0° L 0.45 L1 aaa 1.00 0.60 0.006 0.039 0.041 0.0256 8° 0° 0.75 0.018 1 8° 0.024 0.030 0.039 0.10 DocID2470 Rev 11 0.004 13/19 19 Package information 6.4 LM2903 MiniSO8 package information Figure 25. MiniSO8 package mechanical drawing Table 7. MiniSO8 package mechanical data Dimensions Ref. Millimeters Min. Typ. A Max. Min. Typ. 1.1 A1 0 A2 0.75 b Max. 0.043 0.15 0 0.95 0.030 0.22 0.40 0.009 0.016 c 0.08 0.23 0.003 0.009 D 2.80 3.00 3.20 0.11 0.118 0.126 E 4.65 4.90 5.15 0.183 0.193 0.203 E1 2.80 3.00 3.10 0.11 0.118 0.122 e L 0.85 0.65 0.40 0.60 0.006 0.033 0.80 0.016 0.024 0.95 0.037 L2 0.25 0.010 ccc 0° 0.037 0.026 L1 k 14/19 Inches 8° 0.10 DocID2470 Rev 11 0° 0.031 8° 0.004 LM2903 6.5 Package information DFN8 2x2 package mechanical data Figure 26. DFN8 2x2x0.6 mm package mechanical drawing (pitch 0.5 mm) $06B9 Table 8. DFN8 2x2x0.6 mm package mechanical data (pitch 0.5 mm) Dimensions Ref. A Millimeters Inches Min. Typ. Max. Min. Typ. Max. 0.51 0.55 0.60 0.020 0.022 0.024 A1 0.05 A3 0.002 0.15 0.006 b 0.18 0.25 0.30 0.007 0.010 0.012 D 1.85 2.00 2.15 0.073 0.079 0.085 D2 1.45 1.60 1.70 0.057 0.063 0.067 E 1.85 2.00 2.15 0.073 0.079 0.085 E2 0.75 0.90 1.00 0.030 0.035 0.039 e 0.50 0.020 L 0.50 0.020 ddd 0.08 0.003 DocID2470 Rev 11 15/19 19 Package information LM2903 Figure 27. DFN8 2x2x0.6 mm footprint recommendation PP PP PP PP PP PP $06B9 16/19 DocID2470 Rev 11 LM2903 7 Ordering information Ordering information Table 9. Order codes Order code Temperature range Package Packing Marking LM2903N DIP8 Tube LM2903N LM2903D/DT SO8 Tube or tape and reel 2903 LM2903YDT(1) LM2903PT -40 °C to +125 °C SO8 (automotive grade) 2903Y TSSOP8 2903 LM2903YPT(2) TSSOP8 (automotive grade) LM2903YST(1) MiniSO8 (automotive grade) K419 DFN8 2x2 mm K1Z LM2903Q2T Tape and reel 2903Y 1. Qualified and characterized according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001 & Q 002 or equivalent. 2. Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001 & Q 002 or equivalent are on-going. DocID2470 Rev 11 17/19 19 Revision history 8 LM2903 Revision history Table 10. Document revision history Date Revision 15-Jun-2003 1 Initial release. 2-May-2005 2 PPAP references inserted in the datasheet see table order code p1. 8-Aug-2005 3 Electrical characteristics table corrected (see Table 3 on page 5). Pin connections diagram moved to cover page. Lead-free package information added. 27-Oct-2005 4 PPAP part number added in Table 9: Order codes. 11-May-2007 5 ESD tolerance added in Table 1: Absolute maximum ratings on page 4. 6 Added Rthja and Rthjc, and ESD CDM parameters in Table 1: Absolute maximum ratings. Removed Vicm from electrical characteristics in Table 3. Reformatted package information in Section 6. Added footnotes for automotive grade parts in Table 9: Order codes. 21-Feb-2008 7 Corrected SO-8 package mechanical data. Dimension E in drawing was marked H in table. Corrected revision history (revision 6 is of January 2008, not January 2007). 03-Dec-2009 8 Added pin description on cover page. 16-Feb-2012 9 Removed LM2903YD order code from Table 9. 05-Dec-2012 10 Added the DFN8 package Small modifications to Figure 2 and Table 1. 17-Jan-2008 21-Nov-2013 11 Changes Added MiniSO8 package Added Related products Table 1: updated Rthjc and CDM information for MIniSO8 Table 9: added order code LM2903YST for MiniSO8 (automotive grade). Updated disclaimer 18/19 DocID2470 Rev 11 LM2903 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. 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