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This is information on a product in full production.

January 2013 Doc ID 2469 Rev 7 1/21

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 µA

■ 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

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.

DIP14

(Plastic package)

SO-14

(Plastic micropackage)

TSSOP14

(Thin shrink small outline package)

QFN16 3x3

(Plastic micropackage)

www.st.com

Summary of content (21 pages)

PAGE 1
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 µA ■ 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.
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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 . . . . . . . . . . . .
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LM2902 Schematic diagram Figure 1. Schematic diagram (1/4 LM2902) Figure 2.
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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.
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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.
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Electrical characteristics LM2902 4 Electrical characteristics Table 3. VCC+ = 5V, VCC- = Ground, Vo = 1.4V, Tamb = 25°C (unless otherwise specified) Symbol Parameter Min. Typ. Max.
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LM2902 Table 3. Electrical characteristics VCC+ = 5V, VCC- = Ground, Vo = 1.4V, Tamb = 25°C (unless otherwise specified) (continued) Symbol VOL Min. Typ. Max. Unit 5 20 20 mV Low level output voltage (RL = 10 kΩ) Tmin ≤ Tamb ≤ Tmax SR Slew rate (VCC+ = 15 V, Vin = 0.5 to 3 V, RL = 2 kΩ, CL = 100 pF, unity gain) 0.4 V/µs GBP Gain bandwidth product (VCC+ = 30 V, Vin = 10 mV, RL = 2 kΩ, CL = 100 pF) 1.
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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.
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LM2902 Electrical characteristics COMMON MODE REJECTION RATIO (dB) Figure 9. Common mode rejection ratio Figure 10. Output characteristics (sink) 120 100 80 +7.5V 100kΩ 100 Ω 60 - 40 100 Ω eI eO + 100kΩ 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 Ω 0.
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Electrical characteristics LM2902 Figure 15. Input current Figure 16. Voltage gain 160 VOLTAGE GAIN (dB) R L = 20k Ω 120 R L = 2k Ω 80 40 0 10 20 30 POSITIVE SUPPLY VOLTAGE (V) Figure 17. Power supply and common mode rejection ratio 10/21 Figure 18.
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LM2902 Typical single-supply applications 5 Typical single-supply applications Figure 19. AC coupled inverting amplifier Rf 100 kΩ CI AV = - R1 100 kΩ Rf R1 (as shown A V = -10) R1 10 kΩ R2 VCC 100 kΩ 2VPP 0 eo RB 6.2 kΩ R3 100 kΩ A V = 1 + R2 R1 (as shown AV = 11) Co 1/4 LM2902 CI RL 10 kΩ R3 1 MΩ eI ~ RL 10 kΩ R4 100 kΩ VCC C2 10 μF Figure 21. Non-inverting DC gain eO 1/4 LM2902 e1 100 kΩ +5 V 100 kΩ e2 100 kΩ e3 100 kΩ eO (V) R2 1 MΩ R5 100 kΩ Figure 22.
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Typical single-supply applications LM2902 Figure 25. High input Z, DC differential amplifier Figure 26. Low drift peak detector IB R4 100 kΩ R2 100 kΩ 1/4 R1 100 kΩ 1/4 LM2902 eI R3 100 kΩ +V1 +V2 C * 1 μF ZI 1/4 LM2902 2I B R 1 MΩ 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 μF IB IB 3 MΩ IB 1/4 LM2902 Aux. amplifier for input current compensation 1.5 MΩ 12/21 0.
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ECOPACK® LM2902 6 ECOPACK® 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.
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ECOPACK® 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.
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ECOPACK® 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.
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ECOPACK® 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.
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ECOPACK® LM2902 6.4 QFN16 3 x 3 package mechanical data Figure 31.
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ECOPACK® 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.
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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 -40°C, +125°C QFN16 3x3 LM2902YDT(1) SO-14 (Automotive grade level) LM2902YPT(1) TSSOP14 (Automotive grade level) K5H Tape & reel 2902Y 1.
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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.
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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.