L2726 LOW DROP DUAL POWER OPERATIONAL AMPLIFIER .. .. .. .. . OUTPUT CURRENT TO 1 A OPERATES AT LOW VOLTAGES SINGLE OR SPLIT SUPPLY LARGE COMMON-MODE AND DIFFERENTIAL MODE RANGE LOW INPUT OFFSET VOLTAGE GROUND COMPATIBLE INPUTS LOW SATURATION VOLTAGE THERMAL SHUTDOWN CLAMP DIODE SO20 (12 + 4 + 4) ORDERING NUMBER : L2726 DESCRIPTION The L2726 is a monolithic integratedcircuit in SO-20 package intended for use as power operationalamplifiers in a widerangeof applicationsincludingservo amplifiers and power supplies. It is particularly indicatedfor driving inductive loads, as motor and finds applications in compact-disc VCR automative, etc. The high gain and high output power capability provide superior performance whatever an operational amplifier/power booster combination is required. PIN CONNECTION (top view) October 1998 This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice. 1/6 L2726 BLOCK DIAGRAM SCHEMATIC DIAGRAM (one section) ABSOLUTE MAXIMUM RATINGS Symbol Vs Vs Vi Vi IO Ip Ptot Top Tstg, Tj Parameter Supply Voltage Peak Supply Voltage (50ms) Input Voltage Differential Input Voltage DC Output Current Peak Output Current (non repetitive) Power Dissipation at Tamb = 85oC Tcase = 75oC Operating Temperature Storage and Junction Temperature Value 28 50 Vs ± Vs 1 1.5 1 5 – 40 to 85 – 40 to 150 Unit V V A A W o o C C THERMAL DATA R th j-case Thermal Resistance Junction-case Max. 15.0 o R th j-amb Thermal Resistance Junction-ambient (*) Max. 65 o (*) With 4 sq. cm copper area heatsink. 2/6 C/W C/W L2726 ELECTRICAL CHARACTERISTICS Vs = 24V, Tamb = 25oC unless otherwise specified Symbol Parameter Vs Single Supply Voltage Vs Split Supply Voltage Is Quiescent Drain Current Ib Input Bias Current Test Conditions Vo = Vs 2 Min. Typ. Max. 4 28 V ±2 ± 14 V mA Vs = 24V Vs = 24V 10 15 9 15 0.2 1 µA mV Vos Input Offset Voltage 10 Ios Input Offset Current 100 SR Slew Rate B Gain-bandwidth Product Ri Input Resistance Gv O. L. Voltage Gain eN Input Noise Voltage IN Input Noise Voltage 70 B = 22Hz to 22kHz V/µs 1.2 MHz kΩ 80 60 dB 10 µV 200 pA CMR Common Mode Rejection f = 1kHz SVR Supply Voltage Rejection f = 100Hz R G = 10kΩ VR = 0.5V Vs = 24V Vs = ±12V Vs = ±6V Vs = ±2.5V to ±12V Ip = 100mA Ip = 500mA 0.7 1 1.5 Vs = ±2.5V to ±12V Ip = 100mA Ip = 500mA 0.3 0.5 1 f = 1KHz R L = 10Ω Gv = 30dB Vs = 24V Vs = 6V 60 60 VDROP(HIGH) VDROP(LOW) Cs Channel Separation Tsd Thermal Shutdown Junction Temperature Figure 1 : Quiescent Current vs. Supply Voltage nA 2 500 f = 100Hz f = 1kHz Unit 66 84 dB 60 70 75 80 dB dB dB V V 150 dB o C Figure 2 : Open Loop Gain vs. Frequency 3/6 L2726 Figure 3 : Common Mode Rejection Frequency Figure 5 : Output Swing vs. Load Current (Vs = ± 12 V) Figure 7 : Channel Separation vs. Frequency. 4/6 Figure 4 : Output Swing vs. Load Current (Vs = ± 5V) Figure 6 : SupplyVoltage Rejection vs. Frequency L2726 mm DIM. MIN. TYP. inch MAX. MIN. TYP. MAX. A 2.35 2.65 0.093 0.104 A1 0.1 0.3 0.004 0.012 B 0.33 0.51 0.013 0.020 C 0.23 0.32 0.009 0.013 D 12.6 13 0.496 0.512 E 7.4 7.6 0.291 0.299 e 1.27 OUTLINE AND MECHANICAL DATA 0.050 H 10 10.65 0.394 0.419 h 0.25 0.75 0.010 0.030 L 0.4 1.27 0.016 0.050 SO20 K 0° (min.)8° (max.) L h x 45 A B A1 K e C H D 20 11 E 1 10 SO20MEC 5/6 L2726 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. Specification 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. The ST logo is a registered trademark of STMicroelectronics 1998 STMicroelectronics – Printed in Italy – All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Mexico - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A. http://www.st.com 6/6