LM146 LM246 LM346 PROGRAMMABLE QUAD BIPOLAR OPERATIONAL AMPLIFIER ■ PROGRAMMABLE ELECTRICAL CHARACTERISTICS LOW SUPPLY CURRENT (250µA/amplifier) GAIN-BANDWITH PRODUCT : 1MHz LARGE DC VOLTAGE GAIN : 120dB LOW NOISE VOLTAGE : 28nV/√Hz WIDE POWER SUPPLY RANGE / ±1.5V to ±22V ■ CLASSE AB OUTPUT STAGE. NO CROSS-OVER DISTORTION ■ OVERLOAD PROTECTION FOR INPUTS AND OUTPUTS ■ ■ ■ ■ ■ N DIP16 (Plastic Package) DESCRIPTION The LM346 consists of four independent, high gain, internally compensated, low power programmable amplifiers. Two external resistors (Rset) allow the user to program the gain-bandwith product, slew rate, supply current, input bias current, input offset current and input noise. For example the user can trade-off supply current for bandwith or optimize noise figure for a given source resistance. In a similar way other amplifier characteristics can be tailored to the application. Except for the two programming pins at the end of the package the LM346 pin out is the same as the LM324 and LM348. D SO16 (Plastic Micropackage) PIN CONNECTIONS (top view) PROGRAMMING EQUATIONS : Total supply current = 1mA (Iset = 10µA) Gain bandwith product = 1MHz (Iset = 10µA) Slew rate = 0.5V/µs (Iset = 10µΑ) Input bias current ≈30nA (Iset = 10µΑ) Iset = current into pin 8 and pin 9 (see schematic diagram) Vcc+ – Vcc - – 0.6 V I = ----------------------------------------------------se t R set ORDER CODE Part Number Temperature Range Package N D -55°C, +125°C • • LM246 -40°C, +105°C LM346 0°C, +70°C Example : LM246N • • • • LM146 O utput 1 1 16 O utp ut 4 Inv ertin g Inpu t 1 2 - - 15 Inverti ng In put 4 N on-inv erting inpu t 1 3 + + 14 No n-inv erting inpu t 4 V CC+ 4 13 V CC - N on-inv erting Inpu t 2 5 12 N on-i nverti ng in put 3 Inve rting I nput 2 6 11 Inv erting inpu t 3 O utp ut 2 7 10 Set 8 9 O utp ut 3 Set N = Dual in Line Package (DIP) D = Small Outline Package (SO) - also available in Tape & Reel (DT) April 2002 1/5 LM146-LM246-LM346 SCHEMATIC DIAGRAM (1/4 LM146) ABSOLUTE MAXIMUM RATINGS Symbol VCC Parameter Supply voltage 1) Vi l Input Voltage Vid Differential Input Voltage 2) Ptot Tstg 1. 2. 2/5 ±22 V ±15 V ±30 V mW 500 LM146 LM246 LM346 Storage Temperature Range Unit Infinite Output Short-circuit Duration Power Dissipation N/D Suffix Opearting Free-air Temperature Range Toper Value -55 to +125 40 to +105 0 to +70- °C -65 to +150 °C For supply voltage less than ±15V, the absolute maximum input voltage is equal to the supply voltage. Any of the amplifier outputs can be shorted to ground indefinitly; however more than one should not be simultaneously shorted as the maximum junction will be exceeded. LM146-LM246-LM346 ELECTRICAL CHARACTERISTICS VCC+ = ±15V, Iset = 10µA, Tamb = +25°C (unless otherwise specified) LM146 Symbol LM246 - LM346 Parameter Unit Min. Typ. Max. 0.5 Min. Typ. Max. 3 5 0.5 5 6 V io Input Offset Voltage (Rs ≤ 10kΩ) Tamb = 25°C Tmin ≤ Tamb ≤ Tmax Iio Input Offset Current Tamb = 25°C Tmin ≤ Tamb ≤ Tmax 2 20 25 2 100 100 Iib Input Bias Current Tamb = 25°C Tmin ≤ Tamb ≤ Tmax 30 100 100 30 250 250 mV nA nA Avd Large Signal Voltage Gain (Vo = ±10V, RL = 10kΩ) Tamb = 25°C Tmin ≤ Tamb ≤ Tmax 100 50 1000 50 25 1000 SVR Supply Voltage Rejection Ratio (Rs ≤ 10kΩ) Tamb = 25°C Tmin ≤ Tamb ≤ Tmax 80 80 110 80 80 110 Icc V/mV dB Supply Current, all AMp, no load Tamb = 25°C Tmin ≤ Tamb ≤ Tmax mA 1 2 2 1 2 2 Vicm Input Common Mode Voltage Range Tamb = 25°C Tmin ≤ Tamb ≤ Tmax CMR Common Mode Rejection Ratio (Rs ≤ 10kΩ) Tamb = 25°C Tmin ≤ Tamb ≤ Tmax 80 70 110 Output Short-circuit Current Tamb = 25°C Tmin ≤ Tamb ≤ Tmax 10 4 20 Output Voltage Swing (RL ≤ 10kΩ) Tamb = 25°C Tmin ≤ Tamb ≤ Tmax 12 12 SR Slew Rate (VI = ±10V, RL = 10kΩ, CL = 100pF, unity Gain) 0.3 RI Input Resistance 1 1 MΩ CI Input Capacitance 2 2 pF 120 120 dB Ios ±Vopp ±13.5 ±13.5 dB GBP THD en Total Harmonic Distortion (f = 1kHz, Av = 20dB, RL = 10kΩ CL = 100pF, Vo = 2V pp) Equivalent Input Noise Voltage (f = 1kHz, Rs = 100Ω 80 70 110 10 4 20 14 12 12 14 0.5 0.3 0.5 mA 30 35 30 35 V V/µs Vo1/Vo2 Channel Separation (RL = 10kΩ, Vo = 12V pp) Gain Bandwith Product (VI = 10 mV, R L = 10kΩ, CL = 100pF f =100kHz) ±13.5 ±13.5 MHz 0.8 1 0.5 1 % 0.015 0.015 28 28 nV -----------Hz 3/5 LM146-LM246-LM346 PACKAGE MECHANICAL DATA 16 PINS - PLASTIC PACKAGE Millimeters Inches Dim. Min. a1 B b b1 D E e e3 F i L Z 4/5 Typ. 0.51 0.77 Max. Min. 1.65 0.020 0.030 0.5 0.25 Typ. Max. 0.065 0.020 0.010 20 8.5 2.54 17.78 0.787 0.335 0.100 0.700 7.1 5.1 3.3 0.280 0.201 0.130 1.27 0.050 LM146-LM246-LM346 PACKAGE MECHANICAL DATA 16 PINS - PLASTIC MICROPACKAGE Millimeters Inches Dim. Min. A a1 a2 b b1 C c1 D E e e3 F G L M S Typ. Max. Min. 1.75 0.2 1.6 0.46 0.25 0.1 0.35 0.19 Typ. 0.069 0.008 0.063 0.018 0.010 0.004 0.014 0.007 0.5 Max. 0.020 45° (typ.) 9.8 5.8 10 6.2 0.386 0.228 1.27 8.89 3.8 4.6 0.5 0.394 0.244 0.050 0.350 4.0 5.3 1.27 0.62 0.150 0.181 0.020 0.157 0.209 0.050 0.024 8° (max.) Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibil ity for the consequences of use of such information nor for any infring ement of patents or other righ ts 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 witho ut notice. This publ ication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life suppo rt devices or systems withou t express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics 2002 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 - Swit zerland - United Kingdom - United States http://www. st.com 5/5