KA248/KA348 QUAD OPERATIONAL AMPLIFIER QUAD OPERATIONAL AMPLIFIERS The KA248/KA348 is a true quad KA741. It consists of four independent, high-gain, internally compensated, low-power operational amplifiers which have been designed to provide functional characteristics identical to those of the familiar KA741 operational amplifier. In addition the total supply current for all four amplifiers is comparable to the Supply current of a single KA741 type OP Amp. Other features include input offset currents and input bias current which are much less than those of a standard KA741. Also, excellent isolation between amplifiers has been achieved by independently biasing each amplifier and using layout techniques which minimize thermal coupling. 14 DIP 14 SOP FEATURES • • • • • • • • • • KA741 OP Amp operating characteristics Low supply current drain Class AB output stage-no crossover distortion Pin compatible with the KA324 & KA3403 Low input offset voltage- 1mV Type. Low input offset current-4nA Type. Low input bias current-30nA Type. Gain bandwidth product for KA348 (unity gain)-1.0MHz Type. High degree of isolation between amplifiers-120dB Overload protection for inputs and outputs BLOCK DIAGRAM SCHEMATIC DIAGRAM ORDERING INFORMATION (One Section Only) Device Package KA348 14 DIP KA348D 14 SOP KA248 14 DIP KA248D 14 SOP Operating Temperature Î -25 ~ +85Î 0 ~ +70 KA248/KA348 QUAD OPERATIONAL AMPLIFIER Î) ABSOLUTE MAXIMUM RATINGS (TA = 25 Characteristic Symbol Supply Voltage Value ä18 ä36 ä18 VCC VI(DIFF) Differential Input Voltage VI Input Voltage Unit Output Short Circuit Duration V V V Continuous Operating Temperature KA248 T OPR - 25 ~ +85 T STG - 65~ +150 KA348 Î Î Î 0~ +70 Storage Temperature ELECTRICAL CHARACTERISTICS Î, unless otherwise specified) (VCC =15V, VEE= -15V, T A=25 Characteristic Symbol Input Offset Voltage VIO Input Offset Current IIO Input Bias Current IBIAS Test Conditions RS '10K` KA248 Min Typ 1 NOTE 1 KA348 Max Min 6.0 Typ 1 7.5 4 NOTE 1 30 50 4 200 mV 30 200 400 ` RI ICC Large Signal Voltage Gain GV Channel Separation CS f = 1KHz to 20KHz Common Mode Input Voltage Range VI(R) NOTE 1 Small Signal Bandwidth BW GV = 1 1.0 1.0 MHz Phase Margin MPH GV = 1 60 60 Degress Slew Rate SR GV = 1 0.5 0.5 Output Short Circuit Current ISC (10K` (2K` R (10K` R (10K` 25 25 Output Voltage Swing VO(P.P) Common Mode Rejection Ratio CMRR Power Supply Rejection Ratio PSRR NOTE 1 ( ( Î ( ( Î KA348: 0 T A +70 KA248: -25 T A +85 RL RL (2K` 25 NOTE 1 NOTE 1 160 15 ä12 4.5 2.5 nA Supply Current (all Amplifiers) 2.4 0.8 nA Input Resistance RL 2.5 50 100 500 0.8 6.0 Unit 7.5 125 NOTE 1 Max 2.4 25 ä12 ä13 ä10 ä12 ä12 mA 160 V/mV 15 120 M 4.5 120 dB V ä12 ä13 0 ä12 ss V/ mA V S NOTE 1 70 90 70 90 dB S NOTE 1 77 96 77 96 dB KA248/KA348 QUAD OPERATIONAL AMPLIFIER TYPICAL PERFORMANCE CHARACTERISTICS Fig. 1 SUPPLY CURRENT äV) SUPPLY VOLTAGE ( Fig. 3 SOURCE CURRENT LIMIT Fig. 2 VOLTAGE SWING ä V) SUPPLY VOLTAGE ( Fig. 4 SINK CURRENT LIMIT OUTPUT SOURCE CURRENT (mA) OUTPUT SINK CURRENT (mA) Fig. 5 OUTPUT IMPEDANCE Fig. 6 COMMON-MODE REJECTION RATIO FREQUENCY (HZ) FREQUENCY (Hz) KA248/KA348 Fig. 7 OPEN LOOP FREGUENCV RESPONSE Fig. 9 LARGE SIGNAL PULSE RESPONSE Fig. 11 UNDISTORTED OUTPUT VOLTAGE SWING QUAD OPERATIONAL AMPLIFIER Fig. 8 BODE PLOT Fig. 10 SMALL SIGNAL PULSE RESPONSE Fig. 12 INVERTING LARGE SIGNAL PULSE RESPONSE KA248/KA348 QUAD OPERATIONAL AMPLIFIER Fig. 13 INPUT NOISE VOLTAGE AND NOISE CURRENT FREQUENCY (Hz) Fig. 15 NEGATIVE COMMON.MODE INPUT VOLTAGE LIMFY NEGATIVE SUPPLY VOLTS(V) Fig. 14 POSITIVE COMMON MODE INPUT VOLTAGE LIMIT POSITIVE SUPPLY (V)