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| DUAL OPERATIONAL AMPLIFIERS FEATURES No frequency Compensation Required No latch-up Large common mode and differential voltage range Parameter tracking over temperature range Gain and phase match between amplifiers Internally frequency compensated Low noise input transistors LM4558 SOP8/ DIP8 PKG Out 1 2 A B ++ - 8 7 -6 Vcc IN1(-) Out2 IN2 (-) IN2 (+) IN1 (+) 3 Gnd 4 5 ORDERING INFORMATION Device LM4558D LM4558N Package 8 SOP 8 DIP DESCRIPTIONS The LM4558 devices is a monolithic integrated circuit designed for dual operational amplifier. The high common-mode input voltage range and the absence of latch-up make these amplifiers ideal for voltage-follower applications. The devices are short-circuit protected and the internal frequency compen -sation ensures stability without external components. The LM4558 is characterized for operation from 0oC TO 70oC. SCHEMATIC (EACH AMPLIFIER) Vcc+ ININ+ OUT Vcc- HTC 149 DUAL OPERATIONAL AMPLIFIERS Absolute maximum ratings over operating free-air temperature range. LM4558 Supply Voltage Differential Input Voltage Input Voltage Duration of output short circuit to ground, one amplifier at a time VCC VI(DIFF) VI Tstg 22 30 15 Unlimited -65 to 150 LM4558 UNIT V V V o Short temperature range C Recommended operating conditions Supply voltage Operating free-air temperature, T A Vcc+ VccLM4558 MIN 5 -5 0 MAX 15 -15 70 UNIT V o C Electrical characterisitics at specified free-air temperature, V PARAMETER VIO Input Offset Voltage V01/V02 Crosstalk attenuation IIO Input Offset Current rJ IIB Input Bias Current VICR Common-Mode Input Voltage range Open AVD=100 VO=0 VO=0 TEST CONDITIONS* CC = 15V(unless otherwise noted) MIN LM4558 TYP 0.5 MAX 5 6 85 100 5 200 500 UNIT 25 Full Range RS=100 f=1kHz 25 25 Full Range 25 25 Full Range 25 12 12 M Input resistance VO=0 0 5 140 500 1500 V 14 14 13 VOM Maximum output voltage swing AVD Large-Signal Differential Voltage Amplification CMRR Common-Mode Rejection Ratio KSVS Supply Voltage Sensitivity Ratio(VIO/VCC) V01/V02 Crosstalk Attenuation ICC Supply Current (Both Amplifiers) RL = 10 RL = 2 RL 2 VO=10V RL 2 VCC=5V to MAX, VIC=VICR MIN 25 25 Full Range 25 Full Range 25 25 10 10 50 25 65 V 350 V/ 150 /V 5.6 6.6 5.0 80 30 120 2.5 3.0 2.0 f=1 kHz to 20kHz VO=o, No Load 25 25 TA(min) TA(max) * All characteristics are measured under open-loop conditions with zero common-mode input voltage unless otherwise specified. Full range is 0 oC to 70 Oc. TA(min) = 0oC. TA(max)= 70oC. HTC 150 DUAL OPERATIONAL AMPLIFIERS TYPICAL PERFORMANCE CHARACTERISTICS LM4558 1000 100 10 OUTPUT NOISE (rms) (mV Input Noise(peak) () 100 INPUT NOISE (rms) () GV=1000 1.0 GV=100 0.1 GV=10 GV=1 10 10 1.0 0 10 100 1.0k 10k 100k 10M SOURCE RESISTANCE() Figure 1. Burst Noise vs Source Resistance 0 10 100 1.0k 10k 100k 1M SOURCE RESISTANCE() Figure 2. RMS Noise vs Source Resistance 0 10 100 1.0k 10k 100k 1M SOURCE RESISTANCE() Figure 3. Output Noise vs Source Resistance 140 Avol. VOLTAGE GAIN (dB) 120 INPUT NOISE 100 80 60 40 20 0 10 100 1.0K 10k 100k FREQUENCY() Figure 4. Spectral Noise Density Gv =10, Rs=100 140 PHASE MARGIN (DECREES) 120 100 80 60 40 20 0 -20 1.0 180 160 140 120 100 80 60 40 10 100 1.0k 10K 100K 1M 10M 20 1.0 10 100 1.0k 10K 100K 1M FREQUENCY() 10M UNITY G FREQUENCY() Figure 5. Open Loop Frequency Response Figure 6. Phase Margin vs Frequency OUTPUT CHARACTERISITICS CURRENT SINKING 1 15 supplies 1 VO-OUTPUT VOLTAGE peak) (V VO-OUTPUT VOLTAGE peak) (V 1 9. 9 7. 5. 3. 1. 10 50 1.0 2.0 10 20 50 100 LOAD RESISTANCE () Figure 7. Positive Output Voltage Swing vs Load Resistance 6 12 15 15 supplies V0-OUTPUT VOLTAGE(Vp-p) 13 11 9.0 9 7.0 5.0 3.0 1.0 100 500 1.0K2.0K 10k 20k 50k 100k LOAD RESISTANCE () Figure 7. Negative Output Voltage Swing vs Load Resistance 6 12 24 20 16 12 8 4 0 10 100 1.0k 10k 100k 1000k 1M FREQUENCY(Hz) Figure 9. Power Bandwidth 3 3 HTC 151 |
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