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LT1219 Datasheet(PDF) 11 Page - Linear Technology |
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LT1219 Datasheet(HTML) 11 Page - Linear Technology |
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11 / 16 page  11 LT1218/LT1219 TYPICAL PERFORMANCE CHARACTERISTICS THD + Noise vs Peak-to-Peak Voltage Large-Signal Response VS = ±15V INPUT VOLTAGE (PEAK-TO-PEAK) 10 1 0.1 0.01 0.001 02 4 35 LT1218/19 • TPC26 1 VS = ±1.5V AV = 1 VS = ±2.5V AV = 1 VS = ±2.5V AV = –1 VS = ±1.5V AV = –1 f = 1kHz RL = 10k (ALL CURVES) Small-Signal Response VS = ±15V AV = 1 VS = ±15V LT1218/18 • TPC27 AV = 1 VS = ±15V LT1218/18 • TPC28 APPLICATIONS INFORMATION Rail-to-Rail Operation The LT1218/LT1219 differ from conventional op amps in the design of both the input and output stages. Figure 1 shows a simplified schematic of the amplifier. The input stage consists of two differential amplifiers, a PNP stage Q1/Q2 and an NPN stage Q3/Q4, which are active over different portions of the input common mode range. Lateral devices are used in both input stages, eliminating the need for clamps across the input pins. Each input stage is trimmed for offset voltage. A complementary output configuration (Q23 through Q26) is employed to create an Q24 D7 Q23 Q25 V – V – V – V + V + V + V + V – C1 C2 Q26 D8 Q22 Q21 D6 Q17 Q16 Q18 Q15 Q19 Q20 D5 D4 D7 Q11 I1 Q10 Q14 CC Q13 Q9 Q8 Q7 D2 Q1 Q2 Q5 D1 Q3 Q4 Q6 D3 Q12 OUT V+ – 300mV V+ V – IN+ IN– LT1218/19 • F01 TRIM SHDN BIAS CONTROL Figure 1. LT1218 Simplified Schematic Diagram |
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Similar Description - LT1219 |
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