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HA9P5127-5Z Datasheet(PDF) 5 Page - Intersil Corporation |
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HA9P5127-5Z Datasheet(HTML) 5 Page - Intersil Corporation |
5 / 9 page 5 FN2906.6 July 27, 2005 Application Information FIGURE 3. SUGGESTED OFFSET VOLTAGE ADJUSTMENT Low resistances are preferred for low noise applications as a 1k Ω resistor has 4nV/√Hz of thermal noise. Total resistances of greater than 10kΩ on either input can reduce stability. In most high resistance applications, a few picofarads of capacitance across the feedback resistor will improve stability. FIGURE 4. SUGGESTED STABILITY CIRCUITS Typical Performance Curves Unless Otherwise Specified: TA = 25oC, VSUPPLY = ±15V FIGURE 5. TYPICAL OFFSET VOLTAGE DRIFT vs TEMPERATURE FIGURE 6. NOISE CHARACTERISTICS NOTE: Tested Offset Adjustment Range is |VOS + 1mV| minimum referred to output. Typical range is ±4mV with RT = 10kΩ. 1 2 3 4 8 7 6 5 + - RT 10K V+ R1 C3 R2 R3 R1 CS R2 R3 + - + - 30 20 10 0 -10 -20 -30 -40 -50 -60 -60 -40 -20 0 20 40 60 80 100 120 TEMPERATURE (oC) 12 10 8 6 4 2 0 1 10 100 1K 10K 100K 1M 6 5 4 3 2 1 0 NOISE VOLTAGE NOISE CURRENT FREQUENCY (Hz) HA-5127, HA-5127A |
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