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OPA27GP Datasheet(PDF) 11 Page - Texas Instruments |
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OPA27GP Datasheet(HTML) 11 Page - Texas Instruments |
11 / 22 page OPA27, OPA37 11 SBOS135C www.ti.com FIGURE 11. Low Frequency Noise Comparison. FIGURE 10. NAB Tape Head Preamplifier. FIGURE 9. High Slew Rate Unity-Gain Inverting Amplifier. OPA37 Output Input 1k Ω 1k Ω 2 3 6 500pF 250 Ω OPA37 Output 316k Ω 4.99k Ω G ≈ 50dB at 1kHz. Metal film resistors. Film capacitors. R L and CL per head manufacturer’s recommendations. 100 Ω 2 3 6 0.01 µF 1 µF 20k Ω R L Magnetic Tape Head C L 10k Ω 0.5 µV 0.5 µV 0.5 µV 0.5 µV 5 µV A. 741 noise with circuit well-shielded from air currents and RFI. (Note scale change.) B. OP-07AH with circuit well-shielded from air currents and RFI. C. OPA27AJ with circuit well-shielded from air currents and RFI. (Represents ultimate OPA27 performance potential.) D. OPA27 with circuit unshielded and exposed to normal lab bench-top air currents. (External thermoelectric potentials far exceed OPA27 noise.) E. OPA27 with heat sink and shield which protects input leads from air currents. Conditions same as (D). Offset G =1k 10Hz Low- Pass Filter Chart Recorder 10mV/mm 5mm/s DUT Total Gain = 106 10 Ω |
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Similar Description - OPA27GP |
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