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DG445 Datasheet(PDF) 6 Page - Intersil Corporation |
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DG445 Datasheet(HTML) 6 Page - Intersil Corporation |
6 / 12 page 6 FN3586.9 November 20, 2006 Application Information FIGURE 5. SOURCE/DRAIN CAPACITANCES TEST CIRCUIT Test Circuits and Waveforms (Continued) +15V V+ C GND VS VD INX V- -15V C IMPEDANCE ANALYZER f = 1MHz 0V, 2.4V FIGURE 6. PRECISION WEIGHTED RESISTOR PROGRAMMABLE GAIN AMPLIFIER +15V FET INPUT OP AMP VIN 12 3 2 +5V 7 6 R3 4k Ω R2 5k Ω R1 90k Ω 3 14 11 6 VOUT WITH SW4 CLOSED V OUT V IN ---------------- R 1 R 2 R 3 R 4 +++ R 4 ------------------------------------------------- 100 == GAIN ERROR IS DETERMINED ONLY BY THE RESISTOR TOLERANCE, OP AMP OFFSET AND CMRR WILL LIMIT ACCURACY OF CIRCUIT 2 1 15 16 10 9 7 8 GAIN1 AV = 1 GAIN2 AV = 10 GAIN3 AV = 20 GAIN4 AV = 100 V- 4 -15V GND 5 R4 1k Ω -15V 4 + - 13 VL V+ DG444 OR DG445 +15V FIGURE 7. LEVEL SHIFTER VIN 1/ 4 DG444 VL +5V V- VOUT GND +15V +15V V+ 10k Ω 0V +5V 0V +15V DG444, DG445 |
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Similar Description - DG445 |
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