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LMH6321 Datasheet(PDF) 18 Page - Texas Instruments |
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LMH6321 Datasheet(HTML) 18 Page - Texas Instruments |
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18 / 41 page  V IN ±1 V BUF634A 1 k 9 k Motor ½ OPA281 0 BUF634A ½ OPA 281 0 10 k 10 k ± + ± + ±20 V At 250mA Figure 9-6. Bridge-Connected Motor Driver 9.2 Typical Application The BUF634A device can be connected inside the feedback loop, as shown in Figure 9-7, of most op amps to increase output current. When connected inside the feedback loop, the offset voltage of the BUF634A and other errors are corrected by the open-loop gain and feedback of the op amp. 1 k Ÿ 1 k Ÿ R L ± + C1 is not required for most common op amps. Use C1 with unity-gain stable, high-speed op amps. Figure 9-7. Boosting Op Amp Output Current 9.2.1 Design Requirements • Boost the output current of an OPA2810 • Operate from ±12-V power supplies • Operate from –40°C to +125°C • Gain = 2 V/V • Output current = ±250 mA • Bandwidth greater than 100 kHz BUF634A SBOS948D – FEBRUARY 2019 – REVISED SEPTEMBER 2020 www.ti.com 18 Submit Document Feedback Copyright © 2020 Texas Instruments Incorporated Product Folder Links: BUF634A |
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