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TLV2372IDG4 Datasheet(PDF) 24 Page - Texas Instruments |
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TLV2372IDG4 Datasheet(HTML) 24 Page - Texas Instruments |
24 / 58 page VI C2 R2 R1 C1 RF RG R1 = R2 = R C1 = C2 = C Q = Peaking Factor (Butterworth Q = 0.707) _ + VDD/2 _3dB F G 1 f 2 RC R R 1 2 Q = p = æ ö - ç ÷ è ø 24 TLV2370, TLV2371, TLV2372 TLV2373, TLV2374, TLV2375 SLOS270F – MARCH 2001 – REVISED AUGUST 2016 www.ti.com Product Folder Links: TLV2370 TLV2371 TLV2372 TLV2373 TLV2374 TLV2375 Submit Documentation Feedback Copyright © 2001–2016, Texas Instruments Incorporated Feature Description (continued) Figure 37. 2-Pole Low-Pass Sallen-Key Filter 8.3.5 Shutdown Function Three members of the TLV237x family (TLV2370, TLV2373, and TLV2375) have a shutdown terminal for conserving battery life in portable applications. When the shutdown terminal is tied low, the supply current is reduced to 25 μA/channel, the amplifier is disabled, and the outputs are placed in a high impedance mode. To enable the amplifier, the shutdown terminal can either be left floating or pulled high. When the shutdown terminal is left floating, take care to ensure that parasitic leakage current at the shutdown terminal does not inadvertently place the operational amplifier into shutdown. 8.4 Device Functional Modes The TLV2371, TLV2372, and TLV2374 have a single functional mode. These devices are operational as long as the power-supply voltage is between 2.7 V (±1.35 V) and 16 V (±8 V). The TLV2370, TLV2373, and TLV2375 are likewise operational as long as the power-supply voltage is between 2.7 V (±1.35 V) and 16 V (±8 V), additionally these devices also have a shutdown capability. When the shutdown control pin is driven below 0.8 V above ground, the device is in shutdown. If the shutdown control pin voltage is driven to greater than 2 V above ground, the device is in its normal operating mode. See Shutdown Function for additional information regarding shutdown operation. |
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