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TLV197-Q1 数据表(PDF) 23 Page - Texas Instruments |
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TLV197-Q1 数据表(HTML) 23 Page - Texas Instruments |
23 / 39 page NCH3 PCH2 PCH1 IS1 NCH4 ±Vsupply +Vsupply VIN+ VIN± FUSE BANK VOS TRIM VOS DRIFT TRIM e-trim TM 23 TLV197-Q1, TLV2197-Q1, TLV4197-Q1 www.ti.com SBOS935 – APRIL 2020 Product Folder Links: TLV197-Q1 TLV2197-Q1 TLV4197-Q1 Submit Documentation Feedback Copyright © 2020, Texas Instruments Incorporated 7.3.6 Common-Mode Voltage Range The TLVx197-Q1 is a 36-V, true rail-to-rail input operational amplifier with an input common-mode range that extends 100 mV beyond either supply rail. This wide range is achieved with paralleled complementary N-channel and P-channel differential input pairs, as shown in Figure 39. The N-channel pair is active for input voltages close to the positive rail, typically (V+) – 3 V to 100 mV greater than the positive supply. The P-channel pair is active for inputs from 100 mV less than the negative supply to approximately (V+) – 1.5 V. There is a small transition region, typically (V+) –3 V to (V+) – 1.5 V in which both input pairs are on. This transition region can vary modestly with process variation, and within this region PSRR, CMRR, offset voltage, offset drift, noise, and THD performance may be degraded compared to operation outside this region. Figure 39. Rail-to-Rail Input Stage To achieve the best performance for two-stage rail-to-rail input amplifiers, avoid the transition region when possible. The TLVx197-Q1 uses a precision trim for both the N-channel and P-channel regions. This technique enables significantly lower levels of offset than previous-generation devices, and causes the variance in the transition region of the input stages to appear exaggerated relative to offset over the full common-mode range. |
类似零件编号 - TLV197-Q1 |
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类似说明 - TLV197-Q1 |
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