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TLV2780 数据表(PDF) 13 Page - Texas Instruments |
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TLV2780 数据表(HTML) 13 Page - Texas Instruments |
13 / 26 page TLV2780, TLV2781, TLV2782, TLV2783, TLV2784, TLV2785, TLV278xA FAMILY OF 1.8 V HIGHSPEED RAILTORAIL INPUT/OUTPUT OPERATIONAL AMPLIFIERS WITH SHUTDOWN SLOS245E − MARCH 2000 − REVISED JANUARY 2005 13 WWW.TI.COM PARAMETER MEASUREMENT INFORMATION _ + RNULL RL CL Figure 29 APPLICATION INFORMATION driving a capacitive load When the amplifier is configured in this manner, capacitive loading directly on the output will decrease the device’s phase margin leading to high frequency ringing or oscillations. Therefore, for capacitive loads of greater than 10 pF, it is recommended that a resistor be placed in series (RNULL) with the output of the amplifier, as shown in Figure 30. CL RF Input Output RG RNULL + − RL CL RF Input Output RG RNULL + − RL Snubber C (a) (b) Figure 30. Driving a Capacitive Load offset voltage The output offset voltage, (VOO) is the sum of the input offset voltage (VIO) and both input bias currents (IIB) times the corresponding gains. The following schematic and formula can be used to calculate the output offset voltage: V OO + V IO 1 ) R F R G " I IB ) R S 1 ) R F R G " I IB– R F + − VI + RG RS RF IIB− VO IIB+ Figure 31. Output Offset Voltage Model |
类似零件编号 - TLV2780 |
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类似说明 - TLV2780 |
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