TLV2460-Q1_16 Datasheet, PDF (21/46 Pages) Texas Instruments – Low-Power Rail-to-Rail Input/Output Operational Amplifiers

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TLV2460-Q1, TLV2460A-Q1, TLV2461-Q1, TLV2461A-Q1
TLV2462-Q1, TLV2462A-Q1, TLV2463-Q1, TLV2463A-Q1, TLV2464A-Q1
SGLS008F – MARCH 2003 – REVISED DECEMBER 2015
8 Parameter Measurement Information
_
R_null
+
R_L
C_L
Figure 48. Capacitive Load Drive
9 Detailed Description
9.1 Overview
The TLV246x-Q1 family of devices are low-power rail-to-rail input and output operational amplifiers. The input
common-mode voltage range extends beyond the supply rails for maximum dynamic range in a low-voltage
system. The amplifier output has rail-to-rail performance with high drive capability, solving one of the limitations
of older rail-to-rail input and output operational amplifiers
9.2 Functional Block Diagram
9.3 Feature Description
The TLV246x-Q1 family features 6.4-MHz bandwidth and voltage noise of 11 nV/√Hz with performance rated
from 2.7 V to 6 V across an automotive temperature range (–40⁰C to 125⁰C). This family suits a wide range of
automotive applications.
9.3.1 Driving a Capacitive Load
When the amplifier configuration is in this manner, capacitive loading directly on the output decreases the phase
margin of the device leading to high-frequency ringing or oscillations. Therefore, for capacitive loads of greater
than 10 pF, the recommendation is that a resistor be placed in series (R_NULL) with the output of the amplifier, see
Figure 49. A minimum value of 20 Ω works well for most applications.
R_F
R_G
Input
_
+
R_NULL
Output
C_LOAD
Figure 49. Driving a Capacitive Load
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Product Folder Links: TLV2460-Q1 TLV2460A-Q1 TLV2461-Q1 TLV2461A-Q1 TLV2462-Q1 TLV2462A-Q1 TLV2463-
Q1 TLV2463A-Q1 TLV2464A-Q1