TLV6001UIDBVT datasheet(17/45 Pages) TI2

17 / 45 page

1.8

3.6

0.5

OUT

VSUP+

VOUT

VIN

VSUP±

TLV6001, TLV6002, TLV6004

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SBOS779D – JUNE 2016 – REVISED MAY 2017

Product Folder Links: TLV6001 TLV6002 TLV6004

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9 Application and Implementation

NOTE

Information in the following applications sections is not part of the TI component

specification, and TI does not warrant its accuracy or completeness. TI’s customers are

responsible for determining suitability of components for their purposes. Customers should

validate and test their design implementation to confirm system functionality.

9.1 Application Information

The TLV600x is a family of low-power, rail-to-rail input and output operational amplifiers specifically designed for

portable applications. The devices operate from 1.8 V to 5.5 V, are unity-gain stable, and are suitable for a wide

range of general-purpose applications. The class AB output stage is capable of driving

≤ 10-kΩ loads connected

to any point between V+ and ground. The input common-mode voltage range includes both rails, and allows the

TLV600x to be used in any single-supply application.

9.2 Typical Application

A typical application for an operational amplifier is an inverting amplifier, as shown in Figure 21. An inverting

amplifier takes a positive voltage on the input and outputs a signal inverted to the input, making a negative

voltage of the same magnitude. In the same manner, the amplifier makes negative input voltages positive on the

output. In addition, amplification may be added by selecting the input resistor RI and the feedback resistor RF.

Figure 21. Application Schematic

9.2.1 Design Requirements

The supply voltage must be chosen to be larger than the input voltage range and the desired output range. The

limits of the input common-mode range (VCM) and the output voltage swing to the rails (VO) must be considered.

For instance, this application scales a signal of ±0.5 V (1 V) to ±1.8 V (3.6 V). Setting the supply at ±2.5 V is

sufficient to accommodate this application.

9.2.2 Detailed Design Procedure

Determine the gain required by the inverting amplifier using Equation 1 and Equation 2:

(1)

(2)

TLV6001UIDBVT Datasheet(PDF) 17 Page - Texas Instruments