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TLC27L4B Datasheet(PDF) 17 Page - Texas Instruments

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Part No. TLC27L4B
Description  LinCMOSE PRECISION QUAD OPERATIONAL AMPLIFIERS
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Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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TLC27L4B Datasheet(HTML) 17 Page - Texas Instruments

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TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9
LinCMOS
™ PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS053C – OCTOBER 1987 – REVISED AUGUST 1994
17
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
single-supply versus split-supply test circuits
Because the TLC27L4 and TLC27L9 are optimized for single-supply operation, circuit configurations used for
the various tests often present some inconvenience since the input signal, in many cases, must be offset from
ground. This inconvenience can be avoided by testing the device with split supplies and the output load tied to
the negative rail. A comparison of single-supply versus split-supply test circuits is shown below. The use of either
circuit gives the same result.
VDD
CL
RL
VO
VI
VI
VO
RL
CL
VDD +
VDD –
(a) SINGLE SUPPLY
(b) SPLIT SUPPLY
Figure 1. Unity-Gain Amplifier
VDD
VDD +
1/2 VDD
20
VO
2 k
20
VDD –
20
20
2 k
VO
(b) SPLIT SUPPLY
(a) SINGLE SUPPLY
Figure 2. Noise-Test Circuit
VDD
10 k
VO
100
CL
1/2 VDD
VI
VI
CL
100
VO
10 k
VDD +
VDD –
(b) SPLIT SUPPLY
(a) SINGLE SUPPLY
Figure 3. Gain-of-100 Inverting Amplifier


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