TLC274CPWR datasheet(17/49 Pages) TI

17 / 49 page

TLC274, TLC274A, TLC274B, TLC274Y, TLC279

LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS

SLOS092D − SEPTEMBER 1987 − REVISED MARCH 2001

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

PARAMETER MEASUREMENT INFORMATION

single-supply versus split-supply test circuits

Because the TLC274 and TLC279 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

VDD +

VDD −

(a) SINGLE SUPPLY

(b) SPLIT SUPPLY

Figure 1. Unity-Gain Amplifier

VDD

VDD +

1/2 VDD

Ω

2 k

Ω

VDD −

Ω

2 k

Ω

(b) SPLIT SUPPLY

(a) SINGLE SUPPLY

Figure 2. Noise-Test Circuit

VDD

10 k

Ω

100

Ω

1/2 VDD

100

Ω

10 k

Ω

VDD +

VDD −

(b) SPLIT SUPPLY

(a) SINGLE SUPPLY

Figure 3. Gain-of-100 Inverting Amplifier

TLC274CPWR 数据表(PDF) 17 Page - Texas Instruments

TLC274CPWR 数据表(HTML) 17 Page - Texas Instruments

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TLC274CPWR 数据表(PDF) 17 Page - Texas Instruments

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