TLC252, TLC252A, TLC252B, TLC252Y, TLC25L2, TLC25L2A, TLC25L2B

TLC25L2Y, TLC25M2, TLC25M2A, TLC25M2B, TLC25M2Y

LinCMOS

 DUAL OPERATIONAL AMPLIFIERS

SLOS002I – JUNE 1983 – REVISED MARCH 2001

16

POST OFFICE BOX 655303

PARAMETER MEASUREMENT INFORMATION

single-supply versus split-supply test circuits

Because the TLC252, TLC25L2, and TLC25M2 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.

+

–

CL

RL

VI

VO

VDD

+

–

CL

RL

VI

VO

VDD +

VDD –

(a) SINGLE SUPPLY

(b) SPLIT SUPPLY

Figure 1. Unity-Gain Amplifier

(a) SINGLE SUPPLY

(a) SPLIT SUPPLY

+

–

1/2 VDD

VO

VDD

2 k

Ω

20

Ω

20

Ω

+

–

VO

VDD

2 k

Ω

20

Ω

20

Ω

VDD–

Figure 2. Noise-Test Circuit

(a) SINGLE SUPPLY

(a) SPLIT SUPPLY

+

–

1/2 VDD

VO

VDD

10 k

Ω

100

Ω

CL

VI

+

–

VO

VDD+

10 k

Ω

100

Ω

CL

VI

VDD–

Figure 3. Gain-of-100 Inverting Amplifier