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

TLC25L2Y, TLC25M2, TLC25M2A, TLC25M2B, TLC25M2Y

LinCMOS

™ DUAL OPERATIONAL AMPLIFIERS

SLOS002G – JUNE 1983 – REVISED AUGUST 1996

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