TLC2202CPSRG4 datasheet(53/66 Pages) TI

53 / 66 page

TLC220x, TLC220xA, TLC220xB, TLC220xY

Advanced LinCMOS

™ LOW-NOISE PRECISION

OPERATIONAL AMPLIFIERS

SLOS175 – FEBRUARY 1997

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

APPLICATION INFORMATION

latch-up avoidance

Because CMOS devices are susceptible to latch-up due to their inherent parasitic thyristors, the TLC220x,

TLC220xA, and TLC220xB inputs and outputs are designed to withstand – 100-mA surge currents without

sustaining latch-up; however, techniques reducing the chance of latch-up should be used whenever possible.

Internal protection diodes should not be forward biased in normal operation. Applied input and output voltages

should not exceed the supply voltage by more than 300 mV. Care should be exercised when using capacitive

coupling on pulse generators. Supply transients should be shunted by the use of decoupling capacitors

(0.1

µF typical) located across the supply rails as close to the device as possible.

electrostatic discharge protection

These devices use internal ESD-protection circuits that prevent functional failures at voltages at or below

2000 V. Care should be exercised in handling these devices as exposure to ESD may result in degradation of

the device parametric performance.

macromodel information

Macromodel information provided was derived using Microsim

Parts

™, the model generation software used

with Microsim

PSpice

™. The Boyle macromodel (see Note 5) and subcircuit in Figure 40 were generated using

the TLC220x typical electrical and operating characteristics at 25

°C. Using this information, output simulations

of the following key parameters can be generated to a tolerance of 20% (in most cases):

D Unity-gain frequency

D Common-mode rejection ratio

D Phase margin

D DC output resistance

D AC output resistance

D Short-circuit output current limit

D Maximum positive output voltage swing

D Maximum negative output voltage swing

D Slew rate

D Quiescent power dissipation

D Input bias current

D Open-loop voltage amplification

NOTE 5: G. R. Boyle, B. M. Cohn, D. O. Pederson, and J. E. Solomon, “Macromodeling of Integrated Circuit Operational Amplifiers”,

IEEE Journal

of Solid-State Circuits, SC-9, 353 (1974).

PSpice and Parts are trademarks of MicroSim Corporation.

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