TL321C, TL321I

OPERATIONAL AMPLIFIERS

SLOS085 – D2343, APRIL 1977 – REVISED OCTOBER 1990

POST OFFICE BOX 655303

Copyright

1

PRODUCTION DATA documents contain information current as of

publication date. Products conform to specifications per the terms of Texas

Instruments standard warranty. Production processing does not necessarily

include testing of all parameters.

Voltages ...3V to 30 V or Dual Supplies

Voltage . . . 0.8 mA Typ

Includes Ground Allowing Direct Sensing

Near Ground

– Input Offset Voltage ...2 mV Typ

– Input Offset Current...3 nA Typ

(TL321I)

– Input BIas Current...45 nA Typ

Maximum-Rated Supply Voltage . . .

±32 V

Amplification . . . 100 V/mV Typ

description

The TL321 is a high-gain, frequency-compensated operational amplifier that is designed specifically to operate

from a single supply over a wide range of voltages. Operation from split supplies is also possible as long as the

difference between the two supplies is 3 V to 30 V and pin 7 is at least 1.5 V more positive than the input

common-mode voltage. The low supply current is independent of the magnitude of the supply voltage.

Applications include transducer amplifiers, dc amplification blocks, and

all the conventional operational

amplifier circuits that now can be more easily implemented in single-supply-voltage systems. For example, the

TL321 can be operated directly off of the standard 5-V supply that is used in digital systems and will easily

provide the required interface electronics without requiring additional

±15-V supplies.

The TL321C is characterized for operation from 0

°C to 70°C. The TL321I is characterized for operation from

–25

°C to 85°C.

1

2

3

4

8

7

6

5

NC

IN –

IN +

GND

NC

OUT

NC

TTL321C, TL321I ...D OR P PACKAGE

(TOP VIEW)

NC – No internal connection

symbol

PACKAGE

SMALL OUTLINE

(D)

PLASTIC DIP

(P)

TA

0

°C to 70°C

TL321CD

TL321CP

AVAILABLE OPTIONS

VIO MAX

at 25

°C

7 mV

–25

°C to 85°C5 mV

TL321ID

TL321IP

The D packages are available taped and reeled. Add the suffix R to

the device type, (e.g., TL321CDR).

IN+

IN–

OUT

+

–