TLC274, TLC274A, TLC274B, TLC274Y, TLC279
LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
SLOS092C – SEPTEMBER 1987 – REVISED MARCH 1998
Trimmed Offset Voltage:
TLC279 . . . 900 µV Max at 25°C,
= 5 V
D, J, N, OR PW PACKAGE
(TOP VIEW)
V
DD
Input Offset Voltage Drift . . . Typically
0.1 µV/Month, Including the First 30 Days
1OUT
1IN–
1IN+
4OUT
13 4IN–
1
2
3
4
5
6
7
14
Wide Range of Supply Voltages Over
Specified Temperature Range:
0°C to 70°C . . . 3 V to 16 V
12
11
10
9
4IN+
GND
3IN+
3IN–
3OUT
V
DD
2IN+
2IN–
–40°C to 85°C . . . 4 V to 16 V
–55°C to 125°C . . . 4 V to 16 V
8
2OUT
Single-Supply Operation
Common-Mode Input Voltage Range
Extends Below the Negative Rail (C-Suffix
and I-Suffix Versions)
FK PACKAGE
(TOP VIEW)
Low Noise . . . Typically 25 nV/√Hz
at f = 1 kHz
3
2
1
20 19
18
Output Voltage Range Includes Negative
Rail
4IN+
NC
1IN+
NC
4
5
6
7
8
17
16
15
14
12
High Input Impedance . . . 10 Ω Typ
GND
NC
V
DD
NC
ESD-Protection Circuitry
3IN+
2IN+
Small-Outline Package Option Also
Available in Tape and Reel
9 10 11 12 13
Designed-In Latch-Up Immunity
description
NC – No internal connection
The TLC274 and TLC279 quad operational
amplifiers combine a wide range of input offset
voltage grades with low offset voltage drift, high
input impedance, low noise, and speeds
approaching that of general-purpose BiFET
devices.
DISTRIBUTION OF TLC279
INPUT OFFSET VOLTAGE
30
25
20
15
10
5
290 Units Tested From 2 Wafer Lots
= 5 V
DD
= 25°C
V
T
A
These devices use Texas Instruments
N Package
silicon-gate LinCMOS
technology, which
provides offset voltage stability far exceeding the
stability available with conventional metal-gate
processes.
The extremely high input impedance, low bias
currents, and high slew rates make these
cost-effective devices ideal for applications which
have previously been reserved for BiFET and
NFET products. Four offset voltage grades are
available (C-suffix and I-suffix types), ranging
from the low-cost TLC274 (10 mV) to the high-
precision TLC279 (900 µV). These advantages, in
combination with good common-mode rejection
and supply voltage rejection, make these devices
a good choice for new state-of-the-art designs as
well as for upgrading existing designs.
0
–1200
–600
0
600
1200
V
IO
– Input Offset Voltage – µV
LinCMOS is a trademark of Texas Instruments Incorporated.
Copyright 1998, Texas Instruments Incorporated
PRODUCTION DATA information is 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.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265