LT1013/LT1014



10134fd

Typical applicaTion

DescripTion

Quad Precision Op Amp (LT1014)

Dual Precision Op Amp (LT1013)

which directly upgrades designs in the industry standard

14-pin DIP LM324/LM348/OP-11/4156 pinconfiguration.

It is no longer necessary to compromise specifications,

while saving board space and cost, as compared to single

operational amplifiers.

The LT1014’s low offset voltage of 50µV, drift of 0.3µV/°C,

offset current of 0.15nA, gain of 8 million, common mode

rejection of 117dB and power supply rejection of 120dB

qualify it as four truly precision operational amplifiers.

Particularly important is the low offset voltage, since no

offsetnullterminalsareprovidedinthequadconfiguration.

Although supply current is only 350µA per amplifier, a new

output stage design sources and sinks in excess of 20mA

of load current, while retaining high voltage gain.

Similarly,theLT1013isthefirstprecisiondualopampinthe

8-pin industry standard configuration, upgrading the per-

formanceofsuchpopulardevicesastheMC1458/MC1558,

LM158andOP-221.TheLT1013’sspecificationsaresimilar

to (even somewhat better than) the LT1014’s.

Both the LT1013 and LT1014 can be operated off a single

5V power supply: input common mode range includes

ground; the output can also swing to within a few millivolts

of ground. Crossover distortion, so apparent on previous

single-supply designs, is eliminated. A full set of specifica-

tions is provided with ±15V and single 5V supplies.

FeaTures

applicaTions

n

Single Supply Operation

Input Voltage Range Extends to Ground

Output Swings to Ground While Sinking Current

n

Pin Compatible to 1458 and 324 with Precision Specs

n

Guaranteed Offset Voltage: 150µV Max

n

Guaranteed Low Drift: 2µV/°C Max

n

Guaranteed Offset Current: 0.8nA Max

n

Guaranteed High Gain

5mA Load Current: 1.5 Million Min

17mA Load Current: 0.8 Million Min

n

Guaranteed Low Supply Current: 500µA Max

n

n

Low Current Noise—Better than 0P-07, 0.07pA/√Hz

n

Battery-Powered Precision Instrumentation

Strain Gauge Signal Conditioners

Thermocouple Amplifiers

Instrumentation Amplifiers

n

4mA to 20mA Current Loop Transmitters

n

Multiple Limit Threshold Detection

n

Active Filters

n

Multiple Gain Blocks

LT1014

1

4

11

2

3

5V

5V

1M

4k

OUTPUT A

10mV/°C

LT1014

7

6

5

1M

OUTPUT B

10mV/°C

4k

1.8k

YSI 44007

5k

AT 25°C

260

1684

299k

3k

LT1004

1.2V

14

12

13

–

+

LT1014

USE TYPE K THERMOCOUPLES. ALL RESISTORS = 1% FILM.

COLD JUNCTION COMPENSATION ACCURATE

TO ±1°C FROM 0°C TO 60°C.

USE 4TH AMPLIFIER FOR OUTPUT C.

LT1014 Distribution of Offset Voltage

3-Channel Thermocouple Thermometer

INPUT OFFSET VOLTAGE (µV)

–300

0

200

–200

–100

100

300

700

600

500

400

300

200

100

0

425 LT1014s

(1700 OP AMPS)

TESTED FROM

THREE RUNS

J PACKAGE

1013/14 TA02

L

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Technology Corporation. All other trademarks are the property of their respective owners.