LT1013/LT1014
Quad Precision Op Amp (LT1014)
Dual Precision Op Amp (LT1013)
Description
Features
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 Low Voltage Noise, 0.1Hz to 10Hz: 0.55µV
P-P
n Low Current Noise—Better than 0P-07, 0.07pA/√Hz
n
Applications
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 specifications is provided with ± 15V and single 5V supplies.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Typical Application
LT1014 Distribution of Offset Voltage
3-Channel Thermocouple Thermometer
4k
13
LT1014
2
3
260Ω
4
LT1014
1
OUTPUT A
10mV/°C
11
1.8k
1M
5
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.
300
200
100
6
–
4k
VS = ±15V
TA = 25°C
425 LT1014s
(1700 OP AMPS)
500 TESTED FROM
THREE RUNS
400 J PACKAGE
600
NUMBER OF UNITS
+
YSI 44007
5k
AT 25°C
1684Ω
12
–
14
700
5V
+
LT1004
1.2V
1M
299k
–
5V
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
offset null terminals are provided in the quad configuration.
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, the LT1013 is the first precision dual op amp in the
8-pin industry standard configuration, upgrading the performance of such popular devices as the MC1458/MC1558,
LM158 and OP-221. The LT1013’s specifications are similar
to (even somewhat better than) the LT1014’s.
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
n
3k
The LT ®1014 is the first precision quad operational amplifier
which directly upgrades designs in the industry standard
14-pin DIP LM324/LM348/OP-11/4156 pin configuration.
It is no longer necessary to compromise specifications,
while saving board space and cost, as compared to single
operational amplifiers.
7
OUTPUT B
10mV/°C
0
100
–300 –200 –100
0
200
INPUT OFFSET VOLTAGE (µV)
300
1013/14 TA02
10134fd
