1
LT1013/LT1014
Quad Precision Op Amp (LT1014)
Dual Precision Op Amp (LT1013)
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.
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 configura-
tion. 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/
1558, LM158 and OP-221. The LT1013’s specifications
are similar 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 specifi-
cations is provided with ±15V and single 5V supplies.
FEATURES
DESCRIPTION
U
■
Single Supply Operation
Input Voltage Range Extends to Ground
Output Swings to Ground while Sinking Current
■
Pin Compatible to 1458 and 324 with Precision Specs
■
Guaranteed
Offset Voltage 150µV Max.
■
Guaranteed
Low Drift 2µV/°C Max.
■
Guaranteed
Offset Current 0.8nA Max.
■
Guaranteed
High Gain
5mA Load Current 1.5 Million Min.
17mA Load Current 0.8 Million Min.
■
Guaranteed
Low Supply Current 500µA Max.
■
Low Voltage Noise, 0.1Hz to 10Hz 0.55µVp-p
■
Low Current Noise—Better than 0P-07, 0.07pA/√Hz
APPLICATIONS
U
■
Battery-Powered Precision Instrumentation
Strain Gauge Signal Conditioners
Thermocouple Amplifiers
Instrumentation Amplifiers
■
4mA–20mA Current Loop Transmitters
■
Multiple Limit Threshold Detection
■
Active Filters
■
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
5kΩ
AT 25°C
260Ω
1684Ω
299k3k
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 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
NUMBER OF UNITS
700
600
500
400
300
200
100
0
V
S
= ±15V
T
A
= 25°C
425 LT1014s
(1700 OP AMPS)
TESTED FROM
THREE RUNS
J PACKAGE
, LTC and LT are registered trademarks of Linear Technology Corporation.
