LT1007/LT1037
Low Noise, High Speed
Precision Operational Amplifiers
FEATURES
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DESCRIPTIO
Guaranteed
4.5nV/√Hz 10Hz Noise
Guaranteed
3.8nV/√Hz 1kHz Noise
0.1Hz to 10Hz Noise, 60nV
P-P
Typical
Guaranteed
7 Million Min Voltage Gain, R
L
= 2k
Guaranteed
3 Million Min Voltage Gain, R
L
= 600Ω
Guaranteed
25µV Max Offset Voltage
Guaranteed
0.6µV/°C Max Drift with Temperature
Guaranteed
11V/µs Min Slew Rate (LT1037)
Guaranteed
117dB Min CMRR
APPLICATIO S
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Low Noise Signal Processing
Microvolt Accuracy Threshold Detection
Strain Gauge Amplifiers
Direct Coupled Audio Gain Stages
Sine Wave Generators
Tape Head Preamplifiers
Microphone Preamplifiers
, LTC and LT are registered trademarks of Linear Technology Corporation.
The LT
®
1007/LT1037 series features the lowest noise
performance available to date for monolithic operational
amplifiers: 2.5nV/√Hz wideband noise (less than the noise of
a 400Ω resistor), 1/f corner frequency of 2Hz and 60nV peak-
to-peak 0.1Hz to 10Hz noise. Low noise is combined with
outstanding precision and speed specifications: 10µV offset
voltage, 0.2µV/°C drift, 130dB common mode and power
supply rejection, and 60MHz gain bandwidth product on the
decompensated LT1037, which is stable for closed-loop
gains of 5 or greater.
The voltage gain of the LT1007/LT1037 is an extremely high
20 million driving a 2kΩ load and 12 million driving a 600Ω
load to
±10V.
In the design, processing and testing of the device, particular
attention has been paid to the optimization of the entire
distribution of several key parameters. Consequently, the
specifications of even the lowest cost grades (the LT1007C
and the LT1037C) have been spectacularly improved com-
pared to equivalent grades of competing amplifiers.
The sine wave generator application shown below utilizes the
low noise and low distortion characteristics of the LT1037.
TYPICAL APPLICATIO
430Ω
Ultrapure 1kHz Sine Wave Generator
LT1037
6
OUTPUT
C
1
2πRC
R = 1591.5Ω
±0.1%
C = 0.1µF
±0.1%
f=
#327 LAMP
C
R
TOTAL HARMONIC DISTORTION = < 0.0025%
NOISE = < 0.0001%
AMPLITUDE =
±8V
OUTPUT FREQUENCY = 1.000kHz FOR VALUES GIVEN
±0.4%
1007/37 TA01
+
3
R
VOLTAGE NOISE (20nV/DIV)
–
2
0
U
0.1Hz to 10Hz Noise
2
4
6
TIME (SEC)
8
10
1007/37 TA02
U
U
sn100737 100737fbs
1
LINER [ LINEAR TECHNOLOGY ]
