LT1037 Linear Technology Corporation, LT1037 Datasheet

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LT1037

Manufacturer Part Number
LT1037
Description
Low Noise, High Speed Precision Operational Amplifiers
Manufacturer
Linear Technology Corporation
Datasheet

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FEATURES
APPLICATIO S
TYPICAL APPLICATIO
#327 LAMP
, LTC and LT are registered trademarks of Linear Technology Corporation.
Guaranteed 4.5nV/ Hz 10Hz Noise
Guaranteed 3.8nV/ Hz 1kHz Noise
0.1Hz to 10Hz Noise, 60nV
Guaranteed 7 Million Min Voltage Gain, R
Guaranteed 3 Million Min Voltage Gain, R
Guaranteed 25 V Max Offset Voltage
Guaranteed 0.6 V/ C Max Drift with Temperature
Guaranteed 11V/ s Min Slew Rate (LT1037)
Guaranteed 117dB Min CMRR
Low Noise Signal Processing
Microvolt Accuracy Threshold Detection
Strain Gauge Amplifiers
Direct Coupled Audio Gain Stages
Sine Wave Generators
Tape Head Preamplifiers
Microphone Preamplifiers
Ultrapure 1kHz Sine Wave Generator
C
R
U
2
3
TOTAL HARMONIC DISTORTION = < 0.0025%
NOISE = < 0.0001%
AMPLITUDE = 8V
OUTPUT FREQUENCY = 1.000kHz FOR VALUES GIVEN 0.4%
+
LT1037
430
R
P-P
6
Typical
U
C
OUTPUT
L
L
= 2k
= 600
f =
R = 1591.5
C = 0.1 F 0.1%
2 RC
1
Precision Operational Amplifiers
1007/37 TA01
0.1%
DESCRIPTIO
The LT
performance available to date for monolithic operational
amplifiers: 2.5nV/ Hz wideband noise (less than the noise of
a 400 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: 10 V offset
voltage, 0.2 V/ 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 2k load and 12 million driving a 600
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.
®
1007/LT1037 series features the lowest noise
Low Noise, High Speed
0
U
2
0.1Hz to 10Hz Noise
TIME (SEC)
4
LT1007/LT1037
6
8
1007/37 TA02
sn100737 100737fbs
10
1

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LT1037 Summary of contents

Page 1

... LT1037, which is stable for closed-loop gains greater. The voltage gain of the LT1007/LT1037 is an extremely high 20 million driving a 2k load and 12 million driving a 600 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 ...

Page 2

... Input Noise Voltage n Input Noise Voltage Density i Input Noise Current Density RATINGS (Note 1) Lead Temperature (Soldering, 10 sec.)................. 300 C Operating Temperature Range LT1007/LT1037AC, C ............................. LT1007/LT1037I ............................... – LT1007/LT1037AM, M (OBSOLETE) – 125 TOP VIEW V TRIM TRIM – ...

Page 3

... O VCL CONDITIONS MIN (Note 2) (Note 10) 10 10.5V 114 4.5V to 18V 106 10V 4 1k 10V 2 12.5 L LT1007/LT1037 LT1007C/I/M LT1037C/I/M TYP MAX MIN TYP MAX 7 5 12.5 11.0 12.5 130 110 126 130 106 126 20.0 5.0 20.0 16.0 3.5 16.0 12.0 2.0 12.0 13.8 12.5 13.5 12.5 10.5 12.5 2.5 1.7 2 8.0 5.0 8.0 60 ...

Page 4

... 15V, unless otherwise noted. S LT1007I/LT1037I MIN TYP MAX 40 125 0.3 1 11.7 105 120 101 120 2.0 15.0 1.5 12.0 12.0 13.6 95 165 125 15V, unless otherwise noted. S LT1007M/LT1037M TYP MAX MIN TYP MAX 160 0.2 0.6 0.3 1 11.5 10.3 11.5 126 104 120 126 100 120 14.0 2 ...

Page 5

... SOURCE RESISTANCE (k ) 1007/37 G05 Wideband Voltage Noise (0.1Hz to Frequency Indicated 0.1 0.01 0 100 BANDWIDTH (kHz) 1007/37 G08 LT1007/LT1037 0.02Hz to 10Hz RMS Noise. Gain = 50,000 (Measured on HP3582 Spectrum Analyzer) 179 3.59 MARKER AT 2Hz ( = 1/f CORNER) = 50,000 1007/37 G03 Voltage Noise vs Temperature 15V S ...

Page 6

... L 0 – 100 125 –25 TEMPERATURE ( C) 1007/37 G14 Offset Voltage Drift with Temperature of Representative Units 15V S 40 LT1007/LT1037 LT1007A/LT1037A –10 –20 –30 –40 –50 50 125 –50 – 100 TEMPERATURE ( C) 1007/37 G17 Voltage Gain and 600 L – ...

Page 7

... V = 15V 1mA OUT A = 1000 A = 1000 0 0.01 LT1007 LT1037 0.001 8 100 10k 10 1k 100k FREQUENCY (Hz) LT1007/LT1037 Input Bias Current Over the Common Mode Range 20 15 DEVICE WITH POSITIVE INPUT CURRENT 15V – ...

Page 8

... GAIN 10 0 –10 0 100 FREQUENCY (MHz) 1007/37 G32 LT1007 Large-Signal Response 5V 0V – – 1 VCL V = 15V 1007/37 G35 S LT1037 Phase Margin, Gain Bandwidth Product, Slew Rate vs Temperature 15V 100pF L 60 PHASE MARGIN 50 GBW 20 SLEW 15 10 –50 –25 0 ...

Page 9

... In addition, the LT1007/LT1037 may be fitted to 741 sockets with the removal or modification of external nulling components. Offset Voltage Adjustment The input offset voltage of the LT1007/LT1037 and its drift with temperature, are permanently trimmed at wafer testing to a low level. However, if further adjustment necessary, the use of a 10k nulling potentiometer OS will not degrade drift with temperature ...

Page 10

... Noise Testing The 0.1Hz to 10Hz peak-to-peak noise of the LT1007/ LT1037 is measured in the test circuit shown (Figure 5a). The frequency response of this noise tester (Figure 5b) indicates that the 0.1Hz corner is defined by only one zero. The test time to measure 0.1Hz to 10Hz noise should not ...

Page 11

... INPUT –15V THE HIGH GAIN AND WIDE BANDWIDTH OF THE LT1037 (AND LT1007) IS USEFUL IN LOW FREQUENCY, HIGH CLOSED-LOOP GAIN AMPLIFIER APPLICATIONS. A TYPICAL PRECISION OP AMP MAY HAVE AN OPEN-LOOP GAIN OF ONE MILLION WITH 500kHz BANDWIDTH. AS THE GAIN ERROR PLOT SHOWS, THIS DEVICE IS CAPABLE OF 0.1% AMPLIFYING ACCURACY UP TO 0.3Hz ONLY. EVEN INSTRUMENTATION RANGE SIGNALS CAN VARY AT A FASTER RATE. THE LT1037’ ...

Page 12

... OUTPUT 365 INPUT 1007/37 TA04 THE ADDITION OF THE LT1007 DOUBLES THE AMPLIFIER’S OUTPUT DRIVE TO 33mA. GAIN ACCURACY IS 0.02%, SLIGHTLY DEGRADED COMPARED TO ABOVE BECAUSE OF SELF-HEATING OF THE LT1037 UNDER LOAD. Infrared Detector Preamplifier 10 100 F + 2N2219A 267 * 100 392 * PHOTOCONDUCTIVE 2 ...

Page 13

... 3.4k Q8 – 17k Q5 Q9 Q10 – V NONINVERTING Q1A INPUT (+) 3 Q1B Q13 2 INVERTING INPUT (– 110pF FOR LT1007 C1 = 12pF FOR LT1037 0.01 F 100k 0.033 F OUTPUT 1007/37 TA06 8 450 A 3.4k 17k 1.2k 1.2k 130pF Q17 Q19 Q20 Q2A Q2B + V Q22 Q11 Q15 Q12 Q16 240 A ...

Page 14

... LT1007/LT1037 PACKAGE DESCRIPTION 0.040 (1.016) MAX SEATING PLANE 0.010 – 0.045* (0.254 – 1.143) 45 TYP 0.027 – 0.034 (0.686 – 0.864) 0.110 – 0.160 (2.794 – 4.064) INSULATING STANDOFF 0.045 – 0.068 (1.143 – 1.727) FULL LEAD OPTION 0.300 BSC (0.762 BSC) 0.008 – ...

Page 15

... TYP 0.016 – 0.050 0.014 – 0.019 (0.406 – 1.270) (0.355 – 0.483) TYP LT1007/LT1037 5 4 0.130 0.005 (3.302 0.127) 0.125 0.020 (3.175) MIN (0.508) MIN 0.018 0.003 (0 ...

Page 16

... REDUCED SIGNAL ACCURATELY. www.linear.com 7 6 OUTPUT 0V TO 10V 301k* GAIN 499 * TRIM 50k 1007/37 TA09 COMMENTS Lowest Noise 0.85nV/ Hz 0.002% THD, Max Noise 1.2mV/ Hz Similar to LT1007 Similar to LT1037 sn100737 100737fbs LT/CPI 1101 1.5K REV B • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1985 ...

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