1
LT1007/LT1037
Low Noise, High Speed
Precision Operational Amplifiers
FEATURES
DESCRIPTIO
N
U
s
Guaranteed 4.5nV/
Hz 10Hz Noise
s
Guaranteed 3.8nV/
Hz 1kHz Noise
s
0.1Hz to 10Hz Noise, 60nV
P-P
Typical
s
Guaranteed 7 Million Min Voltage Gain, R
L
= 2k
s
Guaranteed 3 Million Min Voltage Gain, R
L
= 600
s
Guaranteed 25
V Max Offset Voltage
s
Guaranteed 0.6
V/
C Max Drift with Temperature
s
Guaranteed 11V/
s Min Slew Rate (LT1037)
s
Guaranteed 117dB Min CMRR
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 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.
TYPICAL APPLICATIO
N
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
Ultrapure 1kHz Sine Wave Generator
TIME (SEC)
0
2
4
6
8
10
VOLTAGE NOISE (20nV/DIV)
1007/37 TA02
s
Low Noise Signal Processing
s
Microvolt Accuracy Threshold Detection
s
Strain Gauge Amplifiers
s
Direct Coupled Audio Gain Stages
s
Sine Wave Generators
s
Tape Head Preamplifiers
s
Microphone Preamplifiers
APPLICATIO
N
S
U
1007/37 TA01
430
OUTPUT
C
C
R
R
6
2
3
#327 LAMP
+
LT1037
f =
1
2
RC
R = 1591.5
0.1%
C = 0.1
F
0.1%
TOTAL HARMONIC DISTORTION = < 0.0025%
NOISE = < 0.0001%
AMPLITUDE =
8V
OUTPUT FREQUENCY = 1.000kHz FOR VALUES GIVEN
0.4%
0.1Hz to 10Hz Noise
2
LT1007/LT1037
ABSOLUTE
M
AXI
M
U
M
RATINGS
W
W
W
U
PACKAGE/ORDER I
N
FOR
M
ATIO
N
W
U
U
Supply Voltage ......................................................
22V
Input Voltage ............................ Equal to Supply Voltage
Output Short-Circuit Duration .......................... Indefinite
Differential Input Current (Note 8) .....................
25mA
Storage Temperature Range ................. 65
C to 150
C
TOP VIEW
V
+
V
OS
TRIM
V
OS
TRIM
IN
OUT
NC
+IN
V
(CASE)
8
7
6
5
1
4
H PACKAGE
8-LEAD TO-5 METAL CAN
+
2
3
T
JMAX
= 150
C,
JA
= 150
C/ W,
JC
= 45
C/ W
1
2
3
4
8
7
6
5
TOP VIEW
V
OS
TRIM
V
OS
TRIM
V
+
OUT
NC
J8 PACKAGE
8-LEAD CERDIP
IN
+IN
V
+
N8 PACKAGE
8-LEAD PDIP
TOP VIEW
S8 PACKAGE
8-LEAD PLASTIC SO
1
2
3
4
8
7
6
5
V
OS
TRIM
V
OS
TRIM
V
+
OUT
NC
IN
+IN
V
+
T
JMAX
= 150
C,
JA
= 190
C/ W
ORDER PART NUMBER
ORDER PART NUMBER
ORDER PART NUMBER
1007
1007I
1037
1037I
ELECTRICAL CHARACTERISTICS
V
S
=
15V, T
A
= 25
C, unless otherwise noted.
LT1007ACJ8
LT1007ACN8
LT1007AMJ8
LT1007CJ8
LT1007CN8
LT1007IN8
LT1007MJ8
LT1037ACJ8
LT1037ACN8
LT1037AMJ8
LT1037CJ8
LT1037CN8
LT1037IN8
LT1037MJ8
LT1007ACH
LT1007AMH
LT1007CH
LT1007MH
LT1037ACH
LT1037AMH
LT1037CH
LT1037MH
LT1007AC/AM
LT1007C/I/M
LT1037AC/AM
LT1037C/I/M
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage
(Note 1)
10
25
20
60
V
V
OS
Long Term Input Offset
(Notes 2, 3)
0.2
1.0
0.2
1.0
V/Mo
Time
Voltage Stability
I
OS
Input Offset Current
7
30
12
50
nA
I
B
Input Bias Current
10
35
15
55
nA
e
n
Input Noise Voltage
0.1Hz to 10Hz (Notes 3, 5)
0.06
0.13
0.06
0.13
V
P-P
Input Noise Voltage Density
f
O
= 10Hz (Notes 3, 4)
2.8
4.5
2.8
4.5
nV/
Hz
f
O
= 1000Hz (Note 3)
2.5
3.8
2.5
3.8
nV/
Hz
i
n
Input Noise Current Density
f
O
= 10Hz (Notes 3, 6)
1.5
4.0
1.5
4.0
pA/
Hz
f
O
= 1000Hz (Notes 3, 6)
0.4
0.6
0.4
0.6
pA/
Hz
T
JMAX
= 150
C,
JA
= 100
C/ W (J8)
T
JMAX
= 100
C,
JA
= 130
C/ W (N8)
S8 PART MARKING
LT1007CS8
LT1007IS8
LT1037CS8
LT1037IS8
Lead Temperature (Soldering, 10 sec.)................. 300
C
Operating Temperature Range
LT1007/LT1037AC, C ............................. 0
C to 70
C
LT1007/LT1037I ............................... 40
C to 85
C
LT1007/LT1037AM, M ..................... 55
C to 125
C
3
LT1007/LT1037
ELECTRICAL CHARACTERISTICS
V
S
=
15V, T
A
= 25
C, unless otherwise noted.
LT1007AC/AM
LT1007C/I/M
LT1037AC/AM
LT1037C/I/M
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
Input Resistance, Common Mode
7
5
G
Input Voltage Range
11.0
12.5
11.0
12.5
V
CMRR
Common Mode Rejection Ratio
V
CM
=
11V
117
130
110
126
dB
PSRR
Power Supply Rejection Ratio
V
S
=
4V to
18V
110
130
106
126
dB
A
VOL
Large-Signal Voltage Gain
R
L
2k, V
O
=
12V
7.0
20.0
5.0
20.0
V/
V
R
L
1k, V
O
=
10V
5.0
16.0
3.5
16.0
V/
V
R
L
600
, V
O
=
10V
3.0
12.0
2.0
12.0
V/
V
V
OUT
Maximum Output Voltage Swing
R
L
2k
13.0
13.8
12.5
13.5
V
R
L
600
11.0
12.5
10.5
12.5
V
SR
Slew Rate
LT1007
R
L
2k
1.7
2.5
1.7
2.5
V/
s
LT1037
A
VCL
5
11
15
11
15
V/
s
GBW
Gain Bandwidth
LT1007
f
O
= 100kHz (Note 7)
5.0
8.0
5.0
8.0
MHz
Product
LT1037
f
O
= 10kHz (Note 7) (A
VCL
5)
45
60
45
60
MHz
Z
O
Open-Loop Output Resistance
V
O
= 0V, I
O
= 0
70
70
P
D
Power Dissipation
LT1007
80
120
80
140
mW
LT1037
80
130
85
140
mW
V
S
=
15V, 0
C
T
A
70
C, unless otherwise noted.
LT1007AC
LT1007C
LT1037AC
LT1037C
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage
(Note 1)
q
20
50
35
110
V
V
OS
Average Input Offset Drift
(Note 9)
q
0.2
0.6
0.3
1.0
V/
C
Temp
I
OS
Input Offset Current
q
10
40
15
70
nA
I
B
Input Bias Current
q
14
45
20
75
nA
Input Voltage Range
q
10.5
11.8
10.5
11.8
V
CMRR
Common Mode Rejection Ratio
V
CM
=
10.5V
q
114
126
106
120
dB
PSRR
Power Supply Rejection Ratio
V
S
=
4.5V to
18V
q
106
126
102
120
dB
A
VOL
Large-Signal Voltage Gain
R
L
2k, V
O
=
10V
q
4.0
18.0
2.5
18.0
V/
V
R
L
1k, V
O
=
10V
q
2.5
14.0
2.0
14.0
V/
V
V
OUT
Maximum Output Voltage Swing
R
L
2k
q
12.5
13.6
12.0
13.6
V
P
D
Power Dissipation
q
90
144
90
160
mW
4
LT1007/LT1037
ELECTRICAL CHARACTERISTICS
V
S
=
15V, 40
C
T
A
85
C, unless otherwise noted.
V
S
=
15V, 55
C
T
A
125
C, unless otherwise noted.
LT1007I/LT1037I
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage
(Note 1)
q
40
125
V
V
OS
Average Input Offset Drift
(Note 9)
q
0.3
1.0
V/
C
Temp
I
OS
Input Offset Current
q
20
80
nA
I
B
Input Bias Current
q
25
90
nA
Input Voltage Range
q
10
11.7
V
CMRR
Common Mode Rejection Ratio
V
CM
=
10.5V
q
105
120
dB
PSRR
Power Supply Rejection Ratio
V
S
=
4.5V to
18V
q
101
120
dB
A
VOL
Large-Signal Voltage Gain
R
L
2k, V
O
=
10V
q
2.0
15.0
V/
V
R
L
1k, V
O
=
10V
q
1.5
12.0
V/
V
V
OUT
Maximum Output Voltage Swing
R
L
2k
q
12.0
13.6
V
P
D
Power Dissipation
q
95
165
mW
LT1007AM/LT1037AM LT1007M/LT1037M
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
V
OS
Input Offset Voltage
(Note 1)
q
25
60
50
160
V
V
OS
Average Input Offset Drift
(Note 9)
q
0.2
0.6
0.3
1.0
V/
C
Temp
I
OS
Input Offset Current
q
15
50
20
85
nA
I
B
Input Bias Current
q
20
60
35
95
nA
Input Voltage Range
q
10.3
11.5
10.3
11.5
V
CMRR
Common Mode Rejection Ratio
V
CM
=
10.3V
q
112
126
104
120
dB
PSRR
Power Supply Rejection Ratio
V
S
=
4.5V to
18V
q
104
126
100
120
dB
A
VOL
Large-Signal Voltage Gain
R
L
2k, V
O
=
10V
q
3.0
14.0
2.0
14.0
V/
V
R
L
1k, V
O
=
10V
q
2.0
10.0
1.5
10.0
V/
V
V
OUT
Maximum Output Voltage Swing
R
L
2k
q
12.5
13.5
12.0
13.5
V
P
D
Power Dissipation
q
100
150
100
170
mW
The
q
denotes the specifications which apply over the full operating
temperature range.
For MIL-STD components, please refer to LTC 883C data sheet for test
listing and parameters.
Note 1: Input Offset Voltage measurements are performed by automatic
test equipment approximately 0.5 seconds after application of power. AM
and AC grades are guaranteed fully warmed up.
Note 2: Long Term Input Offset Voltage Stability refers to the average
trend line of Offset Voltage vs Time over extended periods after the first 30
days of operation. Excluding the initial hour of operation, changes in V
OS
during the first 30 days are typically 2.5
V. Refer to typical performance
curve.
Note 3: This parameter is tested on a sample basis only.
Note 4: 10Hz noise voltage density is sample tested on every lot. Devices
100% tested at 10Hz are available on request.
Note 5: See the test circuit and frequency response curve for 0.1Hz to
10Hz tester in the Applications Information section.
Note 6: See the test circuit for current noise measurement in the
Applications Information section.
Note 7: This parameter is guaranteed by design and is not tested.
Note 8: The inputs are protected by back-to-back diodes. Current limiting
resistors are not used in order to achieve low noise. If differential input
voltage exceeds
0.7V, the input current should be limited to 25mA.
Note 9: The Average Input Offset Drift performance is within the
specifications unnulled or when nulled with a pot having a range of 8k
to
20k
.
5
LT1007/LT1037
TYPICAL PERFOR
M
A
N
CE CHARACTERISTICS
U
W
VOLTAGE NOISE DENSITY (nV/
Hz)
0
NUMBER OF UNITS
140
120
100
80
60
40
20
0
1
5
7
1007/37 G01
4
9
10
2
3
6
8
V
S
=
15V
T
A
= 25
C
497 UNITS MEASURED
FROM SIX RUNS
FREQUENCY (Hz)
1
1
3
RMS VOLTAGE NOISE DENSITY (nV/
Hz)
10
30
100
10
1000
1007/37 G02
0.1
100
V
S
=
15V
T
A
= 25
C
1/f CORNER = 2Hz
MAXIMUM
TYPICAL
Voltage Noise vs Frequency
0.01Hz to 1Hz Peak-to-Peak Noise
TIME (SEC)
0
20
40
60
80
100
VOLTAGE NOISE (20nV/DIV)
1007/37 G04
FREQUENCY (Hz)
10
0.1
0.3
3
1
10
100
1k
10k
1007/37 G07
RMS NOISE DENSITY (pA/
Hz)
1/f CORNER = 120Hz
MAXIMUM
TYPICAL
TEMPERATURE (
C)
50
5
4
3
2
1
0
0
50
75
1007/37 G06
25
25
100
125
AT 10Hz
V
S
=
15V
AT 1kHz
RMS VOLTAGE NOISE DENSITY (nV/
Hz)
10Hz Voltage Noise Distribution
Total Noise vs Source Resistance
Voltage Noise vs Temperature
SOURCE RESISTANCE (k
)
0.1
1
10
100
1000
1
10
100
1007/37 G05
TOTAL NOISE DENSITY (nV/
Hz)
V
S
=
15V
T
A
= 25
C
SOURCE RESISTANCE = 2R
R
R
AT 1kHz
AT 10Hz
RESISTOR
NOISE ONLY
Current Noise vs Frequency
BANDWIDTH (kHz)
0.1
0.01
RMS VOLTAGE NOISE (
V)
0.1
1
10
1
10
100
1007/37 G08
Wideband Voltage Noise
(0.1Hz to Frequency Indicated)
SUPPLY VOLTAGE (
V)
0
5
4
3
2
1
0
20
1007/37 G09
5
10
15
25
RMS VOLTAGE NOISE DENSITY (nV/
Hz)
AT 10Hz
T
A
= 25
C
AT 1kHz
Voltage Noise vs Supply Voltage
0.02Hz to 10Hz RMS Noise. Gain = 50,000
(Measured on HP3582 Spectrum Analyzer)
MARKER AT 2Hz ( = 1/f CORNER) =
179
V/
Hz
50,000
nV
Hz
= 3.59
1007/37 G03
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