LT1113
Dual Low Noise,
Precision, JFET Input Op Amp
FeaTures
n
n
n
n
n
n
n
n
n
DescripTion
The
LT
®
1113
achieves a new standard of excellence in noise
performance for a dual JFET op amp. The 4.5nV/√Hz 1kHz
noise combined with low current noise and picoampere
bias currents makes the LT1113 an ideal choice for am-
plifying low level signals from high impedance capacitive
transducers.
The LT1113 is unconditionally stable for gains of 1 or
more, even with load capacitances up to 1000pF. Other
key features are 0.4mV V
OS
and a voltage gain of 4 mil-
lion. Each individual amplifier is 100% tested for voltage
noise, slew rate and gain bandwidth.
The design of the LT1113 has been optimized to achieve
true precision performance with an industry standard
pinout in the S0-8 package. A set of specifications are
provided for ± 5V supplies and a full set of matching speci-
fications are provided to facilitate the use of the LT1113 in
matching dependent applications such as instrumentation
amplifier front ends.
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and C-Load
is a trademark of Linear Technology Corporation. All other trademarks are the property of their
respective owners.
100% Tested Low Voltage Noise: 6nV/√Hz Max
SO-8 Package Standard Pinout
Voltage Gain: 1.2 Million Min
Offset Voltage: 1.5mV Max
Offset Voltage Drift: 15µV/°C Max
Input Bias Current, Warmed Up: 450pA Max
Gain Bandwidth Product: 5.6MHz Typ
Guaranteed Specifications with ± 5V Supplies
Guaranteed Matching Specifications
applicaTions
n
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Photocurrent Amplifiers
Hydrophone Amplifiers
High Sensitivity Piezoelectric Accelerometers
Low Voltage and Current Noise Instrumentation
Amplifier Front Ends
Two and Three Op Amp Instrumentation Amplifiers
Active Filters
Typical applicaTion
Low Noise Hydrophone Amplifier with DC Servo
R1*
100M
R3
3.9k
5V TO 15V
PERCENT OF UNITS (%)
1kHz Input Noise Voltage Distribution
40
V
S
= ±15V
T
A
= 25°C
138 S8
276 OP AMPS TESTED
R2 C1*
200
–5V TO –15V
HYDRO-
PHONE
7
DC OUTPUT ≤ 2.5mV FOR T
A
< 70°C
OUTPUT VOLTAGE NOISE = 128nV/√Hz AT 1kHz (GAIN = 20)
C1 ≈ C
T
≈ 100pF TO 5000pF; R4C2 > R8C
T
; *OPTIONAL
+
R7
1M
1/2
LT1113
–
C
T
R8
100M
+
3
–
2
8
1
C2
0.47µF
R4
1M
R5
1M
OUTPUT
30
1/2
LT1113
4
20
R6
100k
6
10
5
0
3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.2 5.4 5.6 5.8
INPUT VOLTAGE NOISE (nV/√Hz)
1113 TA02
1113 TA01
1113fc
For more information
www.linear.com/LT1113
1
LT1113
absoluTe MaxiMuM raTings
(Note 1)
Supply Voltage
–55°C to 105°C.................................................
±
20V
105°C to 125°C ..................................................
±16V
Differential Input Voltage.......................................
±
40V
Input Voltage (Equal to Supply Voltage) ................
±
20V
Output Short Circuit Duration .......................... 1 Minute
Storage Temperature Range.................. – 65°C to 150°C
Operating Temperature Range
LT1113AC/LT1113C (Note 2) ............ – 40°C to 85°C
LT1113AM/LT1113M
(OBSOLETE)
– 55°C to 125°C
Specified Temperature Range
LT1113AC/LT1113C (Note 3) ............ – 40°C to 85°C
LT1113AM/LT1113M
(OBSOLETE)
– 55°C to 125°C
Lead Temperature (Soldering, 10 sec).................. 300°C
pin conFiguraTion
TOP VIEW
OUT A 1
–IN A 2
+IN A 3
V
–
4
A
B
8 V
+
7 OUT B
6 –IN B
5 +IN B
OUT A 1
–IN A 2
+IN A 3
V
–
4
A
B
TOP VIEW
8 V
+
7 OUT B
6 –IN B
5 +IN B
N8 PACKAGE
8-LEAD PDIP
T
JMAX
= 150°C,
θ
JA
= 130°C/W (N8)
JB PACKAGE
8-LEAD CERDIP
T
JMAX
= 160°C,
θ
JA
= 100°C/W (J8)
Consider the N8 Package for Alternate Source
S8 PACKAGE
8-LEAD PLASTIC SO
T
JMAX
= 150°C,
θ
JA
= 190°C/W
OBSOLETE PACKAGE
orDer inForMaTion
LEAD FREE FINISH
LT1113ACN8#PBF
LT1113CN8#PBF
LT1113ACS8#PBF
LT1113AMJ8#PBF
LT1113MJ8#PBF
TAPE AND REEL
LT1113ACN8#TRPBF
LT1113CN8#TRPBF
LT1113CS8#TRPBF
LT1113AMJ8#TRPBF
LT1113MJ8#TRPBF
PART MARKING
1113ACN8
1113CN8
1113
1113AMJ8
1113MJ8
PACKAGE DESCRIPTION
8-Lead PDIP
8-Lead PDIP
8-Lead Plastic SO
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
–40°C to 85°C
–55°C to 125°C
–55°C to 125°C
OBSOLETE PACKAGE
8-Lead CERDIP
8-Lead CERDIP
Consult LTC Marketing for parts specified with wider operating temperature ranges.
Consult LTC Marketing for information on nonstandard lead based finish parts.
For more information on lead free part markings, go to:
http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to:
http://www.linear.com/tapeandreel/
2
1113fc
For more information
www.linear.com/LT1113
LT1113
elecTrical characTerisTics
SYMBOL PARAMETER
V
OS
I
OS
I
B
e
n
Input Offset Voltage
Input Offset Current
Input Bias Current
Input Noise Voltage
Input Noise Voltage Density
i
n
R
IN
Input Noise Current Density
Input Resistance
Differential Mode
Common Mode
Input Capacitance
Input Voltage Range (Note 7)
Common Mode Rejection Ratio
V
CM
= –10V to 13V
V
S
= ±15V, V
CM
= 0V, T
A
= 25°C, unless otherwise noted.
LT1113AM/AC
LT1113M/C
MIN
TYP
0.50
0.55
35
320
2.4
6.0
17
4.5
10
10
11
10
11
10
10
14
27
13.0
–10.5
82
13.5
–11.0
95
6.0
MAX
1.8
2.0
150
480
UNITS
mV
mV
pA
pA
µV
P-P
nV/√Hz
nV/√Hz
fA/√Hz
Ω
Ω
Ω
pF
pF
V
V
dB
1.5
1.7
100
450
MIN
TYP
0.40
0.45
30
300
2.4
17
4.5
10
10
11
10
11
10
10
14
27
13.0
–10.5
85
13.5
–11.0
98
MAX
CONDITIONS (Note 4)
V
S
= ±5V
Warmed Up (Note 5)
Warmed Up (Note 5)
0.1Hz to 10Hz
f
O
= 10Hz
f
O
= 1000Hz
f
O
= 10Hz, f
O
= 1000Hz (Note 6)
V
CM
= –10V to 8V
V
CM
= 8V to 11V
V
S
= ±5V
C
IN
V
CM
CMRR
V
S
= ±15V, V
CM
= 0V, T
A
= 25°C, unless otherwise noted.
LT1113AM/AC
SYMBOL PARAMETER
PSRR
A
VOL
V
OUT
SR
GBW
t
S
Power Supply Rejection Ratio
Large-Signal Voltage Gain
Output Voltage Swing
Slew Rate
Gain Bandwidth Product
Settling Time
Channel Separation
I
S
∆V
OS
∆I
B+
∆CMRR
∆PSRR
Supply Current per Amplifier
V
S
= ±5V
Offset Voltage Match
Noninverting Bias Current Match Warmed Up (Note 5)
Common Mode Rejection Match (Note 11)
Power Supply Rejection Match
(Note 11)
81
82
CONDITIONS
V
S
=
±
4.5V to
±
20V
V
O
=
±12V,
R
L
= 10k
V
O
=
±10V,
R
L
= 1k
R
L
= 10k
R
L
= 1k
R
L
≥ 2k (Note 9)
f
O
= 100kHz
0.01%, A
V
= + 1, R
L
= 1k,
C
L
≤
1000pF, 10V Step
f
O
= 10Hz, V
O
= ±10V, R
L
= 1k
MIN
86
1200
600
±13.5
±12.0
2.3
4.0
TYP
100
4800
4000
±13.8
±13.0
3.9
5.6
4.2
130
5.3
5.3
0.8
10
94
95
6.25
6.20
2.5
80
78
80
MAX
MIN
83
1000
500
±13.0
±11.5
2.3
4.0
LT1113M/C
TYP
98
4500
3000
±13.8
±13.0
3.9
5.6
4.2
126
5.3
5.3
0.8
10
94
95
6.50
6.45
3.3
120
MAX
UNITS
dB
V/mV
V/mV
V
V
V/µs
MHz
µs
dB
mA
mA
mV
pA
dB
dB
1113fc
For more information
www.linear.com/LT1113
3
LT1113
elecTrical characTerisTics
SYMBOL PARAMETER
V
OS
∆V
OS
∆Temp
I
OS
I
B
V
CM
CMRR
PSRR
A
VOL
V
OUT
SR
GBW
I
S
∆V
OS
∆I
B
+
The
l
denotes specifications which apply over the temperature range
0°C ≤ T
A
≤ 70°C. V
S
= ±15V, V
CM
= 0V, unless otherwise noted. (Note 12)
LT1113AC
CONDITIONS (Note 4)
V
S
= ± 5V
(Note 8)
l
l
l
l
l
l
l
LT1113C
MAX
2.1
2.3
15
350
1200
12.9
–10.0
79
81
800
400
±12.7
±11.3
1.7
3.2
6.35
6.30
3.5
300
74
77
MIN
TYP
0.7
0.8
8
55
700
13.4
–10.8
94
97
3400
2400
±13.5
±12.7
3.7
4.5
5.3
5.3
0.9
35
93
93
6.55
6.50
4.5
400
MAX
2.5
2.7
20
450
1600
UNITS
mV
mV
µV/°C
pA
pA
V
V
dB
dB
V/mV
V/mV
V
V
V/µs
MHz
mA
mA
mV
pA
dB
dB
MIN
TYP
0.6
0.7
7
50
600
Input Offset Voltage
Average Input Offset
Voltage Drift
Input Offset Current
Input Bias Current
Input Voltage Range
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
Output Voltage Swing
Slew Rate
Gain Bandwidth Product
Supply Current per Amplifier
Offset Voltage Match
Noninverting Bias Current Match
Common Mode Rejection Match
Power Supply Rejection Match
12.9
–10.0
81
83
900
500
±13.2
±11.7
2.1
3.2
13.4
–10.8
97
99
3600
2600
±13.5
±12.7
3.7
4.5
5.3
5.3
0.9
30
V
CM
= –10V to 12.9V
V
S
= ± 4.5V to ±20V
V
O
= ±12V, R
L
= 10k
V
O
= ±10V, R
L
= 1k
R
L
= 10k
R
L
= 1k
R
L
≥ 2k (Note 9)
f
O
= 100kHz
V
S
= ± 5V
l
l
l
l
l
l
l
l
l
l
l
l
∆CMRR
∆PSRR
(Note 11)
(Note 11)
l
l
76
79
93
93
The
l
denotes specifications which apply over the temperature range –40°C ≤ T
A
≤ 85°C. V
S
= ±15V, V
CM
= 0V,
unless otherwise noted. (Note 10)
LT1113AC
SYMBOL PARAMETER
V
OS
∆V
OS
∆Temp
I
OS
I
B
V
CM
CMRR
PSRR
A
VOL
V
OUT
SR
GBW
Input Offset Voltage
Average Input Offset
Voltage Drift
Input Offset Current
Input Bias Current
Input Voltage Range
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
Output Voltage Swing
Slew Rate
Gain Bandwidth Product
V
CM
= –10V to 12.6V
V
S
= ± 4.5V to ±20V
V
O
= ±12V, R
L
= 10k
V
O
= ±10V, R
L
= 1k
R
L
= 10k
R
L
= 1k
R
L
≥ 2k
f
O
= 100kHz
CONDITIONS (Note 4)
V
S
= ± 5V
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
LT1113C
MAX
2.4
2.6
15
700
3000
12.6
–10.0
78
79
750
300
±12.5
±11.0
1.6
2.9
MIN
TYP
0.8
0.9
8
90
1800
13.0
–10.5
93
96
3000
2000
±12.5
±12.0
3.5
4.3
MAX
2.8
3.0
20
1000
5000
UNITS
mV
mV
µV/°C
pA
pA
V
V
dB
dB
V/mV
V/mV
V
V
V/µs
MHz
1113fc
MIN
TYP
0.7
0.8
7
80
1750
12.6
–10.0
80
81
850
400
±13.0
±11.5
2.0
2.9
13.0
–10.5
96
98
3300
2200
±12.5
±12.0
3.5
4.3
4
For more information
www.linear.com/LT1113
LT1113
The
l
denotes specifications which apply over the temperature range
–40°C ≤ T
A
≤ 85°C. V
S
= ±15V, V
CM
= 0V, unless otherwise noted. (Note 10)
LT1113AC
SYMBOL PARAMETER
I
S
∆V
OS
∆I
B+
∆CMRR
∆PSRR
Supply Current per Amplifier
Offset Voltage Match
Noninverting Bias Current Match
Common Mode Rejection Match
Power Supply Rejection Match
(Note 11)
(Note 11)
CONDITIONS (Note 4)
V
S
= ± 5V
l
l
l
l
l
l
elecTrical characTerisTics
LT1113C
MAX
6.35
6.30
4.4
600
73
75
MIN
TYP
5.30
5.25
1.0
55
93
92
MAX
6.55
6.50
5.1
900
UNITS
mA
mA
mV
pA
dB
dB
MIN
TYP
5.30
5.25
1.0
50
76
77
93
92
The
l
denotes specifications which apply over the temperature range –55°C ≤ T
A
≤ 125°C. V
S
= ±15V, V
CM
= 0V,
unless otherwise noted. (Note 12)
LT1113AM
SYMBOL PARAMETER
Input Offset Voltage
V
OS
∆V
OS
∆Temp
I
OS
I
B
V
CM
CMRR
PSRR
A
VOL
V
OUT
SR
GBW
I
S
∆V
OS
∆I
B+
∆CMRR
∆PSRR
Average Input Offset
Voltage Drift
Input Offset Current
Input Bias Current
Input Voltage Range
Common Mode Rejection Ratio
Power Supply Rejection Ratio
Large-Signal Voltage Gain
Output Voltage Swing
Slew Rate
Gain Bandwidth Product
Supply Current Per Amplifier
Offset Voltage Match
Noninverting Bias Current Match
Common Mode Rejection Match
Power Supply Rejection Match
(Note 11)
(Note 11)
V
CM
= –10V to 12.6V
V
S
= ± 4.5V to ±20V
V
O
= ±12V, R
L
= 10k
V
O
= ±10V, R
L
= 1k
R
L
= 10k
R
L
= 1k
R
L
≥ 2k (Note 9)
f
O
= 100kHz
V
S
= ± 5V
CONDITIONS (Note 4)
V
S
= ± 5V
(Note 8)
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
LT1113M
MAX
2.7
2.8
12
15
50
12.6
–10.0
77
78
700
300
±12.5
±11.0
1.6
2.2
6.35
6.30
5.0
12
73
74
MIN
TYP
0.9
0.9
8
1.0
27
13.0
–10.4
92
95
2500
1000
±12.5
±12.0
3.3
3.4
5.30
5.25
1.0
2.0
92
91
6.55
6.50
5.5
20
MAX
3.3
3.4
15
25
70
UNITS
mV
mV
µV/°C
nA
nA
V
V
dB
dB
V/mV
V/mV
V
V
V/µs
MHz
mA
mA
mV
nA
dB
dB
MIN
TYP
0.8
0.8
5
0.8
25
12.6
–10.0
79
80
800
400
±13.0
±11.5
1.9
2.2
13.0
–10.4
95
97
2700
1500
±12.5
±12.0
3.3
3.4
5.30
5.25
1.0
1.8
75
76
92
91
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2:
The LT1113C is guaranteed functional over the Operating
Temperature Range of –40°C to 85°C. The LT1113M is guaranteed
functional over the Operating Temperature Range of – 55°C to 125°C.
Note 3:
The LT1113C is guaranteed to meet specified performance from
0°C to 70°C. The LT1113C is designed, characterized and expected to
meet specified performance from –40°C to 85°C but is not tested or QA
sampled at these temperatures. For guaranteed I grade parts, consult the
factory. The LT1113M is guaranteed to meet specified performance from
–55°C to 125°C.
Note 4:
Typical parameters are defined as the 60% yield of parameter
distributions of individual amplifiers, i.e., out of 100 LT1113s (200 op
amps) typically 120 op amps will be better than the indicated specification.
Note 5:
Warmed-up I
B
and I
OS
readings are extrapolated to a chip temperature
of 50°C from 25°C measurements and 50°C characterization data.
Note 6:
Current noise is calculated from the formula:
i
n
= (2qI
B
)
1/2
where q = 1.6
•
10
–19
coulomb. The noise of source resistors up to 200M
swamps the contribution of current noise.
1113fc
For more information
www.linear.com/LT1113
5
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