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LT1792IS8

Description
Low Noise, Precision, JFET Input Op Amp
CategoryAnalog mixed-signal IC    Amplifier circuit   
File Size174KB,12 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Parametric Compare View All

LT1792IS8 Overview

Low Noise, Precision, JFET Input Op Amp

LT1792IS8 Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?incompatible
Parts packaging codeSOIC
package instructionSOP, SOP8,.25
Contacts8
Manufacturer packaging codeS8
Reach Compliance Code_compli
ECCN codeEAR99
Amplifier typeOPERATIONAL AMPLIFIER
ArchitectureVOLTAGE-FEEDBACK
Maximum average bias current (IIB)0.004 µA
Maximum bias current (IIB) at 25C0.0008 µA
Nominal Common Mode Rejection Ratio98 dB
frequency compensationYES
Maximum input offset current (IIO)0.008 µA
Maximum input offset voltage3700 µV
JESD-30 codeR-PDSO-G8
JESD-609 codee0
length4.9 mm
low-biasYES
low-dissonanceNO
Humidity sensitivity level1
Negative supply voltage upper limit-20 V
Nominal Negative Supply Voltage (Vsup)-15 V
Number of functions1
Number of terminals8
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeSOP8,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)235
power supply+-15 V
Certification statusNot Qualified
Maximum seat height1.75 mm
minimum slew rate2 V/us
Nominal slew rate3 V/us
Maximum slew rate5.4 mA
Supply voltage upper limit20 V
Nominal supply voltage (Vsup)15 V
surface mountYES
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperature20
Nominal Uniform Gain Bandwidth4300 kHz
Minimum voltage gain300000
width3.9 mm
Base Number Matches1
LT1792
Low Noise, Precision,
JFET Input Op Amp
FEATURES
s
s
s
s
s
s
DESCRIPTIO
100% Tested Low Voltage Noise: 6nV/√Hz Max
A Grade 100% Temperature Tested
Voltage Gain: 1.2 Million Min
Offset Voltage Over Temp: 800µV Max
Gain-Bandwidth Product: 5.6MHz Typ
Guaranteed Specifications with
±5V
Supplies
The LT
®
1792 achieves a new standard of excellence in
noise performance for a JFET op amp. The 4.2nV/√Hz
voltage noise combined with low current noise and
picoampere bias currents make the LT1792 an ideal choice
for amplifying low level signals from high impedance
capacitive transducers.
The LT1792 is unconditionally stable for gains of 1 or more,
even with load capacitances up to 1000pF. Other key
features are 600µV V
OS
and a voltage gain of over 4 million.
Each individual amplifier is 100% tested for voltage noise,
slew rate and gain bandwidth.
The design of the LT1792 has been optimized to achieve
true precision performance with an industry standard
pinout in the SO-8 package. Specifications are also pro-
vided for
±5V
supplies.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
s
s
s
s
s
s
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 APPLICATIO
Low Noise Hydrophone Amplifier with DC Servo
5V TO 15V
1kHz Input Noise Voltage Distribution
V
S
=
±15V
T
A
= 25°C
270 OP AMPS TESTED
LT1792
R2 C1*
200Ω
6
C2
0.47µF
R4
1M
R5
1M
OUTPUT
PERCENT OF UNITS (%)
–5V TO –15V
C
T
HYDRO-
PHONE
R6
100k
6
LT1097
3
R7
1M
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
R8
100M
+
+
3
R1*
100M
R3
3.9k
40
2
7
30
4
20
2
10
0
3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.2 5.4 5.6
INPUT VOLTAGE NOISE (nV/√Hz)
1792 TA02
1792 TA01
U
U
U
1

LT1792IS8 Related Products

LT1792IS8 LT1792IN8 LT1792AIN8 LT1792CS8 LT1792ACS8 LT1792CN8 LT1792AIS8 LT1792ACN8 LT1792
Description Low Noise, Precision, JFET Input Op Amp Low Noise, Precision, JFET Input Op Amp Low Noise, Precision, JFET Input Op Amp Low Noise, Precision, JFET Input Op Amp Low Noise, Precision, JFET Input Op Amp Low Noise, Precision, JFET Input Op Amp Low Noise, Precision, JFET Input Op Amp Low Noise, Precision, JFET Input Op Amp Low Noise, Precision, JFET Input Op Amp
Brand Name Linear Technology Linear Technology Linear Technology Linear Technology Linear Technology Linear Technology Linear Technology Linear Technology -
Is it Rohs certified? incompatible incompatible incompatible incompatible incompatible incompatible incompatible incompatible -
Parts packaging code SOIC DIP DIP SOIC SOIC DIP SOIC DIP -
package instruction SOP, SOP8,.25 DIP, DIP8,.3 DIP, DIP8,.3 0.150 INCH, PLASTIC, SO-8 SOP, SOP8,.25 DIP, DIP8,.3 SOP, SOP8,.25 DIP, DIP8,.3 -
Contacts 8 8 8 8 8 8 8 8 -
Manufacturer packaging code S8 N N S8 S8 N S8 N -
Reach Compliance Code _compli _compli _compli _compli _compli _compli _compli _compli -
ECCN code EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 -
Amplifier type OPERATIONAL AMPLIFIER OPERATIONAL AMPLIFIER OPERATIONAL AMPLIFIER OPERATIONAL AMPLIFIER OPERATIONAL AMPLIFIER OPERATIONAL AMPLIFIER OPERATIONAL AMPLIFIER OPERATIONAL AMPLIFIER -
Architecture VOLTAGE-FEEDBACK VOLTAGE-FEEDBACK VOLTAGE-FEEDBACK VOLTAGE-FEEDBACK VOLTAGE-FEEDBACK VOLTAGE-FEEDBACK VOLTAGE-FEEDBACK VOLTAGE-FEEDBACK -
Maximum average bias current (IIB) 0.004 µA 0.004 µA 0.004 µA 0.0018 µA 0.0018 µA 0.0018 µA 0.004 µA 0.0018 µA -
Maximum bias current (IIB) at 25C 0.0008 µA 0.0008 µA 0.0008 µA 0.0008 µA 0.0008 µA 0.0008 µA 0.0008 µA 0.0008 µA -
Nominal Common Mode Rejection Ratio 98 dB 98 dB 103 dB 99 dB 104 dB 99 dB 103 dB 104 dB -
frequency compensation YES YES YES YES YES YES YES YES -
Maximum input offset current (IIO) 0.008 µA 0.008 µA 0.003 µA 0.005 µA 0.005 µA 0.005 µA 0.003 µA 0.005 µA -
Maximum input offset voltage 3700 µV 3700 µV 1000 µV 2700 µV 800 µV 2700 µV 1000 µV 800 µV -
JESD-30 code R-PDSO-G8 R-PDIP-T8 R-PDIP-T8 R-PDSO-G8 R-PDSO-G8 R-PDIP-T8 R-PDSO-G8 R-PDIP-T8 -
JESD-609 code e0 e0 e0 e0 e0 e0 e0 e0 -
low-bias YES YES YES YES YES YES YES YES -
low-dissonance NO NO NO NO NO NO NO NO -
Humidity sensitivity level 1 1 1 1 1 1 1 1 -
Negative supply voltage upper limit -20 V -20 V -20 V -20 V -20 V -20 V -20 V -20 V -
Nominal Negative Supply Voltage (Vsup) -15 V -15 V -15 V -15 V -15 V -15 V -15 V -15 V -
Number of functions 1 1 1 1 1 1 1 1 -
Number of terminals 8 8 8 8 8 8 8 8 -
Maximum operating temperature 85 °C 85 °C 85 °C 70 °C 70 °C 70 °C 85 °C 70 °C -
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY -
encapsulated code SOP DIP DIP SOP SOP DIP SOP DIP -
Encapsulate equivalent code SOP8,.25 DIP8,.3 DIP8,.3 SOP8,.25 SOP8,.25 DIP8,.3 SOP8,.25 DIP8,.3 -
Package shape RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR -
Package form SMALL OUTLINE IN-LINE IN-LINE SMALL OUTLINE SMALL OUTLINE IN-LINE SMALL OUTLINE IN-LINE -
Peak Reflow Temperature (Celsius) 235 NOT SPECIFIED NOT SPECIFIED 235 235 NOT SPECIFIED 235 NOT SPECIFIED -
power supply +-15 V +-15 V +-15 V +-15 V +-15 V +-15 V +-15 V +-15 V -
Certification status Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified -
Maximum seat height 1.75 mm 3.937 mm 3.937 mm 1.75 mm 1.75 mm 3.937 mm 1.75 mm 3.937 mm -
minimum slew rate 2 V/us 2 V/us 2 V/us 2.1 V/us 2.1 V/us 2.1 V/us 2 V/us 2.1 V/us -
Nominal slew rate 3 V/us 3 V/us 3 V/us 3.1 V/us 3.1 V/us 3.1 V/us 3 V/us 3.1 V/us -
Maximum slew rate 5.4 mA 5.4 mA 5.4 mA 5.3 mA 5.3 mA 5.3 mA 5.4 mA 5.3 mA -
Supply voltage upper limit 20 V 20 V 20 V 20 V 20 V 20 V 20 V 20 V -
Nominal supply voltage (Vsup) 15 V 15 V 15 V 15 V 15 V 15 V 15 V 15 V -
surface mount YES NO NO YES YES NO YES NO -
Temperature level INDUSTRIAL INDUSTRIAL INDUSTRIAL COMMERCIAL COMMERCIAL COMMERCIAL INDUSTRIAL COMMERCIAL -
Terminal surface Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) -
Terminal form GULL WING THROUGH-HOLE THROUGH-HOLE GULL WING GULL WING THROUGH-HOLE GULL WING THROUGH-HOLE -
Terminal pitch 1.27 mm 2.54 mm 2.54 mm 1.27 mm 1.27 mm 2.54 mm 1.27 mm 2.54 mm -
Terminal location DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL -
Maximum time at peak reflow temperature 20 NOT SPECIFIED NOT SPECIFIED 20 20 NOT SPECIFIED 20 NOT SPECIFIED -
Nominal Uniform Gain Bandwidth 4300 kHz 4300 kHz 4300 kHz 4500 kHz 4500 kHz 4500 kHz 4300 kHz 4500 kHz -
Minimum voltage gain 300000 300000 400000 400000 500000 400000 400000 500000 -
width 3.9 mm 7.62 mm 7.62 mm 3.9 mm 3.9 mm 7.62 mm 3.9 mm 7.62 mm -
Base Number Matches 1 - - 1 1 1 - 1 -
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