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LT1490CS8#PBF

Description
IC opamp GP 200khz rro 8so
CategoryAnalog mixed-signal IC    Amplifier circuit   
File Size211KB,12 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Environmental Compliance
Download Datasheet Parametric View All

LT1490CS8#PBF Overview

IC opamp GP 200khz rro 8so

LT1490CS8#PBF Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?conform to
MakerLinear ( ADI )
Parts packaging codeSOIC
package instructionSOP, SOP8,.25
Contacts8
Manufacturer packaging codeS8
Reach Compliance Codecompliant
ECCN codeEAR99
Samacsys DescriptionLT1490CS8#PBF, Operational Amplifier 0.18MHz Rail-Rail 3 to 28V, 8-Pin SOIC
Amplifier typeOPERATIONAL AMPLIFIER
ArchitectureVOLTAGE-FEEDBACK
Maximum average bias current (IIB)0.008 µA
Nominal Common Mode Rejection Ratio98 dB
frequency compensationYES
Maximum input offset voltage1400 µV
JESD-30 codeR-PDSO-G8
JESD-609 codee3
length4.9 mm
low-biasNO
low-dissonanceNO
micropowerYES
Humidity sensitivity level1
Negative supply voltage upper limit-22 V
Nominal Negative Supply Voltage (Vsup)-15 V
Number of functions2
Number of terminals8
Maximum operating temperature70 °C
Minimum operating temperature
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeSOP8,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)260
powerNO
power supply3/5/+-15 V
Programmable powerNO
Certification statusNot Qualified
Maximum seat height1.75 mm
minimum slew rate0.031 V/us
Nominal slew rate0.07 V/us
Maximum slew rate0.17 mA
Supply voltage upper limit22 V
Nominal supply voltage (Vsup)15 V
surface mountYES
technologyBIPOLAR
Temperature levelCOMMERCIAL
Terminal surfaceMatte Tin (Sn)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
Nominal Uniform Gain Bandwidth200 kHz
Minimum voltage gain75000
broadbandNO
width3.9 mm
LT1490/LT1491
Dual and Quad
Micropower Rail-to-Rail
Input and Output Op Amps
FEATURES
s
s
s
s
s
s
s
s
s
s
s
s
s
DESCRIPTIO
Rail-to-Rail Input and Output
Single Supply Input Range: – 0.4V to 44V
Micropower: 50µA/Amplifier Max
µ
MSOP Package
Specified on 3V, 5V and
±15V
Supplies
High Output Current: 20mA
Output Drives 10,000pF with Output Compensation
Reverse Battery Protection to 18V
No Supply Sequencing Problems
High Voltage Gain: 1500V/mV
High CMRR: 98dB
No Phase Reversal
Gain Bandwidth Product: 200kHz
APPLICATIO S
s
s
s
s
s
Battery- or Solar-Powered Systems
Portable Instrumentation
Sensor Conditioning
Supply Current Sensing
Battery Monitoring
Micropower Active Filters
4mA to 20mA Transmitters
, LTC and LT are registered trademarks of Linear Technology Corporation.
The dual LT
®
1490 and quad LT1491 op amps operate on all
single and split supplies with a total voltage of 2V to 44V
drawing only 40µA of quiescent current per amplifier. These
amplifiers are reverse supply protected; they draw no current
for reverse supply up to 18V. The input range of the LT1490/
LT1491 includes both supplies and the output swings to both
supplies. Unlike most micropower op amps, the LT1490/
LT1491 can drive heavy loads; their rail-to-rail outputs drive
20mA. The LT1490/LT1491 are unity-gain stable and drive all
capacitive loads up to 10,000pF when optional 0.22µF and
150Ω compensation is used.
The LT1490/LT1491 have a unique input stage that oper-
ates and remains high impedance when above the positive
supply. The inputs take 44V both differential and common
mode even when operating on a 3V supply. Built-in resis-
tors protect the inputs for faults below the negative supply
up to 22V. There is no phase reversal of the output for inputs
22V below V
or 44V above V
, independent of V
+
.
The LT1490 dual op amp is available in the 8-pin MSOP,
SO and PDIP packages. The quad LT1491 is available in
the 14-pin SO and PDIP packages.
For new designs it is recommended that the LT1490A/
LT1491A be used instead of the LT1490/LT1491. See the
LT1490A/LT1491A data sheet for details.
TYPICAL APPLICATIO
CHARGER
VOLTAGE
Battery Monitor
R
S
0.2Ω
I
BATT
RA
2k
R
A
'
2k
+
A
1/4 LT1491
Q1
2N3904
C
1/4 LT1491
+
R
B
2k
R
B
'
2k
LOAD
+
Q2
2N3904
B
1/4 LT1491
LOGIC HIGH (5V) = CHARGING
LOGIC LOW (0V) = DISCHARGING
+
V
BATT
= 12V
S1
R
G
10k
10k
D
1/4 LT1491
+
90.9k
I
BATT
=
V
V
OUT
=
OUT
AMPS
(R
S
)(R
G
/R
A
)(GAIN) GAIN
S1 = OPEN, GAIN = 1
S1 = CLOSED, GAIN = 10
R
A
= R
B
V
S
= 5V, 0V
U
LOGIC
V
OUT
1490/91 TA01
U
U
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