LM346N ,Programmable Quad Operational AmplifierLM146LM246LM346PROGRAMMABLEQUAD BIPOLAR OPERATIONAL AMPLIFIER ■ PROGRAMMABLE ELECTRICAL CHARAC- ..
LM3475MF ,Hysteretic PFET Buck ControllerFeaturesn Easy to use control methodologyThe LM3475 is a hysteretic P-FET buck controller designedt ..
LM3475MFX ,Hysteretic PFET Buck Controllerapplications in a n 0.8V to V adjustable output rangeINverysmallSOT23-5package.Thehystereticcontrol ..
LM3475MFX ,Hysteretic PFET Buck ControllerPin DescriptionPin Name Pin Number DescriptionFB 1 Feedback input. Connect to a resistor divider be ..
LM3477AMM ,High Efficiency High-Side N-Channel Controller for Switching RegulatorPin DescriptionPin Name Pin Number DescriptionI 1 Current sense input pin. Voltage generated across ..
LM3477AMM ,High Efficiency High-Side N-Channel Controller for Switching RegulatorGeneral Descriptionn Frequency compensation optimized with a singleThe LM3477/Ais a high-side N-cha ..
LMP7721MA/NOPB ,3 Femtoampere Input Bias Current Precision Amplifier 8-SOIC -40 to 125Block Diagram... 16Information..... 264 Revision HistoryNOTE: Page numbers for previous revisions m ..
LMP8100AMA , Programmable Gain Amplifier
LMP8270MA ,Precision Amplifiers [Preliminary]Electrical Characteristics (Note 7)Unless otherwise specified, all limits guaranteed forT = 25˚C, V ..
LMP8270MAX ,Precision Amplifiers [Preliminary]Featuresn Typical Values, TA = 25˚C™The LMP 8270, LMP8275 are fixed gain differential ampli-fiers w ..
LMP8601MAX/NOPB ,60-V, Bidirectional, Low- or High-Side, Voltage Output Current Sensing Amplifier 8-SOIC -40 to 125Features 3 DescriptionThe LMP8601, LMP8602, LMP8603 (LMP860x) and1• Gain = 20x for LMP8601 and LMP8 ..
LMR12010XMK/NOPB ,SIMPLE SWITCHER? 20Vin, 1A Step-Down Voltage Regulator in SOT-23 6-SOT -40 to 125FEATURES DESCRIPTIONThe LMR12010 regulator is a monolithic, high23• Input Voltage Range of 3V to 20 ..
LM246N-LM346N
PROG AMPLIFIERS
PROGRAMMABLE ELECTRICAL CHARAC-TERISTICS� LOW SUPPLY CURRENT (250μA/amplifier)� GAIN-BANDWITH PRODUCT : 1MHz� LARGE DC VOLTAGE GAIN : 120dB� LOW NOISE VOLTAGE : 28nV/√Hz� WIDE POWER SUPPLY RANGE / ±1.5V to
±22V� CLASSE AB OUTPUT STAGE. NO
CROSS-OVER DISTORTION� OVERLOAD PROTECTION FOR INPUTS
AND OUTPUTS
DESCRIPTIONThe LM346 consists of four independent, high
gain, internally compensated, low power program-
mable amplifiers. Two external resistors (Rset ) al-
low the user to program the gain-bandwith prod-
uct, slew rate, supply current, input bias current,
input offset current and input noise. For example
the user can trade-off supply current for bandwith
or optimize noise figure for a given source resis-
tance. In a similar way other amplifier characteris-
tics can be tailored to the application.
Except for the two programming pins at the end of
the package the LM346 pin out is the same as the
LM324 and LM348.
PROGRAMMING EQUATIONS :Total supply current = 1mA (Iset = 10μA)
Gain bandwith product = 1MHz (Iset = 10μA)
Slew rate = 0.5V/μs (Iset = 10μΑ)
Input bias current ≈30nA (Iset = 10μΑ)set = current into pin 8 and pin 9 (see schematic
diagram)
ORDER CODE
PIN CONNECTIONS (top view)
LM146
LM246
LM346PROGRAMMABLE
QUAD BIPOLAR OPERATIONAL AMPLIFIER
LM146-LM246-LM346
SCHEMATIC DIAGRAM (1/4 LM146)
ABSOLUTE MAXIMUM RATINGS For supply voltage less than ±15V, the absolute maximum input voltage is equal to the supply voltage. Any of the amplifier outputs can be shorted to ground indefinitly; however more than one should not be simultaneously shorted as the maximum
junction will be exceeded.
LM146-LM246-LM346
ELECTRICAL CHARACTERISTICSVCC+ = ±15V, Iset = 10μA, Tamb = +25°C (unless otherwise specified)
LM146-LM246-LM346
PACKAGE MECHANICAL DATA16 PINS - PLASTIC PACKAGE
LM146-LM246-LM346
PACKAGE MECHANICAL DATA16 PINS - PLASTIC MICROPACKAGE
.
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its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information
previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or
systems without express written approval of STMicroelectronics.
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