LT1114Dual/Quad Low Power Precision, Picoamp Input Op Amps | Linear | 5 | Active | The LT1112 dual and LT1114 quad op amps achieve a new standard in combining low cost and outstanding precision specifications.The performance of the selected prime grades matches or exceeds competitive devices. In the design of the LT1112/LT1114 however, particular emphasis has been placed on optimizing performance in the low cost plastic and SO packages. For example, the 75µV maximum offset voltage in these low cost packages is the lowest on any dual or quad non-chopper op amp.The LT1112/LT1114 also provide a full set of matching specifications, facilitating their use in such matching dependent applications as two and three op amp instrumentation amplifiers.Another set of specifications is furnished at ±1V supplies. This, combined with the low 320µA supply current per amplifier, allows the LT1112/LT1114 to be powered by two nearly discharged AA cells.ApplicationsPicoampere/Microvolt InstrumentationTwo and Three Op Amp Instrumentation AmplifersThermocouple and Bridge AmplifiersLow Frequency Active FiltersPhoto Current AmplifiersBattery-Powered Systems |
LT1115Ultra-Low Noise, Low Distortion, Audio Op Amp | Integrated Circuits (ICs) | 2 | Active | The LT1115 is the lowest noise audio operational amplifier available. This ultralow noise performance (0.9nV/√Hzat 1kHz) is combined with high slew rates (>15V/µs) and very low distortion specifications.The RIAA circuit shown below using the LT1115 has very low distortion and little deviation from ideal RIAA response (see graph).ApplicationsHigh Quality Audio PreamplifiersLow Noise Microphone PreamplifiersVery Low Noise Instrumentation AmplifiersLow Noise Frequency SynthesizersInfrared Detector AmplifiersHydrophone AmplifiersLow Distortion Oscillators |
LT111612ns, Single Supply Ground-Sensing Comparator | Comparators | 3 | Active | The LT1116 is an ultra fast (12ns) comparator designed for sensing signals near the negative supply. The input common mode range extends from 2.5V below the positive supply down to the negative supply rail. Like the LT1016, this comparator is specifically designed to interface directly to TTL logic with complementary outputs. The comparator may operate from either a single 5V supply or dual ±5V supplies. Tight offset voltage specifications and high gain allow the LT1116 to be used in precision applications.The LT1116 is designed for improved speed and stability for a wide range of operating conditions. The output stage provides active drive in both directions for maximum speed into TTL logic or passive loads, yet it has minimal cross-conduction current. Unlike other fast comparators, the LT1116 remains stable even for slow transitions through the active region, which eliminates the need to specify a minimum input slew rate.The LT1116 has an internal, TTL compatible latch for retaining data at the outputs. The latch holds data as long as the latch pin is held high. Device parameters such as gain, offset, and negative power supply current are not significantly affected by variations in negative supply voltage.ApplicationsHigh Speed A/D ConvertersZero Crossing DetectorsCurrent Sense for Switching RegulatorsExtended Range V to F ConvertersFast Pulse Height/Width DiscriminatorsHigh Speed TriggersLine ReceiversHigh Speed Sampling Circuits |
LT1117800mA Low Dropout Positive Regulators Adjustable and Fixed 2.85V,3.3V, 5V | PMIC | 10 | Active | The LT1117 is a positive low dropout regulator designed to provide up to 800mA of output current. The device is available in an adjustable version and fixed output voltages of 2.85V, 3.3V and 5V. The 2.85V version is designed specifically to be used in Active Terminators for the SCSI bus. All internal circuitry is designed to operate down to 1V input to output differential. Dropout voltage is guaranteed at a maximum of 1.2V at 800mA, decreasing at lower load currents. On chip trimming adjusts the reference/output voltage to within ± 1%. Current limit is also trimmed in order to minimize the stress on both the regulator and the power source circuitry under overload conditions.The low profile surface mount SOT-223 package allows the device to be used in applications where space is limited. The LT1117 requires a minimum of 10μF of output capacitance for stability. Output capacitors of this size or larger are normally included in most regulator designs.Unlike PNP type regulators where up to 10% of the output current is wasted as quiescent current, the quiescent current of the LT1117 flows into the load, increasing efficiency.ApplicationsActive SCSI TerminatorsHigh Efficiency Linear RegulatorsPost Regulators for Switching SuppliesBattery Chargers5V to 3.3V Linear Regulators |
LT1118Low IQ, Low Dropout, 800mA, Source and Sink Regulators Adjustable and Fixed 2.5V, 2.85V, 5V Output | Power Management (PMIC) | 7 | Active | The LT1118 family of low dropout regulators has the unique capability of maintaining output regulation while sourcing or sinking load current. The 2.85V output voltage regulator is ideal for use as a Boulay termination of up to 27 SCSI data lines. The regulator maintains regulation while both sourcing and sinking current, enabling the use of active negation drivers for improved noise immunity on the data lines. Regulation of output voltage is maintained for TERMPWR voltages as low as 4.0V. When unloaded, quiescent supply current is a low 600µA, allowing continuous connection to the TERMPWR lines. An ultralow power shutdown mode is also available on the SO-8 version. In Shutdown the output is high impedance and supply current drops to less than 10µA.Current limits in both sourcing and sinking modes, plus on-chip thermal shutdown make the circuit tolerant of output fault conditions.The LT1118 is available in 3-lead SOT-223 and 8-lead SO packages.ApplicationsActive Negation SCSI TerminationsComputersDisk DrivesCD-ROMSupply Splitter |
LT1120AMicropower Regulator with Comparator and Shutdown | PMIC | 4 | Active | The LT1120 is a combination micropower positive regulator and free collector comparator on a single monolithic chip. With only 40µA supply current, the LT1120 can supply over 125mA of output current. Input voltage range is from 4.5V to 36V and dropout voltage is 0.6V at 125mA. Dropout voltage decreases with lower load currents. Also included on the chip is a class B output 2.5V reference that can either source or sink current. A shutdown pin allows logic shutdown of the output.The comparator can be used for system or battery monitoring. For example, the comparator can be used to warn of low system voltage. Frequency compensation of the comparator for amplifier applications can be obtained by adding external output capacitance.The 2.5V reference will source or sink current. This allows it to be used as a supply splitter or auxiliary output.No Load Quiescent CurrentLT112080uALT1120A30uAApplicationsBattery SystemsBattery-Backup SystemPortable TerminalsPortable InstrumentsMemory Keep-Alive |
LT1121Micropower Low Dropout Regulators with Shutdown | PMIC | 17 | Active | The LT1121/LT1121-3.3/LT1121-5 are micropower low dropout regulators with shutdown. These devices are capable of supplying 150mA of output current with a dropout voltage of 0.4V. Designed for use in battery-powered systems, the low quiescent current, 30µA operating and 16µA in shutdown, makes them an ideal choice. The quiescent current is well-controlled; it does not rise in dropout as it does with many other low dropout PNP regulators.Other features of the LT1121/LT1121-3.3/LT1121-5 include the ability to operate with very small output capacitors. They are stable with only 0.33µF on the output while most older devices require between 1µF and 100µF for stability. Small ceramic capacitors can be used, enhancing manufacturability. Also the input may be connected to ground or a reverse voltage without reverse current flow from output to input. This makes the LT1121 series ideal for backup power situations where the output is held high and the input is at ground or reversed. Under these conditions only 16µA will flow from the output pin to ground.ApplicationsLow Current RegulatorRegulator for Battery-Powered SystemsPost Regulator for Switching Supplies |
| Linear | 10 | Active | |
| Power Management (PMIC) | 3 | Active | |
| Amplifiers | 6 | Active | |
