Lifecycle Status
PRODUCTION (Last Updated: 1 week ago)
Package / Case
Package / Case refers to the physical housing or enclosure that encapsulates an electronic component. It provides protection, facilitates handling, and enables electrical connections. The package type determines the component's size, shape, pin configuration, and mounting options. Common package types include DIP (dual in-line package), SOIC (small outline integrated circuit), and BGA (ball grid array). The package also influences the component's thermal and electrical performance.
SOIC
Number of Pins
Number of Pins: Indicates the number of electrical connections available on the component. These pins are used to connect the component to other components or circuits on a printed circuit board (PCB). The number of pins determines the functionality and connectivity options of the component. It is important to ensure that the component has the correct number of pins for the intended application.
8
Packaging
Tape & Reel (TR)
Max Operating Temperature
70°C
Min Operating Temperature
0°C
Number of Channels
Number of Channels refers to the number of independent signal paths within an electronic component. It indicates how many separate signals can be processed or transmitted simultaneously. For example, an audio amplifier with two channels can amplify two separate audio signals, while a multi-channel data converter can convert multiple analog signals into digital data. The number of channels is a crucial parameter for determining the component's functionality and application.
1
Number of Circuits
Number of Circuits refers to the number of independent signal paths within an electronic component. It indicates how many separate circuits or channels the component can handle simultaneously. For example, an operational amplifier with a Number of Circuits of 2 can amplify two separate input signals independently. This parameter is crucial for determining the component's functionality and its suitability for specific applications.
1
Operating Supply Current
Operating Supply Current is the amount of current drawn by an electronic component when it is operating under normal conditions. It is typically measured in milliamps (mA) or microamps (µA). The operating supply current is important because it can affect the power consumption of the component and the overall system. A higher operating supply current will result in higher power consumption, which can lead to overheating and reduced battery life.
4.2mA
Slew Rate
Slew rate is a measure of how quickly an electronic component's output voltage can change in response to a change in its input voltage. It is typically expressed in volts per microsecond (V/µs). A higher slew rate indicates that the component can respond more quickly to changes in its input voltage, which can be important in applications where fast signal processing is required.
3.4 V/μs
Common Mode Rejection Ratio
83 dB
Input Offset Voltage (Vos)
Input Offset Voltage (Vos) is a parameter that specifies the voltage difference between the non-inverting and inverting inputs of an operational amplifier (op-amp) when the output voltage is zero. It represents the amount of voltage that must be applied to the inputs to bring the output to zero. Vos is caused by mismatches in the internal transistors of the op-amp and can vary with temperature and other factors. A low Vos is desirable for precision applications where accurate signal processing is required.
800μV
Gain Bandwidth Product
4.2MHz
Power Supply Rejection Ratio (PSRR)
85dB
Max Dual Supply Voltage
20V
Min Dual Supply Voltage
5V
Nominal Gain Bandwidth Product
4.2MHz
RoHS Status
RoHS Compliant
Description
The LT1793 is a low-noise, picoampere bias current, JFET input operational amplifier. It offers exceptional noise performance with low voltage noise (6nV/√Hz) and extremely low current noise (0.8fA/√Hz), resulting in the lowest total noise for high impedance transducer applications. The very low input bias current (3pA typ) is maintained over the entire common mode range, providing an extremely high input resistance (10^13Ω). Combined with a very low input capacitance (1.5pF), this results in an extremely high input impedance, making the LT1793 ideal for amplifying low-level signals from high impedance transducers. The low input capacitance also ensures high gain linearity when buffering AC signals from high impedance transducers. The LT1793 is unconditionally stable for gains of 1 or more, even with 1000pF capacitive loads. Other key features include 250µV Vos and a voltage gain over 4 million. Each individual amplifier is 100% tested for voltage noise, slew rate (3.4V/us), and gain-bandwidth product (4.2MHz). Specifications at 5V supply operation are also provided.
Features
Input Bias Current, Warmed Up: 10pA Max (100% Tested)
Low Voltage Noise: 8nV/√Hz Max
A Grade 100% Temperature Tested
Offset Voltage Over Temp: 1mV Max
Input Resistance: 10^13Ω
Very Low Input Capacitance: 1.5pF
Voltage Gain: 1 Million Min
Gain-Bandwidth Product: 4.2MHz Typ
Guaranteed Specifications with 5V Supplies
Applications
Photocurrent Amplifiers
Hydrophone Amplifiers
High Sensitivity Piezoelectric Accelerometers
Low Voltage and Current Noise Instrumentation Amplifier Front Ends
Two and Three Op Amp Instrumentation Amplifiers
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