| Allicdata Part #: | 296-9552-5-ND |
| Manufacturer Part#: |
LM348D |
| Price: | $ 0.36 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | Texas Instruments |
| Short Description: | IC OPAMP GP 1MHZ 14SOIC |
| More Detail: | General Purpose Amplifier 4 Circuit 14-SOIC |
| DataSheet: |  LM348D Datasheet/PDF |
| Quantity: | 1000 |
| 1 +: | $ 0.33390 |
| 10 +: | $ 0.28602 |
| 100 +: | $ 0.21344 |
| 500 +: | $ 0.16771 |
| 1000 +: | $ 0.12959 |
Specifications
| Voltage - Input Offset: | 1mV |
| Base Part Number: | LM348 |
| Supplier Device Package: | 14-SOIC |
| Package / Case: | 14-SOIC (0.154", 3.90mm Width) |
| Mounting Type: | Surface Mount |
| Operating Temperature: | 0°C ~ 70°C |
| Voltage - Supply, Single/Dual (±): | 8 V ~ 36 V, ±4 V ~ 18 V |
| Current - Output / Channel: | 25mA |
| Current - Supply: | 2.4mA |
| Series: | -- |
| Current - Input Bias: | 30nA |
| Gain Bandwidth Product: | 1MHz |
| Slew Rate: | 0.5 V/µs |
| Output Type: | -- |
| Number of Circuits: | 4 |
| Amplifier Type: | General Purpose |
| Part Status: | Active |
| Packaging: | Tube |
Description
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The LM348D is a monolithic integrated circuit which lies within the Linear - Amplifiers - Instrumentation, OP Amps, and Buffer Amps category. Developed by Texas Instruments, the device is essentially an operational amplifier that comes with four independent and high-performance amplifiers and wide bandwidths. As a result, the LM348D ideally serves applications that involve signal condition adjustments and biasing. This article will analyze the effective application fields of the mentioned IC as well as its working principle. One major role of the LM348D is as an amplifier and buffer, enabling signal measurements and conditioning in various electronic circuits. Specifically, the IC can be used to construct filters and gain amplifiers. Operational amplifiers are gaining increasingly wide acceptance in signal conditioning applications. Thanks to the four independent operational amplifiers, the LM348D is well suited for applications involving precision rectification, inversion, and other signal alterations. In connection with precision rectification, it can also be used for peak-to-peak detection. Moreover, the amplifiers serve as significantly low-noise buffer circuits. The device also comes with an active pullup and pulldown device, removing the load from optocouplers or isolators. The LM348D’s versatility and usefulness are furthered with its superb characteristics: a wide power supply range, low noise, and ideal offset voltage. The integral components boast a gain band-width of 3 MHz, input offset voltage of 1mV, input offset current of 15nA, and a power supply voltage range from 10V to 52V. Moreover, the LM348D has superior power supply rejection ratio (PSRR) of 70dB, presence of differential input as well as common-mode rejection ratio (CMRR) of 70dB, low saturation voltage of 6.3mV, low temperature drift of 4nV/°C, and low supply current of 200μA. The LM348D boasts a wide application scope due to its superior characteristics and ergonomic design. It can be applied in two-wire or four-wire control systems, such as thermostats or thermostat controllers, and also used in high-precision temperature control systems or main regulators that require switching power supply or direct current loads. In addition, the LM348D can be utilized in low energy precision instrumentation and active filter applications which involve both voltage as well as current. In line with - as well as well in contrast to - D/A converters, the device also serves relay interface circuits, voltage regulators and rectifiers, modems, and data acquisitions.The LM348D is a negative-input operational amplifier, which means its output is guaranteed even when an input is negative. In context of other operational amplifiers, the LM348D works differently. Its basic working principle relies on the signal amplification and a negative feedback which is interconnected with the input. When the signal is applied, either from the negative or the positive input, it is conducted to the amplifier. The amplified signal then progresses onward, which enables the negative feedback to happen. The negative feedback is imperative in controlling the signal’s gain, and thus the device is said to be an open-loop system. The ratio of output to input is calculated in form of a gain figure, which depicts how much the output has been amplified. It then gets compared against the feedback signal which originates from the output as well as is received by the negative input terminal. Every excess change in voltage is liable to influence the output, letting it assume its original value. To sum up, an LM348D is a monolithic integrated circuit which serves multiple roles including signal measurements and conditioning, signal alteration, and gain amplifying. The IC is incredibly advantageous since it offers a wide power supply range, low noise, ideal offset voltage, and gain band-width of 3,000Hz, input offset voltage of 1mV, and input offset current of 15nA. Moreover, it is applicable in D/A conversions, thermostats, active filter applications, and relays. The LM348D serves as an ideal negative-input operational amplifier, where the signal’s gain is managed by negative feedback.
The specific data is subject to PDF, and the above content is for reference
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