LM2900DR

Current - Input Bias:	30nA
Base Part Number:	LM2900
Supplier Device Package:	14-SOIC
Package / Case:	14-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply, Single/Dual (±):	4.5 V ~ 32 V, ±2.2 V ~ 16 V
Current - Output / Channel:	18mA
Current - Supply:	6.2mA
Series:	--
Gain Bandwidth Product:	2.5MHz
Slew Rate:	20 V/µs
Output Type:	--
Number of Circuits:	4
Amplifier Type:	General Purpose
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction to LM2900DRThe LM2900DR is an operational amplifier (op-amp) originally designed as a driver circuit for digital-to-analog converters. It was developed by National Semiconductors’ hybrid microcircuit department, in order to fulfill the need for a low cost, low power amplifier in instrumentation applications. Due to its versatility, high linearity, and low power consumption the LM2900DR has become a popular choice for instrumentation circuits and general-purpose analog circuits.Application FieldsThe LM2900DR can be used as either an instrumentation amplifier, as an op-amp, or as a buffer amp. As an instrumentation amplifier, the LM2900DR is able to sense and process multiple voltages simultaneously. This allows it to be used in applications such as medical instrumentation, audio mixing boards, and pH monitors. As an op-amp, it can be used to build circuits such as level detectors, voltage regulators, comparators, and integrators. It is also commonly used in active filters and voltage followers.As a buffer amp, the LM2900DR can be used to amplify weak signals that do not need to be amplified. This makes it useful for boosting signals in isolated lines, or for driving analog-to-digital converters. Working PrincipleTheworking principle of the LM2900DR is based on its differential input stage. This stage amplifies two input signals, while subtracting any potential noise, which allows it to accurately measure the difference between two inputs. The second stage then takes these amplified differences and amplifies them further, while also subtracting any potential noise. The result of these two stages is a low-noise, high-gain amplifier with excellent linearity. The gain of the LM2900DR can be adjusted by changing the value of a resistor connected between its two output terminals, allowing it to be used in a variety of applications. The LM2900DR is well suited for both low-frequency and high-frequency applications, as it has a wide bandwidth. This allows it to accurately measure and process signals from 0 Hz to 10 kHz. The LM2900DR is also very cost effective, as it only requires a few external components for operation. This makes it a popular choice for those looking for a low-cost amplifier for instrumentation and general-purpose applications.ConclusionThe LM2900DR is a versatile, low-cost op-amp that can be used as an instrumentation amplifier, an op-amp, or a buffer amp. It has a wide bandwidth, excellent linearity, and low-noise operation, making it well suited for a variety of applications. By changing the gain of the LM2900DR by adjusting a resistor, it can be used for both low- and high-frequency applications. It is also very cost effective, as it requires minimal external components for operation. This makes it a popular choice for those looking for an amplifier for instrumentation and general-purpose applications.

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