| Allicdata Part #: | ADA4891-2ARMZ-R7TR-ND |
| Manufacturer Part#: |
ADA4891-2ARMZ-R7 |
| Price: | $ 0.00 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | Analog Devices Inc. |
| Short Description: | IC OPAMP GP 240MHZ RRO 8MSOP |
| More Detail: | General Purpose Amplifier 2 Circuit Rail-to-Rail 8... |
| DataSheet: |  ADA4891-2ARMZ-R7 Datasheet/PDF |
| Quantity: | 10000 |
Specifications
| Voltage - Input Offset: | 2.5mV |
| Base Part Number: | ADA4891 |
| Supplier Device Package: | 8-MSOP |
| Package / Case: | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) |
| Mounting Type: | Surface Mount |
| Operating Temperature: | -40°C ~ 125°C |
| Voltage - Supply, Single/Dual (±): | 2.7 V ~ 5.5 V, ±1.35 V ~ 2.75 V |
| Current - Output / Channel: | 125mA |
| Current - Supply: | 4.4mA |
| Series: | -- |
| Current - Input Bias: | 2pA |
| -3db Bandwidth: | 240MHz |
| Slew Rate: | 210 V/µs |
| Output Type: | Rail-to-Rail |
| Number of Circuits: | 2 |
| Amplifier Type: | General Purpose |
| Part Status: | Active |
| Packaging: | Tape & Reel (TR) |
Description
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AD4891-2ARMZ-R7 is a two-channel operational amplifier that combines features such as high amplifier gain, low input bias current, wide bandwidth, and wide supply range. This op amp is well-suited for use in instrumentation amplifiers, buffer amplifiers, and other linear applications.
Instrumentation Amplifiers
Instrumentation amplifiers are used to amplify small signals that may be contaminated by false signals due to external interference, such as noise and electrical fields. These amplifiers are built from multiple op amps and use an input stage with high input impedance to reject these external signals, resulting in a purer output. The AD4891-2ARMZ-R7 is well-suited for use in instrumentation amplifiers due to its low input bias current and wide bandwidth.Buffer Amplifiers
Buffer amplifiers are used to provide isolation between two circuits, such as isolating a sensor from a signal processing system. They are also useful for providing a low-impedance source for wideband signals, allowing them to be transmitted over long distances. The high gain, wide bandwidth, and low input bias current of the AD4891-2ARMZ-R7 makes it well-suited for use as a buffer amplifier.Working Principle
The working principle of the AD4891-2ARMZ-R7 is based on feedback-controlled transimpedance gain architecture. The two transimpedance amplifier stages in the device are connected in series and each one is tailored for a different response. The first stage is designed to provide the higher gain, while the second stage is designed to provide a low-noise, low-distortion signal. The input signal is amplified using the two-stage architecture of the device and the output is delivered to the next stage in the signal chain. The built-in compensation network of the AD4891-2ARMZ-R7 ensures a consistent amplification and linearity even with large signal swings. The device is also capable of supplying a high output current, allowing it to drive large capacitive loads.Conclusion
The AD4891-2ARMZ-R7 is an ideal choice for use in instrumentation amplifiers, buffer amplifiers, and other linear applications. Its low input bias current and wide bandwidth make it well-suited for use in instrumentation amplifiers, and the high gain, wide bandwidth, and high output current make it ideal for use as a buffer amplifier. The two-stage feedback-controlled transimpedance gain architecture of the device ensures consistent and linear amplification.The specific data is subject to PDF, and the above content is for reference
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