
Allicdata Part #: | OPA695IDG4-ND |
Manufacturer Part#: |
OPA695IDG4 |
Price: | $ 2.21 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC OPAMP CFA 1.7GHZ 8SOIC |
More Detail: | Current Feedback Amplifier 1 Circuit 8-SOIC |
DataSheet: | ![]() |
Quantity: | 1000 |
225 +: | $ 2.00368 |
Voltage - Input Offset: | 300µV |
Base Part Number: | OPA695 |
Supplier Device Package: | 8-SOIC |
Package / Case: | 8-SOIC (0.154", 3.90mm Width) |
Mounting Type: | Surface Mount |
Operating Temperature: | -40°C ~ 85°C |
Voltage - Supply, Single/Dual (±): | 5 V ~ 12 V, ±2.5 V ~ 6 V |
Current - Output / Channel: | 120mA |
Current - Supply: | 12.9mA |
Series: | -- |
Current - Input Bias: | 20µA |
-3db Bandwidth: | 1.7GHz |
Slew Rate: | 4300 V/µs |
Output Type: | -- |
Number of Circuits: | 1 |
Amplifier Type: | Current Feedback |
Part Status: | Active |
Packaging: | Tube |
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Introduction
OPA695IDG4 is a high-performance, low power, rail-to-rail output amplifiers. It is designed for instrumentation, low voltage, and rail-to-rail bipolar applications. This device offers rail-to-rail output and excellent linearity, making it an ideal choice for use in instrumentation and data acquisition systems. This paper will discuss the application fields and working principle of OPA695IDG4.
Application Fields
OPA695IDG4 is a high-performance, low power amplifier that is suitable for use in instrumentation and data acquisition systems. The amplifier\'s rail-to-rail output and excellent linearity make it perfect for use in low-voltage, rail-to-rail bipolar applications, such as ADC and DAC buffer circuits, transimpedance amplifiers, and low-noise circuitry. Additionally, the amplifier is suitable for driving low-power active filters, such as audio and video equalizers. It is also used in current measurement applications, such as current integrators and low-dropout (LDO) regulators.
The OPA695IDG4 is also well-suited for applications with high dynamic range, such as sensor and photocell amplifiers, power measurement circuits, and high-speed links. Its low power consumption and wide supply range make it ideal for portable applications, such as battery-powered medical instruments. Finally, the amplifier\'s high gain and low input bias current are well-suited for medical instrumentation, such as ultrasound and pressure measurements.
Working Principle
OPA695IDG4 utilizes bipolar technology for operation. The amplifier uses several bipolar junctions to achieve high output voltage swings. A BJT is the amplifier\'s basic building block and its input and output connections are configured using emitter followers. The emitter followers are used to achieve an increased voltage gain with low input bias current. The amplifier\'s high gain is achieved by using a differential input stage with a common-mode feedback loop. The input differential amplifier amplifies the difference between two input signals, while the common-mode feedback loop ensures that the output level is in the voltage range of the power supply.
Once the output voltage level has been set, the amplifier\'s output stage produces the required output signal. The output stage is configured using push-pull BJTs. These BJTs are connected in a bridge configuration, which allows the output to swing rail-to-rail. The amplifier also uses an output buffer to improve the output current drive capability. Finally, the amplifier also has several protective and monitor features, such as thermal protection, output short-circuit protection, and under- and over-voltage protection.
Conclusion
OPA695IDG4 is a high-performance, low power, rail-to-rail output amplifier designed for use in instrumentation, low voltage, and rail-to-rail bipolar applications. The amplifier\'s rail-to-rail output, excellent linearity, low power consumption and wide supply range make it an excellent choice for a variety of applications. It utilizes bipolar technology, with input and output components configured using emitter followers, push-pull BJTs, and a differential input stage with a common-mode feedback loop. The amplifier also has several protective and monitoring features to ensure reliable operation.
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