Overview
The AD847AR from Analog Devices Inc. is a high-speed, low-power monolithic operational amplifier (op amp) designed to offer superior AC and DC performance. This amplifier is part of the AD847 series, which is known for its high bandwidth and low power consumption, making it suitable for a variety of high-density applications. The AD847AR is fabricated using Analog Devices' proprietary complementary bipolar (CB) process, enabling the construction of pnp and npn transistors with similar f_Ts in the 600 MHz to 800 MHz region.
Key Specifications
| Parameter | Value |
|---|---|
| Amplifier Type | General Purpose |
| Case/Package | SOIC-8 |
| Common Mode Rejection Ratio | 78 dB |
| Contact Plating | Tin, Lead |
| Gain Bandwidth Product | 50 MHz |
| Input Bias Current | 3.3 uA |
| Input Capacitance | 1.5 pF |
| Input Offset Voltage (Vos) | 500 uV |
| Input Voltage Noise Density | 15 nV/sqrt Hz |
| Lead Free | Contains Lead |
| Max Dual Supply Voltage | 18 V |
| Min Dual Supply Voltage | 4.5 V |
| Max Operating Temperature | 85°C |
| Min Operating Temperature | -55°C |
| Max Power Dissipation | 800 mW |
| Max Supply Voltage | 36 V |
| Min Supply Voltage | 9 V |
| Number of Amplifiers | 1 |
| Number of Channels | 1 |
| Number of Circuits | 1 |
| Number of Elements | 1 |
| Number of Pins | 8 |
| Operating Supply Current | 5.3 mA |
| Output Current per Channel | 32 mA |
| Package Quantity | 2500 |
| Packaging | Tape and Reel |
| Power Dissipation | 800 mW |
| Power Supply Rejection Ratio (PSRR) | 86 dB |
| Quiescent Current | 4.8 mA |
| RoHS Compliant | No |
| Slew Rate | 300 V/µs |
| Unity Gain Bandwidth Product | 35 MHz |
| Voltage Gain | 70.88 dB |
Key Features
- High-speed operation with a gain bandwidth product of 50 MHz and a slew rate of 300 V/µs.
- Low power consumption with a quiescent current of 4.8 mA and an operating supply current of 5.3 mA.
- Excellent DC performance, including an open-loop gain of 3500 V/V (500 Ω load) and a low input offset voltage of 500 uV.
- High common-mode rejection ratio (CMRR) of 78 dB and power supply rejection ratio (PSRR) of 86 dB.
- Compact SOIC-8 package, making it suitable for high-density applications.
- Wide operating temperature range from -55°C to 85°C.
Applications
- Input buffer for flash A/D converters due to its full-power bandwidth of 12.7 MHz (5 V p-p with ± 5 V supplies).
- High-density applications such as multiple pole active filters.
- Output buffer for high-speed current-output D/A converters like the AD668.
- CCD imaging and other video speed applications, particularly in circuits requiring high speed and low power.
- General-purpose amplification in various electronic systems requiring high bandwidth and low noise.
Q & A
- What is the gain bandwidth product of the AD847AR?
The gain bandwidth product of the AD847AR is 50 MHz. - What is the input offset voltage of the AD847AR?
The input offset voltage of the AD847AR is 500 uV. - What is the maximum operating temperature of the AD847AR?
The maximum operating temperature of the AD847AR is 85°C. - Is the AD847AR RoHS compliant?
No, the AD847AR is not RoHS compliant. - What is the slew rate of the AD847AR?
The slew rate of the AD847AR is 300 V/µs. - What is the common-mode rejection ratio (CMRR) of the AD847AR?
The CMRR of the AD847AR is 78 dB. - What is the power supply rejection ratio (PSRR) of the AD847AR?
The PSRR of the AD847AR is 86 dB. - What is the typical quiescent current of the AD847AR?
The typical quiescent current of the AD847AR is 4.8 mA. - What is the maximum output current per channel of the AD847AR?
The maximum output current per channel of the AD847AR is 32 mA.[ - In what package is the AD847AR available?
The AD847AR is available in an SOIC-8 package.[
