Overview
The AD827SQ, produced by Analog Devices Inc., is a high-speed, low-power dual operational amplifier. It is a dual version of the industry-standard AD847 op-amp, offering high performance at a low cost. The AD827SQ is designed to operate over a wide range of supply voltages, from ±5 V to ±15 V, and is particularly suited for applications requiring fast settling times and low noise.
This amplifier achieves a 50 MHz unity-gain bandwidth and a 300 V/µs slew rate, making it ideal for demanding video applications and high-speed data conversion systems. Its low input offset voltage and high common-mode rejection ratio ensure good DC performance and minimal noise feedthrough from power supplies.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 2 |
| Gain Bandwidth Product (GBP) | 50 MHz |
| Slew Rate (SR) | 300 V/µs |
| Settling Time | 120 ns to 0.1% |
| Common Mode Rejection Ratio (CMRR) | 80 dB (minimum) |
| Input Offset Voltage (Vos) | 2 mV (maximum) |
| Input Voltage Noise Density | 15 nV/√Hz |
| Supply Voltage Range | ±5 V to ±15 V |
| Operating Temperature Range | -55°C to +125°C |
| Package Types | 8-lead plastic mini-DIP, cerdip, 20-lead LCC, 16-lead SOIC |
Key Features
- High Speed: 50 MHz unity-gain bandwidth and 300 V/µs slew rate.
- Low Power: Only 10 mA total supply current for both amplifiers.
- Excellent Video Performance: Less than 0.04% differential gain and 0.19° differential phase errors at 4.4 MHz.
- Good DC Performance: 2 mV maximum input offset voltage and 15 mV/°C input offset voltage drift.
- Unlimited Capacitive Load Drive: Capable of driving unlimited capacitive loads.
- High Common-Mode Rejection Ratio: Minimum of 80 dB.
- Low Noise: 15 nV/√Hz input voltage noise density.
- Multiple Package Options: Available in 8-lead plastic mini-DIP, cerdip, 20-lead LCC, and 16-lead SOIC packages.
Applications
- Video Applications: Ideal for driving coaxial cables with minimal differential gain and phase errors.
- High-Speed Data Conversion Systems: Serves as an input buffer for 8-bit to 10-bit A/D converters and as an output amplifier for high-speed D/A converters.
- Multistage Active Filters: Suitable due to its 50 MHz unity-gain bandwidth.
- Precision Instrumentation and Signal Conditioning: Used in applications requiring high common-mode rejection, low offset voltage, and low noise.
- Medical Instruments, Industrial Control Systems, and Aerospace/Defense Applications: Ideal for environments requiring robust performance and reliability.
Q & A
- What is the gain bandwidth product of the AD827SQ?
The gain bandwidth product of the AD827SQ is 50 MHz.
- What is the slew rate of the AD827SQ?
The slew rate of the AD827SQ is 300 V/µs.
- What is the settling time of the AD827SQ?
The settling time of the AD827SQ is 120 ns to 0.1%.
- What is the input offset voltage of the AD827SQ?
The input offset voltage of the AD827SQ is 2 mV maximum.
- What is the common-mode rejection ratio of the AD827SQ?
The common-mode rejection ratio of the AD827SQ is a minimum of 80 dB.
- What are the typical supply voltage ranges for the AD827SQ?
The AD827SQ operates over a supply voltage range of ±5 V to ±15 V.
- What are the available package types for the AD827SQ?
The AD827SQ is available in 8-lead plastic mini-DIP, cerdip, 20-lead LCC, and 16-lead SOIC packages.
- Is the AD827SQ suitable for video applications?
Yes, the AD827SQ is ideal for video applications due to its excellent video performance with less than 0.04% differential gain and 0.19° differential phase errors.
- Can the AD827SQ drive unlimited capacitive loads?
Yes, the AD827SQ can drive unlimited capacitive loads.
- What are some common applications of the AD827SQ?
The AD827SQ is commonly used in high-speed data conversion systems, multistage active filters, precision instrumentation, and signal conditioning.
