Overview
The AD843SQ, produced by Analog Devices Inc., is a high-performance operational amplifier known for its wide bandwidth and fast settling time. This device is part of Analog Devices' family of wide bandwidth operational amplifiers, fabricated using the junction isolated complementary bipolar (CB) process. This process combines dc precision with wideband ac performance, making the AD843SQ ideal for various high-speed applications. The amplifier is available in several temperature grades, including commercial, industrial, and military, ensuring its suitability for a broad range of environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Unity Gain Bandwidth | 34 | MHz |
| Fast Settling Time (to 0.01% of final value for a 10V step) | 135 | ns |
| Slew Rate | 250 | V/μs |
| Input Offset Voltage (max) | 1 | mV |
| Input Bias Current (typ) | 0.6 | nA |
| Input Voltage Noise | 19 | nV/√Hz |
| Open Loop Gain | 30 V/mV | |
| Output Current (min) | 50 | mA |
| Supply Current (max) | 13 | mA |
| Operating Temperature Range | -55°C to +125°C (military grade) | |
| Package Types | 8-Pin Plastic Mini-DIP, Cerdip, 16-Pin SOIC, 20-Pin LCC, 12-Pin Hermetic Metal Can |
Key Features
- High bandwidth of 34 MHz and fast settling time of 135 ns to 0.01% for a 10V step, making it suitable for high-speed applications.
- High slew rate of 250 V/μs, ensuring excellent performance in high-speed sample-and-hold applications and high-speed integrators.
- No external compensation required, and stable over the full operating temperature range.
- Low input bias current of 0.6 nA and low input voltage noise of 19 nV/√Hz.
- Available in various temperature grades: commercial (0°C to +70°C), industrial (–40°C to +85°C), and military (–55°C to +125°C).
- Multiple package options including 8-Pin Plastic Mini-DIP, Cerdip, 16-Pin SOIC, 20-Pin LCC, and 12-Pin Hermetic Metal Can.
Applications
- High-speed sample-and-hold amplifiers.
- High-speed integrators.
- High bandwidth active filters.
- High frequency signal conditioning circuits.
Q & A
- What is the unity gain bandwidth of the AD843SQ?
The unity gain bandwidth of the AD843SQ is 34 MHz.
- What is the settling time of the AD843SQ for a 10V step to 0.01% of the final value?
The settling time is 135 ns.
- What is the slew rate of the AD843SQ?
The slew rate is 250 V/μs.
- What is the input bias current of the AD843SQ?
The input bias current is typically 0.6 nA.
- Does the AD843SQ require external compensation?
No, the AD843SQ does not require external compensation and remains stable over its full operating temperature range.
- What are the available package types for the AD843SQ?
The AD843SQ is available in 8-Pin Plastic Mini-DIP, Cerdip, 16-Pin SOIC, 20-Pin LCC, and 12-Pin Hermetic Metal Can packages.
- What are the typical applications of the AD843SQ?
Typical applications include high-speed sample-and-hold amplifiers, high-speed integrators, high bandwidth active filters, and high frequency signal conditioning circuits.
- What are the temperature ranges for the different grades of the AD843SQ?
The temperature ranges are: commercial (0°C to +70°C), industrial (–40°C to +85°C), and military (–55°C to +125°C).
- What is the maximum output current of the AD843SQ?
The maximum output current is 50 mA.
- What is the maximum supply current of the AD843SQ?
The maximum supply current is 13 mA.
