Overview
The AD712AQ, produced by Analog Devices Inc., is a high-speed, precision monolithic operational amplifier. It offers exceptional performance at competitive prices, making it an ideal choice for various high-performance applications. The AD712AQ features very low offset voltage and offset voltage drift, achieved through advanced laser wafer trimming technology. This technology ensures superior AC and DC performance, making the amplifier suitable for active filter applications, buffers for digital-to-analog converters (DACs) and analog-to-digital converters (ADCs), and high-speed integrators.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Offset Voltage (Initial) | 0.3 | - | 3 | mV |
| Input Offset Voltage Drift | - | - | 5 | µV/°C |
| Slew Rate | 16 | - | - | V/µs |
| Settling Time (to ±0.01%) | 1 | - | - | µs |
| Unity Gain Bandwidth | 3 | - | - | MHz |
| Open-Loop Gain | 400 | - | - | V/mV |
| Common-Mode Rejection Ratio (CMRR) | 76 | - | 100 | dB |
| Input Bias Current | 25 | - | 75 | pA |
| Supply Voltage | ±15 | - | ±18 | V |
| Operating Temperature Range | -40 | - | 85 | °C (Industrial Grade) |
Key Features
- Low Offset Voltage and Drift: The AD712AQ boasts a very low input offset voltage (maximum 3 mV for J grade) and low offset voltage drift (maximum 5 µV/°C for C grade), ensuring high precision in various applications.
- High Speed Performance: With a slew rate of 16 V/µs and a settling time of 1 µs to ±0.01%, this amplifier is ideal for high-speed applications such as DAC and ADC buffers and high-speed integrators.
- Excellent Noise Performance: The AD712AQ features low noise and high common-mode rejection ratio (CMRR), making it suitable for applications requiring high signal integrity.
- Multiple Package Options: Available in 8-lead PDIP, SOIC, CERDIP, and TO-99 metal can packages, as well as in chip form, providing flexibility in design and implementation.
- Extended Reliability Screening: PLUS screening includes 168-hour burn-in and other environmental and physical tests, ensuring high reliability over the specified temperature ranges.
Applications
- Active Filters: The superior AC and DC performance of the AD712AQ makes it suitable for active filter applications.
- DAC and ADC Buffers: Ideal for buffering 12-bit digital-to-analog converters (DACs) and analog-to-digital converters (ADCs) due to its high speed and precision.
- High-Speed Integrators: The high slew rate and fast settling time make the AD712AQ a good choice for high-speed integrator applications.
- Photo Diode Preamps: The excellent noise performance and low input current make it useful for photo diode preamplifier applications.
Q & A
- What is the typical input offset voltage of the AD712AQ?
The typical input offset voltage of the AD712AQ is 0.3 mV for the J grade and 0.1 mV for the C grade.
- What is the slew rate of the AD712AQ?
The slew rate of the AD712AQ is a minimum of 16 V/µs.
- How long does the AD712AQ take to settle to ±0.01%?
The AD712AQ settles to ±0.01% in 1 µs.
- What is the unity gain bandwidth of the AD712AQ?
The unity gain bandwidth of the AD712AQ is a minimum of 3 MHz.
- What are the available package options for the AD712AQ?
The AD712AQ is available in 8-lead PDIP, SOIC, CERDIP, TO-99 metal can packages, and in chip form.
- What is the operating temperature range for the industrial grade AD712AQ?
The operating temperature range for the industrial grade AD712AQ is -40°C to +85°C.
- What is the common-mode rejection ratio (CMRR) of the AD712AQ?
The CMRR of the AD712AQ is between 76 dB and 100 dB.
- What is the input bias current of the AD712AQ?
The input bias current of the AD712AQ is typically between 25 pA and 75 pA.
- Is the AD712AQ suitable for high-speed integrator applications?
Yes, the AD712AQ is suitable for high-speed integrator applications due to its high slew rate and fast settling time.
- Does the AD712AQ undergo extended reliability screening?
Yes, the AD712AQ can undergo PLUS screening, which includes 168-hour burn-in and other environmental and physical tests.
