Overview
The AD8034ARZ, produced by Analog Devices Inc., is a dual operational amplifier that belongs to the FastFET™ family. These voltage feedback amplifiers feature FET inputs, offering ease of use and excellent performance. The AD8034 is particularly noted for its high speed, low noise, and wide supply voltage range, making it suitable for a variety of applications. The use of JFET devices in the high voltage XFCB process enhances the amplifier's performance, providing low input bias current and high bandwidth.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| −3 dB Bandwidth (G = +1, VOUT = 0.2 V p-p) | TA = 25°C, VS = ±5 V, RL = 1 kΩ | 65 | 80 | MHz | |
| −3 dB Bandwidth (G = +2, VOUT = 0.2 V p-p) | TA = 25°C, VS = ±5 V, RL = 1 kΩ | 30 | MHz | ||
| Slew Rate (25% to 75%) | G = +2, VOUT = 4 V step | 55 | 80 | V/μs | |
| Input Noise Voltage | f = 100 kHz | 11 nV/√Hz | |||
| Input Noise Current | f = 100 kHz | 0.7 fA/√Hz | |||
| Supply Voltage Range | 5 | 24 | V | ||
| Quiescent Current per Amplifier | TA = 25°C, VS = 5 V | 3.3 | 3.5 | mA | |
| Output Voltage Swing | RL = 1 kΩ | ±4.75 | ±4.95 | V | |
| Output Short-Circuit Current | 40 | mA |
Key Features
- High Speed: 80 MHz bandwidth and 80 V/μs slew rate, making it suitable for high-frequency applications.
- Low Noise: Input noise voltage of 11 nV/√Hz and input noise current of 0.7 fA/√Hz at 100 kHz.
- Wide Supply Voltage Range: Operates from 5 V to 24 V, allowing for flexibility in various power supply configurations.
- Rail-to-Rail Output: Ensures maximum output voltage swing, close to the supply rails.
- Low Input Bias Current: Due to the use of JFET devices, the input bias current is significantly reduced.
- High Common-Mode Rejection Ratio (CMRR): Above 90 dB, ensuring good rejection of common-mode signals.
- Small Packaging: Available in 8-lead SOIC, 8-lead SOT-23, and 5-lead SC70 packages, suitable for compact designs.
Applications
- Instrumentation: Ideal for precision measurement and signal conditioning due to its low noise and high accuracy.
- Filters: Can be used in active filter designs requiring high bandwidth and low distortion.
- Level Shifting: Suitable for level shifting applications where input and output voltage levels need to be adjusted.
- Buffering: Acts as a buffer amplifier to isolate the input signal from the output load, maintaining signal integrity.
Q & A
- What is the bandwidth of the AD8034ARZ?
The AD8034ARZ has a bandwidth of up to 80 MHz for a gain of +1 and 30 MHz for a gain of +2.
- What is the typical slew rate of the AD8034ARZ?
The typical slew rate is 80 V/μs for a gain of +2.
- What is the input noise voltage of the AD8034ARZ?
The input noise voltage is 11 nV/√Hz at 100 kHz.
- What is the supply voltage range for the AD8034ARZ?
The supply voltage range is from 5 V to 24 V.
- Does the AD8034ARZ have rail-to-rail output?
Yes, the AD8034ARZ has rail-to-rail output, ensuring maximum output voltage swing close to the supply rails.
- What are the typical packaging options for the AD8034ARZ?
The AD8034ARZ is available in 8-lead SOIC, 8-lead SOT-23, and 5-lead SC70 packages).
- What are some common applications of the AD8034ARZ?
Common applications include instrumentation, filters, level shifting, and buffering).
- What is the quiescent current per amplifier for the AD8034ARZ?
The quiescent current per amplifier is typically 3.3 mA to 3.5 mA).
- Does the AD8034ARZ have high common-mode rejection ratio (CMRR)?
Yes, the CMRR is above 90 dB, ensuring good rejection of common-mode signals).
- What is the output short-circuit current of the AD8034ARZ?
The output short-circuit current is 40 mA).
