Overview
The AD8034ARTZ-REEL from Analog Devices Inc. is a dual-channel, voltage feedback operational amplifier featuring FET inputs. This FastFET™ amplifier is designed to offer high performance, ease of use, and low cost. It is part of the AD8033/AD8034 series, where the AD8033 is a single amplifier and the AD8034 is a dual amplifier. These amplifiers are fabricated using Analog Devices' proprietary XFCB process, which incorporates JFET devices to achieve low input bias current, low distortion, 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 Overdrive Recovery Time | −6 V to +6 V input | 135 | ns | ||
| Output Overdrive Recovery Time | −3 V to +3 V input, G = +2 | 135 | ns | ||
| Settling Time to 0.1% | G = +2, VOUT = 2 V step | 95 | ns | ||
| Output Voltage Swing | VS = 5 V, RL = 1 kΩ | ±4.75 | ±4.95 | V | |
| Quiescent Current per Amplifier | VS = 5 V | 3.3 | 3.5 | mA | |
| Power Supply Range | 5 | 24 | V | ||
| Input Bias Current | 0.7 fA/√Hz (f = 100 kHz) | ||||
| Input Offset Voltage | 1 mV typical |
Key Features
- High Speed and Bandwidth: 80 MHz bandwidth and 80 V/μs slew rate, making it suitable for high-frequency applications.
- Low Noise: Low noise performance with 11 nV/√Hz and 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: Provides full output voltage swing, enhancing the dynamic range of the amplifier.
- Low Input Bias Current: Utilizes FET inputs to achieve very low input bias current.
- High Common-Mode Rejection Ratio (CMRR): CMRR above 90 dB, ensuring good rejection of common-mode signals.
- Low Power Consumption: Typical quiescent current of 3.3 mA per amplifier, making it power-efficient.
- No Phase Reversal: Ensures stable operation without phase reversal issues.
- Compact Packaging: Available in small packages such as SOT-23-8, SOIC-8, and SC70-5, suitable for space-constrained designs.
Applications
- Instrumentation: Suitable for various instrumentation applications due to its high accuracy and stability.
- Filters: Can be used in active filter designs requiring high bandwidth and low noise.
- Level Shifting: Ideal for level shifting applications where a wide supply voltage range is necessary.
- Buffering: Excellent for buffering signals in high-speed and low-noise environments.
Q & A
- What is the typical bandwidth of the AD8034 amplifier?
The typical bandwidth of the AD8034 amplifier is 80 MHz for a gain of +1 and 30 MHz for a gain of +2.
- What is the slew rate of the AD8034?
The slew rate of the AD8034 is typically 80 V/μs.
- What is the input bias current of the AD8034?
The input bias current of the AD8034 is very low, typically 0.7 fA/√Hz at 100 kHz.
- What is the operating supply voltage range of the AD8034?
The AD8034 operates from a supply voltage range of 5 V to 24 V.
- Does the AD8034 have rail-to-rail output capability?
- What are the common packaging options for the AD8034?
The AD8034 is available in packages such as SOT-23-8, SOIC-8, and SC70-5.
- What are some typical applications of the AD8034?
The AD8034 is typically used in instrumentation, filters, level shifting, and buffering applications.
- Does the AD8034 have a high common-mode rejection ratio (CMRR)?
- What is the quiescent current per amplifier for the AD8034?
The quiescent current per amplifier for the AD8034 is typically 3.3 mA.
- Is the AD8034 susceptible to phase reversal?
