Overview
The AD8684ARZ-REEL is a quad low power, high speed JFET operational amplifier produced by Analog Devices Inc. This device is designed for applications requiring low power consumption and high precision. The AD8684 features a JFET input stage, which ensures a very low input bias current, making it ideal for use with high source impedance sources. It is unity-gain stable and can drive higher capacity loads, delivering excellent dynamic response over a wide range of conditions.
Key Specifications
| Parameter | Typical | Maximum | Conditions |
|---|---|---|---|
| Supply Current per Amplifier | 210 μA | 250 μA | VO = 0 V, −40°C ≤ TA ≤ +85°C |
| Input Bias Current | 6 pA | 20 pA | −40°C ≤ TA ≤ +85°C |
| Input Offset Voltage | 0.35 mV | 1 mV @ 25°C, 3 mV @ −40°C to +85°C | |
| Common-Mode Rejection Ratio (CMRR) | 90 dB | 70 dB @ −40°C to +85°C | −11 V ≤ VCM ≤ +15 V |
| Slew Rate | 9 V/μs | 7 V/μs @ −40°C to +85°C | RL = 10 kΩ |
| Gain Bandwidth Product (GBP) | 3.5 MHz | ||
| Output Voltage High (VOH) | 13.5 V | 13.9 V @ RL = 10 kΩ | |
| Output Voltage Low (VOL) | −13.9 V | −13.5 V @ RL = 10 kΩ | |
| Supply Voltage Range | ±4.5 V to ±18 V |
Key Features
- Low supply current: 250 μA per amplifier maximum
- High slew rate: 9 V/μs typical
- Bandwidth: 3.5 MHz typical
- Low offset voltage: 1 mV maximum @ 25°C
- Low input bias current: 20 pA maximum @ 25°C
- High common-mode rejection ratio (CMRR): 90 dB typical
- Fast settling time: 1.6 μs to 0.01%
- Unity-gain stable and capable of driving higher capacity loads
- Robust design suitable for harsh environments, including industrial and automotive applications
Applications
The AD8684ARZ-REEL is ideal for various applications requiring low power consumption and high precision, such as:
- Portable and battery-powered devices due to its low quiescent current
- Industrial and automotive systems where reliability in harsh environments is crucial
- High source impedance sources due to its low input bias current
- Audio and signal processing applications requiring high slew rates and bandwidth
Q & A
- What is the typical supply current per amplifier for the AD8684ARZ-REEL?
The typical supply current per amplifier is 210 μA.
- What is the maximum input bias current for the AD8684ARZ-REEL?
The maximum input bias current is 20 pA at 25°C and 125 pA over the full temperature range.
- What is the common-mode rejection ratio (CMRR) of the AD8684ARZ-REEL?
The CMRR is typically 90 dB.
- What is the slew rate of the AD8684ARZ-REEL?
The slew rate is typically 9 V/μs.
- What is the gain bandwidth product (GBP) of the AD8684ARZ-REEL?
The GBP is typically 3.5 MHz.
- Is the AD8684ARZ-REEL unity-gain stable?
- What is the operating temperature range for the AD8684ARZ-REEL?
The operating temperature range is −40°C to +85°C.
- What are the typical output voltage ranges for the AD8684ARZ-REEL?
The typical output voltage ranges are 13.5 V high and −13.9 V low at RL = 10 kΩ.
- Is the AD8684ARZ-REEL RoHS compliant?
- What are some common applications for the AD8684ARZ-REEL?
