Overview
The AD8669ARZ-REEL7 is a rail-to-rail output operational amplifier produced by Analog Devices Inc. This component is part of the AD8663/AD8667/AD8669 family, which utilizes Analog Devices' patented DigiTrim® trimming technique to achieve low offset voltage. The AD8669 is designed for precision and low noise applications, making it suitable for a wide range of electronic systems that require high accuracy and stability.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | VSY = 5 V, VCM = VSY/2, TA = 25°C | 40 | 175 | 300 | μV |
| Input Bias Current | IB | VSY = 5 V to 16 V, TA = 25°C | 0.3 | - | 120 | pA |
| Input Offset Current | IOS | VSY = 5 V to 16 V, TA = 25°C | 0.2 | - | 65 | pA |
| Input Voltage Range | - | VCM = 0.2 V to 14.5 V | 0.2 | - | 14.5 | V |
| Common-Mode Rejection Ratio | CMRR | VCM = 0.2 V to 14.5 V, TA = 25°C | 87 | 95 | 105 | dB |
| Supply Current per Amplifier | ISY | VOUT = VSY/2, TA = 25°C | 230 | 285 | 355 | μA |
| Slew Rate | SR | RL = 2 kΩ, CL = 20 pF | 0.3 | - | - | V/μs |
| Gain Bandwidth Product | GBP | CL = 20 pF | 540 | - | - | kHz |
| Phase Margin | ΦM | CL = 20 pF | 64 | - | - | Degrees |
| Voltage Noise Density | en | f = 1 kHz | 23 | - | - | nV/√Hz |
| Supply Voltage | - | - | - | - | 18 | V |
Key Features
- Low Offset Voltage: Maximum of 175 μV at VSY = 5 V, achieved through Analog Devices' patented DigiTrim® trimming technique.
- Low Supply Current: Maximum of 275 μA per amplifier.
- Single-Supply Operation: Supports supply voltages from 5 V to 16 V.
- Low Noise: Voltage noise density of 23 nV/√Hz at 1 kHz.
- Low Input Bias Current: As low as 0.3 pA.
- Unity-Gain Stable: Suitable for a variety of gain configurations.
- Rail-to-Rail Output: Ensures maximum output swing.
- High Common-Mode Rejection Ratio (CMRR): Up to 105 dB.
Applications
- Precision Instrumentation: Ideal for applications requiring high accuracy and low noise, such as precision amplifiers and buffers.
- Medical Devices: Suitable for medical equipment where low noise and high precision are critical.
- Aerospace and Defense: Used in various military and aerospace applications due to its robust performance over a wide temperature range.
- Industrial Automation: Applicable in control systems and sensors where reliability and precision are essential.
- Audio Equipment: Can be used in audio circuits requiring low noise and high fidelity.
Q & A
- What is the maximum offset voltage of the AD8669 at 5 V supply voltage?
The maximum offset voltage is 175 μV at VSY = 5 V.
- What is the typical supply current per amplifier for the AD8669?
The typical supply current per amplifier is 285 μA.
- What is the operating supply voltage range for the AD8669?
The AD8669 operates with supply voltages from 5 V to 16 V.
- What is the voltage noise density of the AD8669 at 1 kHz?
The voltage noise density is 23 nV/√Hz at 1 kHz.
- Is the AD8669 unity-gain stable?
Yes, the AD8669 is unity-gain stable.
- What is the common-mode rejection ratio (CMRR) of the AD8669?
The CMRR is up to 105 dB.
- What is the slew rate of the AD8669?
The slew rate is 0.3 V/μs with RL = 2 kΩ.
- What is the gain bandwidth product (GBP) of the AD8669?
The GBP is 540 kHz with CL = 20 pF.
- What is the phase margin of the AD8669?
The phase margin is 64 degrees with CL = 20 pF.
- What are the package options available for the AD8669?
The AD8669 is available in 14-Lead SOIC_N (R-14) and 14-Lead TSSOP (RU-14) packages.
