Overview
The AD8627AKSZ-REEL is a precision JFET input operational amplifier produced by Analog Devices Inc. This amplifier is known for its low power consumption, rail-to-rail output, and high precision characteristics. It is particularly suited for applications requiring low input bias current and high accuracy over a wide temperature range.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Offset Voltage | VOS | −40°C < TA < +85°C | 0.05 | 0.5 | 1.2 | mV |
| Input Bias Current | IB | −40°C < TA < +85°C | 0.25 | 1 | 60 | pA |
| Input Offset Current | IOS | −40°C < TA < +85°C | 0.5 | 25 | pA | |
| Input Voltage Range | 0 | 3 | V | |||
| Common-Mode Rejection Ratio | CMRR | VCM = 0 V to 2.5 V | 66 | 87 | dB | |
| Large Signal Voltage Gain | AVO | RL = 10 kΩ, VO = 0.5 V to 4.5 V | 100 | 230 | V/mV | |
| Offset Voltage Drift | ∆VOS/∆T | −40°C < TA < +85°C | 2.5 | µV/°C | ||
| Output Voltage High | VOH | IL = 2 mA, −40°C < TA < +85°C | 4.90 | 4.92 | V | |
| Output Voltage Low | VOL | IL = 2 mA, −40°C < TA < +85°C | 0.075 | 0.08 | V | |
| Output Current | IOUT | ±10 | mA | |||
| Power-Supply Rejection Ratio | PSRR | VS = 5 V to 26 V | 80 | 104 | dB | |
| Supply Current/Amplifier | ISY | −40°C < TA < +85°C | 630 | 785 | 800 | µA |
| Slew Rate | SR | 5 | V/µs | |||
| Gain Bandwidth Product | GBP | 5 | MHz | |||
| Phase Margin | ØM | 60 | Degrees | |||
| Voltage Noise (peak-to-peak) | en | 0.1 Hz to 10 Hz | 1.9 | µV p-p | ||
| Voltage Noise Density | en | f = 1 kHz | 17.5 | nV/√Hz | ||
| Current Noise Density | in | f = 1 kHz | 0.4 | fA/√Hz | ||
| Channel Separation | Cs | f = 1 kHz | 104 | dB |
Key Features
- Low Power Consumption: The AD8627 operates with a supply current of 630 µA to 785 µA per amplifier, making it suitable for power-sensitive applications.
- Rail-to-Rail Output: The amplifier provides rail-to-rail output, ensuring maximum signal swing and minimizing distortion.
- High Precision: With an offset voltage as low as 0.05 mV and a drift of 2.5 µV/°C, the AD8627 is ideal for precision applications.
- Low Input Bias Current: The input bias current is as low as 0.25 pA, which is beneficial for high-impedance sources.
- High Common-Mode Rejection Ratio (CMRR): The CMRR of 66 dB to 87 dB ensures good rejection of common-mode signals.
- Wide Temperature Range: Fully specified over the industrial temperature range of −40°C to +85°C.
Applications
- Precision Filters: The 5 MHz bandwidth and low offset voltage make the AD8627 suitable for precision filters.
- Single-Supply Systems: Ideal for use in single-supply systems with ASICs and other wide output swing devices.
- Medical Equipment: Its high precision and low noise characteristics make it suitable for medical equipment and diagnostic devices.
- Industrial Control Systems: Used in various industrial control systems where high accuracy and reliability are required.
- Aerospace and Defense: The wide temperature range and high reliability make it a candidate for aerospace and defense applications.
Q & A
- What is the typical supply current of the AD8627?
The typical supply current of the AD8627 is 785 µA per amplifier. - What is the offset voltage of the AD8627?
The offset voltage of the AD8627 is typically 0.5 mV, with a maximum of 1.2 mV over the temperature range of −40°C to +85°C. - What is the common-mode rejection ratio (CMRR) of the AD8627?
The CMRR of the AD8627 is between 66 dB and 87 dB. - What are the available package options for the AD8627?
The AD8627 is available in 5-lead SC70 and 8-lead SOIC surface-mount packages. - What is the slew rate of the AD8627?
The slew rate of the AD8627 is 5 V/µs. - What is the gain bandwidth product (GBP) of the AD8627?
The GBP of the AD8627 is 5 MHz. - Is the AD8627 RoHS compliant?
Yes, the AD8627 is RoHS compliant. - What is the operating temperature range of the AD8627?
The AD8627 is fully specified over the industrial temperature range of −40°C to +85°C. - What are some typical applications of the AD8627?
The AD8627 is typically used in precision filters, single-supply systems, medical equipment, industrial control systems, and aerospace and defense applications. - What is the phase margin of the AD8627?
The phase margin of the AD8627 is 60 degrees.
