Overview
The AD8664ARUZ is a precision, rail-to-rail output, single-supply operational amplifier produced by Analog Devices Inc. This amplifier utilizes the patented DigiTrim® trimming technique to achieve low offset voltage, making it suitable for a wide range of applications. It operates over a supply voltage range of 5 V to 16 V, offering low input bias current, low noise, and wide signal bandwidth. The AD8664ARUZ is particularly useful in systems requiring high accuracy and low noise, such as those involving high impedance sensors, analog-to-digital converters (ADCs), and digital-to-analog converters (DACs).
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Offset Voltage | VOS | 50 | 160 | 1000 (at -40°C to +125°C) | µV |
| Input Bias Current | IB | 0.3 | 1 | 50 (at -40°C to +125°C) | pA |
| Input Offset Current | IOS | 0.2 | 0.5 | 20 (at -40°C to +125°C) | pA |
| Input Voltage Range | VCM | -0.1 | +14.0 | V | |
| Common-Mode Rejection Ratio | CMRR | 90 | 110 | dB | |
| Large Signal Voltage Gain | AVO | 200 | 360 | ||
| Supply Current per Amplifier | ISY | 1.25 | 1.55 | 1.9 (at -40°C to +85°C) | mA |
| Slew Rate | SR | 3.5 | V/µs | ||
| Gain Bandwidth Product | GBP | 4 | MHz | ||
| Voltage Noise Density | en | 10 | nV/√Hz (at 1 kHz) | ||
| Current Noise Density | in | 0.1 | pA/√Hz (at 1 kHz) | ||
| Supply Voltage | V_S | 5 | 16 | V | |
| Operating Temperature Range | TA | -40 | +125 | °C |
Key Features
- Low Offset Voltage: Achieved through the patented DigiTrim® trimming technique, with a maximum offset voltage of 100 µV at 5 V supply.
- Low Input Bias Current: As low as 1 pA, making it suitable for high impedance sensor applications.
- Single-Supply Operation: Operates over a wide supply voltage range of 5 V to 16 V.
- Low Noise: Voltage noise density of 10 nV/√Hz at 1 kHz and current noise density of 0.1 pA/√Hz at 1 kHz.
- Wide Bandwidth: Gain bandwidth product of 4 MHz and a slew rate of 3.5 V/µs.
- High Common-Mode Rejection Ratio (CMRR): Up to 110 dB, ensuring good rejection of common-mode signals.
- Small Package Options: Available in 14-lead TSSOP packages, making it suitable for space-constrained designs.
Applications
- High Impedance Sensors: Ideal for applications involving photodiodes and other high impedance sensors due to its low input bias current and low noise.
- Analog-to-Digital and Digital-to-Analog Converters: Suitable for high performance ADCs and DACs due to its wide operating voltage range and low noise characteristics.
- Audio Applications: Used in audio circuits where high input impedance, low voltage noise, and wide bandwidth are required.
- Medical Monitoring Equipment: Applicable in medical devices that demand high accuracy and low noise levels).
Q & A
- What is the maximum offset voltage of the AD8664ARUZ?
The maximum offset voltage is 100 µV at a 5 V supply, and up to 1400 µV over the full temperature range).
- What is the input bias current of the AD8664ARUZ?
The input bias current is as low as 1 pA, making it suitable for high impedance applications).
- What is the supply voltage range of the AD8664ARUZ?
The AD8664ARUZ operates over a supply voltage range of 5 V to 16 V).
- What is the gain bandwidth product of the AD8664ARUZ?
The gain bandwidth product is 4 MHz).
- What is the slew rate of the AD8664ARUZ?
The slew rate is 3.5 V/µs).
- What are the package options for the AD8664ARUZ?
It is available in 14-lead TSSOP packages).
- What is the common-mode rejection ratio (CMRR) of the AD8664ARUZ?
The CMRR is up to 110 dB).
- What are some typical applications of the AD8664ARUZ?
Typical applications include high impedance sensors, ADCs, DACs, audio circuits, and medical monitoring equipment).
- What is the operating temperature range of the AD8664ARUZ?
The operating temperature range is -40°C to +125°C).
- What is the voltage noise density of the AD8664ARUZ?
The voltage noise density is 10 nV/√Hz at 1 kHz).
