Overview
The AD8574ARUZ, produced by Analog Devices Inc., is a quad operational amplifier that features zero-drift, auto-zeroing technology. This amplifier is part of the AD8571/AD8572/AD8574 family, which includes single, dual, and quad configurations, respectively. The AD8574ARUZ is known for its ultralow offset voltage, drift, and bias current, making it an excellent choice for applications requiring high precision and low distortion. It operates from a single supply voltage ranging from 2.7 V to 5.5 V and is packaged in a 14-pin TSSOP (Thin Shrink Small Outline Package).
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V | |
| Input Offset Voltage | 1 µV | |
| Input Bias Current | 10 pA typical | |
| Supply Current | 850 µA | |
| Gain Bandwidth Product | 1.5 MHz | |
| Slew Rate | 0.4 V/µs | |
| Common-Mode Rejection Ratio (CMRR) | 120 dB to 140 dB | VCM = 0 V to 5 V |
| Operating Temperature Range | -40°C to +125°C | |
| Output Type | Rail-to-Rail | |
| Number of Amplifiers | 4 | |
| Package Type | 14-pin TSSOP |
Key Features
- Zero-Drift Technology: Utilizes a spread-spectrum, auto-zero technique to eliminate intermodulation effects and provide high accuracy.
- Ultralow Offset Voltage: 1 µV, ensuring minimal offset voltage error over the operating temperature range.
- Low Input Bias Current: 10 pA typical, contributing to high precision in measurements.
- Rail-to-Rail Input and Output: Allows the input common-mode voltage range to reach both supply rails and ensures full output swing.
- Low Supply Current: 850 µA, making it suitable for low-power applications.
- High Gain Bandwidth Product: 1.5 MHz, enabling high-frequency signal processing.
- No External Capacitors Required: Simplifies circuit design and reduces component count.
Applications
- Temperature Sensors: Ideal for precise temperature measurements due to its low drift and offset characteristics.
- Pressure Sensors: Used in precision current sensing and strain gage amplifiers.
- Medical Instrumentation: Suitable for medical devices requiring high precision and low noise.
- Thermocouple Amplifiers: Excellent for thermocouple applications due to its low offset and drift.
- Automotive Applications: Robust enough to operate in the harsh environments of automotive systems.
Q & A
- What is the supply voltage range of the AD8574ARUZ?
The AD8574ARUZ operates from a single supply voltage ranging from 2.7 V to 5.5 V.
- What is the typical input offset voltage of the AD8574ARUZ?
The typical input offset voltage is 1 µV.
- What is the input bias current of the AD8574ARUZ?
The input bias current is 10 pA typical.
- Does the AD8574ARUZ require external capacitors?
No, the AD8574ARUZ does not require external capacitors.
- What is the gain bandwidth product of the AD8574ARUZ?
The gain bandwidth product is 1.5 MHz.
- What is the slew rate of the AD8574ARUZ?
The slew rate is 0.4 V/µs.
- What is the common-mode rejection ratio (CMRR) of the AD8574ARUZ?
The CMRR is between 120 dB to 140 dB.
- What is the operating temperature range of the AD8574ARUZ?
The operating temperature range is -40°C to +125°C.
- What type of output does the AD8574ARUZ have?
The AD8574ARUZ has rail-to-rail output.
- How many amplifiers are in the AD8574ARUZ?
The AD8574ARUZ contains four operational amplifiers.
