Overview
The AD8229HDZ is a high-performance, low-noise instrumentation amplifier produced by Analog Devices Inc. This device is designed for precision applications requiring high accuracy and minimal distortion. It features an ultralow noise performance of 1 nV/√Hz, making it ideal for measuring small signals in the presence of large common-mode voltages and high noise environments. The AD8229HDZ operates over a wide temperature range from -40°C to 210°C, ensuring reliable performance in challenging environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Noise Density | 1 nV/√Hz | |
| Common Mode Rejection Ratio (CMRR) | 80 dB to 130 dB (depending on gain) | |
| Input Offset Voltage | 100 µV | |
| Input Bias Current | 70 nA (typ), 200 nA (max at high temperature) | |
| Supply Voltage Range | ±4 V to ±17 V | |
| Supply Current | 6.4 mA (typ), 7 mA (max) | |
| Bandwidth | 15 MHz (at G = 1), 1.2 MHz (at G = 100) | |
| Slew Rate | 22 V/µs | |
| Output Current | 35 mA | |
| Operating Temperature Range | -40°C to 210°C | |
| Package Type | 8-Lead SBDIP, 8-Lead SOIC |
Key Features
- Low Noise Performance: 1 nV/√Hz input noise and 45 nV/√Hz output noise, making it suitable for high-precision applications.
- High CMRR: Excellent common-mode rejection ratio (up to 130 dB at G = 1000) for precise signal processing.
- Wide Bandwidth: Up to 15 MHz bandwidth at a gain of 1, and 1.2 MHz at a gain of 100.
- Fast Slew Rate: 22 V/µs slew rate for quick response to input changes.
- Robust Design: Rated for operation up to 210°C, ensuring reliable performance in challenging environments.
- Flexible Gain Setting: Gain can be set from 1 to 1000 using a single external resistor.
- Reference Pin: Allows the user to offset the output voltage, useful when interfacing with analog-to-digital converters.
Applications
- Environmental Testing: Suitable for monitoring and measuring environmental parameters in harsh conditions.
- Aerospace Telemetry: Used in aerospace applications for precise signal processing and transmission.
- Oil Well Monitoring: Ideal for monitoring and controlling systems in oil well environments.
- Vibration Analysis: Excellent for applications requiring high distortion performance, such as vibration analysis.
Q & A
- What is the input noise density of the AD8229HDZ?
The input noise density of the AD8229HDZ is 1 nV/√Hz.
- What is the common-mode rejection ratio (CMRR) of the AD8229HDZ?
The CMRR of the AD8229HDZ ranges from 80 dB to 130 dB, depending on the gain setting.
- What is the operating temperature range of the AD8229HDZ?
The AD8229HDZ operates over a temperature range from -40°C to 210°C.
- How is the gain of the AD8229HDZ set?
The gain of the AD8229HDZ can be set from 1 to 1000 using a single external resistor across the RG pins.
- What is the slew rate of the AD8229HDZ?
The slew rate of the AD8229HDZ is 22 V/µs.
- What are the typical applications of the AD8229HDZ?
The AD8229HDZ is typically used in environmental testing, aerospace telemetry, oil well monitoring, and vibration analysis.
- What is the maximum output current of the AD8229HDZ?
The maximum output current of the AD8229HDZ is 35 mA.
- What are the package options for the AD8229HDZ?
The AD8229HDZ is available in 8-Lead SBDIP and 8-Lead SOIC packages.
- Is the AD8229HDZ RoHS compliant?
Yes, the AD8229HDZ is RoHS compliant.
- What is the bandwidth of the AD8229HDZ at different gain settings?
The bandwidth of the AD8229HDZ is up to 15 MHz at a gain of 1 and 1.2 MHz at a gain of 100.
