Overview
The AD7492ARUZ-4REEL is a 12-bit, single-channel, successive approximation register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is designed for high-speed and low-power applications, making it suitable for a variety of industrial and commercial uses. The AD7492 features an internal reference voltage and clock, simplifying the design process and reducing the need for external components.
Key Specifications
| Parameter | Value | Unit | Test Conditions/Comments |
|---|---|---|---|
| Resolution | 12 | Bits | |
| Sampling Rate | 400 kSPS | For AD7492-4 version | |
| Integral Nonlinearity | ±1.5 LSB max, ±0.6 LSB typ | LSB | VDD = 5 V |
| Differential Nonlinearity | +1.5/−0.9 LSB max | LSB | Guaranteed no missed codes to 12 bits |
| Offset Error | ±9 LSB max | LSB | |
| Gain Error | ±2.5 LSB max | LSB | |
| Analog Input Voltage Range | 0 to 2.5 V | V | DC |
| Analog Supply Voltage | 2.7 V to 5.25 V | V | |
| Reference Output Voltage | 2.5 V ± 1.5% | V | |
| Package Type | 24-Pin TSSOP | ||
| Operating Temperature Range | −40°C to +85°C | °C |
Key Features
- High-speed conversion rates: Up to 400 kSPS for the AD7492-4 version and up to 1.25 MSPS for other versions.
- Internal 2.5 V reference voltage and clock, reducing the need for external components.
- Low power consumption: Suitable for battery-powered and power-sensitive applications.
- High accuracy: Low integral and differential nonlinearity, offset error, and gain error.
- Single-ended analog input channel with high DC input impedance.
- Parallel interface for easy data transfer.
- RoHS compliant.
Applications
The AD7492ARUZ-4REEL is versatile and can be used in a wide range of applications, including:
- Communications: For signal processing and data acquisition in communication systems.
- Industrial Automation: In control systems, sensors, and data logging devices.
- Instrumentation and Measurement: In multimeters, oscilloscopes, and other measurement instruments.
- Aerospace and Defense: For high-reliability data acquisition systems.
- Motor and Power Control: In motor control units and power management systems.
- Healthcare: In medical devices such as patient monitoring systems and diagnostic equipment.
Q & A
- What is the resolution of the AD7492ARUZ-4REEL?
The AD7492ARUZ-4REEL has a resolution of 12 bits. - What are the sampling rates available for this ADC?
The AD7492-4 version samples at up to 400 kSPS, while other versions can sample up to 1.25 MSPS. - What is the analog input voltage range for this ADC?
The analog input voltage range is 0 V to 2.5 V. - Does the AD7492ARUZ-4REEL have an internal reference voltage?
Yes, it has an internal 2.5 V reference voltage. - What is the operating temperature range of this component?
The operating temperature range is −40°C to +85°C. - What type of package does the AD7492ARUZ-4REEL come in?
The AD7492ARUZ-4REEL comes in a 24-Pin TSSOP package. - Is the AD7492ARUZ-4REEL RoHS compliant?
Yes, it is RoHS compliant. - What is the recommended decoupling for the analog supply voltage?
The analog supply voltage should be decoupled to AGND. - Why is a dummy conversion recommended after power-up?
A dummy conversion is recommended to ensure the first conversion result is accurate and the part is in the correct mode of operation. - What is the typical input capacitance of the analog input channel?
The typical input capacitance is 33 pF.
