Overview
The AD7854ARZ is a high-performance, 12-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed for precision applications and operates on a single supply voltage ranging from 3 V to 5 V. It features a throughput rate of 200 kHz and is suitable for converting full-power signals up to 100 kHz. The AD7854ARZ is available in various package options, including 28-pin DIP, 28-lead SOIC, and 28-lead SSOP, ensuring flexibility in design and implementation.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Throughput Rate | 200 kHz |
| Input Voltage Range | 0 to VREF (unipolar), -VREF/2 to +VREF/2 (bipolar) |
| Supply Voltage | 3 V to 5 V |
| Power Consumption | Typically 5.4 mW (normal operation), 3.6 µW (power-down mode) |
| Package Options | 28-pin DIP, 28-lead SOIC, 28-lead SSOP |
| Input Signal Acquisition Time | 500 ns |
| Coding | Straight binary (unipolar), twos complement (bipolar) |
Key Features
- Pseudo-differential sampling scheme for improved signal integrity.
- Low power consumption with CMOS construction, typically 5.4 mW in normal operation and 3.6 µW in power-down mode.
- Flexible input voltage range: 0 to VREF (unipolar) and -VREF/2 to +VREF/2 (bipolar).
- Available in multiple package options: 28-pin DIP, 28-lead SOIC, and 28-lead SSOP.
- RoHS compliant, indicated by the 'Z' suffix in the part number.
Applications
The AD7854ARZ is suitable for a variety of precision analog-to-digital conversion applications, including industrial control systems, medical devices, and data acquisition systems. Its high throughput rate and low power consumption make it ideal for applications requiring fast and accurate signal conversion.
Q & A
- What is the resolution of the AD7854ARZ?
The AD7854ARZ has a resolution of 12 bits. - What is the throughput rate of the AD7854ARZ?
The throughput rate of the AD7854ARZ is 200 kHz. - What are the input voltage ranges for the AD7854ARZ?
The input voltage ranges are 0 to VREF (unipolar) and -VREF/2 to +VREF/2 (bipolar). - What are the supply voltage requirements for the AD7854ARZ?
The supply voltage ranges from 3 V to 5 V. - How much power does the AD7854ARZ consume?
The AD7854ARZ consumes typically 5.4 mW in normal operation and 3.6 µW in power-down mode. - What package options are available for the AD7854ARZ?
The AD7854ARZ is available in 28-pin DIP, 28-lead SOIC, and 28-lead SSOP packages. - What does the 'Z' suffix in the part number indicate?
The 'Z' suffix indicates that the part is RoHS compliant. - How long does it take for the input signal to be acquired by the AD7854ARZ?
The input signal is acquired in 500 ns. - What coding schemes are used by the AD7854ARZ?
The AD7854ARZ uses straight binary coding in unipolar mode and twos complement coding in bipolar mode. - Is the AD7854ARZ suitable for high-speed signal conversion?
Yes, the AD7854ARZ is capable of converting full-power signals up to 100 kHz.
