Overview
The AD7858ARZ is a 12-bit, successive approximation register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is designed for high-performance applications requiring precise analog-to-digital conversion. It features a multiplexer and sample-and-hold (MUX-S/H) circuit, allowing it to handle multiple analog input channels. The AD7858ARZ operates with a single supply voltage of 3V and supports both pseudo-differential and single-ended input configurations.
Key Specifications
| Specification | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | AD7858ARZ |
| Package | 24-SOIC (0.295, 7.50mm Width) |
| Number of Bits | 12 |
| Number of Inputs | 4, 8 |
| Number of Pins | 24 |
| Sampling Rate | 200 ksps |
| Polarity | Unipolar |
| Integral Nonlinearity (INL) | 1 LSB |
| Differential Nonlinearity | 1 LSB |
| Min Supply Voltage | 3 V |
| Supply Voltage | 3 V |
Key Features
- High Resolution: 12-bit successive approximation register (SAR) ADC for precise analog-to-digital conversion.
- Multiplexer and Sample-and-Hold: Integrated MUX-S/H circuit to handle multiple analog input channels.
- Single Supply Operation: Operates with a single supply voltage of 3V.
- Input Configurations: Supports both pseudo-differential and single-ended input configurations.
- SPI Interface: Serial peripheral interface (SPI) for data communication.
Applications
The AD7858ARZ is suitable for a variety of high-performance applications, including:
- Industrial Automation: For precise measurement and control in industrial environments.
- Medical Devices: In medical equipment requiring accurate analog-to-digital conversion.
- Aerospace and Defense: For applications demanding high reliability and precision.
- Test and Measurement Equipment: In instruments such as multimeters, oscilloscopes, and signal analyzers.
Q & A
- What is the resolution of the AD7858ARZ ADC?
The AD7858ARZ has a resolution of 12 bits. - What is the sampling rate of the AD7858ARZ?
The sampling rate is 200 ksps. - What type of input configurations does the AD7858ARZ support?
The AD7858ARZ supports both pseudo-differential and single-ended input configurations. - What is the supply voltage for the AD7858ARZ?
The supply voltage is 3V. - What is the package type of the AD7858ARZ?
The package type is 24-SOIC (0.295, 7.50mm Width). - Does the AD7858ARZ have an integrated multiplexer and sample-and-hold circuit?
Yes, it has an integrated MUX-S/H circuit. - What interface does the AD7858ARZ use for data communication?
The AD7858ARZ uses a serial peripheral interface (SPI) for data communication. - What are some typical applications of the AD7858ARZ?
Typical applications include industrial automation, medical devices, aerospace and defense, and test and measurement equipment. - What is the polarity of the AD7858ARZ?
The polarity is unipolar. - What are the integral nonlinearity (INL) and differential nonlinearity (DNL) specifications of the AD7858ARZ?
Both INL and DNL are specified as 1 LSB.
