Overview
The AD7828KP is a high-speed, 8-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD7828 series, which offers an 8-channel input multiplexer, making it a cost-effective and space-saving solution for multichannel ADC systems. The AD7828KP operates on a single 5 V supply and features a fast conversion rate of 2.5 µs per channel, along with a built-in track-and-hold function capable of digitizing full-scale signals of 10 kHz.
Key Specifications
| Specification | Value |
|---|---|
| Number of Channels | 8 |
| Resolution | 8-bit |
| Conversion Rate | 2.5 µs per channel |
| Supply Voltage | Single 5 V |
| Analog Input Range | 0 V to 5 V |
| Power Dissipation | 40 mW (typical) |
| Operating Temperature | 0°C to 70°C |
| Package Type | 28-lead PLCC |
Key Features
- 4 or 8 analog input channels with a built-in track-and-hold function.
- Fast conversion rate of 2.5 µs per channel using a half-flash conversion technique.
- Single 5 V supply with low power dissipation of 40 mW (typical).
- Easy microprocessor interface using standard Chip Select (CS) and Read (RD) signals.
- No external clock signal required for the ADC.
- Fully differential reference inputs defining the zero to full-scale input range.
- Internal DAC for recreating an analog approximation of the input voltage.
Applications
The AD7828KP is suitable for various applications requiring high-speed, multichannel analog-to-digital conversion. These include:
- Data acquisition systems.
- Industrial control systems.
- Medical devices requiring multiple analog inputs.
- Aerospace and defense systems where high-speed conversion is critical.
- Automotive systems needing robust and fast ADCs.
Q & A
- What is the conversion rate of the AD7828KP?
The AD7828KP has a conversion rate of 2.5 µs per channel.
- How many analog input channels does the AD7828KP have?
The AD7828KP has 8 analog input channels.
- What is the supply voltage for the AD7828KP?
The AD7828KP operates on a single 5 V supply.
- What is the typical power dissipation of the AD7828KP?
The typical power dissipation is 40 mW.
- Does the AD7828KP require an external clock signal?
No, the AD7828KP does not require an external clock signal due to its half-flash conversion technique.
- What is the operating temperature range of the AD7828KP?
The operating temperature range is 0°C to 70°C.
- What type of package is the AD7828KP available in?
The AD7828KP is available in a 28-lead PLCC package.
- How does the AD7828KP interface with microprocessors?
The AD7828KP interfaces with microprocessors using standard Chip Select (CS) and Read (RD) signals.
- What is the analog input range of the AD7828KP?
The analog input range is 0 V to 5 V, defined by the external reference inputs.
- What is the purpose of the built-in track-and-hold function in the AD7828KP?
The built-in track-and-hold function allows the ADC to digitize full-scale signals of 10 kHz.
