Overview
The AD7828TQ, produced by Analog Devices Inc., is a high-speed, 8-bit analog-to-digital converter (ADC) with an 8-channel input multiplexer. This component is designed for cost-effective, space-saving multichannel ADC systems. It operates on a single 5 V supply and features a fast conversion rate of 2.5 µs per channel, making it suitable for high-speed data acquisition applications. The AD7828TQ includes a built-in track-and-hold function, allowing it to handle signals up to 10 kHz bandwidth with a slew rate of 157 mV/µs. The device is fabricated in an advanced, all ion-implanted, linear-compatible CMOS process (LC2MOS), ensuring low power dissipation and high reliability.
Key Specifications
| Specification | Value |
|---|---|
| Number of Bits | 8 |
| Number of Analog Input Channels | 8 |
| Conversion Rate | 2.5 µs/channel |
| Sampling Frequency | Up to 50 kHz |
| Analog Input Range | 0 V to 5 V |
| Reference Type | External |
| Supply Voltage (Analog and Digital) | 4.75 V to 5.25 V |
| Operating Temperature | -55°C to +125°C |
| Package Type | 28-CDIP (0.600", 15.24mm) |
| Data Interface | Parallel |
| Architecture | Flash |
| Power Dissipation | 40 mW (typ) |
Key Features
- 4 or 8-channel input multiplexer for cost-effective, space-saving multichannel ADC systems.
- Fast conversion rate of 2.5 µs per channel with no need for an external clock signal.
- Built-in track-and-hold function capable of handling signals up to 10 kHz bandwidth with a slew rate of 157 mV/µs.
- Tight total unadjusted error specification and channel-to-channel matching eliminate the need for user trims.
- Single +5 V supply simplifies system power requirements.
- Easy-to-use digital interface compatible with most popular microprocessors.
- Low power dissipation of 40 mW (typ) in an advanced LC2MOS process.
Applications
The AD7828TQ is suitable for a variety of high-speed data acquisition applications, including:
- Industrial control systems
- Automotive systems
- Medical devices
- Aerospace and defense systems
- High-speed data logging and monitoring systems
Q & A
- What is the conversion rate of the AD7828TQ? The AD7828TQ has a conversion rate of 2.5 µs per channel.
- How many analog input channels does the AD7828TQ have? The AD7828TQ has 8 analog input channels.
- What is the operating temperature range of the AD7828TQ? The operating temperature range is -55°C to +125°C.
- What type of supply voltage does the AD7828TQ require? The AD7828TQ requires a single +5 V supply.
- Does the AD7828TQ require an external clock signal? No, the AD7828TQ does not require an external clock signal.
- What is the power dissipation of the AD7828TQ? The power dissipation is typically 40 mW.
- What type of data interface does the AD7828TQ use? The AD7828TQ uses a parallel data interface.
- What is the architecture of the AD7828TQ's ADC? The ADC uses a flash architecture.
- What is the maximum sampling frequency of the AD7828TQ? The maximum sampling frequency is up to 50 kHz.
- Is the AD7828TQ compatible with most microprocessors? Yes, the AD7828TQ is designed to be easily interfaced with most popular microprocessors.
