Overview
The AD7890AR-10REEL is an 8-channel, 12-bit serial data acquisition system produced by Analog Devices Inc. This component is part of the AD7890 series, which is fabricated using Analog Devices' Linear Compatible CMOS (LC2MOS) process. The AD7890AR-10REEL operates from a single 5V supply and is designed for high-speed, low-power data acquisition. It features an input multiplexer, an on-chip track/hold amplifier, a high-speed 12-bit ADC, and a 2.5V reference. The device supports various analog input ranges, including ±10V for the AD7890-10 version, making it versatile for different applications.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Number of Channels | 8 | Single-ended analog input channels | |
| Resolution | 12 bits | ||
| Analog Input Range | ±10 V | V | For AD7890-10 version |
| Conversion Time | 5.9 μs | μs | fCLK IN = 2.5 MHz, MUX OUT connected to SHA IN |
| Track/Hold Acquisition Time | 2 μs | μs | |
| Voltage Supply | 5 V | V | Single supply, ± 5% for specified performance |
| Power Consumption (Normal Mode) | 50 mW | mW | Typically 30 mW |
| Power Consumption (Standby Mode) | 75 μW | μW | At 25°C |
| Operating Temperature Range | -40°C to 85°C | °C | |
| Package Type | 24-SOIC | Surface mount device | |
| Data Interface | SPI | High-speed, bidirectional serial interface |
Key Features
- Fast 12-bit ADC with a conversion time of 5.9 μs
- Eight single-ended analog input channels with selectable input ranges (±10 V, 0 V to 4.096 V, 0 V to 2.5 V)
- On-chip track/hold amplifier and 2.5 V reference
- High-speed, flexible, serial interface (SPI)
- Single supply, low-power operation (50 mW maximum, 75 μW in standby mode)
- Independently accessible multiplexer allowing for external signal conditioning or antialiasing filters
- Compact 24-SOIC package suitable for space-sensitive applications
- High integration for multiple channel data acquisition
- Competitive speed and resolution for real-time applications
Applications
- Industrial process control
- Medical instruments
- Robotics and automation systems
- Any application requiring high-speed, multi-channel data acquisition with low power consumption
Q & A
- What is the resolution of the AD7890AR-10REEL?
The AD7890AR-10REEL has a 12-bit resolution.
- How many analog input channels does the AD7890AR-10REEL have?
The AD7890AR-10REEL has 8 single-ended analog input channels.
- What are the available input ranges for the AD7890AR-10REEL?
The available input ranges are ±10 V, 0 V to 4.096 V, and 0 V to 2.5 V, depending on the specific version.
- What is the conversion time of the AD7890AR-10REEL?
The conversion time is 5.9 μs.
- What is the power consumption of the AD7890AR-10REEL in normal mode?
The power consumption in normal mode is typically 30 mW, with a maximum of 50 mW.
- What is the power consumption of the AD7890AR-10REEL in standby mode?
The power consumption in standby mode is typically 75 μW at 25°C.
- What is the operating temperature range of the AD7890AR-10REEL?
The operating temperature range is -40°C to 85°C.
- What type of package does the AD7890AR-10REEL come in?
The AD7890AR-10REEL comes in a 24-SOIC package.
- What type of data interface does the AD7890AR-10REEL use?
The AD7890AR-10REEL uses a high-speed, bidirectional SPI interface.
- Can the multiplexer be accessed independently?
