Overview
The ADS7816U/2K5, produced by Texas Instruments, is a 12-bit high-speed micro power sampling analog-to-digital converter (ADC). This device is designed for low power operation and features automatic power down, making it ideal for battery-operated systems and applications where multiple signals need to be acquired simultaneously. The ADS7816U/2K5 operates with a synchronous serial interface and supports a differential input. It is available in various packages, including an 8-lead SOIC and MSOP, and is suitable for remote and isolated data acquisition systems.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 12 | - | - | Bits |
| Sampling Rate | - | - | 200 | kHz |
| Integral Linearity Error | ±0.5 | ±2 | - | LSB |
| Differential Linearity Error | ±0.5 | ±1 | - | LSB |
| Offset Error | ±4 | - | - | LSB |
| Gain Error | ±4 | - | - | LSB |
| Noise | - | - | 33 | µVrms |
| Power Supply Rejection | - | - | 82 | dB |
| Reference Voltage Range | 0.1 | - | 5 | V |
| Power Supply Voltage | 4.50 | - | 5.25 | V |
| Quiescent Current | 380 | - | 700 | µA |
| Operating Temperature Range | -40 | - | 85 | °C |
Key Features
- Low power operation with automatic power down
- Synchronous serial interface
- Differential input with a range from 0 to VREF (up to 5V)
- High-speed sampling at up to 200 kHz
- Small size and low power consumption, making it suitable for battery-operated systems
- Available in 8-pin plastic mini-DIP, 8-lead SOIC, and 8-lead MSOP packages
- External reference voltage can be varied from 100mV to 5V
- High accuracy with no missing codes and low integral and differential linearity errors
Applications
The ADS7816U/2K5 is ideal for various applications, including:
- Battery-operated systems where low power consumption is critical
- Remote and isolated data acquisition systems
- Systems requiring simultaneous acquisition of multiple signals
- Industrial automation and control systems
- Medical devices and diagnostic equipment
- Aerospace and defense applications where high reliability and low power are essential
Q & A
- What is the resolution of the ADS7816U/2K5?
The ADS7816U/2K5 has a resolution of 12 bits. - What is the maximum sampling rate of the ADS7816U/2K5?
The maximum sampling rate is 200 kHz. - What is the range of the reference voltage for the ADS7816U/2K5?
The reference voltage can be varied from 100mV to 5V. - What are the available package options for the ADS7816U/2K5?
The device is available in 8-pin plastic mini-DIP, 8-lead SOIC, and 8-lead MSOP packages. - How does the power consumption of the ADS7816U/2K5 vary with the sampling rate?
The power consumption scales directly with the conversion rate. - What is the typical quiescent current of the ADS7816U/2K5?
The typical quiescent current is between 380 µA and 700 µA. - What is the operating temperature range of the ADS7816U/2K5?
The operating temperature range is from -40°C to +85°C. - Does the ADS7816U/2K5 have automatic power down?
Yes, the device features automatic power down to reduce power consumption when not in use. - What type of interface does the ADS7816U/2K5 use?
The device uses a synchronous serial interface. - Is the ADS7816U/2K5 suitable for remote data acquisition?
Yes, it is suitable for remote and isolated data acquisition systems.
