Overview
The ADS7816EC/250, manufactured by Texas Instruments, is a 12-bit high-speed micropower 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 or applications where multiple signals need to be acquired simultaneously. The ADS7816EC/250 uses a successive approximation register (SAR) architecture based on capacitive redistribution, which includes a sample/hold function, allowing for high-speed conversions with minimal power consumption.
Key Specifications
| Parameter | Conditions | Min | Max | Units | |
|---|---|---|---|---|---|
| Resolution | - | 12 | 12 | 12 | Bits |
| No Missing Codes | - | 11 | 12 | - | Bits |
| Integral Linearity Error | - | ±0.5 | ±2 | ±0.5 | LSB |
| Differential Linearity Error | - | ±0.5 | ±2 | ±0.25 | LSB |
| Offset Error | - | ±4 | - | - | LSB |
| Gain Error | - | ±4 | - | - | LSB |
| Sample Rate | - | - | 200kHz | - | - |
| Analog Input Voltage Range | - | -0.2 VCC | - | +0.2 VCC | V |
| Operating Temperature | - | -40°C | - | +85°C | °C |
| Supply Voltage | - | - | 5V | - | V |
| Package Type | - | - | 8-VSSOP, 8-lead SOIC, 8-lead MSOP | - | - |
Key Features
- Low power operation with automatic power down, making it suitable for battery-operated systems and multiple signal acquisitions.
- Synchronous serial interface for easy data transfer.
- Differential input for improved noise immunity.
- Variable reference voltage from 100mV to 5V, allowing for flexible input range settings.
- High-speed sampling at up to 200kHz.
- Small package options including 8-pin plastic mini-DIP, 8-lead SOIC, and 8-lead MSOP.
- Successive approximation register (SAR) architecture with capacitive redistribution for efficient conversions.
Applications
The ADS7816EC/250 is ideal for various applications, including:
- Battery-operated systems where low power consumption is critical.
- Remote and/or isolated data acquisition systems.
- Systems requiring simultaneous acquisition of multiple signals.
- Industrial and medical devices that need high-speed, precise analog-to-digital conversions.
Q & A
- What is the resolution of the ADS7816EC/250?
The ADS7816EC/250 has a resolution of 12 bits. - What is the maximum sampling rate of the ADS7816EC/250?
The maximum sampling rate is up to 200kHz. - What types of packages are available for the ADS7816EC/250?
The device is available in 8-pin plastic mini-DIP, 8-lead SOIC, and 8-lead MSOP packages. - What is the operating temperature range of the ADS7816EC/250?
The operating temperature range is from -40°C to +85°C. - Does the ADS7816EC/250 require an external reference voltage?
Yes, the ADS7816EC/250 requires an external reference voltage that can be varied from 100mV to 5V. - What is the power supply requirement for the ADS7816EC/250?
The device requires a single +5V power source. - Is the ADS7816EC/250 suitable for battery-operated systems?
Yes, it is suitable due to its low power operation and automatic power down feature. - What type of interface does the ADS7816EC/250 use for data transfer?
The device uses a synchronous serial interface. - What is the architecture of the ADS7816EC/250?
The device uses a successive approximation register (SAR) architecture based on capacitive redistribution. - Is the ADS7816EC/250 available for new designs?
Yes, many variants of the ADS7816 are recommended for new designs, although some specific versions may be obsolete.
