Overview
The ADS7818EB/250 is a 12-bit Analog-to-Digital Converter (ADC) manufactured by Texas Instruments. Designed for high-speed data acquisition applications, this converter features a Single-Active-Element Successive Approximation Register (SAR) architecture. It is equipped with an internal reference and supports a conversion rate of up to 500k samples per second, making it ideal for capturing fast-changing analog signals accurately. The device is available in a compact 8-VSSOP package and operates over a temperature range of -40°C to 85°C, ensuring reliability in various environments.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Resolution | 12 bits | Mounting Style | SMD/SMT |
| Interface Type | SPI | Number of Channels | 1 Channel |
| Input Type | Differential | Sampling Rate | 500 kS/s |
| Architecture | SAR | Analog Supply Voltage | 4.75 V to 5.25 V |
| Digital Supply Voltage | 4.75 V to 5.25 V | SNR - Signal to Noise Ratio | 72 dB |
| Minimum Operating Temperature | -40°C | Maximum Operating Temperature | +85°C |
| Power Dissipation | 20 mW | Power Consumption | 11 mW |
| Reference Type | Internal | Number of Converters | 1 Converter |
| Package / Case | 8-VSSOP | Height | 0.97 mm |
| Length | 3 mm | Width | 3 mm |
Key Features
- 12-bit resolution with no missing codes
- Conversion rate of up to 500k samples per second
- Single differential input, suitable for applications with common-mode noise
- Internal reference voltage
- SPI interface for data communication
- SAR architecture for efficient and accurate conversions
- Compact 8-VSSOP package
- Low power consumption with 11 mW typical power dissipation
- Operating temperature range of -40°C to 85°C
Applications
- Industrial process control
- Instrumentation
- Data acquisition systems
- Automotive test equipment
- Medical devices
- Battery-operated systems such as wireless communication devices and portable multi-channel data loggers
- Spectrum analyzers
Q & A
- What is the resolution of the ADS7818EB/250 ADC?
The ADS7818EB/250 has a 12-bit resolution.
- What is the maximum sampling rate of the ADS7818EB/250?
The maximum sampling rate is up to 500k samples per second.
- What type of input does the ADS7818EB/250 support?
The ADS7818EB/250 supports a single differential input.
- What is the architecture of the ADS7818EB/250 ADC?
The architecture is Successive Approximation Register (SAR).
- What is the interface type of the ADS7818EB/250?
The interface type is SPI (Serial Peripheral Interface).
- What is the operating temperature range of the ADS7818EB/250?
The operating temperature range is -40°C to 85°C.
- What is the power consumption of the ADS7818EB/250?
The typical power consumption is 11 mW.
- Can the internal reference of the ADS7818EB/250 be overdriven by an external voltage?
- In what package is the ADS7818EB/250 available?
The ADS7818EB/250 is available in an 8-VSSOP package.
- What are some typical applications of the ADS7818EB/250?
Typical applications include industrial process control, instrumentation, data acquisition systems, automotive test equipment, and medical devices.
