Overview
The ADS7818E/2K5G4 is a 12-bit, high-speed, low-power analog-to-digital converter (ADC) manufactured by Texas Instruments. This component features a single differential input and operates with a successive approximation register (SAR) architecture. It is designed for high-speed data acquisition and precision data conversion, making it suitable for various applications requiring accurate and rapid analog-to-digital conversions.
The ADS7818E/2K5G4 is packaged in an 8-VSSOP (Very Thin Shrink Small Outline Package) and supports surface mount technology. Although it is currently discontinued at some distributors, it remains a competitive choice for legacy systems that require high-speed and precision ADC functionality.
Key Specifications
| Parameter | Value |
|---|---|
| Product Status | Discontinued at Digi-Key |
| Number of Bits | 12 |
| Sampling Rate (Per Second) | 500k |
| Input Type | Differential |
| Data Interface | SPI |
| Configuration | S/H-ADC |
| Ratio - S/H:ADC | 1:1 |
| Architecture | SAR |
| Reference Type | Internal, External |
| Voltage - Supply, Analog | 4.75 V to 5.25 V |
| Voltage - Supply, Digital | 4.75 V to 5.25 V |
| Operating Temperature | -40°C ~ 85°C |
| Package / Case | 8-VSSOP |
| Mounting Type | Surface Mount |
| SNR - Signal to Noise Ratio | 72 dB |
| SINAD - Signal to Noise and Distortion Ratio | 72 dB |
| DNL - Differential Nonlinearity | +/- 0.8 LSB |
| INL - Integral Nonlinearity | +/- 2 LSB |
| Power Consumption | 11 mW |
Key Features
- High-Speed Sampling: 500 ksamples per second.
- Resolution: 12-bit resolution for precise data conversion.
- Input Type: Single differential input.
- Data Interface: SPI (Serial Peripheral Interface) for easy communication.
- Architecture: Successive Approximation Register (SAR) architecture for efficient conversion.
- Reference Type: Internal and external reference options available.
- Low Power Consumption: 11 mW power consumption for energy-efficient operation.
- Compact Packaging: 8-VSSOP package with surface mount technology.
- Operating Temperature Range: -40°C to 85°C, suitable for a wide range of environments.
- Integrated Sample-and-Hold: Simplifies design and improves performance.
Applications
The ADS7818E/2K5G4 is suitable for various applications that require high-speed and precise analog-to-digital conversions. Some of the key applications include:
- Data Acquisition Systems: Ideal for systems that need to capture high-speed analog data with precision.
- Industrial Automation: Used in control systems, monitoring, and data logging in industrial environments.
- Medical Devices: Suitable for medical equipment that requires accurate and rapid data conversion.
- Aerospace and Defense: Used in applications where high reliability and precision are critical.
- Legacy Systems: Despite being discontinued, it remains a viable option for maintaining and upgrading existing systems that rely on its performance characteristics.
Q & A
- What is the resolution of the ADS7818E/2K5G4 ADC?
The ADS7818E/2K5G4 has a 12-bit resolution.
- What is the sampling rate of the ADS7818E/2K5G4?
The sampling rate is 500 ksamples per second.
- What type of input does the ADS7818E/2K5G4 support?
The ADS7818E/2K5G4 supports a single differential input.
- What data interface does the ADS7818E/2K5G4 use?
The data interface is SPI (Serial Peripheral Interface).
- What is the architecture of the ADS7818E/2K5G4?
The architecture is Successive Approximation Register (SAR).
- What is the operating temperature range of the ADS7818E/2K5G4?
The operating temperature range is -40°C to 85°C.
- What is the power consumption of the ADS7818E/2K5G4?
The power consumption is 11 mW.
- Is the ADS7818E/2K5G4 RoHS compliant?
Yes, the ADS7818E/2K5G4 is RoHS compliant.
- What is the package type of the ADS7818E/2K5G4?
The package type is 8-VSSOP.
- Is the ADS7818E/2K5G4 suitable for high-speed data acquisition?
Yes, it is designed for high-speed data acquisition with a sampling rate of 500 ksamples per second.
