Overview
The ADS8318IDGST is a 16-bit, 500-kHz sample rate analog-to-digital converter (ADC) produced by Texas Instruments. This device is designed for high-performance applications requiring low power consumption and high accuracy. It operates with a 2.048-V to 5.5-V external reference and features a capacitor-based, successive approximation register (SAR) A/D converter with an inherent sample and hold function. The ADS8318 is available in a 10-pin VSSOP (DGS) package, making it suitable for a variety of compact and power-efficient designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16 | Bits |
| Sample Rate | 500 kHz | |
| Input Range | –Vref to +Vref | V |
| Input Common-Mode Range | 0 to Vref/2 + 0.1 V | V |
| Power Supply | 4.5 V to 5.5 V | V |
| Power Dissipation (Typical) | 18 mW at 500 kSPS | mW |
| Power Dissipation During Power-Down | 0.25 μW | μW |
| Operating Temperature Range | –40°C to 85°C | °C |
| Package Type | 10-pin VSSOP (DGS) | |
| SNR (Typical at 10 kHz Input) | 95.2 dB | dB |
| THD (Typical at 10 kHz Input) | –108 dB | dB |
| Integral Linearity (INL) | ±1.0 LSB Max | LSB |
| Differential Linearity (DNL) | ±0.75 LSB Max | LSB |
Key Features
- 500-kHz sample rate with zero latency at full speed
- Unipolar differential input range: –Vref to +Vref with a common-mode of +Vref/2
- SPI compatible serial interface with daisy chain option and busy indicator
- Excellent performance: 95.2 dB SNR and –108 dB THD at 10 kHz input
- Low power dissipation: 18 mW typical at 500 kSPS, scaling linearly with speed
- Low power-down state: 0.25 μW typical
- Available in 10-pin MSOP and SON packages
Applications
- Battery-powered equipment
- Data acquisition systems
- Instrumentation and process control
- Medical electronics
- Optical networking
Q & A
- What is the sample rate of the ADS8318? The sample rate of the ADS8318 is 500 kHz.
- What is the resolution of the ADS8318? The resolution of the ADS8318 is 16 bits.
- What is the input range of the ADS8318? The input range of the ADS8318 is –Vref to +Vref.
- What type of interface does the ADS8318 use? The ADS8318 uses an SPI compatible serial interface with a daisy chain option.
- How much power does the ADS8318 consume at 500 kSPS? The ADS8318 consumes 18 mW typical at 500 kSPS.
- What is the power consumption during the power-down state? The power consumption during the power-down state is 0.25 μW typical.
- In what packages is the ADS8318 available? The ADS8318 is available in 10-pin MSOP and SON packages.
- What are some common applications of the ADS8318? Common applications include battery-powered equipment, data acquisition systems, instrumentation and process control, medical electronics, and optical networking.
- What is the operating temperature range of the ADS8318? The operating temperature range of the ADS8318 is –40°C to 85°C.
- What is the typical SNR of the ADS8318 at a 10 kHz input? The typical SNR of the ADS8318 at a 10 kHz input is 95.2 dB.
