Overview
The ADS8319IBDGST is a 16-bit, 500-kSPS (kilosamples per second), analog-to-digital converter (ADC) produced by Texas Instruments. This device is part of the ADS8319 family and is known for its high precision and low power consumption. The ADS8319 operates with a 2.25-V to 5.5-V external reference voltage and features a capacitor-based, successive-approximation register (SAR) ADC with inherent sample and hold capabilities. It is designed for applications requiring high accuracy and low power, making it suitable for a variety of industrial, medical, and battery-powered devices.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Sample Rate | 500 kHz | |
| Resolution | 16 Bits | |
| Input Range | 0 V to VREF | |
| SNR (Typical) at 10-kHz Input | 93.6 dB | |
| THD (Typical) at 10-kHz Input | –106 dB | |
| INL (Maximum) | ±1.5 LSB | |
| DNL (Maximum) | ±1 LSB | |
| Power Dissipation at 500 kSPS | 18 mW (Typical) | |
| Power Dissipation During Power-Down State | 0.25 µW (Typical) | |
| Package Types | 10-Pin VSSOP and VSON | |
| Analog Power Supply Voltage | 2.25 V to 5.5 V | |
| Digital I/O Power Supply Voltage | 2.375 V to 5.5 V | |
| Operating Temperature | –40°C to 85°C |
Key Features
- High Resolution and Accuracy: 16-bit resolution with ±1.5-LSB (Maximum) INL and ±1-LSB (Maximum) DNL.
- Low Power Consumption: Power dissipation scales linearly with speed, with 18 mW (Typical) at 500 kSPS and 0.25 µW (Typical) during power-down state.
- SPI-Compatible Serial Interface: Supports daisy-chaining or cascading of multiple devices with a 50-MHz interface and a Busy Indicator for easy synchronization with the digital host.
- Unipolar, Single-Ended Input Range: Supports an input swing of 0 V to +VREF.
- Compact Packaging: Available in 10-pin VSSOP and VSON packages.
- Excellent Dynamic Performance: 93.6-dB SNR (Typical) and –106-dB THD (Typical) at 10-kHz input.
Applications
- Battery-Powered Equipment: Ideal for devices where power efficiency is crucial.
- Data Acquisition Systems: Suitable for high-accuracy data collection in various industrial settings.
- Instrumentation and Process Controls: Used in precision measurement and control applications.
- Medical Electronics: Applicable in medical devices requiring high accuracy and low power consumption.
- Optical Networking: Can be used in optical communication systems for precise signal conversion.
Q & A
- What is the resolution of the ADS8319IBDGST ADC?
The ADS8319IBDGST has a 16-bit resolution.
- What is the maximum sample rate of the ADS8319IBDGST?
The maximum sample rate is 500 kSPS.
- What is the input range of the ADS8319IBDGST?
The input range is from 0 V to +VREF.
- What type of serial interface does the ADS8319IBDGST support?
The device supports an SPI-compatible serial interface with daisy-chain option.
- How much power does the ADS8319IBDGST consume at 500 kSPS?
The power dissipation is typically 18 mW at 500 kSPS.
- What is the power consumption during the power-down state?
The power dissipation during power-down state is typically 0.25 µW.
- In what packages is the ADS8319IBDGST available?
The device is available in 10-pin VSSOP and VSON packages.
- What are the typical SNR and THD values at 10-kHz input?
The typical SNR is 93.6 dB and the typical THD is –106 dB at 10-kHz input.
- What are some common applications of the ADS8319IBDGST?
Common applications include battery-powered equipment, data acquisition systems, instrumentation and process controls, medical electronics, and optical networking.
- What is the operating temperature range of the ADS8319IBDGST?
The operating temperature range is from –40°C to 85°C.
