Overview
The ADS8319IDGSR 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 resolution, low power consumption, and compact packaging. The ADS8319IDGSR operates with a 2.25-V to 5.5-V external reference voltage and features a successive-approximation register (SAR) architecture with inherent sample and hold capabilities. It is designed for very-low power operation, making it suitable for a variety of applications, including battery-powered equipment, data acquisition systems, and medical electronics.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Resolution | 16 Bits | |
| Sample Rate | 500 kSPS | |
| Input Range | 0 V to VREF | |
| Reference Voltage | 2.25 V to 5.5 V | |
| Analog Power Supply Voltage | 4.5 V to 5.5 V | V |
| Digital I/O Power Supply Voltage | 2.375 V to 5.5 V | V |
| Operating Temperature | -40°C to 85°C | °C |
| Power Dissipation at 500 kSPS | 18 mW (Typical) | mW |
| Power Dissipation in Power-Down State | 0.25 µW (Typical) | µW |
| SNR (Signal-to-Noise Ratio) at 10 kHz Input | 93.6 dB (Typical) | dB |
| THD (Total Harmonic Distortion) at 10 kHz Input | -106 dB (Typical) | dB |
| Integral Linearity (INL) | ±1.5 LSB (Maximum) | LSB |
| Differential Linearity (DNL) | ±1 LSB (Maximum) | LSB |
| Package Type | 10-pin VSSOP and VSON |
Key Features
- 16-bit resolution with no missing codes.
- 500-kHz sample rate with zero latency at full speed.
- Unipolar, single-ended input range from 0 V to VREF.
- SPI-compatible serial interface with daisy-chain option.
- Excellent performance: high SNR (93.6 dB typical at 10 kHz input), low THD (-106 dB typical at 10 kHz input), and low INL and DNL.
- Low power dissipation: 18 mW at 500 kSPS, scaling linearly with speed.
- Power-down state with very low power consumption (0.25 µW typical).
- Compact packaging in 10-pin VSSOP and VSON.
- Busy Indicator for easy synchronization with the digital host.
Applications
- Battery-powered equipment.
- Data acquisition systems.
- Instrumentation and process controls.
- Medical electronics.
- Optical networking.
Q & A
- What is the resolution of the ADS8319IDGSR?
The ADS8319IDGSR has a 16-bit resolution.
- What is the maximum sample rate of the ADS8319IDGSR?
The maximum sample rate is 500 kSPS.
- What is the input voltage range of the ADS8319IDGSR?
The input voltage range is from 0 V to VREF.
- What type of serial interface does the ADS8319IDGSR use?
The device uses an SPI-compatible serial interface with a daisy-chain option.
- How much power does the ADS8319IDGSR consume at 500 kSPS?
The power dissipation at 500 kSPS is typically 18 mW.
- What is the power consumption in the power-down state?
The power consumption in the power-down state is typically 0.25 µW.
- What are the typical SNR and THD values at a 10 kHz input?
The typical SNR is 93.6 dB, and the typical THD is -106 dB at a 10 kHz input.
- What are the maximum INL and DNL values?
The maximum INL is ±1.5 LSB, and the maximum DNL is ±1 LSB.
- In what packages is the ADS8319IDGSR available?
The device is available in 10-pin VSSOP and VSON packages.
- What are some common applications of the ADS8319IDGSR?
Common applications include battery-powered equipment, data acquisition systems, instrumentation and process controls, medical electronics, and optical networking.
