Overview
The ADS8326IBDGKTG4, produced by Texas Instruments, is a 16-bit, sampling, analog-to-digital (A/D) converter. This device is part of the Successive Approximation Register (SAR) family and is known for its low power consumption and high conversion rate. The ADS8326 is fabricated on a 0.6μ CMOS process, enabling it to acquire and convert analog signals at up to 250,000 conversions per second while consuming less than 10mW from the power supply. It operates with a single power source and requires an external reference and clock.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16-bit |
| Conversion Rate | Up to 250 kHz |
| Power Supply Voltage | 2.7V to 5.5V |
| Power Consumption | 10mW at 5V, 250kHz; 4mW at 2.7V, 200kHz; 2mW at 2.7V, 100kHz |
| External Clock Frequency | 24 kHz to 6.0 MHz |
| Analog Input Range | Set by external reference (0.1V to VDD) |
| Digital Interface | Synchronous 3-wire serial interface |
| Package Type | 8-pin VSSOP |
Key Features
- Low Power Consumption: The ADS8326 consumes very little power, making it suitable for battery-powered and power-sensitive applications.
- High Conversion Rate: Capable of converting up to 250,000 samples per second.
- Wide Power Supply Range: Operates from 2.7V to 5.5V, accommodating different logic levels.
- External Reference: Allows for flexible analog input range setting via an external reference voltage.
- Sample-and-Hold Function: Includes an internal sample-and-hold function as part of its SAR architecture.
- Low Noise: Features extremely low transition noise, making it suitable for high-precision applications.
- Power-Down Mode: Enters power-down mode when the conversion is complete or when the CS signal is high, reducing power consumption.
Applications
- Data Acquisition Systems: Ideal for various data acquisition applications due to its high accuracy and low power consumption.
- Industrial Automation: Suitable for industrial automation where precise analog-to-digital conversion is required.
- Medical Devices: Can be used in medical devices that require high-resolution analog-to-digital conversion with low power consumption.
- Battery-Powered Devices: Appropriate for battery-powered devices where power efficiency is crucial.
Q & A
- What is the resolution of the ADS8326?
The ADS8326 has a resolution of 16 bits.
- What is the maximum conversion rate of the ADS8326?
The maximum conversion rate is up to 250 kHz.
- What is the power supply voltage range for the ADS8326?
The power supply voltage range is from 2.7V to 5.5V.
- How does the ADS8326 handle power consumption?
The ADS8326 consumes very little power and enters power-down mode when the conversion is complete or when the CS signal is high.
- What type of digital interface does the ADS8326 use?
The ADS8326 uses a synchronous 3-wire serial interface.
- What is the significance of the external reference voltage for the ADS8326?
The external reference voltage sets the analog input range and affects the least significant bit (LSB) size and noise performance.
- How can noise be reduced in the ADS8326?
Noise can be reduced by averaging consecutive conversion results or using digital filters for AC signals.
- What precautions should be taken for the physical layout of the ADS8326 circuitry?
Care should be taken to ensure clean power supply, ground connections, and proper bypassing to minimize noise and voltage variations.
- Can the ADS8326 be used in battery-powered devices?
Yes, the ADS8326 is suitable for battery-powered devices due to its low power consumption.
- What is the package type of the ADS8326IBDGKTG4?
The package type is an 8-pin VSSOP.
