Overview
The ADS1222IPWRG4 is a precision, low-power, 24-bit analog-to-digital converter (ADC) produced by Texas Instruments. Designed for applications requiring high-resolution and low-noise performance, this ADC is ideal for industrial, medical, and instrumentation systems. Its market positioning targets engineers and developers working on data acquisition systems, sensor interfaces, and portable devices. The ADS1222IPWRG4 stands out for its ultra-low power consumption, high accuracy, and integrated programmable gain amplifier (PGA), making it a competitive choice for precision measurement applications.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Resolution | 24 | bits | |
| Sampling Rate | 40 | SPS | |
| Input Channels | 2 | Differential | |
| Supply Voltage | 2.3 to 5.5 | V | |
| Power Consumption | 325 | µA | Typical |
| Operating Temperature | -40 to 125 | °C | |
| Package | TSSOP-16 | ||
| Interface | SPI | ||
| PGA Gain | 1 to 128 | Programmable | |
| Reference Voltage | Internal/External | Configurable |
Key Features
- High Resolution: 24-bit ADC ensures precise measurements for sensitive applications.
- Low Power Consumption: Ideal for battery-powered and portable devices.
- Integrated PGA: Programmable gain amplifier enhances signal conditioning.
- Flexible Power Supply: Operates from 2.3V to 5.5V, suitable for various systems.
- SPI Interface: Simplifies communication with microcontrollers and processors.
Applications
The ADS1222IPWRG4 is widely used in applications requiring high-precision analog-to-digital conversion. Key fields include:
- Industrial Automation: Sensor signal conditioning and data acquisition in control systems.
- Medical Devices: Accurate measurement of biomedical signals in portable and wearable devices.
- Instrumentation: High-resolution data logging and analysis in test and measurement equipment.
- Consumer Electronics: Enhanced performance in audio and environmental sensing applications.
Q & A
1. What is the resolution of the ADS1222IPWRG4?
The ADS1222IPWRG4 has a resolution of 24 bits.
2. What is the sampling rate of this ADC?
The sampling rate is 40 samples per second (SPS).
3. How many input channels does it support?
It supports 2 differential input channels.
4. What is the power supply range?
The power supply range is 2.3V to 5.5V.
5. Is the ADS1222IPWRG4 suitable for battery-powered devices?
Yes, its low power consumption makes it ideal for battery-powered and portable devices.
6. Does it include a programmable gain amplifier?
Yes, it features an integrated PGA with a gain range of 1 to 128.
7. What is the operating temperature range?
The operating temperature range is -40°C to 125°C.
8. What interface does it use for communication?
It uses an SPI interface for communication.
9. Can the reference voltage be configured?
Yes, it supports both internal and external reference voltage configurations.
10. What package does the ADS1222IPWRG4 come in?
It comes in a TSSOP-16 package.
