Overview
The ADS1244IDGSRG4, produced by Texas Instruments, is a low-power, 24-bit analog-to-digital converter (ADC) designed for high-resolution measurements in space- and power-constrained systems. It features a 3rd-order delta-sigma modulator and a digital filter, providing excellent performance and very low power consumption. The device is packaged in an MSOP-10 package and is suitable for portable devices and other demanding applications.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 24-bit (20-bit effective) | |
| Current Consumption | 90 µA | |
| Analog Input Range | ±5V (differential) | |
| Sample Rate | 15 samples per second (sps) | |
| Analog Supply Voltage | 2.5V to 5.25V | |
| Digital Supply Voltage | 1.8V to 3.6V | |
| Integral Non-Linearity (INL) | 0.0002% (typ), 0.0008% (max) | |
| Power Dissipation | < 270 µW (normal operation), < 1 µW (Sleep Mode) | |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- Low power consumption with 90 µA current and less than 270 µW power dissipation in normal operation.
- Simple 2-wire serial interface for data retrieval, self-calibration, and Sleep Mode control.
- Simultaneous 50Hz and 60Hz rejection with single-cycle settling.
- Self-calibration at power-up to minimize offset and gain errors.
- Support for single conversions with Sleep Mode to dramatically reduce power dissipation between measurements.
- Easily connects to microcontrollers such as the MSP430.
- Well-suited for multichannel measurement systems.
Applications
- Portable devices and battery-powered systems.
- High-resolution measurements in industrial, medical, and scientific instruments.
- Multichannel measurement systems requiring synchronized sampling.
- Systems requiring low power consumption and high accuracy.
Q & A
- What is the resolution of the ADS1244IDGSRG4?
The ADS1244IDGSRG4 has a 24-bit resolution with 20-bit effective resolution.
- What is the current consumption of the ADS1244IDGSRG4?
The current consumption is typically 90 µA.
- What is the analog input range of the ADS1244IDGSRG4?
The analog input range is ±5V differential.
- What is the sample rate of the ADS1244IDGSRG4?
The sample rate is 15 samples per second (sps).
- What are the power supply voltage ranges for the ADS1244IDGSRG4?
The analog supply voltage range is 2.5V to 5.25V, and the digital supply voltage range is 1.8V to 3.6V.
- How does the ADS1244IDGSRG4 handle 50Hz and 60Hz noise?
The device features simultaneous 50Hz and 60Hz rejection with single-cycle settling.
- What is the power dissipation of the ADS1244IDGSRG4 in normal operation and Sleep Mode?
In normal operation, the power dissipation is less than 270 µW, and in Sleep Mode, it is less than 1 µW.
- Can the ADS1244IDGSRG4 be used in multichannel measurement systems?
Yes, it is well-suited for multichannel measurement systems requiring synchronized sampling.
- How does the ADS1244IDGSRG4 connect to microcontrollers?
The device easily connects to microcontrollers such as the MSP430.
- What is the operating temperature range of the ADS1244IDGSRG4?
The operating temperature range is -40°C to +85°C.
