Overview
The ADS1120IPW is a high-resolution, low-power analog-to-digital converter (ADC) from Texas Instruments. Designed for precise measurement and control applications, this device features 16-bit resolution, a 2-kSPS sampling rate, and a four-channel configuration. It utilizes a delta-sigma architecture combined with a digital filter to achieve precise measurements with low power consumption. The ADS1120IPW is housed in a compact TSSOP-16 package, making it suitable for space-constrained designs.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 16 |
| Number of Analog In Channels | 4 (two differential or four single-ended) |
| Sampling Rate | Up to 2 kSPS |
| Input Type | Differential, Single-Ended |
| Architecture | Sigma-Delta |
| Analog Supply Voltage | 2.3 V to 5.5 V |
| Digital Supply Voltage | 2.3 V to 5.5 V |
| Operating Temperature | -40°C to 125°C |
| Package | TSSOP-16 |
| Interface Type | SPI (Mode 1) |
| Programmable Gain | 1 V/V to 128 V/V |
| Power Consumption | As low as 120 µA in duty-cycle mode |
Key Features
- High-Resolution ADC: Provides precise analog-to-digital conversion with 16-bit resolution.
- Low Power Consumption: Optimized for power-sensitive applications, offering low power consumption as low as 120 µA in duty-cycle mode.
- Programmable Gain Amplification: Allows for adaptive gain adjustment from 1 V/V to 128 V/V to suit varied input signal levels.
- Compact Package: The TSSOP-16 package ensures compact design and reduced board area utilization.
- Integrated Features: Includes programmable excitation current sources, an internal 2.048-V reference, an internal oscillator, and a precision temperature sensor.
- Serial Interface: Supports SPI-compatible interface (Mode 1) for easy integration into digital systems.
- 50/60 Hz Rejection: Offers simultaneous 50-Hz and 60-Hz rejection at 20 SPS with single-cycle settling digital filter.
Applications
- Data Acquisition Systems: Used in data acquisition systems requiring high-resolution, low-noise signal processing.
- Sensing and Measurement Applications: Suitable for various sensing and measurement applications where precise analog-to-digital conversion is necessary.
- Automotive and Industrial Systems: Applied in automotive and industrial systems that mandate high-resolution data acquisition with low power consumption.
- Portable Instrumentation: Ideal for portable instrumentation, sensor interfaces, and industrial control systems.
Q & A
- Q: What is the sampling rate of the ADS1120IPW?
A: The ADS1120IPW features a sampling rate of up to 2 kSPS. - Q: Is the ADS1120IPW suitable for industrial or automotive applications?
A: Yes, the ADS1120IPW is designed for operation in harsh environments typical of industrial and automotive applications, with a temperature range spanning -40°C to 125°C. - Q: What is the resolution of the ADS1120IPW?
A: The ADS1120IPW has a 16-bit resolution. - Q: What types of input signals can the ADS1120IPW handle?
A: The ADS1120IPW can handle both differential and single-ended input signals. - Q: What is the power consumption of the ADS1120IPW?
A: The power consumption is as low as 120 µA in duty-cycle mode. - Q: Does the ADS1120IPW have programmable gain?
A: Yes, the ADS1120IPW offers programmable gain from 1 V/V to 128 V/V. - Q: What interface does the ADS1120IPW use?
A: The ADS1120IPW supports an SPI-compatible interface (Mode 1). - Q: Are there any integrated features in the ADS1120IPW?
A: Yes, it includes programmable excitation current sources, an internal 2.048-V reference, an internal oscillator, and a precision temperature sensor. - Q: What is the package type of the ADS1120IPW?
A: The ADS1120IPW is housed in a TSSOP-16 package. - Q: Are there any equivalents or alternatives to the ADS1120IPW?
A: Yes, alternatives include the ADS1115 from Texas Instruments and the AD7791 from Analog Devices.
