Overview
The ADS1120IPWR, produced by Texas Instruments, is a precision, 16-bit analog-to-digital converter (ADC) designed for applications requiring high accuracy and low power consumption. This device is particularly suited for measuring small sensor signals and is integrated with several features to reduce system cost and component count. It offers a flexible input multiplexer, a low-noise programmable gain amplifier (PGA), two programmable excitation current sources, a voltage reference, an oscillator, a low-side switch, and a precision temperature sensor.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 bits |
| Data Rate | Up to 2000 samples-per-second (SPS) |
| Supply Voltage Range | 2.3 V to 5.5 V |
| Current Consumption | As low as 120 µA in duty-cycle mode |
| Programmable Gain | 1 V/V to 128 V/V |
| Input Configuration | Two differential or four single-ended inputs |
| Package Options | Leadless VQFN-16, TSSOP-16 |
| Operating Temperature Range | –40°C to +125°C |
Key Features
- Low current consumption and low power operation
- Programmable gain amplifier (PGA) with gains up to 128 V/V
- Flexible input multiplexer supporting two differential or four single-ended inputs
- Integrated voltage reference, oscillator, and precision temperature sensor
- Two programmable excitation current sources
- Low-side switch for additional functionality
- Digital filter offering simultaneous 50-Hz and 60-Hz rejection
Applications
- Weigh scales
- Portable instrumentation
- Factory automation and process controls
- Measurements of small sensor signals such as resistance temperature detectors (RTDs), thermocouples, thermistors, and bridge sensors
Q & A
- What is the resolution of the ADS1120IPWR ADC?
The ADS1120IPWR has a resolution of 16 bits. - What is the maximum data rate of the ADS1120IPWR?
The maximum data rate is up to 2000 samples-per-second (SPS). - What is the supply voltage range for the ADS1120IPWR?
The supply voltage range is from 2.3 V to 5.5 V. - How much current does the ADS1120IPWR consume in duty-cycle mode?
The current consumption is as low as 120 µA in duty-cycle mode. - What are the programmable gain options for the ADS1120IPWR?
The programmable gain ranges from 1 V/V to 128 V/V. - What types of input configurations are supported by the ADS1120IPWR?
The device supports two differential or four single-ended inputs. - In what packages is the ADS1120IPWR available?
The ADS1120IPWR is available in leadless VQFN-16 and TSSOP-16 packages. - What is the operating temperature range of the ADS1120IPWR?
The operating temperature range is from –40°C to +125°C. - What types of sensors can the ADS1120IPWR measure?
The device can measure small sensor signals such as RTDs, thermocouples, thermistors, and bridge sensors. - Does the ADS1120IPWR have built-in noise rejection features?
Yes, the digital filter offers simultaneous 50-Hz and 60-Hz rejection.
