Overview
The ADS112U04IPWR, produced by Texas Instruments, is a precision 16-bit analog-to-digital converter (ADC) designed to measure small sensor signals with high accuracy. This device is part of the ADS112U04 family and is packaged in a 16-pin TSSOP package. It features a wide supply range of 2.3 V to 5.5 V, making it versatile for various applications. The ADS112U04IPWR integrates multiple functions, including a low-noise programmable gain amplifier (PGA), two programmable excitation current sources, a voltage reference, an oscillator, and a precision temperature sensor. This integration reduces system cost and component count, making it ideal for industrial and medical applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16 Bits | |
| Data Rate | Up to 2000 SPS (Turbo mode) | SPS |
| Supply Voltage | 2.3 V to 5.5 V | V |
| PGA Gain | 1 to 128 | |
| Input Type | 2 differential or 4 single-ended inputs | |
| Temperature Range | –40°C to +125°C | °C |
| Package Type | 16-pin TSSOP | |
| Internal Reference Voltage | 2.048 V | V |
| Excitation Current Sources | 10, 50, 100, 250, 500, 1000, 1500 µA | µA |
Key Features
- Programmable Gain Amplifier (PGA): Offers gains up to 128, making it suitable for measuring small sensor signals such as those from RTDs, thermocouples, thermistors, and resistive bridge sensors.
- Flexible Input Multiplexer (MUX): Allows for two differential or four single-ended inputs.
- Programmable Data Rates: Supports data rates up to 2000 samples per second (SPS) in turbo mode.
- Internal Voltage Reference: A 2.048 V reference voltage with high accuracy and low drift.
- UART Interface: A 2-wire, UART-compatible interface for easy communication and minimal digital isolation channels.
- Precision Temperature Sensor: Integrated for temperature measurements.
- Low-Noise and High CMRR: Offers low noise and high common-mode rejection ratio (CMRR) for accurate measurements in noisy environments.
Applications
- PLC and DCS Analog Input Modules: Suitable for industrial control systems.
- Temperature Controllers: Ideal for precise temperature control in various industrial settings.
- Climate Chambers and Industrial Ovens: Used for accurate temperature and sensor signal measurements.
- Patient Monitoring Systems: For measuring body temperature, blood pressure, and other vital signs.
Q & A
- What is the resolution of the ADS112U04IPWR?
The ADS112U04IPWR has a 16-bit resolution. - What is the maximum data rate of the ADS112U04IPWR?
The maximum data rate is up to 2000 samples per second (SPS) in turbo mode. - What is the supply voltage range of the ADS112U04IPWR?
The supply voltage range is from 2.3 V to 5.5 V. - What types of inputs does the ADS112U04IPWR support?
The device supports two differential or four single-ended inputs. - What is the temperature range of the ADS112U04IPWR?
The operating temperature range is from –40°C to +125°C. - What is the package type of the ADS112U04IPWR?
The device is packaged in a 16-pin TSSOP package. - Does the ADS112U04IPWR have an internal voltage reference?
Yes, it has an internal 2.048 V voltage reference. - What communication interface does the ADS112U04IPWR use?
The device uses a 2-wire, UART-compatible interface. - Is the ADS112U04IPWR suitable for noisy industrial environments?
Yes, it offers high CMRR and noise rejection, making it suitable for noisy industrial applications. - What are some common applications of the ADS112U04IPWR?
Common applications include PLC and DCS analog input modules, temperature controllers, climate chambers, industrial ovens, and patient monitoring systems.
