Overview
The ADS112C04IPWR is a precision, 16-bit, analog-to-digital converter (ADC) designed by Texas Instruments. This device is part of the ADS112C04 family and is specifically packaged in a 16-pin TSSOP (Thin Shrink Small Outline Package). It is tailored for applications that require high accuracy and low noise in measuring small sensor signals.
The ADS112C04IPWR features a wide supply range of 2.3 V to 5.5 V, making it versatile for various power supply conditions. It includes a programmable gain amplifier (PGA) with gains up to 128, and it supports data rates up to 2000 samples per second (SPS). The device also integrates a 2-wire I2C-compatible interface, supporting I2C bus speeds up to 1 Mbps.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16 Bits | |
| Data Rate | Up to 2000 SPS | |
| Programmable Gain | 1 to 128 | |
| Supply Voltage | 2.3 V to 5.5 V | V |
| Operating Temperature Range | –40°C to +125°C | °C |
| Package Type | TSSOP-16 | |
| I2C Interface Speed | Up to 1 Mbps | |
| Internal Reference Voltage | 2.048 V | V |
| Excitation Current Sources | 10, 50, 100, 250, 500, 1000, 1500 µA | µA |
| Temperature Sensor Resolution | 14 Bits | |
| Temperature Sensor Accuracy | ±0.25 °C (0°C to +85°C) | °C |
Key Features
- Flexible Input Multiplexer: Supports two differential or four single-ended inputs.
- Programmable Gain Amplifier (PGA): Offers gains up to 128, ideal for measuring small sensor signals.
- Integrated Excitation Current Sources: Provides multiple current settings from 10 µA to 1500 µA.
- Internal Voltage Reference: A 2.048 V reference with high accuracy and low drift.
- Precision Temperature Sensor: A 14-bit temperature sensor with high resolution and accuracy.
- I2C Interface: Supports I2C bus speeds up to 1 Mbps with two address pins for 16 different I2C addresses.
- Low Noise and High Accuracy: Offers noise-free resolution at low data rates and simultaneous 50-Hz and 60-Hz rejection in noisy industrial applications.
Applications
- Temperature Controllers: Suitable for precise temperature measurement and control.
- Heat Meters: Used in heat measurement and energy monitoring systems.
- Patient Monitoring Systems: For body temperature, blood pressure, and other vital sign monitoring.
- Industrial Automation: For measuring small sensor signals in noisy environments.
- Resistance Temperature Detectors (RTDs), Thermocouples, Thermistors, and Resistive Bridge Sensors: Ideal for various types of sensor signal measurements.
Q & A
- What is the resolution of the ADS112C04IPWR ADC?
The ADS112C04IPWR has a resolution of 16 bits.
- What are the programmable gain options for the PGA?
The PGA offers programmable gains from 1 to 128.
- What is the maximum data rate supported by the ADS112C04IPWR?
The device supports data rates up to 2000 samples per second (SPS).
- What is the operating temperature range of the ADS112C04IPWR?
The operating temperature range is from –40°C to +125°C.
- What type of interface does the ADS112C04IPWR use for communication?
The device uses a 2-wire I2C-compatible interface.
- How many different I2C addresses can be selected for the ADS112C04IPWR?
The device allows selection of 16 different I2C addresses using two address pins.
- What is the internal reference voltage of the ADS112C04IPWR?
The internal reference voltage is 2.048 V.
- What are the current settings available for the excitation current sources?
The excitation current sources offer settings from 10 µA to 1500 µA.
- What is the resolution of the integrated temperature sensor?
The temperature sensor has a resolution of 14 bits.
- What are some typical applications of the ADS112C04IPWR?
Typical applications include temperature controllers, heat meters, patient monitoring systems, and industrial automation.
