Overview
The ADS1219IRTER is a precision, 24-bit, analog-to-digital converter (ADC) produced by Texas Instruments. This device is designed to implement common system monitoring functions such as supply voltage, current, and temperature monitoring. It features a flexible input multiplexer (MUX), rail-to-rail input buffers, a programmable gain stage, a voltage reference, and an oscillator. The ADS1219IRTER is particularly suited for applications requiring high accuracy and low power consumption.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 24-bit | |
| Sample Rate | Up to 1 kSPS | |
| Supply Voltage Range | 2.3 V to 5.5 V | V |
| Operating Temperature Range | -40°C to 125°C | °C |
| Package Type | 16-pin WQFN or 16-pin TSSOP | |
| Number of Inputs | Two differential or four single-ended | |
| Internal Reference Voltage | 2.048 V, 5 ppm/°C (typ) drift | V |
| Internal Oscillator Accuracy | 2% (typ) | % |
| I2C Bus Speed Modes | Standard-Mode, Fast-Mode, Fast-Mode Plus | |
| I2C Addresses | 16 pin-configurable addresses | |
| Analog Supply Current | 250 µA (typ) in conversion mode with internal reference | µA |
| Digital Supply Current | 65 µA (typ) in conversion mode | µA |
Key Features
- Easy to use with only one register to program
- Current consumption as low as 315 µA (typ)
- Rail-to-rail input buffers to achieve high input impedance
- Programmable gains: 1 and 4
- Programmable data rates: up to 1 kSPS
- Up to 20 bits effective resolution
- Simultaneous 50-Hz and 60-Hz rejection at 20 SPS with single-cycle settling digital filter
- I2C-compatible interface supporting up to 1 Mbps
- 16 pin-configurable I2C addresses
Applications
- Battery test equipment
- Gas detectors
- Heat meters
- Optical modules
- Wearable fitness and activity trackers
Q & A
- What is the resolution of the ADS1219IRTER ADC?
The ADS1219IRTER has a 24-bit resolution. - What is the maximum sample rate of the ADS1219IRTER?
The maximum sample rate is up to 1 kSPS. - What is the supply voltage range for the ADS1219IRTER?
The supply voltage range is from 2.3 V to 5.5 V. - What types of input configurations are supported by the ADS1219IRTER?
The device supports two differential or four single-ended inputs. - What is the accuracy of the internal oscillator in the ADS1219IRTER?
The internal oscillator has an accuracy of 2% (typ). - What I2C bus speed modes are supported by the ADS1219IRTER?
The device supports Standard-Mode, Fast-Mode, and Fast-Mode Plus I2C bus speed modes. - How many I2C addresses can be configured for the ADS1219IRTER?
There are 16 pin-configurable I2C addresses. - What is the typical analog supply current for the ADS1219IRTER in conversion mode?
The typical analog supply current is 250 µA in conversion mode with the internal reference selected. - What is the typical digital supply current for the ADS1219IRTER in conversion mode?
The typical digital supply current is 65 µA in conversion mode. - What is the operating temperature range for the ADS1219IRTER?
The operating temperature range is from -40°C to 125°C.
