Overview
The ADS1216Y/2KG4, produced by Texas Instruments, is a high-precision, 8-channel, 24-bit analog-to-digital converter (ADC). This delta-sigma ADC is designed for applications requiring high resolution and wide dynamic range. It operates from a supply voltage range of 2.7V to 5.25V and features a programmable gain amplifier (PGA) with gains ranging from 1 to 128. The device includes on-chip calibration, an 8-bit digital-to-analog converter (DAC) for offset correction, and burnout current sources for sensor fault detection. The ADS1216Y/2KG4 is suitable for various high-resolution measurement applications.
Key Specifications
| Parameter | Conditions | Min | Max | Unit | |
|---|---|---|---|---|---|
| Resolution | 24 | 24 | 24 | Bits | |
| Integral Nonlinearity (INL) | End-point fit | ±0.0015 | % of FS | ||
| Offset Error | 7.5 | ppm of FS | |||
| Gain Error | 0.005 | % | |||
| Programmable Gain Amplifier (PGA) | 1 | 128 | |||
| Analog Input Range (Buffer ON) | AGND + 0.05 | AVDD - 1.5 | V | ||
| Power Supply Voltage (AVDD) | 4.75 | 5.25 | V | ||
| Power Dissipation | PGA = 1, buffer OFF, REFEN = 0, IDACS OFF, DVDD = 5V | 1.6 | 2.5 | mW | |
| Operating Temperature Range | -40 | +85 | °C |
Key Features
- 24-bit resolution with no missing codes
- Programmable gain amplifier (PGA) with gains from 1 to 128
- On-chip 1.25V or 2.5V voltage reference
- External differential reference input
- On-chip calibration and offset DAC for offset correction
- Burnout current sources for sensor fault detection
- SPI-compatible serial interface
- Low power consumption (< 1mW)
- High input impedance for direct connection to transducers or low-level voltage signals
Applications
- Industrial process control
- Liquid/gas chromatography
- Blood analysis
- Smart transmitters
- Portable instrumentation
- Weight scales
- Pressure transducers
Q & A
- What is the resolution of the ADS1216Y/2KG4?
The ADS1216Y/2KG4 has a 24-bit resolution with no missing codes.
- What are the gain ranges of the PGA in the ADS1216Y/2KG4?
The PGA provides gains ranging from 1 to 128.
- What is the operating temperature range of the ADS1216Y/2KG4?
The operating temperature range is from -40°C to +85°C.
- Does the ADS1216Y/2KG4 have on-chip calibration?
Yes, the device includes on-chip calibration.
- What is the power consumption of the ADS1216Y/2KG4?
The power consumption is less than 1mW.
- What type of serial interface does the ADS1216Y/2KG4 use?
The device uses an SPI-compatible serial interface.
- What are some common applications of the ADS1216Y/2KG4?
Common applications include industrial process control, liquid/gas chromatography, blood analysis, smart transmitters, portable instrumentation, weight scales, and pressure transducers.
- Does the ADS1216Y/2KG4 have burnout current sources?
Yes, the device includes burnout current sources for sensor fault detection.
- What is the input impedance of the ADS1216Y/2KG4 when the buffer is ON?
The input impedance is high, suitable for direct connection to transducers or low-level voltage signals.
- Can the ADS1216Y/2KG4 be used with external differential references?
Yes, the device supports external differential reference inputs.
