Overview
The ADS1262IPW from Texas Instruments is a high-precision, 32-bit delta-sigma analog-to-digital converter (ADC) designed for demanding sensor applications. This device is part of the ADS126x family, which includes the ADS1262 and ADS1263 models. The ADS1262IPW is particularly suited for applications requiring high accuracy and low noise, such as factory automation, instrumentation, and various sensor measurements.
It features an integrated programmable gain amplifier (PGA), a 2.5-V internal voltage reference, and internal fault monitors. The device is available in a 28-pin TSSOP package and is fully specified over a temperature range of –40°C to +125°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 32-bit | |
| Data Rates | 2.5 SPS to 38,400 SPS | |
| PGA Gain | 1 to 32 | |
| Analog Inputs | 11 multifunction analog inputs | |
| Offset Drift | 1 nV/°C | |
| Gain Drift | 0.5 ppm/°C | |
| Noise | 7 nV RMS (2.5 SPS, gain = 32) | |
| Linearity | 3 ppm | |
| Internal Voltage Reference | 2.5 V, temperature drift: 2 ppm/°C | |
| Package | 28-pin TSSOP | |
| Operating Temperature Range | –40°C to +125°C |
Key Features
- Precision, 32-bit delta-sigma ADC with high-accuracy architecture
- Differential input, CMOS PGA with gains from 1 to 32
- 11 multifunction analog inputs
- 2.5-V internal voltage reference with low temperature drift
- Single-cycle settled conversions and 50-Hz and 60-Hz rejection
- Dual sensor excitation current sources suitable for direct RTD measurement
- Internal fault monitors and internal ADC test signal
- 8 general-purpose inputs/outputs
- Low noise and low drift characteristics
Applications
- Factory automation and control: analog input modules, temperature controllers, weigh modules
- Instrumentation: process analytics, lab and field instrumentation, weigh scales
- Sensor applications: strain-gauge sensors, thermocouples, resistance temperature devices (RTD)
Q & A
- What is the resolution of the ADS1262IPW ADC?
The ADS1262IPW has a 32-bit resolution.
- What are the data rates supported by the ADS1262IPW?
The data rates range from 2.5 SPS to 38,400 SPS.
- What is the gain range of the PGA in the ADS1262IPW?
The PGA gain ranges from 1 to 32.
- How many analog inputs does the ADS1262IPW have?
The device has 11 multifunction analog inputs.
- What is the temperature drift of the internal voltage reference?
The internal voltage reference has a temperature drift of 2 ppm/°C.
- Does the ADS1262IPW have built-in fault monitoring?
- What type of package is the ADS1262IPW available in?
The device is available in a 28-pin TSSOP package.
- What is the operating temperature range of the ADS1262IPW?
The operating temperature range is from –40°C to +125°C.
- What are some common applications for the ADS1262IPW?
- Does the ADS1262IPW have any special features for noise rejection?
