Overview
The ADS1282IPW is an ultra-high-resolution, single-chip analog-to-digital converter (ADC) designed by Texas Instruments. It is specifically tailored for the demanding needs of energy exploration and seismic monitoring environments. The device integrates a low-noise programmable gain amplifier (PGA) and a two-channel input multiplexer (mux), making it highly suitable for applications requiring high accuracy and low noise.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 31 bits |
| Sample Rate | 250 SPS to 4 kSPS |
| Signal-to-Noise Ratio (SNR) | 130 dB (at 250 SPS) |
| Total Harmonic Distortion (THD) | -122 dB |
| Integral Non-Linearity (INL) | 0.5 ppm |
| Noise of PGA | 5 nV/√Hz |
| Power Consumption | 25 mW (active), 10 µW (shutdown) |
| Analog Supply | Unipolar (+5 V) or Bipolar (±2.5 V) |
| Digital Supply | 1.8 V to 3.3 V |
| Package | TSSOP-28 |
| Operating Temperature Range | -40°C to +85°C (max +125°C) |
Key Features
- High Resolution: 130-dB SNR at 250 SPS
- High Accuracy: THD of -122 dB and INL of 0.5 ppm
- Low-Noise PGA: 5 nV/√Hz noise and high input impedance
- Two-Channel Input Mux: Flexible input multiplexer with external and internal self-test connections
- Flexible Digital Filter: Sinc + FIR + IIR (selectable), linear or minimum phase response, programmable high-pass filter
- Filter Bypass Option: Allows use with post-processing filters
- Low Power Consumption: 25 mW active, 10 µW shutdown
- Offset and Gain Calibration Engine: On-chip gain and offset scaling registers
- SYNC Input: Synchronizes conversions of multiple ADS1282s and accepts external clock input
Applications
The ADS1282IPW is primarily designed for energy exploration and seismic monitoring environments. Its high resolution, low noise, and high accuracy make it ideal for applications such as:
- Seismic data acquisition
- Energy exploration
- Geophysical surveys
- High-precision measurement systems
Q & A
- What is the resolution of the ADS1282IPW?
The ADS1282IPW has a resolution of 31 bits. - What are the sample rates available for the ADS1282IPW?
The sample rates range from 250 SPS to 4 kSPS. - What is the signal-to-noise ratio (SNR) of the ADS1282IPW?
The SNR is 130 dB at 250 SPS. - What is the total harmonic distortion (THD) of the ADS1282IPW?
The THD is -122 dB. - What is the integral non-linearity (INL) of the ADS1282IPW?
The INL is 0.5 ppm. - What is the noise level of the PGA in the ADS1282IPW?
The noise level of the PGA is 5 nV/√Hz. - What are the power consumption levels of the ADS1282IPW?
The power consumption is 25 mW in active mode and 10 µW in shutdown mode. - What are the analog and digital supply voltage ranges for the ADS1282IPW?
The analog supply can be unipolar (+5 V) or bipolar (±2.5 V), and the digital supply ranges from 1.8 V to 3.3 V. - In what package is the ADS1282IPW available?
The ADS1282IPW is available in a TSSOP-28 package. - What is the operating temperature range of the ADS1282IPW?
The operating temperature range is -40°C to +85°C, with a maximum operating range to +125°C.
