Texas Instruments ADS1282IPW-1

The ADS1282IPW-1, produced by Texas Instruments, is an extremely high-performance, single-chip analog-to-digital converter (ADC) designed to meet the demanding needs of energy exploration and seismic monitoring environments. This ADC integrates a low-noise programmable gain amplifier (PGA) and a two-channel input multiplexer (MUX). It utilizes a fourth-order, inherently stable, delta-sigma (ΔΣ) modulator, which provides outstanding noise and linearity performance. The device is available in a compact TSSOP-28 package and is fully specified from –40°C to +85°C, with a maximum operating range to +125°C.

• Integrated PGA and MUX: The ADS1282 includes a low-noise PGA and a two-channel input multiplexer, allowing for flexible input configurations and high input impedance.
• Delta-Sigma Modulator: Utilizes a fourth-order, inherently stable delta-sigma modulator for outstanding noise and linearity performance.
• Digital Filter: Features a flexible digital filter with selectable data rates from 250 to 4000 SPS, and an adjustable high-pass filter corner frequency.
• Synchronization Input: The SYNC input allows for synchronization of multiple ADS1282 devices and accepts an external clock input for continuous alignment of conversions.
• Calibration and Scaling: On-chip gain and offset scaling registers support system calibration and sensor gain matching.
• Low Power Consumption: Operates at 25 mW in active mode and 10 µW in shutdown mode.

• Energy Exploration: Suitable for seismic monitoring and other energy exploration applications due to its high performance and robust design.
• Seismic Monitoring: Ideal for capturing high-resolution data in seismic monitoring environments.
• Chromatography and Other Exacting Applications: The high accuracy and low noise characteristics make it suitable for various precise measurement applications.

1. What is the primary function of the ADS1282IPW-1?

   The ADS1282IPW-1 is a high-performance, single-chip analog-to-digital converter (ADC) with an integrated low-noise programmable gain amplifier (PGA) and a two-channel input multiplexer (MUX).

2. What are the operating temperature ranges for the ADS1282IPW-1?

   The device is fully specified from –40°C to +85°C, with a maximum operating range to +125°C.

3. What are the power consumption characteristics of the ADS1282IPW-1?

   The device operates at 25 mW in active mode and 10 µW in shutdown mode.

4. What is the signal-to-noise ratio (SNR) of the ADS1282IPW-1?

   The SNR ranges from 120 dB to 124 dB.

5. What are the data rates supported by the ADS1282IPW-1?

   The device supports data rates from 250 SPS to 4000 SPS.

6. How does the synchronization input (SYNC) function in the ADS1282IPW-1?

   The SYNC input allows for synchronization of multiple ADS1282 devices and accepts an external clock input for continuous alignment of conversions.

7. What is the purpose of the PGA in the ADS1282IPW-1?

   The PGA provides low-noise amplification and high input impedance, making it easy to interface with geophones and hydrophones over a wide range of gains.

8. What types of digital filters are available in the ADS1282IPW-1?

   The device features a flexible digital filter with Sinc, FIR, and IIR options, and an adjustable high-pass filter corner frequency.

9. How does the ADS1282IPW-1 support system calibration?

   The device includes on-chip gain and offset scaling registers to support system calibration and sensor gain matching.

10. What is the typical noise density of the PGA in the ADS1282IPW-1?

    The PGA input voltage noise density is 5 nV/√Hz.

11. In what package is the ADS1282IPW-1 available?

    The device is available in a compact TSSOP-28 package.