Specifications
| Attribute | Value |
| Package / Case | Tube |
| Part Status | Active |
| Number of Bits | 31 |
| Sampling Rate(Per Second) | 4k |
| Number of Inputs | 1 |
| Input Type | Differential, Single Ended |
| Data Interface | SPI |
| Configuration | ADC |
| Number of A/D Converters | 1 |
| Architecture | Sigma-Delta |
| Reference Type | External |
| Voltage - Supply, Analog | 5V |
| Voltage - Supply, Digital | 1.65V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C |
| Supplier Device Package | 24-TSSOP |
Overview
Description
The ADS1281IPW is a high-precision, 24-bit delta-sigma analog-to-digital converter (ADC) from Texas Instruments, designed for demanding applications like seismic monitoring, medical instrumentation, and industrial sensing.
### Key Features:
- Ultra-High Resolution: 24-bit ADC with low noise (1.1 µV RMS at 250 SPS).
- Flexible Data Rates: Supports 250 SPS to 4 kSPS.
- Integrated Features: On-chip PGA (gain up to 128x), oscillator, and voltage reference.
- Low Power: Consumes just 3.5 mW at 250 SPS.
- Interface: SPI-compatible serial interface.
- Package: 16-pin TSSOP (IPW).
### Applications:
- Seismic data acquisition
- Medical ECG/EEG systems
- Precision industrial sensors
The ADS1281IPW excels in environments requiring high accuracy, low noise, and low power consumption. Its integrated components simplify system design while maintaining exceptional performance.
### Key Features:
- Ultra-High Resolution: 24-bit ADC with low noise (1.1 µV RMS at 250 SPS).
- Flexible Data Rates: Supports 250 SPS to 4 kSPS.
- Integrated Features: On-chip PGA (gain up to 128x), oscillator, and voltage reference.
- Low Power: Consumes just 3.5 mW at 250 SPS.
- Interface: SPI-compatible serial interface.
- Package: 16-pin TSSOP (IPW).
### Applications:
- Seismic data acquisition
- Medical ECG/EEG systems
- Precision industrial sensors
The ADS1281IPW excels in environments requiring high accuracy, low noise, and low power consumption. Its integrated components simplify system design while maintaining exceptional performance.
Equivalent
The ADS1281IPW is a high-precision, 24-bit delta-sigma ADC. Equivalent or similar products include:
- ADS1282 (higher channel count, similar performance)
- ADS1278 (multi-channel, lower resolution)
- LTC2500-32 (32-bit, high-performance alternative)
- AD7768 (24-bit, high-speed alternative)
- MAX11270 (24-bit, low-power alternative)
These alternatives vary in features like speed, power, and channel count but offer comparable precision.
- ADS1282 (higher channel count, similar performance)
- ADS1278 (multi-channel, lower resolution)
- LTC2500-32 (32-bit, high-performance alternative)
- AD7768 (24-bit, high-speed alternative)
- MAX11270 (24-bit, low-power alternative)
These alternatives vary in features like speed, power, and channel count but offer comparable precision.
Features
The ADS1281IPW is a high-performance, 24-bit delta-sigma ADC with the following key features:
- Ultra-High Resolution: 24-bit ADC with low noise (2.5 µV RMS at 250 SPS).
- High Sampling Rate: Up to 4 kSPS in high-speed mode.
- Low Power: Consumes 3.5 mW (normal mode) and 0.7 mW in standby.
- Integrated Features: On-chip PGA (gain = 1, 2, 4, 8, 16, 32, 64, 128), oscillator, and voltage reference.
- Flexible Interface: SPI-compatible serial interface.
- Wide Supply Range: 2.7 V to 5.25 V (analog & digital).
- Applications: Seismic monitoring, precision instrumentation, medical devices.
Compact TSSOP-16 package.
- Ultra-High Resolution: 24-bit ADC with low noise (2.5 µV RMS at 250 SPS).
- High Sampling Rate: Up to 4 kSPS in high-speed mode.
- Low Power: Consumes 3.5 mW (normal mode) and 0.7 mW in standby.
- Integrated Features: On-chip PGA (gain = 1, 2, 4, 8, 16, 32, 64, 128), oscillator, and voltage reference.
- Flexible Interface: SPI-compatible serial interface.
- Wide Supply Range: 2.7 V to 5.25 V (analog & digital).
- Applications: Seismic monitoring, precision instrumentation, medical devices.
Compact TSSOP-16 package.
Pinout
The ADS1281IPW is a 28-pin TSSOP package ADC with the following key functions:
- Pins 1-4, 6-9, 11-14, 16-19, 21-24, 26-28: Analog/digital power, reference, and I/O (e.g., VREFP, VREFN, AVDD, DVDD, CLK, DIN, DOUT, DRDY).
- Pin 5 (RESET): Reset input.
- Pin 10 (SYNC): Synchronization input.
- Pin 15 (MODE): Selects between normal and duty-cycle modes.
- Pin 20 (PWDN): Power-down control.
- Pin 25 (AINP): Positive analog input.
It’s a 24-bit delta-sigma ADC with high precision for seismic, industrial, and medical applications.
- Pins 1-4, 6-9, 11-14, 16-19, 21-24, 26-28: Analog/digital power, reference, and I/O (e.g., VREFP, VREFN, AVDD, DVDD, CLK, DIN, DOUT, DRDY).
- Pin 5 (RESET): Reset input.
- Pin 10 (SYNC): Synchronization input.
- Pin 15 (MODE): Selects between normal and duty-cycle modes.
- Pin 20 (PWDN): Power-down control.
- Pin 25 (AINP): Positive analog input.
It’s a 24-bit delta-sigma ADC with high precision for seismic, industrial, and medical applications.
Manufacturer
The ADS1281IPW is manufactured by Texas Instruments (TI), a leading global semiconductor company.
TI specializes in designing and producing analog and embedded processing chips, serving industries like industrial, automotive, consumer electronics, and communications. Known for high-performance data converters, power management ICs, and microcontrollers, TI is a key player in precision analog technology.
The ADS1281IPW is a high-resolution, 24-bit delta-sigma ADC, reflecting TI's expertise in precision measurement solutions.
TI specializes in designing and producing analog and embedded processing chips, serving industries like industrial, automotive, consumer electronics, and communications. Known for high-performance data converters, power management ICs, and microcontrollers, TI is a key player in precision analog technology.
The ADS1281IPW is a high-resolution, 24-bit delta-sigma ADC, reflecting TI's expertise in precision measurement solutions.
Application
The ADS1281IPW is a high-precision, 24-bit delta-sigma ADC designed for demanding applications requiring ultra-low noise and high resolution. Key application areas include:
1. Seismic Monitoring – High-resolution data acquisition for geophysical exploration.
2. Precision Instrumentation – Medical devices, analytical equipment, and lab instruments.
3. Energy Exploration – Downhole drilling and reservoir monitoring.
4. Industrial Process Control – High-accuracy sensor measurements in harsh environments.
5. Vibration Analysis – Structural health monitoring and machinery diagnostics.
Its low noise, wide dynamic range, and robust performance make it ideal for critical measurement systems.
1. Seismic Monitoring – High-resolution data acquisition for geophysical exploration.
2. Precision Instrumentation – Medical devices, analytical equipment, and lab instruments.
3. Energy Exploration – Downhole drilling and reservoir monitoring.
4. Industrial Process Control – High-accuracy sensor measurements in harsh environments.
5. Vibration Analysis – Structural health monitoring and machinery diagnostics.
Its low noise, wide dynamic range, and robust performance make it ideal for critical measurement systems.
Package
The ADS1281IPW comes in a TSSOP-28 package. This is a Thin Shrink Small Outline Package with 28 pins, suitable for space-constrained applications. It offers good thermal and electrical performance for high-precision analog-to-digital converters.
