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Product Detailed Parameters
- Description：IC ADC 31BIT SIGMA-DELTA 28TSSOP
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Number of Bits：31
- Sampling Rate (Per Second)：4k
- Number of Inputs：2
- Input Type：Differential
- Data Interface：SPI
- Configuration：ADC
- Ratio - S/H:ADC：-
- Number of A/D Converters：1
- Architecture：Sigma-Delta
- Reference Type：External
- Voltage - Supply, Analog：5V
- Voltage - Supply, Digital：1.65V ~ 3.6V
- Features：PGA
- Operating Temperature：-40°C ~ 85°C
- Package / Case：28-TSSOP (0.173", 4.40mm Width)
- Supplier Device Package：28-TSSOP
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
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Overview
The ADS1282IPWG4 is a high-resolution, dual-channel analog-to-digital converter (ADC) from Texas Instruments, utilizing sigma-delta architecture. It features a 31-bit resolution and supports differential input signals with an SPI interface. The device operates on separate analog and digital power supplies, ranging from 4.75 V to 5.25 V for analog and 1.65 V to 3.6 V for digital domains. It achieves a maximum sampling rate of 4 kS/s and delivers a signal-to-noise ratio of 130 dB. Key linearity specifications include a differential nonlinearity of +/- 1 LSB and integral nonlinearity of 0.0004% FSR. The component is housed in a 28-pin TSSOP package and functions within a temperature range of -40°C to +85°C.
Feature Summary
- Integrates a programmable gain amplifier (PGA) for flexible signal conditioning.
- Employs a fourth-order stable delta-sigma modulator combined with sinc and FIR low-pass filters for superior noise performance.
- Supports external reference voltage inputs to allow system-specific calibration.
Applications
- Seismic data acquisition systems
- Energy exploration equipment
- High-precision industrial process control
Procurement Notes
Verify the G4 suffix indicates lead-free compliance and RoHS standards when sourcing. Confirm the specific package variant matches the required PCB footprint. Ensure the supplier provides official datasheets to validate the electrical parameters against the design requirements.
Selection Notes
Select this model for applications requiring two independent channels with high resolution. Compare against single-channel variants if only one input is needed. Verify that the external reference voltage capability aligns with the system's precision requirements.
Part Context
This component belongs to the ADS1282 series, designed for demanding environments like seismic monitoring. It shares architectural similarities with the ADS1281 but offers dual-channel capability instead of a single channel. The IPW designation specifies the surface-mount TSSOP-28 package type.
Replacement Considerations
- ADS1282IPW
