My Inquiry
My Account
Texas Instruments ADS1282HIPW
- Part No.:
- ADS1282HIPW
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ADS1282HIPW.pdf
- Description:
- IC ADC 28TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,374
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADS1282HIPW from Texas Instruments is an ultra-high-precision, 32-bit delta-sigma ADC with integrated 1–64× PGA and dual-channel analog multiplexer, delivering 130-dB SNR at 250 SPS, ±0.5 ppm INL, and –122 dB THD - engineered for seismic monitoring and energy exploration instrumentation where microvolt-level resolution and long-term stability are critical.
For engineers reviewing the ADS1282HIPW datasheet, ADS1282HIPW pinout, ADS1282HIPW application, or ADS1282HIPW equivalent, key selection considerations include its fourth-order inherently stable modulator architecture, programmable sinc+FIR+IIR digital filter with selectable high-pass corner (0.1–10 Hz), low-noise 5 nV/√Hz PGA, TSSOP-28 package, and support for bipolar (±2.5 V) or unipolar (+5 V) analog supplies.
Technical Context
The ADS1282HIPW employs a fourth-order, 2+2 pipelined delta-sigma modulator with inherent stability and fast overrange detection (MFLAG output), enabling reliable recovery from input overdrive without data stream instability. Its on-chip digital filter supports three configurable output paths: sinc-only (up to 128 kSPS), sinc+FIR (250–4 kSPS), or sinc+FIR+IIR with adjustable high-pass filtering.
It integrates a chopper-stabilized, continuous-time differential PGA with 100 GΩ input impedance (chop off) and 1 GΩ (chop on), plus a two-channel MUX supporting five configurations - including dual-input measurement, common-mode test, and internal 400 Ω self-test - all optimized for geophone and hydrophone sensor interfacing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 31-bit no-missing-codes output; full 32-bit word available for maximum dynamic range utilization in post-processing. |
| SNR | 130 dB at 250 SPS (PGA = 1); enables detection of sub-100 nV signals in low-frequency seismic bands. |
| INL | ±0.5 ppm (0.00005% FSR); ensures <1 LSB error across full scale for calibration-critical instrumentation. |
| THD | –122 dB at 31.25 Hz (PGA = 1); suppresses harmonic distortion below quantization noise floor in precision measurements. |
| PGA Noise Density | 5 nV/√Hz (chop on); maintains signal integrity when amplifying high-impedance geophone outputs. |
| Digital Filter Data Rate | 250–4000 SPS (FIR mode); matches typical seismic sampling requirements while enabling anti-aliasing via programmable bandwidth. |
| High-Pass Corner | Adjustable 0.1–10 Hz; removes DC drift and thermal offset without phase distortion in linear-phase mode. |
Pinout & Package
TSSOP-28 package with 0.65 mm pitch; thermally enhanced layout featuring four dedicated DGND pins (6, 12, 25, 27) and separate AVDD/AVSS/DVDD supplies for analog/digital isolation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLK (1) | Master clock input | Accepts 1–4.096 MHz crystal or external clock; drives internal modulator and digital logic timing. |
| SCLK (2) | Serial clock input | Controls SPI interface timing; max rate = fCLK/2; supports register read/write and data capture. |
| DRDY (3) | Data ready output | Falling edge indicates valid conversion result ready on DOUT; used for interrupt-driven data acquisition. |
| DOUT (4) | Serial data output | Transmits 24- or 32-bit conversion results MSB-first; synchronized to SCLK falling edge. |
| DIN (5) | Serial data input | Accepts SPI commands for configuration register writes (e.g., PGA gain, filter mode, SYNC control). |
| DGND (6,12,25,27) | Digital ground reference | Pins 6/12/25/27 provide low-inductance return path for digital I/O and DVDD; pin 12 is primary reference point. |
| CAPP/CAPN (13–14) | PGA differential outputs | Require 10 nF C0G capacitor between pins to suppress modulator switching transients and serve as anti-alias filter. |
| AINP1/AINN1 (17–18) | Primary differential analog input | Supports ±2.5 V full-scale (PGA = 1) with 100 MΩ common-mode impedance; ESD-protected to ±0.3 V beyond rails. |
| VREFP/VREFN (22–21) | Reference voltage inputs | Accept 0.5–5 V differential reference; internal 85 kΩ impedance enables direct connection to precision voltage references. |
| PWDN (23) | Power-down control | Active-low input; reduces supply current to 10 μW; register state not retained - use STANDBY for retention. |
Key Features
| Feature | Design Value |
|---|---|
| Inherently stable 4th-order ΔΣ modulator | Guarantees bounded output under overload; eliminates need for external watchdog or reset circuitry during sensor transients. |
| Programmable sinc+FIR+IIR digital filter | Enables trade-off between latency (linear-phase FIR: 31/fDATA) and stopband attenuation (135 dB) without external DSP. |
| Chopper-stabilized PGA with 5 nV/√Hz noise | Reduces 1/f noise and offset drift to <0.02 μV/°C, critical for multi-hour seismic data logging stability. |
| Two-channel MUX with 5 test configurations | Supports in-system diagnostics (e.g., shorted-input INL verification, common-mode rejection validation) without board rework. |
| Synchronization input (SYNC) | Resets both modulator and digital filter simultaneously; enables precise time-aligned sampling across multiple ADS1282HIPW devices. |
Applications
| Seismic Geophone Array | Energy Exploration Logging Tool |
|---|---|
Use Scenario: Deployed in borehole arrays to detect microseismic events (<1 mV) across 0.1–200 Hz band with >120 dB dynamic range. IC Role / Device Role / Timing Role: Primary ADC front-end digitizing geophone outputs; provides synchronized, low-drift conversion with on-chip PGA gain matching. Use Value: 130-dB SNR at 250 SPS resolves sub-nanovolt signals; MUX self-test validates channel integrity before downhole deployment. |
Use Scenario: Embedded in wireline logging tools measuring resistivity, gamma-ray, and acoustic waveforms in high-temperature (up to +125°C) oilfield environments. IC Role / Device Role / Timing Role: High-accuracy data acquisition core with calibrated offset/gain registers compensating for thermal drift in downhole electronics. Use Value: ±0.5 ppm INL and 0.02 μV/°C offset drift ensure <0.01% measurement error over full temperature range; TSSOP-28 meets ruggedized PCB layout requirements. |
| High-Accuracy Portable Spectrometer | Low-Frequency Structural Health Monitoring |
Use Scenario: Battery-powered field spectrometer requiring 24-bit+ resolution for absorbance quantification across UV-VIS-NIR bands with minimal power draw. IC Role / Device Role / Timing Role: Precision analog front-end ADC interfacing to photodiode transimpedance amplifier; operates in low-power standby between readings. Use Value: 25 mW normal operation + 10 μW power-down mode extends battery life; programmable HPF removes thermal baseline drift in ambient temperature shifts. |
Use Scenario: Long-term bridge or dam monitoring using MEMS accelerometers capturing sub-Hz vibration modes over months of continuous operation. IC Role / Device Role / Timing Role: Low-noise, low-drift digitizer for DC-coupled accelerometer outputs; uses SYNC to align with GPS-disciplined time stamps. Use Value: 5 nV/√Hz PGA noise preserves signal-to-noise ratio at 0.01 Hz; linear-phase FIR filter ensures zero-phase distortion for modal analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-resolution delta-sigma ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS1283IPW | Higher 132-dB SNR at 250 SPS; adds internal oscillator (no external CLK required); same TSSOP-28 package and register map. | Preferred for space-constrained designs eliminating clock source; lacks MFLAG overrange indicator and modulator bypass mode. | Select ADS1283IPW when system-level clock simplification outweighs need for real-time modulator status monitoring. |
| AD7768-1ACPZ | 8-channel, 24-bit sigma-delta ADC; 112-dB SNR at 256 kSPS; SPI interface; LFCSP-40 package; requires external PGA for sensor interfacing. | Optimized for multi-channel data acquisition systems; higher channel density but lower per-channel resolution and no integrated MUX/PGA. | Choose AD7768-1ACPZ for parallel multi-sensor systems where channel count > resolution priority; ADS1282HIPW remains superior for single-channel ultra-high-fidelity sensing. |
Compared with ADS1283IPW and AD7768-1ACPZ, the ADS1282HIPW uniquely combines single-channel 31-bit resolution, integrated PGA/MUX, and deterministic overrange recovery - making it irreplaceable in geophysical instrumentation demanding verified signal integrity under transient overload conditions.
Availability
ADS1282HIPW is available at Aetrix Electronics and suitable for seismic monitoring, energy exploration logging tools, and high-accuracy portable instrumentation requiring stable component supply across extended temperature ranges (–40°C to +125°C) and long product lifecycles.
Supply support for ADS1282HIPW includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision data acquisition and industrial signal chain solutions.
The ADS1282HIPW belongs to TI's high-resolution delta-sigma ADC product line, designed specifically for geophysical sensing, seismic data acquisition, and other applications demanding ultra-low noise, exceptional linearity, and robust operation in harsh environmental conditions.
FAQ
What is the maximum operating temperature specification for the ADS1282HIPW?
The ADS1282HIPW is fully specified from –40°C to +85°C, with a maximum operating junction temperature of +150°C and extended functionality validated up to +125°C ambient - making it suitable for downhole energy exploration tools and industrial environments where thermal resilience is critical. The device's offset drift of 0.02 μV/°C and gain drift of 2 ppm/°C (PGA = 1) ensure measurement stability across this full range.
Does the ADS1282HIPW support true bipolar input operation?
Yes, the ADS1282HIPW supports true bipolar analog input operation by configuring AVDD = +2.5 V and AVSS = –2.5 V, enabling a ±2.5 V differential input range at PGA = 1. This configuration allows ground-referenced sensor interfaces such as hydrophones and geophones without external level-shifting circuitry, while maintaining full 130-dB SNR performance at 250 SPS.
How does the SYNC input function in multi-device synchronization?
The SYNC input on the ADS1282HIPW resets both the modulator and on-chip digital filter simultaneously, ensuring deterministic alignment of conversion start times across multiple ADS1282HIPW devices. It accepts either a one-shot pulse for event-triggered acquisition or a continuously toggled frame clock locked to the desired data rate - enabling precise time-coherent sampling in distributed seismic arrays without external timing master.
What is the purpose of the MFLAG pin on the ADS1282HIPW?
The MFLAG pin on the ADS1282HIPW provides real-time modulator overrange detection: logic low indicates normal operation, while logic high signals that the modulator has exceeded its input range - a condition distinct from digital filter saturation. This hardware flag enables immediate system-level response (e.g., gain reduction or alert generation) before data corruption occurs, leveraging the device's inherently stable modulator architecture for predictable recovery.
Can the ADS1282HIPW operate with a 1.8-V digital supply?
Yes, the ADS1282HIPW supports DVDD from 1.65 V to 3.6 V, including 1.8 V operation. At 1.8 V, digital I/O thresholds are VIH ≥ 1.44 V and VIL ≤ 0.36 V, and DVDD current remains within specification (0.6–0.8 mA normal operation). This enables direct interfacing with low-voltage FPGAs and microcontrollers while maintaining full analog performance - critical for portable and battery-powered instrumentation designs.
ADS1282HIPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 28-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Number of Bits:
- -
- Sampling Rate (Per Second):
- -
- Number of Inputs:
- 2
- Input Type:
- -
- Data Interface:
- -
- Configuration:
- -
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- -
- Architecture:
- -
- Reference Type:
- -
- Voltage - Supply, Analog:
- -
- Voltage - Supply, Digital:
- -
- Features:
- -
- Operating Temperature:
- -
- Supplier Device Package:
- 28-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS1282HIPW FAQ
1.How can I place an order for ADS1282HIPW through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS1282HIPW on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADS1282HIPW reliable?
The price and inventory of ADS1282HIPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS1282HIPW is usually 5 days.
3.What payment methods are accepted for ADS1282HIPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS1282HIPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS1282HIPW?
ADS1282HIPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS1282HIPW order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADS1282HIPW?
For technical support, including ADS1282HIPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS1282HIPW requirements.
6.How does Aetrix verify that ADS1282HIPW is sourced from the original manufacturer or authorized distributors?
All ADS1282HIPW products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADS1282HIPW meets industry standards.
7.What is the process for return or replacement of ADS1282HIPW?
All ADS1282HIPW units undergo pre-shipment inspection (PSI). If there is an issue with ADS1282HIPW, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADS1282HIPW part is unused and in its original packaging.
Return procedure for ADS1282HIPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADS1282HIPW Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
