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Texas Instruments ADS1130IPW
- Part No.:
- ADS1130IPW
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ADS1130IPW.pdf
- Description:
- IC ADC 18BIT SIGMA-DELTA 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,922
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Product details
Overview
ADS1130IPW from Texas Instruments is a precision 18-bit delta-sigma analog-to-digital converter with integrated 64× low-noise gain amplifier, internal oscillator, and sinc⁴ digital filter - designed specifically for bridge sensor front-ends in weigh scales and strain gauge systems. It delivers 18-bit noise-free resolution, ±39mV full-scale differential input range, simultaneous 50Hz/60Hz rejection at 10SPS, and operates from 2.7V to 5.3V supplies.
For engineers reviewing the ADS1130IPW datasheet, ADS1130IPW pinout, ADS1130IPW application, or ADS1130IPW equivalent, this page provides verified technical context, real-world design meaning of key specs, TSSOP-16 package mapping, confirmed alternative options, and supply-ready procurement support - all grounded in TI's SBAS458A datasheet and official ordering documentation.
Technical Context
The ADS1130IPW implements a third-order delta-sigma modulator with fourth-order sinc⁴ digital filtering, achieving 18-bit effective resolution and 300nVPP input-referred noise at 10SPS. Its chopper-stabilized amplifier architecture includes matched resistors (R1, RF1, RF2) delivering fixed 64× gain and <±10nV/°C offset drift.
Control is fully pin-driven: SPEED selects between 10SPS (with dual-line-frequency rejection) and 80SPS; PDWN forces full power-down reset; SCLK initiates standby mode when held high; DRDY/DOUT serves as both data-ready flag and MSB-first serial output - no registers or firmware configuration required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 18-bit noise-free; guarantees no missing codes across full operating range - critical for high-accuracy weight measurement linearity. |
| Data Rate | 10SPS or 80SPS via SPEED pin; 10SPS enables simultaneous 50Hz/60Hz rejection without external notch filters. |
| Analog Input Range | ±39mV differential (±0.5VREF/64); matches typical full-bridge output swing without external scaling. |
| Input-Referred Noise | 300nVPP at 10SPS; enables sub-10μg resolution in precision weigh scale designs with 1kg load cell. |
| Power Supply Range | 2.7V to 5.3V for both AVDD and DVDD; supports single-supply operation from 3.3V or 5V rails. |
| Integral Nonlinearity | ±20ppm of FSR; ensures <0.002% linearity error over temperature - essential for legal-for-trade metrology compliance. |
| Common-Mode Rejection | 100dB at DC; suppresses cable-induced common-mode interference in long-sensor-wire industrial installations. |
Pinout & Package
TSSOP-16 (PW package), 5.0mm × 4.4mm body, 0.65mm pitch, 1.2mm max height, RoHS-compliant NIPDAU finish, MSL Level-2-260°C-1 year.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DVDD (1) | Digital power supply | 2.7–5.3V rail powering logic and serial interface; decoupling required near pin 1. |
| DGND (2–4) | Digital ground | Three dedicated pins minimize ground bounce during SCLK transitions and DRDY toggling. |
| CAP (5,6) | Gain amplifier bypass | Connect 0.1μF capacitor between pins to stabilize 64× gain stage; critical for noise performance. |
| AINP / AINN (7,8) | Differential analog input | Accepts ±39mV bridge output; EMI-filtered inputs tolerate noisy industrial environments. |
| REFP / REFN (9,10) | Voltage reference inputs | Set VREF = REFP – REFN; supports up to 5V ratiometric reference for improved bridge excitation stability. |
| AGND (11) | Analog ground | Isolated return path for analog circuitry; must be separated from DGND and tied at single point. |
| AVDD (12) | Analog power supply | 2.7–5.3V rail powering amplifier and modulator; separate from DVDD to reduce digital noise coupling. |
| SPEED (13) | Data rate select | Logic-low = 10SPS (dual 50/60Hz rejection); logic-high = 80SPS (higher throughput). |
| PDWN (14) | Power-down control | Pull low to shut down entire ADC and reset internal state; wake-up time <8μs. |
| SCLK (15) | Serial clock input | Rising edge clocks out 18-bit data; holding high >99ms enters ultra-low-power standby mode. |
| DRDY/DOUT (16) | Combined status/data | Goes low when conversion complete; then outputs MSB-first data on first SCLK rising edge. |
Key Features
| Feature | Design Value |
|---|---|
| Onboard 64× gain amplifier | Eliminates need for external instrumentation amplifier; reduces BOM count and layout area in weigh scale PCBs. |
| Pin-driven control (no registers) | Removes firmware dependency - simplifies integration with MSP430, PIC, or bare-metal microcontrollers. |
| Simultaneous 50Hz/60Hz rejection | Enables global deployment of same hardware in 50Hz (EU/Asia) and 60Hz (US) regions without recalibration. |
| Two-wire serial interface | Uses only SCLK and DRDY/DOUT - minimizes isolation component count in safety-critical medical or industrial systems. |
| Ultra-low standby current | 0.1–1μA analog supply current in standby; extends battery life in portable weighing terminals. |
Applications
| Weigh Scale Systems | Strain Gauge Monitoring |
|---|---|
Use Scenario: High-precision benchtop and platform scales used in pharmaceutical labs and logistics hubs requiring legal-for-trade certification. IC Role / Device Role / Timing Role: Primary ADC front-end digitizing mV-level Wheatstone bridge output from load cells; handles all signal conditioning internally. Use Value: 18-bit noise-free resolution and ±20ppm INL enable ≤0.002% total error - meeting OIML R76 Class III requirements without calibration compensation. |
Use Scenario: Structural health monitoring of bridges and buildings using bonded foil strain gauges exposed to temperature cycling and vibration. IC Role / Device Role / Timing Role: Low-drift bridge sensor interface with 100dB CMRR and <±10nV/°C offset drift - rejecting thermal EMF and common-mode noise. Use Value: Internal 64× gain and chopper stabilization maintain accuracy across –40°C to +85°C without external zero-shift compensation circuits. |
| Industrial Pressure Transducers | Portable Force Measurement Tools |
Use Scenario: OEM pressure sensors for HVAC and process control where bridge output varies with diaphragm deflection under fluid pressure. IC Role / Device Role / Timing Role: Ratiometric ADC using external bridge excitation voltage as reference (REFP/REFN); rejects supply ripple and thermal drift. Use Value: Support for up to 5V reference allows direct use of stable 5V bridge excitation - eliminating separate reference IC and reducing system cost by 15%. |
Use Scenario: Handheld torque wrenches and material testers requiring battery-powered, high-resolution force readout with fast response. IC Role / Device Role / Timing Role: Dual-mode ADC: 10SPS for stable static readings, 80SPS for dynamic capture during fast tightening cycles. Use Value: Pin-selectable data rates eliminate need for firmware reconfiguration - enabling one hardware design for both precision and speed variants. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bridge-sensor ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS1230IPW | 20-bit resolution, 10/80SPS, same TSSOP-16 pinout but requires external reference; higher noise floor (400nVPP at 10SPS). | Used where higher resolution justifies added external reference complexity and cost. | Select ADS1230IPW only if 20-bit ENOB is mandatory and board space allows external REF3025. |
| AD7792BRUZ | 16-bit sigma-delta ADC, 4.17–470SPS, SPI interface, internal 1.17V reference; no onboard gain amplifier. | Preferred in multi-channel systems needing programmable gain and flexible data rates via SPI register access. | Choose AD7792BRUZ when system requires software-configurable PGA or multiple ADC channels sharing SPI bus. |
Compared with ADS1230IPW and AD7792BRUZ, the ADS1130IPW uniquely combines fixed 64× gain, pin-driven simplicity, and simultaneous 50/60Hz rejection in a minimal 16-pin footprint - making it optimal for cost-sensitive, single-channel, high-accuracy bridge sensor applications where firmware overhead must be minimized.
Availability
ADS1130IPW is available at Aetrix Electronics and suitable for weigh scale manufacturing, industrial strain gauge instrumentation, and portable force measurement tools requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for ADS1130IPW 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 sensor interface solutions.
The ADS1130IPW belongs to TI's precision delta-sigma ADC product line, engineered specifically for low-noise, low-power bridge sensor signal chains in metrology, industrial sensing, and portable test equipment.
FAQ
What is the maximum external reference voltage supported by the ADS1130IPW?
The ADS1130IPW accepts an external reference voltage (VREF = REFP – REFN) up to AVDD + 0.1V, with REFP ranging from REFN + 1.5V to AVDD + 0.1V and REFN from AGND – 0.1V to REFP – 1.5V. At AVDD = 5V, this permits up to 5.1V reference - enabling true ratiometric operation with standard 5V bridge excitation. This capability is explicitly specified in the Electrical Characteristics table of the ADS1130IPW datasheet.
Does the ADS1130IPW require external components for basic operation?
Yes - the ADS1130IPW requires a 0.1μF ceramic capacitor connected between CAP pins (5 and 6) to stabilize its internal 64× gain amplifier. No external oscillator, reference, or digital registers are needed. All timing and control are handled internally or via dedicated pins (SPEED, PDWN, SCLK), making the ADS1130IPW functional with only that single capacitor and proper power/ground decoupling.
How does the ADS1130IPW achieve simultaneous 50Hz and 60Hz line-frequency rejection?
The ADS1130IPW achieves simultaneous 50Hz and 60Hz rejection through its sinc⁴ digital filter combined with a 10SPS data rate (selected by pulling SPEED low). The filter's frequency response features deep notches at integer multiples of the data rate - placing nulls at exactly 10Hz, 20Hz, 30Hz, etc., which inherently suppress both 50Hz and 60Hz interference without additional hardware. This behavior is confirmed in Figure 4 of the ADS1130IPW datasheet.
What is the power consumption of the ADS1130IPW in normal operation at 3V supplies?
At AVDD = DVDD = 3V and 10SPS operation, the ADS1130IPW draws 900–1500μA from the analog supply and 60–100μA from the digital supply, totaling approximately 2.9mW. In standby mode (SCLK held high), analog supply current drops to 0.1–1μA. These values are measured and published in the Electrical Characteristics section of the ADS1130IPW datasheet under "Power Supply" parameters.
Can the ADS1130IPW interface directly with an MSP430 microcontroller?
Yes - the ADS1130IPW's two-wire serial interface (SCLK and DRDY/DOUT) connects directly to MSP430 GPIO pins without level-shifting or protocol translation. TI's datasheet explicitly states compatibility with MSP430, and the pin-driven control eliminates register programming complexity. DRDY/DOUT's open-drain-like behavior (pull-down active, high-Z otherwise) aligns with MSP430's input thresholds when DVDD = 3.3V, ensuring robust communication in ADS1130IPW-based designs.
ADS1130IPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Number of Bits:
- 18
- Sampling Rate (Per Second):
- 80
- Number of Inputs:
- 1
- 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:
- 2.7V ~ 5.3V
- Voltage - Supply, Digital:
- 2.7V ~ 5.3V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 16-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS1130IPW FAQ
1.How can I place an order for ADS1130IPW through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS1130IPW 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 ADS1130IPW reliable?
The price and inventory of ADS1130IPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS1130IPW is usually 5 days.
3.What payment methods are accepted for ADS1130IPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS1130IPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS1130IPW?
ADS1130IPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS1130IPW 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 ADS1130IPW?
For technical support, including ADS1130IPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS1130IPW requirements.
6.How does Aetrix verify that ADS1130IPW is sourced from the original manufacturer or authorized distributors?
All ADS1130IPW 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 ADS1130IPW meets industry standards.
7.What is the process for return or replacement of ADS1130IPW?
All ADS1130IPW units undergo pre-shipment inspection (PSI). If there is an issue with ADS1130IPW, 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 ADS1130IPW part is unused and in its original packaging.
Return procedure for ADS1130IPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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