Product details

Resolution (Bits) 20 Number of input channels 1 Sample rate (Max) (kSPS) 0.08 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-Ended Rating Catalog Reference mode Ext Input range (Max) (V) 0.039 Input range (Min) (V) 0 Features 50/60 Hz Rejection, Oscillator, PGA Operating temperature range (C) -40 to 85 Power consumption (Typ) (mW) 2.9 Analog voltage AVDD (Min) (V) 2.7 Analog voltage AVDD (Max) (V) 5.3 Digital supply (Min) (V) 2.7 Digital supply (Max) (V) 5.3
Resolution (Bits) 20 Number of input channels 1 Sample rate (Max) (kSPS) 0.08 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-Ended Rating Catalog Reference mode Ext Input range (Max) (V) 0.039 Input range (Min) (V) 0 Features 50/60 Hz Rejection, Oscillator, PGA Operating temperature range (C) -40 to 85 Power consumption (Typ) (mW) 2.9 Analog voltage AVDD (Min) (V) 2.7 Analog voltage AVDD (Max) (V) 5.3 Digital supply (Min) (V) 2.7 Digital supply (Max) (V) 5.3
TSSOP (PW) 16 22 mm² 4.4 x 5
  • Complete Front-End for Bridge Sensor
  • Onboard PGA with Gain of 64 or 128
  • Onboard Oscillator
  • RMS Noise:
    40nV at 10SPS (G = 128)
    88nV at 80SPS (G = 128)
  • 18-Bit Noise-Free Resolution
  • Selectable 10SPS or 80SPS Data Rates
  • Simultaneous 50Hz and 60Hz Rejection at 10SPS
  • External Voltage Reference up to 5V for Ratiometric Measurements
  • Simple, Pin-Driven Control
  • Two-Wire Serial Digital Interface
  • Tiny 16-pin TSSOP Package
  • Supply Range: 2.7V to 5.3V
  • -40°C to +85°C Temperature Range
  • APPLICATIONS
    • Weigh Scales
    • Strain Gauges
    • Pressure Sensors
    • Industrial Process Control

All trademarks are the property of their respective owners.

  • Complete Front-End for Bridge Sensor
  • Onboard PGA with Gain of 64 or 128
  • Onboard Oscillator
  • RMS Noise:
    40nV at 10SPS (G = 128)
    88nV at 80SPS (G = 128)
  • 18-Bit Noise-Free Resolution
  • Selectable 10SPS or 80SPS Data Rates
  • Simultaneous 50Hz and 60Hz Rejection at 10SPS
  • External Voltage Reference up to 5V for Ratiometric Measurements
  • Simple, Pin-Driven Control
  • Two-Wire Serial Digital Interface
  • Tiny 16-pin TSSOP Package
  • Supply Range: 2.7V to 5.3V
  • -40°C to +85°C Temperature Range
  • APPLICATIONS
    • Weigh Scales
    • Strain Gauges
    • Pressure Sensors
    • Industrial Process Control

All trademarks are the property of their respective owners.

The ADS1230 is a precision 20-bit analog-to-digital converter (ADC). With an onboard low-noise programmable gain amplifier (PGA), onboard oscillator, and precision 20-bit delta-sigma ADC, the ADS1230 provides a complete front-end solution for bridge sensor applications including weigh scales, strain gauges, and pressure sensors.

The low-noise PGA has a gain of 64 or 128, supporting a full-scale differential input of ±39mV or ±19.5mV, respectively. The delta-sigma ADC has 20-bit effective resolution and is comprised of a 3rd-order modulator and 4th-order digital filter. Two data rates are supported: 10SPS (with both 50Hz and 60Hz rejection) and 80SPS. The ADS1230 can be clocked by the internal oscillator or an external clock source. Offset calibration is performed on-demand, and the ADS1230 can be put in a low-power standby mode or shut off completely in power-down mode.

All of the features of the ADS1230 are controlled by dedicated pins; there are no digital registers to program. Data are output over an easily-isolated serial interface that connects directly to the MSP430 and other microcontrollers.

The ADS1230 is available in a TSSOP-16 package and is specified from -40°C to +85°C.

The ADS1230 is a precision 20-bit analog-to-digital converter (ADC). With an onboard low-noise programmable gain amplifier (PGA), onboard oscillator, and precision 20-bit delta-sigma ADC, the ADS1230 provides a complete front-end solution for bridge sensor applications including weigh scales, strain gauges, and pressure sensors.

The low-noise PGA has a gain of 64 or 128, supporting a full-scale differential input of ±39mV or ±19.5mV, respectively. The delta-sigma ADC has 20-bit effective resolution and is comprised of a 3rd-order modulator and 4th-order digital filter. Two data rates are supported: 10SPS (with both 50Hz and 60Hz rejection) and 80SPS. The ADS1230 can be clocked by the internal oscillator or an external clock source. Offset calibration is performed on-demand, and the ADS1230 can be put in a low-power standby mode or shut off completely in power-down mode.

All of the features of the ADS1230 are controlled by dedicated pins; there are no digital registers to program. Data are output over an easily-isolated serial interface that connects directly to the MSP430 and other microcontrollers.

The ADS1230 is available in a TSSOP-16 package and is specified from -40°C to +85°C.

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Technical documentation

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Type Title Date
* Data sheet 20-Bit Analog-to-Digital Converter for Bridge Sensors datasheet (Rev. B) 05 Sep 2012
Application note Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs PDF | HTML 23 Mar 2022
Application note A Basic Guide to Bridge Measurements PDF | HTML 18 Feb 2022
E-book Fundamentals of Precision ADC Noise Analysis 19 Jun 2020
Application note Digital Filter Types in Delta-Sigma ADCs PDF | HTML 27 Jun 2017
E-book Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 19 Mar 2015
Application note Delta-Sigma ADC Design for Bridge Sensor Applications 30 Sep 2011

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Simulation model

ADS1230 IBIS Model

SBAM036.ZIP (32 KB) - IBIS Model
Calculation tool

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PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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