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ADS1230

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ADC Delta-Sigma de 20 bits, 80 SPS y 1 canal para sensores de puente resistivos y básculas de peso

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ADS1230

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Detalles del producto

Resolution (Bits) 20 Sample rate (max) (ksps) 0.08 Number of input channels 1 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Rating Catalog Reference mode External Input voltage range (max) (V) 0.039 Input voltage 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 supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.3 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.3
Resolution (Bits) 20 Sample rate (max) (ksps) 0.08 Number of input channels 1 Interface type SPI Architecture Delta-Sigma Input type Differential, Single-ended Rating Catalog Reference mode External Input voltage range (max) (V) 0.039 Input voltage 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 supply voltage (min) (V) 2.7 Analog supply voltage (max) (V) 5.3 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.3
TSSOP (PW) 16 32 mm² (5 mm × 6.4 mm)
  • 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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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos 20-Bit Analog-to-Digital Converter for Bridge Sensors datasheet (Rev. B) 5/09/2012
Nota sobre la aplicación Calculating Conversion Latency and System Cycle Time for Delta-Sigma ADCs (Rev. A) PDF | HTML 18/03/2024
Nota sobre la aplicación A Basic Guide to Bridge Measurements (Rev. A) PDF | HTML 13/03/2024
Nota sobre la aplicación Digital Filter Types in Delta-Sigma ADCs (Rev. A) PDF | HTML 29/03/2023
Libro electrónico Fundamentals of Precision ADC Noise Analysis (Rev. A) 19/06/2020
Libro electrónico Best of Baker's Best: Precision Data Converters -- Delta-Sigma ADCs 19/03/2015
Nota sobre la aplicación Delta-Sigma ADC Design for Bridge Sensor Applications 30/09/2011

Diseño y desarrollo

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Modelo de simulación

ADS1230 IBIS Model

SBAM036.ZIP (32 KB) - Modelo IBIS
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