ADS1130

用于桥传感器的 18 位模数转换器

The is a precision, 18-bit analog-to-digital converter ADC. With an onboard low-noise gain amplifier, onboard oscillator, and precision 18-bit delta-sigma ADC, the ADS1130 provides a complete front-end solution for bridge sensor applications including weigh scales and strain gauges.

The low-noise amplifier has a gain of 64, supporting a full-scale differential input of ±39mV. The delta-sigma ADC has 18-bit effective resolution and is comprised of a third-order modulator and fourth-order digital filter. Two data rates are supported: 10SPS with both 50Hz and 60Hz rejection and 80SPS. The ADS1130 can be put into a low-power standby mode or shut off completely in power-down mode.

All of the features of the ADS1130 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 ADS1130 is available in a TSSOP-16 package and is specified for operation from -40°C to +85°C.

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18-Bit Noise-Free Resolution

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Complete Front-End for Bridge Sensor

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Onboard Gain of 64

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Onboard Oscillator

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Selectable 10SPS or 80SPS Data Rates

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Simultaneous 50Hz and 60Hz Rejection at 10SPS

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External Voltage Reference up to 5V for Ratiometric Measurements

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Simple, Pin-Driven Control

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Two-Wire Serial Digital Interface

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Tiny TSSOP-16 Package

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Supply Range: 2.7V to 5.3V

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APPLICA ONS

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Weigh Scales

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Strain Gauges

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