1FEATURES
2• 18-Bit Noise-Free Resolution
• Complete Front-End for Bridge Sensor
• Onboard Gain of 64
• Onboard Oscillator
• 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 TSSOP-16 Package
• Supply Range: 2.7V to 5.3V

APPLICATIONS
• Weigh Scales
• Strain Gauges

DESCRIPTION
The ADS1130 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.