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.
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| Resolution (Bits) | 18 |
| 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) | 0.041 |
| 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 (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 x 6.4 |
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