ADS1131IDR
Active18-BIT, 80SPS, 1-CH DELTA-SIGMA ADC W/ POWERDOWN SWITCH FOR RESISTIVE BRIDGE SENSORS & WEIGH SCALES
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ADS1131IDR
Active18-BIT, 80SPS, 1-CH DELTA-SIGMA ADC W/ POWERDOWN SWITCH FOR RESISTIVE BRIDGE SENSORS & WEIGH SCALES
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Technical Specifications
Parameters and characteristics for this part
| Specification | ADS1131IDR |
|---|---|
| Architecture | Sigma-Delta |
| Configuration | ADC |
| Data Interface | SPI |
| Input Type | Differential |
| Mounting Type | Surface Mount |
| Number of A/D Converters | 1 |
| Number of Inputs | 1 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 16-SOIC |
| Package / Case [x] | 0.154 in |
| Package / Case [y] | 3.9 mm |
| Reference Type | External |
| Sampling Rate (Per Second) | 80 Per Second |
| Supplier Device Package | 16-SOIC |
| Voltage - Supply, Analog [Max] | 5.3 V |
| Voltage - Supply, Analog [Min] | 3 V |
| Voltage - Supply, Digital [Max] | 5.3 V |
| Voltage - Supply, Digital [Min] | 3 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 5.44 | |
| Digi-Reel® | 1 | $ 5.44 | ||
| Tape & Reel (TR) | 2500 | $ 2.73 | ||
| Texas Instruments | LARGE T&R | 1 | $ 3.74 | |
| 100 | $ 3.05 | |||
| 250 | $ 2.40 | |||
| 1000 | $ 2.03 | |||
Description
General part information
ADS1131 Series
The ADS1131 is a precision, 18-bit analog-to-digital converter (ADC). With an onboard, low-noise amplifier, onboard oscillator, precision 18-bit delta-sigma (ΔΣ) ADC, and bridge power switch, the ADS1131 provides a complete front-end solution for bridge sensor applications including weigh scales, strain gauges, and load cells.
The low-noise amplifier has a gain of 64, supporting a full-scale differential input of ±39mV. The ΔΣ 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 ADS1131 can be put into a low-power standby mode or shut off completely in power-down mode.
The ADS1131 is 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.
Documents
Technical documentation and resources