代理ADS1230IPWR 适用于阻性桥式传感器和称重芯片

FEATURES DESCRIPTION

The ADS1230 is a precision 20-bit analog-to-digital

2• Complete Front-End for Bridge Sensor

converter (ADC). With an onboard low-noise

• Onboard PGA with Gain of 64 or 128 programmable gain amplifier (PGA), onboard

• Onboard Oscillator oscillator, and precision 20-bit delta-sigma ADC, the

ADS1230 provides a complete front-end solution for • RMS Noise:

bridge sensor applications including weigh scales, 40nV at 10SPS (G = 128)

strain gauges, and pressure sensors. 88nV at 80SPS (G = 128)

• 18-Bit Noise-Free Resolution The low-noise PGA has a gain of 64 or 128,

supporting a full-scale differential input of ±39mV or • Selectable 10SPS or 80SPS Data Rates

±19.5mV, respectively. The delta-sigma ADC has 20-

• Simultaneous 50Hz and 60Hz Rejection at bit effective resolution and is comprised of a 3rd10SPS

order modulator and 4th-order digital filter. Two data

• External Voltage Reference up to 5V for rates are supported: 10SPS (with both 50Hz and

Ratiometric Measurements 60Hz rejection) and 80SPS. The ADS1230 can be

clocked by the internal oscillator or an external clock

• Simple, Pin-Driven Control source. Offset calibration is performed on-demand,

• Two-Wire Serial Digital Interface and the ADS1230 can be put in a low-power standby

mode or shut off completely in power-down mode. • Tiny 16-pin TSSOP Package

• Supply Range: 2.7V to 5.3V All of the features of the ADS1230 are controlled by

• –40°C to +85°C Temperature Range dedicated pins; there are no digital registers to

program. Data are output over an easily-isolated

serial interface that connects directly to the MSP430 APPLICATIONS and other microcontrollers.

• Weigh Scales

The ADS1230 is available in a TSSOP-16 package

• Strain Gauges and is specified from –40°C to +85°C.

• Pressure Sensors

• Industrial Process Control