The ADS1232 is precision 24-bit analog-to-digital converters (ADCs). With an onboard, low-noise programmable gain amplifier (PGA), precision delta-sigma ADC and internal oscillator, the ADS1232 provide a complete front-end solution for bridge sensor applications including weigh scales, strain gauges and pressure sensors
The ADS1232 also includes an onboard temperature sensor to monitor ambient temperature. The onboard, low-noise PGA has a selectable gain of 1, 2, 64, or 128 supporting a full-scale differential input of ±2.5V, ±1.25V, ±39mV, or ±19.5mV. The delta-sigma ADC has 23.5-bit effective resolution and is comprised of a 3rd-order modulator and 4th-order digital filter. Two data rates are supported: 10SPS (with both 50Hz and 60Hz rejection) and 80SPS.
The ADS1232 can be clocked externally using an oscillator or a crystal. There is also an internal oscillator available that requires no external components. Offset calibration is performed on-demand and the ADS1232 can be put in a low-power standby mode or shut off completely in power-down mode.
All of the features of the ADS1232 are operated through simple pin-driven control. There are no digital registers to program in order to simplify software development. Data are output over an easily-isolated serial interface that connects directly to the MSP430 and other microcontrollers.
Features
Complete Front-End for Bridge Sensors
Up to 23.5 Effective Bits
Onboard, Low-Noise PGA
RMS Noise:
17nV at 10SPS (PGA = 128)
44nV at 80SPS (PGA = 128)
19.2-Bit Noise-Free Resolution at Gain = 64
Over 100dB Simultaneous 50Hz and 60Hz Rejection
Flexible Clocking:
Low-Drift Onboard Oscillator (±3%) Optional External Crystal
Selectable Gains of 1, 2, 64, and 128
Easy Ratiometric Measurements—External Voltage Reference up to 5V
Selectable 10SPS or 80SPS Data Rates
Two-Channel Differential Input with Built-In Temperature Sensor (ADS1232)
Four-Channel Differential Input (ADS1234)
Simple Serial Digital Interface
Supply Range: 2.7V to 5.3V
-40°C to +105°C Temperature Range
APPLICATIONS
Weigh Scales
Strain Gauges
Pressure Sensors
Industrial Process Control
Package Included:
1Pcs NOYITO ADS1232 24-Bit A/D Analog to digital Converter Module
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