Texas Instruments ADS1257 24-Bit Analog-to-Digital Converter (ADC)

Texas Instruments ADS1257 24-Bit Analog-to-Digital Converter (ADC) is a low-noise, 30kSPS, 24-bit, delta-sigma (ΔΣ) analog-to-digital converter (ADC). This ADC comes with an integrated multiplexer, input buffer, and programmable gain amplifier (PGA) in a small 20-pin, 5mm×5mm VQFN package. The combination of integration, high conversion rate, and 24-bit resolution together in a small package makes the device ideally suited for space-constrained applications. The input multiplexer accepts either two differential or three single-ended input measurements. The sensor break circuit verifies the input connection continuity to the ADC. The selectable input buffer greatly increases the input impedance, and in many cases, eliminates the need for external buffers.