Texas Instruments ADS1218Y/250

ADC Single Delta-Sigma 780sps 24-bit Serial 48-Pin TQFP T/R

8-CH 24-BIT DELTA-SIGMA ADC SERIAL ACCESS PQFP48

2.7V~3.3V,5V 780sps 24bit 8 24 SPI Differential 2.7V~5.25V Sigma-Delta QFP , 7mm*7mm*1mm

24Bit 780Hz SPI TQFP-48(7x7) Analog to Digital Converters (ADC) ROHS

Converters - Analog to Digital (ADC) 24-Bit, 780 SPS ADC

A/D CONV, 24-BIT DELTA SIGMA W/FLASH<AZ

24BIT-BIT, 780 SPS ADC; Resolution (Bits):24bit; Sampling Rate:780SPS; Data Interface:Serial, SPI; Supply Current:900µA; IC Case Style:TQFP; No. of Pins:48; Operating Temperature Range:-40°C to +85°C; SVHC:No SVHC (18-Jun-2010); Package / Case:TQFP; Base Number:1218; Input Type:Differential; No. of Channels:8; Sample Rate:780SPS; Supply Voltage Max:5.25V; Supply Voltage Min:2.7V; Termination Type:SMD

The ADS1218 is a precision, wide dynamic range, delta-sigma, Analog-to-Digital (A/D) converter with 24-bit resolution and Flash memory operating from 2.7V to 5.25V supplies. The delta-sigma, A/D converter provides up to 24 bits of no missing code performance and effective resolution of 22 bits. The eight input channels are multiplexed. Internal buffering can be selected to provide a very high input impedance for direct connection to transducers or low-level voltage signals. Burnout current sources are provided that allow for the detection of an open or shorted sensor. An 8-bit Digital-to-Analog (D/A) converter provides an offset correction with a range of 50% of the FSR (Full-Scale Range). The PGA (Programmable Gain Amplifier) provides selectable gains of 1 to 128 with an effective resolution of 19 bits at a gain of 128. The A/D conversion is accomplished with a second-order delta-sigma modulator and programmable sinc filter. The reference input is differential and can be used for ratiometric conversion. The on-board current DACs (Digital-to-Analog Converters) operate independently with the maximum current set by an external resistor. The serial interface is SPI-compatible. Eight bits of digital I/O are also provided that can be used for input or output. The ADS1218 is designed for high-resolution measurement applications in smart transmitters, industrial process control, weight scales, chromatography, and portable instrumentation.