ADS8504

BurrĆBrown Products from Texas Instruments ADS8504 SLAS434A – JUNE 2005 – REVISED JUNE 2007 12-BIT 250-KSPS SAMPLING CMOS ANALOG-TO-DIGITAL CONVERTER FEATURES 250-kHz Sampling Rate Standard ±10-V Input Range 73-dB SINAD With 45-kHz Input ±0.45 LSB Max INL ±0.45 LSB Max DNL 12 Bit No Missing Code ±1 LSB Bipolar Zero Errors ±0.4 PPM/°C Bipolar Zero Error Drift Single 5-V Supply Operation Pin-Compatible With ADS7804/05 (Low Speed) and 16-Bit ADS8505 Uses Internal or External Reference Full Parallel Data Output 70-mW Typ Power Dissipation at 250 KSPS 28-Pin SOIC Package APPLICATIONS Industrial Process Control Data Acquisition Systems Digital Signal Processing Medical Equipment Instrumentation DESCRIPTION The ADS8504 is a complete 12-bit sampling A/D converter using state-of-the-art CMOS structures. It contains a complete 12-bit, capacitor-based, SAR A/D with S/H, reference, clock, interface for microprocessor use, and 3-state output drivers. The ADS8504 is specified at a 250-kHz sampling rate over the full temperature range. Precision resistors provide an industry standard ±10-V input range, while the innovative design allows operation from a single +5-V supply, with power dissipation under 100 mW. The ADS8504 is available in a 28-pin SOIC package and is fully specified for operation over the industrial -40°C to 85°C temperature range. Clock Successive Approximation Register and Control Logic R/C CS BYTE BUSY 9.8 kΩ ± 10 V Input 5 kΩ ...