ADS7810

® ADS7810 ADS 781 0 12-Bit 800kHz Sampling CMOS ANALOG-to-DIGITAL CONVERTER FEATURES q 1.25µs THROUGHPUT TIME q STANDARD ±10V INPUT RANGE q 69dB min SINAD WITH 250kHz INPUT q ±3/4 LSB max INL AND ±1 LSB max DNL q INTERNAL REFERENCE q COMPLETE WITH S/H, REF, CLOCK, ETC. q PARALLEL DATA w/LATCHES q 28-PIN SOIC DESCRIPTION The ADS7810 is a complete 12-bit sampling A/D using state-of-the-art CMOS structures. It contains a complete 12-bit capacitor-based SAR A/D with inherent S/H, reference, clock, interface for microprocessor use, and three-state output drivers. The ADS7810 is specified at an 800kHz sampling rate, and guaranteed over the full temperature range. Laser-trimmed scaling resistors provide the industrystandard ±10V input range, while an innovative design allows operation from ±5V supplies. The 28-pin ADS7810 is available in a plastic SOIC fully specified for operation over the industrial –40°C to +85°C range. Clock Successive Approximation Register and Control Logic CDAC 2450Ω ±10V Input 625Ω Comparator Cap Output Latches and Three State Drivers BUSY Three State Parallel Data Bus 18kΩ Buffer 4.8kΩ 2.5V Ref Out/In 8.6kΩ Internal Ref International Airport Industrial Park Mailing Address: PO Box 11400, Tucson, AZ 85734 Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 Tel: (520) 746-1111 Twx: 910-952-1111 Internet: http://www.burr-brown.com/ FAXLine: (800) 548-6133 (US/Canada Only) Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immedi...