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DAC667JP Arkusz danych(PDF) 1 Page - Burr-Brown (TI) |
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DAC667JP Arkusz danych(HTML) 1 Page - Burr-Brown (TI) |
1 / 9 page 1 ® DAC667 DAC667 ® Microprocessor-Compatible 12-BIT DIGITAL-TO-ANALOG CONVERTER DESCRIPTION The DAC667 is a complete monolithic integrated cir- cuit microprocessor-compatible 12-bit digital-to-ana- log converter. It includes a precision voltage reference, microcomputer interface logic, double-buffered latch, and a 12-bit D/A converter with a voltage output amplifier. Fast current switches and a laser-trimmed thin-film resistor network provide a highly accurate and fast D/A converter. A double-buffered latch facilitates microcomputer inter- facing to 4-, 8-, 12-, or 16-bit data buses. The input buffer latch holds the 12-bit data until it is transferred to an internal 12-bit D/A converter latch, giving precise timing control over an analog output change. The DAC667 is specified to ±1/2LSB maximum lin- earity error at +25 °C. The DAC667 is guaranteed monotonic over the specification temperature range. The DAC667 is available in 28-pin, 0.6" wide plastic DIP package. FEATURES q ±3/4LSB MAX NONLINEARITY OVER TEMPERATURE q MONOTONICITY GUARANTEED OVER TEMPERATURE q MICROCOMPUTER INTERFACE: Double-Buffered Latch q VOLTAGE OUTPUT: ±10V, ±5V, +10V With ±12V to ±15V Supplies q LOW POWER DISSIPATION: 345mW typ q PIN COMPATIBLE WITH AD667 AGND Ω Ref Out Ref In A3 A0 A1 A2 CS DB11 MSB DB0 LSB 20V Span 9.95k Ω 5k Ω 5k 10V Span Reference OUT V Ω 19.95k 28 27 26 25 24 23 22 21 20 19 18 17 Power Gnd +V CC –V EE 12-Bit D/A Converter 12-Bit Parallel Latch 4 Bits 4 Bits 4 Bits 6 7 12 15 14 13 11 816 10 2 3 9 5 4 1 Summing Junction Bipolar Offset • • • • • • • • • • • • • • • • • • • 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 • Immediate Product Info: (800) 548-6132 DAC667 © 1990 Burr-Brown Corporation PDS-1091C Printed in U.S.A. March, 1998 |
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