AD558 Datasheet | Analog Devices

a Features plete 8-Bit DAC Voltage Output- 2 Calibrated Ranges Internal Precision Bandgap Reference Single-Supply Operation: +5 V to +15 V Full Microprocessor Interface Fast: 1 ␮s Voltage Settling to ؎ 1/2 LSB Low Power: 75 m W No User Trims Guaranteed Monotonic Over Temperature All Errors Specified TMIN to TMAX Small 16-Pin DIP and 20-Pin PLCC Packages Single Laser-Wafer-Trimmed Chip for Hybrids Low Cost MIL-STD-883 pliant Versions Available DACPORT Low Cost, plete µP-patible 8-Bit DAC AD558- FUNCTIONAL BLOCK DIAGRAM CONTROL INPUTS GND CS CE LSB DIGITAL INPUT DATA (BUS) DB0 DB1 DB2 DB4 DB5 DB6 DB3 DB7 +VCC I2L CONTROL LOGIC LSB I2L LATCHES MSB 8-BIT VOLTAGE-SWITCHING D-TO-A CONVERTER OUTPUT AMP VOUT VOUTSENSE A BAND GAP REFERENCE VOUTSELECT GND CONTROL AMP PRODUCT DESCRIPTION PRODUCT HIGHLIGHTS The AD558 DACPORT® is a plete voltage-output 8-bit digital-to-analog converter, including output amplifier, full microprocessor interface and precision voltage reference on a single monolithic chip. No external ponents or trims are required to interface, with full accuracy, an 8-bit data bus to an analog system. The performance and versatility of the DACPORT is a result of several recently-developed monolithic bipolar technologies. The plete microprocessor interface and control logic is implemented with integrated injection logic (I2L), an extremely dense and low power logic structure that is process-patible with linear bipolar fabrication. The internal precision voltage reference is the patented low voltage bandgap circuit which permits fullaccuracy performance on a single +5 V to +15 V power supply. Thin-film silicon-chromium resistors provide the stability required for guaranteed monotonic operation over the entire operating temperature range (all grades), while recent advances in laser-wafer-trimming of these thin-film resistors permit absolute calibration at the factory to within ± 1 LSB; thus no user-trims for gain or offset...