ZN448 - ETC

ZN448 8-BIT MICROPROCESSOR COMPATIBLE A-D CONVERTER

DS3013 - 2.2 ZN448/ZN449 8-BIT MICROPROCESSOR COMPATIBLE A-D CONVERTER The ZN448 and ZN449 are 8-bit successive approximation A-D converters designed to be easily interfaced to microprocessors. All active circuitry is contained on-chip including a clock generator and stable 2.5V bandgap reference, control logic and double buffered latches with reference. On.

Features

s s s s s s s Easy Interfacing to Microprocessor, or operates as a 'Stand-Alone' Converter Fast: 9 microseconds Conversion time Guaranteed Choice of Linearity: 0.5 LSB - ZN448, 1 LSB - ZN449 On-Chip Clock Choice of On-Chip or External Reference Voltage Unipolar or Bipolar Input Ranges Commercial Temperature Range VREF OUT GROUND ZN448/9E (DP18) BUSY (END OF CONVERSION) RD (OUTPUT ENABLE) CLOCK WR (START CONVERSION) REXT 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 DB0 (LSB) DB1 DB2 DB3 DB4 DB5 DB6 DB7 (MSB) +VCC (+5V) ORDERING INFORMATION Device type ZN448E ZN449D ZN449E Linearity error.