ZN426E8

THIS DOCUMENT IS FOR MAINTENANCE PURPOSES ONLY AND IS NOT RECOMMENDED FOR NEW DESIGNS MAY 1994 DS3021-2.2 ZN426E8 8-BIT D-A CONVERTER The ZN426 is a monolithic 8-bit D-A converter containing an R-2R ladder network of diffused resistors with precision bipolar switches, and a 2.5V precision voltage reference. FEATURES s ±1/2 LSB Linearity Error s Guaranteed Monolithic over the Full Operating Temperature Range s 0°C to +70°C s TTL and 5V CMOS Compatible s Single 5V Supply s Settling Time 1 microsecond Typical s Only Reference Capacitor and Resistor Required ABSOLUTE MAXIMUM RATINGS Supply voltage +7.0V Max.voltage, logic and VREF inputs+5.5V Operating temperature range0°C to +70°C Storage temperature range-55°C to +125°C BIT 3 BIT 2 (MSB) BIT 1 ANALOG OUTPUT V REF IN V REF OUT 0V 1 2 3 4 5 6 7 14 13 12 ZN426E8 11 10 9 8 V CC (+5V) BIT 4 BIT 5 BIT 6 BIT 7 BIT 8 (LSB) NC DP14 Fig.1 Pin connections (not to scale) - top view ORDERING INFORMATION Ambient operating temperature 0°C to +70°C Package, ZN426E8DP14 Fig.2 System diagram ZN426 ELECTRICAL CHARACTERISTICS (at Tamb = 25°C and VCC = +5V unless otherwise specified) Parameter Converter Resolution Non-linearity Differential non-linearity Settling time to 0.5LSB Settling time to 0.5LSB Offset voltage ZN426E8 and D VOS temperature coefficient Full-scale output Full-scale temp. coefficient Non-linearity temp. coefficient Analog output resistance External reference voltage Supply voltage Supply current High level input voltage ...