AD574AKD

AD574A is a complete successive approximation analogue to digital converter. A high precision voltage reference and clock are included on chip and the circuit guarantees full rated performance without external circuitry or clock signals. The device design is implemented using Analog Devices, Bipolar/I²L process, and integrates all analogue and digital functions on one chip. Offset, linearity and scaling errors are minimized by active laser trimming of thin film resistor at the wafer stage. The voltage reference uses an implemented buried zener for low noise and low drift. On the digital side, I²L logic is used for successive approximation register, control circuitry and three state output buffers.

• No missing codes over temperature, 8bit and 16bit microprocessor bus interface
• Maximum conversion time is 35μs
• Operating voltage range is (Vlogic) is 4.5V to 5.5V
• Operating current range is (Vlogic) is 30mA typ
• Input impedance is 5Kohm at (10Volt span)
• Linearity error is ±1/2LSB at (+25°C, Tmin to Tmax)
• Resolution no missing codes is 12bits at (Tmin to Tmax)
• Maximum full scale T.C. is 27ppm/°C
• Operating temperature range is 0°C to +70°C
• Packaging style is ceramic DIP

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party