AD670JNZ

AD670JNZ is a complete 8-bit signal conditioning analogue-to-digital converter. It consists of an instrumentation amplifier front end along with a DAC, comparator, successive approximation register (SAR), precision voltage reference, and a three-state output buffer on a single monolithic chip. No external components or user trims are required to interface, with full accuracy, an analogue system to an 8-bit data bus. The AD670 will operate on the +5V system supply. The input stage provides differential inputs with excellent common-mode rejection and allows direct interface to a variety of transducers. The AD670 can be configured for both unipolar and bipolar inputs over these ranges. The differential inputs and common-mode rejection of this front end are useful in applications such as the conversion of transducer signals superimposed on common-mode voltages. The AD670 incorporates advanced circuit design and proven processing technology.

• Complete 8-bit signal conditioning A/D converter
• Microprocessor bus interface, flexible input stage: instrumentation amp front end
• Provides differential inputs and high common-mode rejection
• No user trims required, no missing codes over temperature
• Operating voltage range from 4.5V to 5.5V, convenient input ranges
• Low cost monolithic construction, conversion time is 10µs maximum at (VCC = +5V and +25°C)
• Current ICC is 30mA typ at (VCC = +5V), gain accuracy is ±1.5LSB typ at (VCC = +5V)
• Bias current is 200nA typical at (VCC = +5V and +25°C)
• Output capacitance is 5pF typical at (VCC = +5V and +25°C)
• Operating temperature range from 0°C to +70°C, plastic DIP (N-20) package

Uwagi

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