Rochester Electronics TL505CN

The TL505C is an analog-to-digital converter building block designed for use with TMS1000 type microprocessors. It contains the analog elements (operational amplifier, comparator, voltage reference, analog switches, and switch drivers) necessary for a unipolar automatic-zeroing dual-slope converter. The logic for the dual-slope conversion can be performed by the associated MPU as a software routine or can be implemented with other components, such as the TL502 logic-control device. The high-impedance Mos inputs permit the use of less expensive, lower value capacitors for the integration and offset capacitors and permit conversion speeds from 20 per second to 0.05 per second. The TL5o5C is a product of Tl's Bl-MOS process, which incorporates bipolar and MOSFET transistors on the same monolithic circuit. The TL5o5C is characterized for operation from 0°C to 70°C

• 3-Digit Accuracy
• 10-Bit Resolution
• Automatic Zero
• Internal Reference Voltage
• Single-Supply Operation
• High-Impedance Mos Input
• Designed for Use with TMS1000 Type Microprocessors for Cost-Effective High-Volume Applications
• Bl-Mos Technology
• Only 40 mW Typical Power Consumption