ADC, 5µs, 8-Bit, with Track/Hold and Reference

The MAX165 are high-speed (5µs) microprocessor (µP)- compatible, 8-bit ADCs with track/hold (T/H). The T/H function allows full-scale signals up to 50kHz (386mV/µs slew rate) to be acquired and digitized accurately. Both ADCs use a successive approximation technique to achieve fast conversions and low power dissipation. The MAX165 operate with a +5V supply and an internal or external +1.23V reference, and accept single-ended voltages ranging from 0V to 2VREF. The MAX165 are easily interfaced to all popular 8-bit µPs through standard /CS and /RD control signals. These signals control the start of conversions and data access. A /BUSY signal indicates the beginning and end of conversions. Since all the data outputs are latched and three-state buffered, the MAX165 can be directly tied to a IP data bus or system input/output port.

• 5µs Conversion Time
• Built-In Track/Hold
• ±1 LSB Max Total Unadjusted Error
• 50kHz Signal Bandwidth
• Internal 1.23V Bandgap Reference and Buffer
• Single +5V Supply Operation
• 8-Bit µP Interface
• 100ns Data-Access Time
• 15mW Typ Power Consumption
• Small Footprint Packages