ADC10664

具有输入多路复用器和采样/保持功能的 10 位 360 ns A/D 转换器

**NOTE: **The ADC10662 is obsolete. It is described here for reference only.

Using an innovative, patented multistep U.S. Patent Number 4918449 conversion technique, these 10-bit CMOS analog-to-digital converters offer sub-microsecond conversion times yet dissipating a maximum of only 235 mW. These converters perform 10-bit conversions in two lower-resolution “flashes”, yielding a fast A/D without the cost, power consumption, and other problems associated with true flash approaches. In addition to standard static performance specifications Linearity, Full-Scale Error, etc., dynamic performance THD, S/N is ensured.

The analog input voltage ADC is sampled and held by an internal sampling circuit. Input signals at frequencies from DC to over 250 kHz can therefore be digitized accurately without the need for an external sample-and-hold circuit.

Connecting an external resistor between the “speed-up” pin and ground reduces the typical conversion time to as little as 360 ns for a small linearity sacrifice.

For ease of interface to microprocessors, the ADC10662 and have been designed to appear as a memory location or I/O port without the need for external interface logic.

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Built-In Sample-and-Hold

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Single +5V Supply

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No External Clock Required

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Speed Adjust Pin for Faster Conversions

## Key Specifications

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Conversion Time 360 ns Typical

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Max. Sampling Rate: 1.5 MHz Min

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Low Power Consumption 235 mW Max

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Total Harmonic Distortion 50 kHz: −60 dB Max

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No Missing Codes Over Temperature

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