DAC7573

具有 I2C 数字接口的四路 12 位 10us 数模转换器

The is a low-power, quad channel, 12-bit buffered voltage output DAC. Its on-chip precision output amplifier allows rail-to-rail output swing to be achieved. The DAC7573 utilizes an I²C compatible two wire serial interface supporting high-speed interface mode with address support of up to sixteen DAC7573s for a total of 64 channels on the bus.

The DAC7573 requires an external reference voltage to set the output range of the DAC. The DAC7573 incorporates a power-on-reset circuit that ensures that the DAC output powers up at zero volts and remains there until a valid write takes place to the device. The DAC7573 contains a power-down feature, accessed via the internal control register, that reduces the current consumption of the device to 200 nA at 5 V.

The low power consumption of this part in normal operation makes it ideally suited to portable battery operated equipment. The power consumption is less than 3mW at VDD=5 V reducing to 1 µW in power-down mode.

The DAC7573 is available in a 16-lead TSSOP package.

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_Micro_power Operation: 600 µA at 5 V VDD

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Power-On Reset to Zero

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+2.7 V to +5.5 V Analog Power Supply

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12-Bit Monotonic

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I²C™ Interface Up to 3.4 Mbps

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Data Transmit Capability

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On-Chip Output Buffer Amplifier, Rail-to-Rail Operation

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Double-Buffered Input Register

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Address Support for up to Sixteen DAC7573s

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Synchronous Update Support for up to 64 Channels

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Operation From –40°C to 105°C

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Small 16 Lead TSSOP Package

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APPLICA ONS

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Process Control

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Data Acquisition Systems

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Closed-Loop Servo Control

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PC Peripherals

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Portable Instrumentation

I2C is a trademark of Philips Corporation.