AT8591数据手册Analogtek中文资料规格书

描述 Description

The AT8591 is a single-chip, single-supply low power 8-bit CMOS data acquisition device with four analog inputs, one analog output and a serial I2C-bus interface. Three address pins A0, A1 and A2 are used for programming the hardware address, allowing the use of up to eight devices connected to the I2C-bus without additional hardware. Address, control and data to and from the device are transferred serially via the two-line bidirectional I2C-bus.The functions of the device include analog input multiplexing, on-chip track and hold function, 8-bit analog-to-digital conversion and an 8-bit digital-to-analog conversion. The maximum conversion rate is given by the maximum speed of the I2C-bus.

特性 Features

· Single power supply\r
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· Operating supply voltage 2.5 V to 6 V\r
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· Low standby current\r
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· Serial input/output via I2C-bus\r
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· Address by 3 hardware address pins\r
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· Sampling rate given by I2C-bus speed\r
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· 4 analog inputs programmable as single-ended or differential inputs\r
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· Auto-incremented channel selection\r
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· Analog voltage range from VSS to VDD\r
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· On-chip track and hold circuit\r
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· 8-bit successive approximation A/D conversion\r
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· Multiplying DAC with one analog output

应用 Application

· Closed loop control systems\r
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· Low power converter for remote data acquisition\r
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· Battery operated equipment\r
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· Acquisition of analog values in automotive, audio and TV applications.