AMC7820

用于模拟监控和控制的集成多通道 ADC 和 DAC

The is a complete analog monitoring and control circuit that includes an 8-channel, 12-bit Analog-to-Digital Converter ADC, three 12-bit Digital-to-Analog Converters DACs, nine operational amplifiers, a thermistor current source, an internal +2.5V reference, and an SPI™ serial interface. External reference may be applied. Typical power dissipation is 40mW. For the ADC, the unbuffered analog input range is 0V to +5.0V, and the buffered analog common-mode input range is 0V to +3.8V. For the DACs, the analog output range is 0V to +2.5V or 0V to +5.0V.

The AMC7820 is ideal for multichannel applications where low power and small size are critical. The AMC7820 is available in a TQFP-48 package and is fully specified and tested over the –40°C to +85°C temperature range.

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100kHz SAMPLING RATE 12-BIT ADC

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8 ANALOG INPUT CHANNELS

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THREE 12-BIT DACS

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NINE OPERA ONAL AMPLIFIERS

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THERMISTOR CURRENT SOURCE

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INTERNAL 2.5V REFERENCE

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SPI SERIAL INTERFACE

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3V LOGIC COMPATIBLE

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SINGLE +5V SUPPLY

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LOW POWER: 40mW

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TQFP-48 PACKAGE

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APPLICATIONS

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CW LASER AND PUMP LASER CURRENT CONTROL IN DWDM

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TEC COOLER CURRENT CONTROL IN DWDM

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OPTICAL POWER MONITORING

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TUNABLE LASER

SPI is a trademark of Motorola.