The AMC7820 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.

• 100kHz SAMPLING RATE 12-BIT ADC
• 8 ANALOG INPUT CHANNELS
• THREE 12-BIT DACS
• NINE OPERATIONAL AMPLIFIERS
• THERMISTOR CURRENT SOURCE
• INTERNAL 2.5V REFERENCE
• SPI SERIAL INTERFACE
• 3V LOGIC COMPATIBLE
• SINGLE +5V SUPPLY
• LOW POWER: 40mW
• TQFP-48 PACKAGE
• APPLICATIONS
  • CW LASER AND PUMP LASER CURRENT CONTROL IN DWDM
  • TEC COOLER CURRENT CONTROL IN DWDM
  • OPTICAL POWER MONITORING
  • TUNABLE LASER

SPI is a trademark of Motorola.

• Number of ADC channels
• 8
• ADC resolution (bits)
• 12
• Number of DAC channels (#)
• 3
• DAC: resolution (Bits)
• 12
• Temperature sensing
• Remote
• GPIOs
• 0
• Interface type
• SPI
• Features
• Temp Sensor
• Operating temperature range (C)
• -40 to 85
• Rating
• Catalog
• ADC: sampling rate (KSPS)
• 100
• ADC: analog input range (Min) (V)
• 0
• ADC: analog input range (Max) (V)
• 5
• DAC: settling time (uS)
• 3
• DAC: output full scale (Min) (V)
• 0
• DAC: output full scale (Max) (V)
• 2.5, 5.0

AMC7820的完整型号有：AMC7820Y/250，以下是这些产品的关键参数及官网采购报价：

AMC7820Y/250，工作温度：-40 to 85，封装：TQFP (PFB)-48，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-2-260C-1 YEAR，引脚镀层/焊球材料：NIPDAU，TI官网AMC7820Y/250的批量USD价格：5.227（1000+）

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