AMC7820 - Integrated Multichannel ADC and DAC for Analog Monitoring and Control

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.

Products containing the "AMC7820" keyword are: AMC7820 , AMC7820EVM , AMC7820EVM , AMC7820Y , AMC7820Y/250 , AMC7820Y/250 , AMC7820Y/250G4 , AMC7820Y/250G4 , AMC7820Y/2K , AMC7820Y/2K , AMC7820Y/2KG4 , AMC7820Y/2KG4 , AMC7820Y250

• 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.