• 12-Bit ADC (200kSPS):
  • Eight Analog Inputs
  • Input Range 0 to 2 × V_REF
• Programmable V_REF, 1.25V or 2.5V
• Eight 12-Bit DACs (2µs Settling Time)
• Four Analog Input Out-of-Range Alarms
• Six General-Purpose Digital I/O
• Internal Bandgap Reference
• On-Chip Temperature Sensor
• Precision Current Source
• SPI™ Interface, 3V or 5V Logic Compatible
• Single 3V to 5V Supply
• Power-Down Mode/Low Power
• Small Package (QFN-40, 6 × 6 mm)
• APPLICATIONS
  • Communications Equipment
  • Optical Networks
  • Automatic Test Equipment
  • Industrial Control and Monitor
  • Medical Equipment

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The AMC7823 is a complete analog monitoring and control circuit that includes an 8-channel, 12-bit analog-to-digital converter (ADC), eight 12-bit digital- to-analog converters (DACs), four analog input out-of-range alarms, and six GPIOs to monitor analog signals and control external devices. Also, the AMC7823 has an internal sensor to monitor chip temperature, and a precision current source to drive remote thermistors, or RTDs, to monitor remote temperatures.

The AMC7823 has an internal programmable reference (+2.5V or +1.25V), and an SPI serial interface. An external reference can be used as well. Typical power dissipation is 100mW. The analog input range is 0V to +5V, and the analog output range is 0V to +2.5V or 0V to +5V. The AMC7823 is ideal for multichannel applications where low power and small size are critical. The AMC7823 is available in a 40-lead QFN package and is fully specified over the -40°C to +85°C temperature range.