TI AMC7823IRTAT

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 digitalto-analog converters (DACs), four analog input out-ofrange 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.

• 12-Bit ADC (200kSPS): Eight Analog Inputs
• Input Range 0 to ±2×VREF
• Programmable VREF, 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 x 6 mm)

• Communications Equipment
• Optical Networks
• Automatic Test Equipment
• Industrial Control and Monitor
• Medical Equipment