MAX1220 Overview
The MAX1220 MAX1223/MAX1257/MAX1258 integrate a 12-bit, multichannel, analog-to-digital converter (ADC), and a 12-bit, octal, digital-to-analog converter (DAC) in a single IC. These devices also include a temperature sensor and configurable general-purpose I/O ports (GPIOs) with a 25MHz SPI™-/QSPI™-/MICROWIRE™-patible serial interface. The ADC is available in 8/12/16 inputchannel versions.
MAX1220 Key Features
- 12-Bit, Octal, 2µs Settling DAC Ultra-Low Glitch Energy (4nV-s) Power-Up Options from Zero Scale or Full Scale Excellent
- Internal Reference or External Single-Ended/ Differential Reference Internal Reference Voltage 2.5V or 4.096V
- Internal ±1°C Accurate Temperature Sensor
- On-Chip FIFO Capable of Storing 16 ADC Conversion Results and One Temperature Result
- On-Chip Channel-Scan Mode and Internal Data-Averaging Features
- Analog Single-Supply Operation +2.7V to +3.6V or +4.75V to +5.25V
- 25MHz, SPI/QSPI/MICROWIRE Serial Interface
- AutoShutdown Between Conversions
- Low-Power ADC 2.5mA at 300ksps 22µA at 1ksps 0.2µA at Shutdown
- Low-Power DAC: 1.5µA