The MAX110/MAX111 analog-to-digital converters (ADCs) use an internal auto-calibration technique to achieve 14-bit resolution plus overrange, with no external components. Operating supply current is only 550μA (MAX110) and reduces to 4μA in power-down mode, making these ADCs ideal for high-resolution battery-powered or remote-sensing applications. A fast serial interface simplifies signal routing and opto-isolation, saves microcontroller pins, and offers compatibility with SPI, QSPI, and MICROWIRE. The MAX11080GUU/V+TW operates with ±5V supplies, and converts differential analog signals in the -3V to +3V range. The MAX111 operates with a single +5V supply and converts differential analog signals in the ±1.5V range, or single-ended signals in the 0V to +1.5V range. Internal calibration allows for both offset and gain-error correction under microprocessor (μP) control. Both devices are available in space-saving 16-pin DIP and SO packages, as well as an even smaller 20-pin SSOP package.
Feature
- Single +5V Supply (MAX111)
- Two Differential Input Channels
- 14-Bit Resolution Plus Sign and Overrange
- 0.03% Linearity (MAX110)
0.05% Linearity (MAX111)
- Low Power Consumption:
- 550μA (MAX110)
- 640μA (MAX111)
- 4μA Shutdown Current
- Up to 50 Conversions/sec
- 50Hz/60Hz Rejection
- Auto-Calibration Mode
- No External Components Required
- 16-Pin DIP/SO, 20-Pin SSOP
Applications
- Data Acquisition
- Panel Meters
- Process Control
- Temperature Measurement
- Weigh Scales