General Description

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 MAX110 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.

特性 Features

? 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