MAX1090

Industrial Control Systems
Data Logging
Energy Management
Patient Monitoring
Data-Acquisition Systems
Touchscreens

The MAX1090/MAX1092 low-power, 10-bit analog-to-digital converters (ADCs) feature a successive-approxi-mation ADC, automatic power-down, fast wake-up (2µs), on-chip clock, +2.5V internal reference, and high-speed, byte-wide parallel interface. The devicesoperate with a single +5V analog supply and feature a V_LOGIC pin that allows them to interface directly with a
+2.7V to +5.5V digital supply.Power consumption is only 10mW (V_DD= V_LOGIC) at a 400ksps max sampling rate. Two software-selectable power-down modes enable the MAX1090/MAX1092 to be shut down between conversions; accessing the par-allel interface returns them to normal operation.Powering down between conversions can cut supply current to under 10µA at reduced sampling rates. Both devices offer software-configurable analog inputs for unipolar/bipolar and single-ended/pseudo-differen-tial operation. In single-ended mode, the MAX1090 has eight input channels and the MAX1092 has four input channels (four and two input channels, respectively,when in pseudo-differential mode). Excellent dynamic performance and low power com-bined with ease of use and small package size make these converters ideal for battery-powered and data-acquisition applications or for other circuits with demanding power consumption and space require-ments.  The MAX1090 is available in a 28-pin QSOP package, while the MAX1092 comes in a 24-pin QSOP. For pin-compatible +3V, 10-bit versions, refer to the MAX1091/MAX1093 data sheet.