General Description
The MAX1280/MAX1281 12-bit ADCs combine an 8-channel analog-input multiplexer, high-bandwidth track/hold, and serial interface with high conversion speed and low power consumption. The MAX1280 operates from a single +4.5V to +5.5V supply; the MAX1281 operates from a single +2.7V to +3.6V supply. Both devices’ analog inputs are software configurable for unipolar/bipolar and single ended/pseudo-differential operation.

FEATUREs
♦ 8-Channel Single-Ended or 4-Channel Pseudo-Differential Inputs
♦ Internal Multiplexer and Track/Hold
♦ Single-Supply Operation
   +4.5V to +5.5V (MAX1280)
   +2.7V to +3.6V (MAX1281)
♦ Internal +2.5V Reference
♦ 400ksps Sampling Rate (MAX1280)
♦ Low Power 2.5mA (400ksps)
   1.3mA (Reduced-Power Mode)
   0.9mA (Fast Power-Down Mode)
   2µA (Full Power-Down)
♦ SPI/QSPI/MICROWIRE/TMS320-Compatible 4-Wire Serial Interface
♦ Software-Configurable Unipolar or Bipolar Inputs
♦ 20-Pin TSSOP Package