General Description
The MAX148/MAX149 10-bit data-acquisition systems combine an 8-channel multiplexer, high-bandwidth track/hold, and serial interface with high conversion speed and low power consumption. They operate from a single +2.7V to +5.25V supply, and sample to 133ksps. Both devicesâ analog inputs are software configurable for unipolar/bipolar and single-ended/differential operation.
Features
⦠8-Channel Single-Ended or 4-Channel Differential Inputs
⦠Single-Supply Operation: +2.7V to +5.25V
⦠Internal 2.5V Reference (MAX149)
⦠Low Power:
1.2mA (133ksps, 3V Supply)
54µA (1ksps, 3V Supply)
1µA (Power-Down Mode)
⦠SPI/QSPI/MICROWIRE/TMS320-Compatible 4-Wire
Serial Interface
⦠Software-Configurable Unipolar or Bipolar Inputs
⦠20-Pin DIP/SSOP Packages
Applications
Portable Data Logging
Data Acquisition
Medical Instruments
Battery-Powered Instruments
Pen Digitizers
Process Control
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