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MAXIM MAX148BEAP product image
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MAXIM MAX148BEAP

Manufacturer
MAXIM
MPN
MAX148BEAP
LCSC Part #
C7454585
Packaging
SSOP-20
Customer #
Key Attributes
SPI 2.7V~5.25V SSOP-20 Analog to Digital Converters (ADC)
DatasheetMAXIM MAX148BEAP
Alternative Parts5
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement

Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Data Acquisition/Analog to Digital Converters (ADC)
ManufacturerMAXIM
PackagingSSOP-20
Operating Temperature-40℃~+85℃
InterfaceSPI
Quiescent Current (Iq)-
Voltage - Supply2.7V~5.25V
Number of Channels8
Integral non - linearity1LSB
Voltage ReferenceExternal
Clock/OscillatorBuilt-in;External
Clock Frequency1.8MHz;100kHz~2MHz
FeaturesBipolar input;Multiplexers;Power-on reset
Resolution(Bits)133kHz;10
S/N Ratio-
DNL (LSB)1LSB
ADC architectureSAR
Programmable GainNot supported
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Features

AI Translation
  • 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 devices’ analog inputs are software configurable for unipolar/bipolar and single-ended/differential operation.
  • The 4-wire serial interface connects directly to SPI/QSPITM and MICROWIRE devices without external logic.
  • A serial-strobe output allows direct connection to TMS320-family digital signal processors.
  • The MAX148/MAX149 use either the internal clock or an external serial-interface clock to perform successive-approximation analog-to-digital conversions.
  • The MAX149 has an internal 2.5V reference, while the MAX148 requires an external reference.
  • Both parts have a reference-buffer amplifier with a ±1.5% voltage-adjustment range.
  • These devices provide a hard-wired SHDN pin and a software-selectable power-down, and can be programmed to automatically shut down at the end of a conversion.
  • Accessing the serial interface automatically powers up the MAX148/MAX149, and the quick turn-on time allows them to be shut down between all conversions.
  • This technique can cut supply current to under 60μA at reduced sampling rates.
  • The MAX148/MAX149 are available in a 20-pin DIP and a 20-pin SSOP.
  • 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

AI Translation
  • Portable Data Logging
  • Data Acquisition
  • Medical Instruments
  • Battery-Powered Instruments
  • Pen Digitizers
  • Process Control