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ADC10154 View Datasheet(PDF) - National ->Texas Instruments

Part NameDescriptionManufacturer
ADC10154 10-Bit Plus Sign 4 s ADCs with 4- or 8-Channel MUX, Track/Hold and Reference National-Semiconductor
National ->Texas Instruments National-Semiconductor
ADC10154 Datasheet PDF : 23 Pages
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November 1999
ADC10154/ADC10158
10-Bit Plus Sign 4 µs ADCs with 4- or 8-Channel MUX,
Track/Hold and Reference
General Description
The ADC10154 and ADC10158 are CMOS 10-bit plus sign
successive approximation A/D converters with versatile ana-
log input multiplexers, track/hold function and a 2.5V
band-gap reference. The 4-channel or 8-channel multiplex-
ers can be software configured for single-ended, differential
or pseudo-differential modes of operation.
The input track/hold is implemented using a capacitive array
and sampled-data comparator.
Resolution can be programmed to be 8-bit, 8-bit plus sign,
10-bit or 10-bit plus sign. Lower-resolution conversions can
be performed faster.
The variable resolution output data word is read in two bytes,
and can be formatted left justified or right justified, high byte
first.
Applications
n Process control
n Instrumentation
n Test equipment
Features
n 4- or 8- channel configurable multiplexer
n Analog input track/hold function
n 0V to 5V analog input range with single +5V power
supply
n −5V to +5V analog input voltage range with ±5V
supplies
n Fully tested in unipolar (single +5V supply) and bipolar
(dual ±5V supplies) operation
n Programmable resolution/speed and output data format
n Ratiometric or Absolute voltage reference operation
n No zero or full scale adjustment required
n No missing codes over temperature
n Easy microprocessor interface
Key Specifications
n Resolution
n Integral linearity error
n Unipolar power dissipation
n Conversion time (10-bit + sign)
n Conversion time (8-bit)
n Sampling rate (10-bit + sign)
n Sampling rate (8-bit)
n Band-gap reference
10-bit plus sign
±1 LSB (max)
33 mW (max)
4.4 µs (max)
3.2 µs (max)
166 kHz
207 kHz
2.5V ±2.0% (max)
ADC10158 Simplified Block Diagram
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
© 1999 National Semiconductor Corporation DS011225
DS011225-1
www.national.com
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