ADC10154 Datasheet | National Semiconductor

Description The ADC10154 and ADC10158 are CMOS 10-bit plus sign successive approximation A/D converters with versatile analog input multiplexers, track/hold function and a 2.5V band-gap reference. The 4-channel or 8-channel multiplexers 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 parator. 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. 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 Applications n Process control n Instrumentation n Test equipment Key Specifications n n n n n n n n Resolution Integral linearity error Unipolar power dissipation Conversion time (10-bit + sign) Conversion time (8-bit) Sampling rate (10-bit + sign) Sampling rate (8-bit) Band-gap reference 10-bit plus sign ± 1 LSB (max) 33 m W (max) 4.4 µs (max) 3.2 µs (max) 166 k Hz 207 k Hz 2.5V ± 2.0% (max) ADC10158 Simplified Block Diagram DS011225-1 TRI-STATE ® is a registered trademark of National Semiconductor Corporation. © 1999 National Semiconductor Corporation DS011225 .national. ADC10154/ADC10158 Connection Diagrams Dual-in-Line and SO Packages Dual-in-Line and SO Packages DS011225-2 Top View Order Number ADC10154 NS Package Number M24B DS011225-3 Top View Order...