ADC10158 datasheet(1/23 Pages) NSC

Part #	ADC10158

Description	10-Bit Plus Sign 4 關s ADCs with 4- or 8-Channel MUX, Track/Hold and Reference

PDF	23 Pages

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Manufacturer	NSC [National Semiconductor (TI)]

Direct Link	http://www.national.com

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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

10-bit plus sign

n Integral linearity error

±1 LSB (max)

n Unipolar power dissipation

33 mW (max)

n Conversion time (10-bit + sign)

4.4 µs (max)

n Conversion time (8-bit)

3.2 µs (max)

n Sampling rate (10-bit + sign)

166 kHz

n Sampling rate (8-bit)

207 kHz

n Band-gap reference

2.5V ±2.0% (max)

ADC10158 Simplified Block Diagram

TRI-STATE® is a registered trademark of National Semiconductor Corporation.

DS011225-1

November 1999

DS011225

www.national.com

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ADC10158 Datasheet(PDF) 1 Page - National Semiconductor (TI)

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