Rainbow-electronics ADC10158 Manual de usuario

TL/H/11225ADC10154, ADC10158 10-Bit Plus Sign 4 ms ADCs with4- or 8-Channel MUX, Track/Hold and ReferenceJanuary 1995ADC10154, ADC10158 10-Bit Plus Si

Typical Reference Performance CharacteristicsLoad Regulation (3 Typical Parts)Line Regulation(3 Typical Parts)vs TemperatureOutput Driftvs Supply Volt

Leakage Current Test CircuitTL/H/11225–10TRI-STATE Test Circuits and WaveformsTL/H/11225–11TL/H/11225–12TL/H/11225–13TL/H/11225–1411

Timing DiagramsTL/H/11225–15DIAGRAM 1. Starting a Conversion with New MUX Channel and Output ConfigurationTL/H/11225–16DIAGRAM 2. Starting a Conversio

Timing Diagrams (Continued)TL/H/11225–17DIAGRAM 3. Reading the Conversion ResultMultiplexer Addressing and Output Data Configuration TablesTABLE I. AD

Multiplexer Addressing and Output Data Configuration Tables (Continued)TABLE II. ADC10158 Multiplexer AddressingMUX AddressCSWR RDChannel NumberModeMU

Detailed Block DiagramTL/H/11225–1815

Connection DiagramsDual-In Line and SO PackagesTL/H/11225–2Top ViewOrder Number ADC10154NS Package NumbersJ24A, M24B or N24ATL/H/11225–3Top ViewOrder

2.0 Functional DescriptionThe ADC10154 and ADC10158 use successive approxima-tion to digitize an analog input voltage. Additional logic hasbeen incorp

2.0 Functional Description (Continued)Digital Interface Hints:#Reads and writes can be completely asynchronous toCLK.#In addition to the timing indica

3.0 Applications Information (Continued)3.2 REFERENCE CONSIDERATIONSThe voltage difference between the VREFaand VREFbin-puts defines the analog input

Absolute Maximum Ratings (Notes1&3)If Military/Aerospace specified devices are required,please contact the National Semiconductor SalesOffice/Dist

3.0 Applications Information (Continued)The minimum value of VREF(VREFeVREFabVREFb)can be quite small (see Typical Performance Characteris-tics) to al

3.0 Applications Information (Continued)TL/H/11225–23FIGURE 5. Analog Input ModelThe curve ‘‘Signal to Noise Ratio vs. Output Frequency’’(Figure 6)giv

3.0 Applications Information (Continued)Protecting the Analog Inputs(R1aR2)//R3s1kTL/H/11225–25Note 1: Diodes are 1N914.Note 2: The protection diodes

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Physical Dimensions inches (millimeters)Dual-In-Line Package (M)Order Number ADC10154CIWMNS Package Number M24BDual-In-Line Package (M)Order Number AD

Physical Dimensions inches (millimeters) (Continued)Dual-In-Line Package (N)Order Number ADC10154CINNS Package Number N24A25

ADC10154, ADC10158 10-Bit Plus Sign 4 ms ADCs with4- or 8-Channel MUX, Track/Hold and ReferencePhysical Dimensions inches (millimeters) (Continued)Dua

Electrical CharacteristicsThe following specifications apply for VaeAVaeDVaea5.0 VDC,VREFae5.000 VDC,VREFbeGND, VbeGND forunipolar operation or Vbeb5.

Electrical CharacteristicsThe following specifications apply for VaeAVaeDVaea5.0 VDC,VREFae5.000 VDC,VREFbeGND, VbeGND forunipolar operation or Vbeb5.

Electrical CharacteristicsThe following specifications apply for VaeAVaeDVaea5.0 VDC,VREFae5.000 VDC,VREFbeGND, VbeGNDfor unipolar operation or Vbeb5.

Electrical CharacteristicsThe following specifications apply for VaeAVaeDVaea5.0 VDC,VREFae5.000 VDC,VREFbeGND, VbeGNDfor unipolar operation or Vbeb5.

Electrical Characteristics (Continued)Note 9: A diode exists between AVaand DVaas shown below.TL/H/11225–5To guarantee accuracy, it is required that t

Electrical Characteristics (Continued)TL/H/11225–6FIGURE 1A. Transfer CharacteristicTL/H/11225–7FIGURE 1B. Simplified Error Curve vs Output Code8

Typical Converter Performance Characteristicsvs TemperatureCurrent (DIaaAIa)Total Positive Supplyvs Clock FrequencySupply Current (DIaaAIa)Total Posit