MP8798AS Exar Corporation, MP8798AS Datasheet
MP8798AS
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MP8798AS Summary of contents
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... Specified for operation over the commercial / industrial (–40 and REF(+) to +85 C) temperature range, the MP8798 is available in plastic dual-in-line (PDIP), surface mount (SOIC), and shrink small outline (SSOP) packages. Temperature DNL Range Part No. (LSB) –40 to +85 C MP8798AS 1 –40 to +85 C MP8798AN 1 –40 to +85 C MP8798AQ 1 1 MP8798 CMOS is disconnected from REF(– ...
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MP8798 SIMPLIFIED BLOCK AND TIMING DIAGRAM Coarse Comparators REF(+) 1 REF(–) V REF1(–) PD Ladder S A IN1 A IN2 IN3 MUX A IN4 Decoder 4 PIN CONFIGURATIONS See Packaging Section ...
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PIN OUT DEFINITIONS PIN NO. NAME DESCRIPTION 1 DB3 Data Output Bit 3 2 DB4 Data Output Bit 4 3 DB5 Data Output Bit 5 4 DB6 Data Output Bit 6 5 DB7 Data Output Bit 7 6 DGND Digital ...
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MP8798 ELECTRICAL CHARACTERISTICS TABLE Unless Otherwise Specified 4. AGND REF(+) REF(–) A Parameter Symbol KEY FEATURES Resolution Sampling Rate ACCURACY Differential Non-Linearity DNL Integral Non-Linearity INL Zero ...
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ELECTRICAL CHARACTERISTICS TABLE (CONT’D) Parameter Symbol DIGITAL OUTPUTS Logical “1” Voltage V Logical “0” Voltage V Tristate Leakage I 1 Data Hold Time ( See NO TAG ) t HLD 1 Data Valid Delay 1 Write Pulse Width t WR ...
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MP8798 CLOCK SAMPLE AUTO SAMPLE AUTO N–1 BALANCE N BALANCE T S ANALOG INPUT V OH DATA V OL Figure 1. MP8798 Timing Diagram THEORY OF OPERATION Analog-to-Digital Conversion The MP8798 converts analog voltages ...
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Accuracy of Conversion: DNL and INL The transfer function for an ideal A/D converter is shown in Figure 4. DIGITAL CODES 0.5 LSB OFW = 0 1 LSB 3FE 3FD 002 001 000 LSB V V001 V002 V V REF(–) ...
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MP8798 Figure 7. gives a visual definition of the INL error. The chart shows a 3-bit converter transfer curve with greatly exaggerated DNL errors to show the deviation of the real transfer curve from the ideal one. After a tester ...
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Analog Input Multiplexer The MP8798 includes a 4-channel analog input multiplexer. The relationship between the clock, the multiplexer address, the WR and the output data is shown in Figure 10. Clock Sample N Sample M Old Address New Address t ...
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MP8798 Power Down Figure 13. shows the relationship between the clock, sampled A to output data relationship and the effect of power IN down. CLK SAMPLE DB0-DB9 N-2 Valid REF(+) Figure 13. ...
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APPLICATION NOTES Tantalum 0.1 F Chip Cap or low inductance capacitor Clock Transmission Line Termination Reference Voltage Source ...
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MP8798 0.1 F 100k Figure 15. Example of a Reference Voltage Source – For use Beckman Instruments #694-3-R10k resistor array or equivalent. NOTE: High R values affect the input ...
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Power Down write values to DAC DAC 4 to minimize power consumption. Figure 18. A/D Ladder and A Rev. 3.00 MP8798 A IN DAC8 IN1 A DAC7 IN IN2 DAC6 A ...
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MP8798 PERFORMANCE CHARACTERISTICS Graph 1. DNL vs. Sampling Frequency Graph 3. Supply Current vs. Sampling Frequency Graph 5. DNL vs. Reference Voltage Rev. 3.00 Graph 2. INL vs. Sampling Frequency Graph 4. Power Down Current vs. Sampling Frequency Graph 6. ...
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Graph 7. Supply Current vs. Temperature Graph 9. Reference Resistance vs. Rev. 3.00 Graph 8. Power Down Current vs. Temperature Temperature 15 MP8798 ...
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MP8798 28 LEAD PLASTIC DUAL-IN-LINE Seating Plane L B SYMBOL Note: Rev. 3.00 (300 MIL PDIP) NN28 S 15 ...
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LEAD SMALL OUTLINE D 28 Seating Plane e SYMBOL Rev. 3.00 (300 MIL JEDEC SOIC) S28 INCHES MILLIMETERS ...
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MP8798 28 LEAD SHRINK SMALL OUTLINE PACKAGE 28 1 Seating Plane e Rev. 3.00 (SSOP) A28 MILLIMETERS SYMBOL MIN MAX MIN A 1.73 2.05 0.068 A 0.05 0.21 0.002 1 B ...
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Rev. 3.00 Notes 19 MP8798 ...
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... While the information in this publication has been carefully checked; no responsibility, however, is assumed for inaccuracies. EXAR Corporation does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless EXAR Corporation receives, in writing, assurances to its satisfaction that: (a) the risk of injury or damage has been minimized ...