ml2258 Microsemi Corporation, ml2258 Datasheet
ml2258
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ml2258 Summary of contents
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... GENERAL DESCRIPTION The ML2258 combines an 8-bit A/D converter, 8-channel analog multiplexer, and a microprocessor compatible 8- bit parallel interface and control logic in a single monolithic device. Easy interface to microprocessors is provided by the latched and decoded multiplexer address inputs and latched three-state outputs. The device is suitable for a wide range of applications from process and machine control to consumer, automotive, and telecommunication applications ...
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... DB2 15 PIN# NAME 13 GND 14 DB1 15 DB2 16 –V 17 DB0 18 DB4 19 DB5 20 DB6 21 DB7 22 ALE 23 ADDR0 24 ADDR1 25 ADDR2 26 IN0 27 IN1 28 IN2 ML2258 28-Pin PCC (Q28 IN7 CLK TOP VIEW FUNCTION Ground ...
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... CC Molded Chip Carrier Package 6.5V Vapor Phase (60 sec.) ..................................... 215°C Infrared (15 sec.) ............................................ 220°C +0.3V CC +0.3V CC OPERATING CONDITIONS Supply Voltage, V Temperature Range (Note 3) ................. T ML2258BIP, ML2258BIQ, ML2258CIP, ML2258CIQ ........................................ –40°C to +85° ±10%, –V MAX CC REF ML2258B TYP MIN (NOTE ...
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... ML2258 ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER AC and Dynamic Performance Characteristics (Note 10) t Sample and Hold Acquisition ACQ f Clock Frequency CLK t Conversion Time C SNR Signal to Noise Ratio THD Total Harmonic Distortion IMD Intermodulation Distortion FR Frequency Response t Clock Duty Cycle DC t End of Conversion Delay ...
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... GND 10pF 90% OUTPUT 50% ENABLE 10% GND OUTPUT 10 125 C – 0.1 1.0 CLOCK FREQUENCY (MHz) Figure 2. Linearity Error vs f CLK ML2258 50pF 90% 50 50pF 90% 50 ...
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... ML2258 TYPICAL PERFORMANCE CURVES 1 0.75 0.5 0. 1.5 1 0.5 0 Figure 4. Unadjusted Offset Error (Continued) 125 C – REF DC Figure 3. Linearity Error vs V REF REF 10.4MHz CLK Voltage REF 3MV 10.4MHz ...
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... FUNCTIONAL DESCRIPTION 1.1 MULTIPLEXER ADDRESSING The ML2258 contains an 8-channel single ended analog multiplexer. A particular input channel is selected by using the address decoder. The relationship between the address inputs, ADDR0–ADDR2, and the analog input selected is shown in Table 1. The address inputs are latched into the decoder on the rising edge of the address latch signal ALE ...
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... A conversion can be interrupted and restarted at any time by a new START pulse. 1.3 ANALOG INPUTS AND SAMPLE/HOLD The ML2258 has a true sample and hold circuit which samples both the selected input and ground simultaneously. This simultaneous sampling with a true S/H will give common mode rejection and AC linearity ...
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... This facilitates interfacing with external logic of µ The signal OE drives the data bus, DB0–DB7, into a high impedance state when held low. This allows the ML2258 to be tied directly to a µP system bus without any latches or buffers. ML2258 + nf , where ...
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... CC ZERO + ADJ 10 F Figure 8. Operating with Ratiometric Transducers 15 ML2258 START EOC 1/2 74HC221 Figure 9. Continuous Conversion Mode V CC 20k –V REF 10 F 0.15V CC ML2258 3k – +V REF 0.85V 85 XDR ADJ 24k ...
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... SEATING PLANE 0.015 - 0.021 (0.38 - 0.53) Package: Q28 28-Pin PLCC 0.450 - 0.456 0.485 - 0.495 22 (11.43 - 11.58) (12.32 - 12.57) 0.009 - 0.011 (0.23 - 0.28) 0.165 - 0.180 0.148 - 0.156 (4.06 - 4.57) (3.76 - 3.96) SEATING PLANE ML2258 0.280 - 0.296 0.299 - 0.325 (7.11 - 7.52) (7.60 - 8.26) 0.020 MIN (0.51 MIN) 0.008 - 0.012 0º - 15º (0.20 - 0.31) 0.042 - 0.056 (1.07 - 1.42) 0.025 - 0.045 (0.63 - 1.14) (RADIUS) 0.300 BSC 0.390 - 0.430 (7 ...
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... PART NUMBER PART NUMBER ML2258BIP (EOL) ADC0808CCN ML2258BIQ ADC0808CCV ML2258CIP (EOL) ADC0809CCN ML2258CIQ ADC0809CCV © Micro Linear 1997 is a registered trademark of Micro Linear Corporation Products described in this document may be covered by one or more of the following patents, U.S.: 4,897,611; 4,964,026; 5,027,116; 5,281,862; 5,283,483; 5,418,502; 5,508,570; 5,510,727; 5,523,940; ...