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LTC1414 Datasheet(PDF) 4 Page - Linear Technology |
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LTC1414 Datasheet(HTML) 4 Page - Linear Technology |
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4 / 20 page  4 LTC1414 TI I G CHARACTERISTICS (Note 5) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS fSAMPLE(MAX) Maximum Sampling Frequency q 2.2 MHz tCONV Conversion Time q 220 330 400 ns tACQ Acquisition Time q 40 100 ns tTHROUGHPUT Throughput Time (Acquisition + Conversion) q 370 454 ns t1 CONVST to BUSY Delay CL = 25pF 10 ns t2 Data Ready Before BUSY ↑ ±20 ns t3 Delay Between Conversions (Note 9) q 100 ns t4 CONVST Low Time (Note 10) q 40 ns t5 CONVST High Time (Note 10) q 40 ns t6 Aperture Delay of Sample-and-Hold – 1 ns The q denotes specifications which apply over the full operating temperature range; all other limits and typicals TA = 25°C. Note 1: Absolute Maximum Ratings are those values beyond which the life of a device may be impaired. Note 2: All voltage values are with respect to ground with DGND and AGND wired together (unless otherwise noted). Note 3: When these pin voltages are taken below VSS or above VDD, they will be clamped by internal diodes. This product can handle input currents greater than 100mA below VSS or above VDD without latchup. Note 4: When these pin voltages are taken below VSS, they will be clamped by internal diodes. This product can handle input currents greater than 100mA below VSS without latchup. These pins are not clamped to VDD. Note 5: VDD = 5V, VSS = – 5V, fSAMPLE = 2.2MHz and tr = tf = 5ns unless otherwise specified. Note 6: Linearity, offset and full-scale specifications apply for a single- ended AIN+ input with AIN– grounded. Note 7: Integral nonlinearity is defined as the deviation of a code from a straight line passing through the actual endpoints of the transfer curve. The deviation is measured from the center of the quantization band. Note 8: Bipolar offset is the offset voltage measured from – 0.5LSB when the output code flickers between 0000 0000 0000 00 and 1111 1111 1111 11. Note 9: Recommended operating conditions. Note 10: The falling CONVST edge starts a conversion. If CONVST returns high at a critical point during the conversion it can create small errors. For best results ensure that CONVST returns high either within 225ns after the start of the conversion or after BUSY rises. TYPICAL PERFOR A CE CHARACTERISTICS Signal-to-Noise Ratio vs Input Frequency INPUT FREQUENCY (Hz) 10k 90 80 70 60 50 40 30 20 10 0 100k 1M 10M 1414 G02 INPUT FREQUENCY (Hz) 10k 0 –10 –20 –30 –40 –50 –60 –70 –80 –90 –100 100k 1M 10M 1414 G03 2nd THD 3rd INPUT FREQUENCY (Hz) 10k 100k 1M 10M 1414 TA02 1k 14 13 12 11 10 9 8 7 6 5 4 3 2 86 80 74 68 fSAMPLE = 2.2MHz S/(N + D) vs Input Frequency Distortion vs Input Frequency |
Similar Part No. - LTC1414_15 |
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Similar Description - LTC1414_15 |
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