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LM12434CIV データシート(PDF) 6 Page - National Semiconductor (TI) |
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LM12434CIV データシート(HTML) 6 Page - National Semiconductor (TI) |
6 / 80 page 20 Electrical Specifications (Continued) 221 Converter Static Characteristics The following specifications apply to the LM12434 and LM12 L 438 for VAa e VDa e 5V 33V AGND e DGND e 0V VREFa e 4096V 25V VREFb e 0V 12-bit a sign conversion mode fCLK e 80 MHz 6 MHz RS e 25X source impedance for VREFa and VREFb s 25X fully-differential input with fixed 2048V 125V common-mode voltage and minimum acquisition time unless otherwise specified Boldface limits apply for TA e TJ e TMIN to TMAX all other limits TA e TJ e 25 C (Notes 6 7 8 and 9) (Continued) Symbol Parameter Conditions Typical Limits Units (Note 10) (Note 11) (Limit) DNL 8-Bit a Sign and ‘‘Watchdog’’ Mode g 015 g 12 LSB (max) Differential Non-Linearity 8-Bit a Sign and ‘‘Watchdog’’ Mode After Auto-Zero g 005 g 12 LSB (max) Zero Error 8-Bit a Sign and ‘‘Watchdog’’ Positive g 01 g 12 LSB (max) and Negative Full-Scale Error 8-Bit a Sign and ‘‘Watchdog’’ Mode g 18 LSB DC Common Mode Error Multiplexer Channel-to-Channel g 005 LSB Matching VINa Non-Inverting GND V (min) Input Range VAa V (max) VINb Inverting GND V (min) Input Range VAa V (max) VINa b VINb Differential Input Voltage Range b VAa V (min) VAa V (max) VINa b VINb 2 Common Mode Input Voltage Range GND V (min) VAa V (max) PSS Power Supply Zero Error VAa e VDa e 5V g10% g 005 g 10 LSB (max) Sensitivity Full-Scale Error VREFa e 4096V VREFb e GND g 025 g 15 LSB (max) (Note 15) Linearity Error g 02 LSB CREF VREFa VREFb Input Capacitance 85 pF CIN Selected Multiplexer Channel Input 75 pF Capacitance 222 Converter Dynamic Characteristics The following specifications apply only to the LM12434 and LM12438 for VAa e VDa e 5V AGND e DGND e 0V VREFa e 4096V VREFb e 0V 12-bit a sign conversion mode fCLK e 80 MHz throughput rate e 1333 kHz RS e 25X source impedance for VREFa and VREFb s 25X fully-differential input with fixed 2048V 125V common-mode voltage and minimum acquisition time unless otherwise specified Boldface limits apply for TA e TJ e TMIN to TMAX all other limits TA e TJ e 25 C (Notes 6 7 8 and 9) Symbol Parameter Conditions Typical Limits Units (Note 10) (Note 11) (Limit) CLK Duty Cycle 50 % 40 % (min) 60 % (max) tC Conversion Time 13-Bit Resolution 44 (tCLK) 44 (tCLK) a 50 ns (max) Sequencer State S5 (Figure 10) 9-Bit Resolution 21 (tCLK) 21 (tCLK) a 50 ns (max) Sequencer State S5 (Figure 10) tA Acquisition Time Sequencer State S7 (Figure 10) tCLK e CLK Period (Programmable) Minimum for 13-Bits 9 (tCLK) 9(tCLK) a 50 ns (max) Maximum for 13-Bits (D e 15) 39 (tCLK) 39 (tCLK) a 50 ns (max) Minimum for 9-Bits (Figure 10) 2(tCLK) 2(tCLK) a 50 ns (max) Maximum for 9-Bits (D e 15) 2 (tCLK) 32 (tCLK) a 50 ns (max) 6 |
同様の部品番号 - LM12434CIV |
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同様の説明 - LM12434CIV |
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