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LM12454 Datasheet(PDF) 9 Page - Texas Instruments |
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LM12454 Datasheet(HTML) 9 Page - Texas Instruments |
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9 / 45 page  LM12454, LM12458, LM12H458 www.ti.com SNAS079A – MAY 2004 – REVISED FEBRUARY 2006 Converter AC Characteristics (1) (2) (3) (4) (continued) The following specifications apply to the LM12454, LM12458, and LM12H458 for VA+ = VD+ = 5V, VREF+ = 5V, VREF− = 0V, 12- bit + sign conversion mode, fCLK = 8.0 MHz (LM12H458) or fCLK = 5.0 MHz (LM12454/8), RS = 25Ω, source impedance for VREF+ and VREF− ≤ 25Ω, fully-differential input with fixed 2.5V common-mode voltage, and minimum acquisition time unless otherwise specified. Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25°C. Symbol Parameter Conditions Typical (5) Limits (6) Units VIN = ±5V fIN = 1 kHz −85.8 dB DTHD Differential Total Harmonic Distortion fIN = 20 kHz −79.9 dB fIN = 40 kHz −72.9 dB VIN = 5 Vp-p fIN = 1 kHz −80.3 dB Single-Ended Total Harmonic SETHD Distortion fIN = 20 kHz −75.6 dB fIN = 40 kHz −72.8 dB VIN = ±5V fIN = 1 kHz 12.6 Bits DENOB Differential Effective Number of Bits fIN = 20 kHz 12.2 Bits fIN = 40 kHz 12.1 Bits VIN = 5 Vp-p fIN = 1 kHz 11.3 Bits SEENOB Single-Ended Effective Number of Bits fIN = 20 kHz 11.2 Bits fIN = 40 kHz 10.8 Bits VIN = ±5V fIN = 1 kHz 87.2 dB Differential Spurious Free Dynamic DSFDR Range fIN = 20 kHz 78.9 dB fIN = 40 kHz 72.8 dB VIN = 5 VP-P, fIN = 40 kHz, −76 dB LM12454 MUXOUT Only Multiplexer Channel-to-Channel Crosstalk VIN = 5 VP-P, fIN = 40 kHz, −78 dB LM12(H)458 MUX plus Converter tPU Power-Up Time 10 ms tWU Wake-Up Time 10 ms Copyright © 2004–2006, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: LM12454 LM12458 LM12H458 |
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Similar Description - LM12454_14 |
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