ad386 Analog Devices, Inc., ad386 Datasheet
ad386
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ad386 Summary of contents
Page 1
... The fast acquisition time (3.6 I-I j.I. V) and low aperture jitter (40 ps) make it ideal for u'se with fast ND converters. The AD386 is complete with an internal hold capacitor, and it incorporates a compensation network which minimizes the track-w-hold charge offset and dielectric absorption. The AD386 also includes an internal differential amplifier for very high accuracy applications ...
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... Vs :t:15 V :t: 10%) AD386TD MiD Max Units Typ :tl0 V :tl0 0.6 2 IJ. V I" 0. ppm/"C 0.0002 % 0.00076 0.01 0.05 ppm/"C ...
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... SA 3.9 3.2 3.9 4.3 4.1 4.8 435 312 435 +85 -55 -H25 +150 -60 +150 AD386 Units mV/s Vis rIDS dB ppm fLs fJ-S j..LS fJ-S fLS j.. ",A f. j.LS j.LS j..LS !-lS roW °C °C ...
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... TEMPERATURE --c Figure 2. Differential Amplifier Common Mode Rejection vs. Temperature (100 Hz) -4- NC= NO CONNECT - %15 Vb DIFF AMI' ONLY - ",'5 V. SHA ONLY AD386 Pin Configuration Package Option. DH-24B DH-24B 100 ...90 ... " , r-, 280 ;/,SflR \.. " " ~ ...
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... STEP SIZE - II pop Figure 8. TIH Acquisition Time V5. Step Size 10 . ;;; ... / 0 0 It: 00 0.01 -50 -25 0 +25 +50 + TEMPERATURE 'C Figure 1,. Droop Rate vs. Temperature -5- ---- AD386 100 90 .. " '" r-r-. j :it 80 "\ ~ r--.. ... ;; It: > I" -PSJlR ffi I\.. ,/ I ..1-- ~ ""5 II II. 1 IIp,p SINEWAVE ...
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... TO SPECIFIED ACCURACY Figure 13. T/H Characteristic Features THEORY OF OPERATION The architecture of the AD386 differs from that usually encoun- tered in inverting Track-and-Hold (TIH) circuits. The hold capacitor in a conventional TIH (Figure 14) is always connected from the amplifier's output to its inverting inpuI. In track mode switch A is open and switch B is dosed. Since the summing junction is a virtual ground, the voltage across the capacitor fol- lows the input ...