PMD-1208LS User's Guide - LArTPC DocDB

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SpecificationsChapter 4Typical for 25 °C unless otherwise specified.Specifications in italic text are guaranteed by design.Analog input sectionParameter Conditions SpecificationA/D converter typeSuccessive Approximation typeInput voltage range for linear operation, Single CHx to GND±10V maxEnded ModeInput common-mode voltage range for linear CHx to GND-10V min, +20V maxoperation, Differential ModeAbsolute maximum input voltage CHx to GND ±40V maxInput current (Note 1)Vin = +10V70µA typVin = 0V-12µA typVin = -10V-94µA typNumber of channels8 single ended / 4 differential,software selectableInput ranges, Single Ended Mode ±10V, G=2Input ranges, Differential Mode ±20V, G=1±10V, G=2±5V, G=4±4V, G=5±2.5V, G=8±2.0V, G=10±1.25V, G=16±1.0V, G=20Software selectableThroughputSoftware paced 50 S/sContinuous scan 1.2kS/sBurst scan to 4K 8kS/ssample FIFOChannel Gain Queue Up to 8 elements Software configurable channel,range, and gain.Resolution (Note 2)Differential12 bits, no missing codesSingle ended11 bitsCAL Accuracy CAL = 2.5V ±0.05% typ, ±0.25% maxIntegral Linearity Error±1 LSB typDifferential Linearity Error±0.5 LSB typRepeatability±1 LSB typCAL currentSource5mA maxSink20µA min, 200nA typTrigger Source Software selectable External Digital: TRIG_INNote 1:Input current is a function of applied voltage on the analog input channels. For a giveninput voltage, Vin, the input leakage is approximately equal to (8.181*Vin-12) µA.Note 2:The AD7870 converter only returns 11-bits (0-2047 codes) in single-ended mode.4-1
PMD-1208LS User's GuideSpecificationsRange±20V 5.1±10V 6.1±5V 8.1±4V 9.1±2.5V 12.1±2V 14.1±1.25V 20.1±1V 24.1Range±10V 4.0Table 4-1. Accuracy, Differential ModeAccuracy (LSB)Table 4-2. Accuracy, Single-Ended ModeAccuracy (LSB)Table 4-3. Accuracy Components, Differential Mode - All values are (±)Range % of Reading Gain Error at FS (mV) Offset (mV) Accuracy at FS (mV)±20V 0.2 40 9.766 49.766±10V 0.2 20 9.766 29.766±5V 0.2 10 9.766 19.766±4V 0.2 8 9.766 17.766±2.5V 0.2 5 9.766 14.766±2V 0.2 4 9.766 13.766±1.25V 0.2 2.5 9.766 12.266±1V 0.2 2 9.766 11.766Table 4-4. Accuracy Components, Single-Ended Mode - All values are (±)Range % of Reading Gain Error at FS (mV) Offset (mV) Accuracy at FS (mV)±10V 0.2 20 19.531 39.531Analog output sectionParameter Conditions SpecificationD/A converter typePWMResolution 10-bits, 1 in 1024Maximum output range0 -5 VoltsNumber of channels2 voltage outputThroughput Software paced 100 S/s single channel mode50 S/s dual channel modePower on and reset voltageInitializes to 000h codeMaximum voltage (Note 3) No LoadVs1mA Load0.99*Vs5mA Load0.98*VsOutput drive Each D/A OUT 30mASlew rate0.14V/mS typNote 3:Vs is the USB bus +5V power. The maximum analog output voltage is equal to Vs at noload.V is system dependent and may be less than 5 volts.4-2
Page 2 and 3: PMD-1208LSPersonal Measurement Devi
Page 4 and 5: Trademark and Copyright Information
Page 6 and 7: PMD-1208LS User's GuideEnvironmenta
Page 8 and 9: Introducing the PMD-1208LSChapter 1
Page 10 and 11: PMD-1208LS User's GuideIntroducing
Page 12 and 13: PMD-1208LS User's GuideInstalling t
Page 14: Functional DetailsChapter 3Theory o
Page 17 and 18: PMD-1208LS User's GuideFunctional D
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Page 29 and 30: PMD-1208LS User's GuideSpecificatio
Page 31 and 32: Declaration of ConformityManufactur

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