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ADS8325IBDGKT Datasheet(PDF) 3 Page - Texas Instruments |
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ADS8325IBDGKT Datasheet(HTML) 3 Page - Texas Instruments |
3 / 36 page www.ti.com R ON 50W C (SAMPLE) 40pF Shut-Down Switch V DD I/O GND V DD ANALOGIN GND DiodeTurn-OnVoltage:0.35V EquivalentAnalogInputCircuit V DD REF GND EquivalentReference InputCircuit EquivalentDigitalInput/OutputCircuit 20pF 5kW RECOMMENDED OPERATING CONDITIONS ELECTRICAL CHARACTERISTICS: VDD = +5 V ADS8325 SBAS226C – MARCH 2002 – REVISED AUGUST 2007 EQUIVALENT INPUT CIRCUIT Over operating free-air temperature range (unless otherwise noted) MIN TYP MAX UNIT Low-voltage levels 2.7 3.6 V Supply voltage, GND to VDD 5V logic levels 4.5 5.0 5.5 V Reference input voltage 2.5 VDD V –IN –0.3 0 0.5 V Analog input voltage +IN – (–IN) 0 VREF V TJ Operating junction temperature range –40 +125 °C Over recommended operating free-air temperature at –40 °C to +85°C, V REF = 5V, –IN = GND, fSAMPLE = 100kHz, and fCLK = 24 × f SAMPLE, unless otherwise noted. ADS8325I ADS8325IB PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNIT ANALOG INPUT Full-scale range FSR +IN – (–IN) 0 VREF 0 VREF V Operating common-mode signal –0.3 0.5 –0.3 0.5 V Input resistance –IN = GND 5 5 G Ω Input capacitance –IN = GND, during sampling 45 45 pF Input leakage current –IN = GND ±50 ±50 nA Differential input capacitance +IN to –IN, during sampling 20 20 pF Full-power bandwidth FSBW FS sinewave, SINAD = –3dB 20 20 kHz DC ACCURACY Resolution 16 16 Bits No missing code NMC 15 16 Bits Integral linearity error INL ±3 ±6 ±1.5 ±4 LSB Offset error VOS ±0.75 ±1.5 ±0.5 ±1 mV Offset error drift TCVOS ±0.2 ±0.2 ppm/ °C Gain error GERR ±24 ±12 LSB Gain error drift TCGERR ±3 ±3 ppm/ °C Noise 20 20 μVRMS Power-supply rejection 4.75V ≤ VDD ≤ 5.25V 3 3 LSB SAMPLING DYNAMICS Conversion time tCONV 24kHz < fCLK ≤ 2.4MHz 6.667 666.7 6.667 666.7 μs Acquisition time tAQ fCLK = 2.4MHz 1.875 1.875 μs Throughput rate 100 100 kSPS Clock frequency 0.024 2.4 0.024 2.4 MHz AC ACCURACY Copyright © 2002–2007, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): ADS8325 |
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