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AD7841BSZ Fiches technique(PDF) 2 Page - Analog Devices |
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AD7841BSZ Fiches technique(HTML) 2 Page - Analog Devices |
2 / 13 page –2– AD7841–SPECIFICATIONS (VCC = 5 V 5%; VDD = 15 V 10%; VSS = –15 V 10%; GND = DUTGND = 0 V; RL = 5 k and CL = 50 pF to GND, TA 1 = T MIN to TMAX, unless otherwise noted) Parameter A B Unit Test Conditions/Comments ACCURACY Resolution 14 14 Bits Relative Accuracy ± 4 ± 2 LSB max Differential Nonlinearity –0.9/2 ± 1 LSB max Guaranteed Monotonic Over Temperature for All Grades Zero-Scale Error ± 8 ± 8 LSB max VREF(+) = +5 V, VREF(–) = –5 V. Typically within ±2 LSB Full-Scale Error ± 8 ± 8 LSB max VREF(+) = +5 V, VREF(–) = –5 V. Typically within ±2 LSB Gain Error ± 2 ± 2 LSB typ VREF(+) = +5 V, VREF(–) = –5 V Gain Temperature Coefficient 2 0.5 0.5 ppm FSR/ °C typ 10 10 ppm FSR/ °C max DC Crosstalk 2 120 120 µV max See Terminology. Typically 75 µV REFERENCE INPUTS 2 DC Input Impedance 100 100 M Ω typ Input Current ± 1 ± 1 µA max Per Input. Typically ±0.03 µA VREF(+) Range 0/5 0/5 V min/max VREF(–) Range –5/0 –5/0 V min/max [VREF(+) – VREF(–)] 2/10 2/10 V min/max For Specified Performance. Can Go as Low as 0 V, but Performance Not Guaranteed DUTGND INPUTS 2 DC Input Impedance 60 60 k Ω typ Max Input Current ±0.3 ±0.3 mA typ Per Input Input Range 3 –2/+2 –2/+2 V min/max OUTPUT CHARACTERISTICS 2 Output Voltage Swing VSS + 2.5 V to VSS + 2.5 V to V typ VOUT = 2 × (V REF(–) + [VREF(+) – VREF(–)] × D) VDD – 2.5 V VDD – 2.5 V – VDUTGND Short Circuit Current 15 15 mA max Resistive Load 5 5 k Ω min To 0 V Capacitive Load 50 50 pF max To 0 V DC Output Impedance 0.5 0.5 Ω max DIGITAL INPUTS 2 VINH, Input High Voltage 2.4 2.4 V min VINL, Input Low Voltage 0.8 0.8 V max IINH, Input Current Total for All Pins @ 25 °C ± 1 ± 1 µA max TMIN to TMAX ±10 ±10 µA max CIN, Input Capacitance 10 10 pF max POWER REQUIREMENTS 4 VCC 4.75/+5.25 4.75/+5.25 V min/max For Specified Performance VDD 15 V ± 10% 15 V ± 10% V min/max For Specified Performance VSS –15 V ± 10% –15 V ± 10% V min/max For Specified Performance Power Supply Sensitivity 2 ∆Full Scale/∆V DD 90 90 dB typ ∆Full Scale/∆V SS 90 90 dB typ ICC 0.5 0.5 mA max VINH = VCC, VINL = GND. Dynamic Current IDD 10 10 mA max Outputs Unloaded. Typically 8 mA ISS 10 10 mA max Outputs Unloaded. Typically 8 mA NOTES 1Temperature range for A and B Versions: –40 °C to +85°C. 2Guaranteed by characterization. Not production tested. 3 See DUTGND Voltage Range section. 4The AD7841 is functional with power supplies of ±12 V ±10% with reduced output range. Output amplifier requires 2.5 V of head room at the bottom and top ends of the transfer for function. At 12 V supplies it is recommended to restrict the reference range to ± 4 V. Specifications subject to change without notice. REV. B |
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