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AD7294 Datasheet(PDF) 3 Page - Analog Devices |
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AD7294 Datasheet(HTML) 3 Page - Analog Devices |
3 / 45 page Preliminary Technical Data AD7294 Rev. PrB | Page 3 of 45 SPECIFICATIONS DAC SPECIFICATIONS1 AVDD = DVDD 4.5 V to 5.5 V, AGND = DGND= 0 V, external 2.5 V reference. Temperature range for B version: −40°C to +105°C. All specifications TMIN to TMAX, unless otherwise noted. Offset pin is open, so range is from 0 to 5V. Table 1. Parameter Min Typ Max Unit Test Conditions / Comments ACCURACY Resolution 12 Bits Relative Accuracy (INL) ±4 LSB Differential Nonlinearity (DNL) ±1 LSB Guaranteed monotonic Zero-Scale Error 4 mV Full-Scale Error TBD Offset Error ±4 mV Measured in the linear region Offset Error TC ±5 µV/°C Gain Error ±0.024 % FSR Gain Temperature Coefficient 2 ppm FSR/°C DC Crosstalk 0.5 LSB DAC OUTPUT CHARACTERISTICS Output Voltage Range 0 5 V With a 2.5 V internal reference Output Voltage Span 0 15 V The 5 V o/p voltage range can be positioned on the span by the offset Output Voltage Settling Time TBD Slew Rate TBD Output Noise Spectral Density TBD Short-Circuit Current 40 mA FS current shorted to ground Load Current ±10 mA Source/Sink within 200 mV of supply Capacitive Load Stability RL = ∞ 1000 pF DC Output Impedance 0.5 Ω Power Supply Sensitivity ∆Vout/∆ΑVDD –85 dB OFFSET INPUT Input Range 0 V VOUT = 3 VOFFSET − 2VREF + VDAC 5 V DC Input Impedance 75 kΩ REFERENCE Reference Output Voltage 2.49 2.51 V Reference Input Voltage Range 0.1 2.5 V DC Leakage Current ±30 µA Input Capacitance 20 pF VREF Output Impedance 25 Ω Reference Temperature Coefficient 25 ppm/°C 10 ppm/°C typ 1 Guaranteed by design and characterization; not subject to production testing. |
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