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ADT7518ARQ-REEL Arkusz danych(PDF) 6 Page - Analog Devices |
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ADT7518ARQ-REEL Arkusz danych(HTML) 6 Page - Analog Devices |
6 / 40 page ADT7518 Rev. A | Page 6 of 40 DAC AC CHARACTERISTICS1 Table 2. VDD = 2.7 V to 5.5 V, RL = 4.7 kΩ to GND; CL = 200 pF to GND; 4.7 kΩ to VDD; all specifications TMIN to TMAX, unless otherwise noted. Parameter2 Min Typ3 Max Unit Conditions/Comments Output Voltage Settling Time VREF = VDD = 5 V ADT7518 6 8 µs 1/4 scale to 3/4 scale change (40h to C0h) Slew Rate 0.7 V/µs Major-Code Change Glitch Energy 12 nV-s 1 LSB change around major carry Digital Feedthrough 0.5 nV-s Digital Crosstalk 1 nV-s Analog Crosstalk 0.5 nV-s DAC-to-DAC Crosstalk 3 nV-s Multiplying Bandwidth 200 kHz VREF = 2 V ±0.1 V p-p Total Harmonic Distortion –70 dB VREF = 2.5 V ±0.1 V p-p. Frequency = 10 kHz. 1 Guaranteed by design and characterization, not production tested. 2 See the section. Terminology 3 @ 25°C. SCL t4 t2 t1 t3 t5 t6 SDA DATA IN SDA DATA OUT Figure 2. I2C Bus Timing Diagram t1 t2 t3 t5 t6 t4 t7 t8 D7 CS SCLK DIN DOUT D6 D5 D4 D3 D2 D1 D0 X X X X X X X X X X X X XXXX D7 D6 D5 D4 D3 D2 D1 D0 Figure 3. SPI Bus Timing Diagram 200 µAI OH 1.6V TO OUTPUT PIN CL 50pF 200 µAI OL Figure 4. Load Circuit for Access Time and Bus Relinquish Time 4.7k Ω 4.7k Ω VDD TO DAC OUTPUT 200pF Figure 5. Load Circuit for DAC Outputs |
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