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AD7276BUJZ-REEL7 Datasheet(PDF) 8 Page - Analog Devices |
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AD7276BUJZ-REEL7 Datasheet(HTML) 8 Page - Analog Devices |
8 / 28 page AD7276/AD7277/AD7278 Rev. C | Page 8 of 28 Parameter A Grade1, 2 B Grade1, 2 Unit Test Conditions/Comments POWER REQUIREMENTS VDD 2.35/3.6 2.35/3.6 V min/max IDD Digital I/Ps = 0 V or VDD Normal Mode (Static) 0.5 0.5 mA typ VDD = 3.6 V, SCLK on or off Normal Mode (Operational) 5.5 5.5 mA max VDD = 2.35 V to 3.6 V, fSAMPLE = 3 MSPS 3.5 3.5 mA typ VDD = 3 V Partial Power-Down Mode (Static) 34 34 μA typ Full Power-Down Mode (Static) 2 2 μA max −40°C to +85°C, typically 0.1 μA 10 10 μA max +85°C to +125°C Power Dissipation5 Normal Mode (Operational) 19.8 19.8 mW max VDD = 3.6 V, fSAMPLE = 3 MSPS 10.5 10.5 mW typ VDD = 3 V Partial Power-Down 102 102 μW typ VDD = 3 V Full Power-Down 7.2 7.2 μW max VDD = 3.6 V, −40°C to +85°C 1 Temperature range from −40°C to +125°C. 2 Typical specifications are tested with VDD = 3 V and at 25°C. 3 See the Terminology section. 4 Guaranteed by characterization. 5 See the Power vs. Throughput Rate section. TIMING SPECIFICATIONS—AD7276/AD7277/AD7278 VDD = 2.35 V to 3.6 V, TA = TMIN to TMAX, unless otherwise noted.1 Table 5. Parameter2 Limit at TMIN, TMAX Unit Description fSCLK3 500 kHz min4 48 MHz max B grade 16 MHz max Y grade tCONVERT 14 × tSCLK AD7276 12 × tSCLK AD7277 10 × tSCLK AD7278 tQUIET 4 ns min Minimum quiet time required between the bus relinquish and the start of the next conversion t1 3 ns min Minimum CS pulse width t2 6 ns min CS to SCLK setup time t35 4 ns max Delay from CS until SDATA three-state disabled t45 15 ns max Data access time after SCLK falling edge t5 0.4 tSCLK ns min SCLK low pulse width t6 0.4 tSCLK ns min SCLK high pulse width t75 5 ns min SCLK to data valid hold time t8 14 ns max SCLK falling edge to SDATA three-state 5 ns min SCLK falling edge to SDATA three-state t9 4.2 ns max CS rising edge to SDATA three-state TPOWER-UP6 1 μs max Power-up time from full power-down 1 Sample tested during initial release to ensure compliance. All timing specifications given are with a 10 pF load capacitance. With a load capacitance greater than this value, a digital buffer or latch must be used. 2 Guaranteed by characterization. All input signals are specified with tr = tf = 2 ns (10% to 90% of VDD) and timed from a voltage level of 1.6 V. 3 Mark/space ratio for the SCLK input is 40/60 to 60/40. 4 Minimum fSCLK at which specifications are guaranteed. 5 The time required for the output to cross the VIH or VIL voltage. 6 See the Power-Up Times section. |
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