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AD7314 Datasheet(PDF) 2 Page - Analog Devices |
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AD7314 Datasheet(HTML) 2 Page - Analog Devices |
2 / 8 page REV. 0 –2– AD7314–SPECIFICATIONS1 (T A = TMIN to TMAX, VDD = 2.65 V to 2.9 V, unless otherwise noted.) Parameter Min Typ Max Unit Test Conditions/Comments TEMPERATURE SENSOR AND ADC Accuracy ±2.0 °CT A = –35 °C to +85°C. Resolution 10 Bits Update Rate, tR 400 µs Temperature Conversion Time 25 µs SUPPLIES Supply Voltage 2.65 2.9 V For Specified Performance Supply Current Normal Mode (Inactive) 250 300 µA Part not Converting Normal Mode (Active) 1 mA Part Converting Shutdown Mode 1 µA Power Dissipation 860 µWVDD = 2.65 V. Using Normal Mode (Auto Conversion) Power Dissipation VDD = 2.65 V. Using Shutdown Mode 1 sps 3 µW 10 sps 3.3 µW 100 sps 6 µW DIGITAL INPUT Input High Voltage, VIH 1.85 V VDD = 2.65 V to 2.9 V Input Low Voltage, VIL 0.53 V VDD = 2.65 V to 2.9 V Input Current, IIN ±1 µAVIN = 0 V to VDD Input Capacitance, CIN 10 pF All Digital Inputs DIGITAL OUTPUT Output High Voltage, VOH 2.4 V ISOURCE = ISINK = 200 µA Output Low Voltage, VOL 0.4 V IOL = 200 µA Output Capacitance, COUT 50 pF NOTES 1All specifications apply for –35 °C to +85°C unless otherwise noted. Specifications subject to change without notice. TIMINGCHARACTERISTICS 1,2 Parameter Limit Unit Comments t1 0 ns min CE to SCLK Setup Time t2 50 ns min SCLK High Pulsewidth t3 50 ns min SCLK Low Pulsewidth t4 4 35 ns max Data Access Time After SCLK Rising Edge t5 20 ns min Data Setup Time Prior to SCLK Falling Edge t6 0 ns min Data Hold Time After SCLK Falling Edge t7 0 ns min CE to SCLK Hold Time t8 4 40 ns max CE to SDO High Impedance NOTES 1Guaranteed by design and characterization, not production tested. 2All input signals are specified with tr = tf = 5 ns (10% to 90% of V DD) and timed from a voltage level of 1.6 V. 3All specifications apply for –35 °C to +85°C unless otherwise noted. 4Measured with the load circuit of Figure 2. Specifications subject to change without notice. (TA 3 = T MIN to TMAX, VDD = 2.65 V to 2.9 V, unless otherwise noted. See Figure 1.) |
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