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AD7817BRU-REEL7 bảng dữ liệu(PDF) 4 Page - Analog Devices |
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4 / 20 page REV. C –4– AD7816/AD7817/AD7818–SPECIFICATIONS Parameter A Version *B Version *S Version Unit Test Conditions/Comments ANALOG INPUTS 7 (AD7817 and AD7818) Input Voltage Range VREF VREF VREF V max 0 00V min Input Leakage 1 1 1 µA min Input Capacitance 10 10 10 pF max LOGIC INPUTS 4 Input High Voltage, VINH 2.4 2.4 2.4 V min VDD = 5 V 10% Input Low Voltage, VINL 0.8 0.8 0.8 V max VDD = 5 V 10% Input High Voltage, VINH 2 22V min VDD = 3 V 10% Input Low Voltage, VINL 0.4 0.4 0.4 V max VDD = 3 V 10% Input Current, IIN 3 3 3 µA max Typically 10 nA, VIN = 0 V to VDD Input Capacitance, CIN 10 10 10 pF max LOGIC OUTPUTS 4 Output High Voltage, VOH ISOURCE = 200 µA 4 44V min VDD = 5 V 10% 2.4 2.4 2.4 V min VDD = 3 V 10% Output Low Voltage, VOL ISINK = 200 µA 0.4 0.4 0.4 V max VDD = 5 V 10% 0.2 0.2 0.2 V max VDD = 3 V 10% High Impedance Leakage Current 1 1 1 µA max High Impedance Capacitance 15 15 15 pF max NOTES *B and S Versions apply to AD7817 only. For operating temperature ranges, see Ordering Guide. 1AD7816 and AD7817 temperature sensors specified with external 2.5 V reference, AD7818 specified with on-chip reference. All other specifications with external and on-chip reference (2.5 V). For VDD = 2.7 V, TA = 85 °C max and temperature sensor measurement error = 3°C. 2See Terminology. 3The accuracy of the temperature sensor is affected by reference tolerance. The relationship between the two is explained in the section titled Temperature Measure- ment Error Due to Reference Error. 4Sample tested during initial release and after any redesign or process change that may affect this parameter. 5On-chip reference shuts down when external reference is applied. 6All specifications are typical for AD7818 at temperatures above 85 °C and with V DD greater than 3.6 V. 7Refers to the input current when the part is not converting. Primarily due to reverse leakage current in the ESD protection diodes. Specifications subject to change without notice. CHARGE REDISTRIBUTION DAC CLOCK DATA OUT DIN/OUT SCLK RD/ WR CONVST AGND CONTROL REG A B OVERTEMP REG A > B OTI CONTROL LOGIC VBALANCE SAMPLING CAPACITOR MUX REF 2.5V TEMP SENSOR REFIN VDD AD7816 Figure 1. AD7816 Functional Block Diagram CHARGE REDISTRIBUTION DAC CLOCK GENERATOR DATA OUT DIN/OUT SCLK RD/ WR CONVST AGND CONTROL REG A B OVERTEMP REG A > B OTI CONTROL LOGIC VBALANCE SAMPLING CAPACITOR MUX REF 2.5V TEMP SENSOR VDD VIN1 AD7818 Figure 2. AD7818 Functional Block Diagram |
Số phần tương tự - AD7817BRU-REEL7 |
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Mô tả tương tự - AD7817BRU-REEL7 |
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