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AD7764 датащи(PDF) 6 Page - Analog Devices |
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AD7764 датащи(HTML) 6 Page - Analog Devices |
6 / 33 page AD7764 Rev. A | Page 5 of 32 Parameter Test Conditions/Comments Specification Unit REFERENCE INPUT/OUTPUT V REF+ Input Voltage AV DD3 = 5 V ± 5% 4.096 V V REF+ Input DC Leakage Current ±1 µA max V REF+ Input Capacitance 5 pF typ DIGITAL INPUT/OUTPUT MCLK Input Amplitude 2.25 to 5.25 V Input Capacitance 7.3 pF typ Input Leakage Current ±1 μA/pin max V INH 0.8 × DV DD V min V INL 0.2 × DV DD V max V OH 4 2.2 V min V OL 0.1 V max ON-CHIP DIFFERENTIAL AMPLIFIER Input Impedance >1 MΩ Bandwidth for 0.1 dB Flatness 125 kHz Common-Mode Input Voltage Voltage range at input pins: V INA+ and VINA− −0.5 to +2.2 V Common-Mode Output Voltage On-chip differential amplifier pins: V OUTA+ and VOUTA− 2.048 V POWER REQUIREMENTS AV DD1 (Modulator Supply) ±5% 2.5 V AV DD2 (General Supply) ±5% 5 V AV DD3 (Differential Amplifier Supply) ±5% 5 V min/max AV DD4 (Ref Buffer Supply) ±5% 5 V min/max DV DD ±5% 2.5 V Normal Power Mode AI DD1 (Modulator) 19 mA typ AI DD2 (General) 5 MCLK = 40 MHz 13 mA typ AI DD3 (Differential Amplifier) AV DD3 = 5 V 10 mA typ AI DD4 (Reference Buffer) AV DD4 = 5 V 9 mA typ DI DD 5 MCLK = 40 MHz 37 mA typ Low Power Mode AI DD1 (Modulator) 10 mA typ AI DD2 (General) 5 MCLK = 40 MHz 7 mA typ AI DD3 (Differential Amplifier) AV DD3 = 5 V 5.5 mA typ AI DD4 (Reference Buffer) AV DD4 = 5 V 5 mA typ DI DD 5 MCLK = 40 MHz 20 mA typ POWER DISSIPATION Normal Power Mode MCLK = 40 MHz, decimate 64× 300 mW typ 371 mW max Low Power Mode MCLK = 40 MHz, decimate 64× 160 mW typ 215 mW max Power-Down Mode6 PWRDWN 1 held logic low mW typ 1 See the Terminology section. 2 SNR specifications in decibels are referred to a full-scale input, FS. Tested with an input signal at 0.5 dB below full scale, unless otherwise specified. 3 Output data rate (ODR) = [(MCLK/2)]/decimation rate. That is, the maximum ODR for AD7764 = [(40 MHz)/2)/64] = 312.5 kHz. 4 Tested with a 400 µA load current. 5 Tested at MCLK = 40 MHz. This current scales linearly with the MCLK frequency applied. 6 Tested at 125°C. |
Аналогичный номер детали - AD7764_15 |
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Аналогичное описание - AD7764_15 |
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