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AD7877ACP-500RL7 Scheda tecnica(PDF) 4 Page - Analog Devices |
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AD7877ACP-500RL7 Scheda tecnica(HTML) 4 Page - Analog Devices |
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4 / 44 page  AD7877 Rev. A | Page 4 of 44 Parameter Min Typ Max Unit Test Conditions/Comments DAC Resolution 8 Bits Integral Nonlinearity ±1 Bits Differential Nonlinearity ±1 Guaranteed monotonic by design Voltage Mode Output Voltage Range 0 − VCC/2 V DAC register Bit 2 = 0, Bit 0 = 0 0 − VCC V DAC register Bit 2 = 0, Bit 0 = 1 Slew Rate −0.4, +0.5 V/µs Output Settling Time 12 15 µs 0 to 3/4 scale, RLOAD = 10 kΩ, CLOAD = 50 pF Capacitive Load Stability 50 100 pF RLOAD = 10 kΩ Output Impedance 75 kΩ Power-down mode Short Circuit Current 21 mA Current Mode Output Current Range 0 1000 µA DAC register Bit 2 = 1, full-scale current is set by RRNG Output Impedance Open Power-down mode LOGIC INPUTS Input High Voltage, VINH 0.7 VDRIVE V Input Low Voltage, VINL 0.3 VDRIVE V Input Current, IIN ±1 µA Typically 10 nA, VIN = 0 V or VCC Input Capacitance, CIN4 10 pF LOGIC OUTPUTS Output High Voltage, VOH VDRIVE − 0.2 V ISOURCE = 250 µA, VCC/VDRIVE = 2.7 V to 5.25 V Output Low Voltage, VOL 0.4 V ISINK = 250 µA Floating-State Leakage Current ±10 µA Floating-State Output Capacitance4 10 pF Output Coding Straight (natural) binary CONVERSION RATE Conversion Time 8 µs CS high to DAV low Throughput Rate 125 kSPS POWER REQUIREMENTS VCC (Specified Performance) 2.7 3.6 V Functional from 2.2 V to 5.25 V VDRIVE 1.65 VCC V ICC Digital I/Ps = 0 V or VCC Converting Mode 240 380 µA ADC on, internal reference off, VCC = 3.6 V 650 900 µA ADC on, internal reference on, VCC = 3.6 V 900 µA ADC on, internal reference on, DAC on Static 150 µA ADC on, but not converting, internal reference off, VCC = 3.6 V Shutdown Mode 1 µA 1 See the section. Terminology 2 Difference between Temp0 and Temp1 measurement. No calibration necessary. 3 Temperature drift is −2.1 mV/°C. 4 Sample tested @ 25°C to ensure compliance. |
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