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AD7124-4BCPZ-RL7 数据表(PDF) 8 Page - Analog Devices |
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AD7124-4BCPZ-RL7 数据表(HTML) 8 Page - Analog Devices |
8 / 90 page AD7124-4 Data Sheet Rev. A | Page 8 of 90 Parameter1 Min Typ Max Unit Test Conditions/Comments EXCITATION CURRENT SOURCES (IOUT0/IOUT1) Available on any analog input pin Output Current 50/100/250/ 500/750/1000 µA Initial Tolerance ±4 % TA = 25°C Drift 50 ppm/°C Current Matching ±0.5 % Matching between IOUT0 and IOUT1, VOUT = 0 V Drift Matching 5 30 ppm/°C Line Regulation (AVDD) 2 %/V AVDD = 3 V ± 5% Load Regulation 0.2 %/V Output Compliance2 AVSS − 0.05 AVDD − 0.37 V 50 µA/100 µA/250 µA/500 µA current sources, 2% accuracy AVSS − 0.05 AVDD − 0.48 V 750 µA and 1000 µA current sources, 2% accuracy BIAS VOLTAGE (VBIAS) GENERATOR Available on any analog input pin VBIAS AVSS + (AVDD − AVSS)/2 V VBIAS Generator Start-Up Time 6.7 µs/nF Dependent on the capacitance connected to AIN TEMPERATURE SENSOR Accuracy ±0.5 °C Sensitivity 13,584 Codes/°C LOW-SIDE POWER SWITCH On Resistance (RON) 7 10 Ω Allowable Current2 30 mA Continuous current BURNOUT CURRENTS AIN Current 0.5/2/4 µA Analog inputs must be buffered DIGITAL OUTPUTS (P1 to P4) Output Voltage High, VOH AVDD − 0.6 V ISOURCE = 100 µA Low, VOL 0.4 V ISINK = 100 µA DIAGNOSTICS Power Supply Monitor Detect Level Analog Low Dropout Regulator (ALDO) 1.6 V AVDD − AVSS ≥ 2.7 V Digital LDO (DLDO) 1.55 V IOVDD ≥ 1.75 V Reference Detect Level 0.7 1 V REF_DET_ERR bit active if VREF < 0.7 V AINM/AINP Overvoltage Detect Level AVDD + 0.04 V AINM/AINP Undervoltage Detect Level AVSS − 0.04 V INTERNAL/EXTERNAL CLOCK Internal Clock Frequency 614.4 − 5% 614.4 614.4 + 5% kHz Duty Cycle 50:50 % External Clock Frequency 2.4576 MHz Internal divide by 4 Duty Cycle Range 45:55 to 55:45 % LOGIC INPUTS2 Input Voltage Low, VINL 0.3 × IOVDD V 1.65 V ≤ IOVDD < 1.9 V 0.35 × IOVDD V 1.9 V ≤ IOVDD < 2.3 V 0.7 V 2.3 V ≤ IOVDD ≤ 3.6 V High, VINH 0.7 × IOVDD V 1.65 V ≤ IOVDD < 1.9 V 0.65 × IOVDD V 1.9 V ≤ IOVDD < 2.3 V 1.7 V 2.3 V ≤ IOVDD < 2.7 V 2 V 2.7 V ≤ IOVDD ≤ 3.6 V Hysteresis 0.2 0.6 V 1.65 V ≤ IOVDD ≤ 3.6 V Input Currents −1 +1 µA VIN = IOVDD or GND Input Capacitance 10 pF All digital inputs |
类似零件编号 - AD7124-4BCPZ-RL7 |
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类似说明 - AD7124-4BCPZ-RL7 |
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