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ADC10732 Datasheet(PDF) 4 Page - Texas Instruments |
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ADC10732 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 33 page ADC10731, ADC10732, ADC10734, ADC10738 SNAS081D – MAY 1999 – REVISED MARCH 2013 www.ti.com Table 1. Pin Descriptions (continued) Pin Name Description This pin is another analog input pin. It can be used as a “pseudo ground” when the analog COM multiplexer is single-ended. This is the positive analog voltage reference input. In order to maintain accuracy, the voltage VREF+ range VREF (VREF = VREF+–VREF−) is 0.5 VDCto 5.0 VDC and the voltage at VREF+ cannot exceed AV+ +50 mV. The negative voltage reference input. In order to maintain accuracy, the voltage at this pin VREF− must not go below GND − 50 mV or exceed AV+ + 50 mV. These are the analog and digital power supply pins. These pins should be tied to the same AV+, DV+ power supply and bypassed separately. The operating voltage range of AV+ and DV+ is 4.5 VDC to 5.5 VDC. DGND This is the digital ground pin. AGND This is the analog ground pin. These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. Absolute Maximum Ratings (1) (2) (3) Supply Voltage (V+ = AV+ = DV+) 6.5V Total Reference Voltage (VREF+–VREF−) 6.5V Voltage at Inputs and Outputs V+ + 0.3V to −0.3V Input Current at Any Pin(4) 30 mA Package Input Current(4) 120 mA Package Dissipation at TA = 25°C (5) 500 mW Human Body Model 2500V ESD Susceptibility(6) Machine Model 150V N packages (10 seconds) 260°C Soldering Information Vapor Phase (60 seconds) 215°C SOIC Package Infrared (15 seconds) 220°C Storage Temperature −40°C to +150°C (1) All voltages are measured with respect to GND, unless otherwise specified. (2) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. (3) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and specifications. (4) When the input voltage (VIN) at any pin exceeds the power supplies (VIN < GND or VIN > AV + or DV+), the current at that pin should be limited to 30 mA. The 120 mA maximum package input current rating limits the number of pins that can safely exceed the power supplies with an input current of 30 mA to four. (5) The maximum power dissipation must be derated at elevated temperatures and is dictated by TJmax, θJA and the ambient temperature, TA. The maximum allowable power dissipation at any temperature is PD = (TJmax − TA)/θJA or the number given In the Absolute Maximum Ratings, whichever is lower. For this device, TJmax = 150°C. The typical thermal resistance (θJA) of these Paris when board mounted can be found in the following Power Dissipation table: (6) The human body model is a 100 pF capacitor discharged through a 1.5 k Ω resistor into each pin. The machine model is a 200 pF capacitor discharged directly into each pin. Operating Ratings (1) (2) Operating Temperature Range TMIN ≤ TA ≤ TMAX −40°C ≤ TA ≤ +85°C Supply Voltage (V+ = AV+ = DV+) +4.5V to +5.5V VREF+ AV+ +50 mV to −50 mV VREF− AV+ +50 mV to −50 mV VREF (VREF+–VREF−) +0.5V to V+ (1) Operating Ratings indicate conditions for which the device is functional, but do not ensure specific performance limits. For ensured specifications and test conditions, see the Electrical Characteristics table. The ensured specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions. (2) All voltages are measured with respect to GND, unless otherwise specified. 4 Submit Documentation Feedback Copyright © 1999–2013, Texas Instruments Incorporated Product Folder Links: ADC10731 ADC10732 ADC10734 ADC10738 |
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