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ADC0848BCV датащи(PDF) 3 Page - Texas Instruments |
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ADC0848BCV датащи(HTML) 3 Page - Texas Instruments |
3 / 25 page ADC0844, ADC0848 www.ti.com SNAS523D – JUNE 1999 – REVISED MARCH 2013 Operating Conditions (1) (2) Supply Voltage (VCC) 4.5 VDC to 6.0 VDC ADC0844CCN, ADC0848BCN, ADC0848CCN 0°C ≤TA≤70°C Temperature Range (TMIN≤TA≤TMAX) ADC0844BCJ(3), ADC0844CCJ(3), ADC0848BCV, −40°C≤TA≤85°C ADC0848CCV (1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating the device beyond its specified operating conditions. (2) All voltages are measured with respect to the ground pins. (3) Product/package combination obsolete; shown for reference only. Electrical Characteristics The following specifications apply for VCC = 5 VDC unless otherwise specified. Boldface limits apply from TMIN to TMAX; all other limits TA = Tj = 25°C. ADC0844CCN, ADC0848BCN, ADC0844BCJ(1) ADC0848CCN, ADC0844CCJ(1) Limit ADC0848BCV, Parameter Conditions Units ADC0848CCV Tested Design Tested Design Typ(2) Typ(2) Limit(3) Limit(4) Limit(3) Limit(4) CONVERTER AND MULTIPLEXER CHARACTERISTICS Maximum Total ADC0844BCN, ±½ ±½ LSB ADC0848BCN, BCV VREF = 5.00 VDC (5) Unadjusted ADC0844CCN, Error ±1 ±1 LSB ADC0848CCN, CCV ADC0844CCJ(1) ±1 LSB Minimum Reference Input Resistance 2.4 1.1 2.4 1.2 1.1 k Ω Maximum Reference Input Resistance 2.4 5.9 2.4 5.4 5.9 k Ω VCC + VCC + VCC + Maximum Common-Mode Input Voltage See(6) V 0.05 0.05 0.05 GND − GND − GND − Minimum Common-Mode Input Voltage See(6) V 0.05 0.05 0.05 DC Common-Mode Error Differential Mode ±1/16 ±¼ ±1/16 ±¼ ±¼ LSB Power Supply Sensitivity VCC = 5V±5% ±1/16 ± ⅛ ±1/16 ± ⅛ ± ⅛ LSB On Channel = 5V, Off −1 −0.1 −1 μA Channel = 0V(7) Off Channel Leakage Current On Channel = 0V, Off 1 0.1 1 μA Channel = 5V DIGITAL AND DC CHARACTERISTICS VIN(1), Logical “1” Input Voltage (Min) VCC = 5.25V 2.0 2.0 2.0 V VIN(0), Logical “0” Input Voltage (Max) VCC = 4.75V 0.8 0.8 0.8 V IIN(1), Logical “1” Input Current (Max) VIN = 5.0V 0.005 1 0.005 1 μA IIN(0), Logical “0” Input Current (Max) VIN = 0V −0.005 −1 −0.005 −1 μA (1) This product/package combination is obsolete. Shown for reference only. (2) Typical figures are at 25°C and represent most likely parametric norm. (3) Tested limits are specified to TI's AOQL (Average Outgoing Quality Level). (4) Design limits are specified by not 100% tested. These limits are not used to calculate outgoing quality levels. (5) Total unadjusted error includes offset, full-scale, linearity, and multiplexer error. (6) For VIN (−) ≥ VIN(+) the digital output code will be 0000 0000. Two on-chip diodes are tied to each analog input, which will forward- conduct for analog input voltages one diode drop below ground or one diode drop greater than VCC supply. Be careful during testing at low VCC levels (4.5V), as high level analog inputs (5V) can cause this input diode to conduct, especially at elevated temperatures, and cause errors for analog inputs near full-scale. The spec allows 50 mV forward bias of either diode. This means that as long as the analog VIN does not exceed the supply voltage by more than 50 mV, the output code will be correct. To achieve an absolute 0 VDC to 5 VDC input voltage range will therefore require a minimum supply voltage of 4.950 VDC over temperature variations, initial tolerance and loading. (7) Off channel leakage current is measured after the channel selection. Copyright © 1999–2013, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: ADC0844 ADC0848 |
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Аналогичное описание - ADC0848BCV |
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