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LM9822 датащи(PDF) 4 Page - National Semiconductor (TI) |
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LM9822 датащи(HTML) 4 Page - National Semiconductor (TI) |
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4 / 22 page ![]() 4 www.national.com Symbol Parameter Conditions Typical (Note 9) Limits (Note 10) Units (Limits) Internal Reference Characteristics VREFMID Mid Reference Output Voltage 2.5 V VREF+ OUT Positive Reference Output Voltage 3.5 V VREF- OUT Negative Reference Output Voltage 1.5 V ∆V REF Differential Reference Voltage VREF+ OUT - VREF- OUT 2.0 V System Characteristics (In units of 12 bit LSBs) (see section 5.1, Internal Offsets) C Analog Channel Gain Constant (ADC Codes/V) Includes voltage reference variation, gain setting = 1 2107 1934 2281 LSB (min) LSB (max) VOS1 Pre-Boost Analog Channel Offset Error, CCD Mode 17.3 -61 +94 LSB (min) LSB (max) VOS1 Pre-Boost Analog Channel Offset Error, CIS Mode 27 -49 +103 LSB (min) LSB (max) VOS2 Pre-PGA Analog Channel Offset Error -40 -124 +44 LSB (min) LSB (max) VOS3 Post-PGA Analog Channel Offset Error -38 -130 +55 LSB (min) LSB (max) DC and Logic Electrical Characteristics The following specifications apply for AGND=DGND=0V, VA=+5.0VDC, VD=+3.0 or +5.0VDC, fMCLK=12MHz. Boldface limits apply for TA=TJ=TMIN to TMAX; all other limits A=TJ=25°C. (Notes 7& 8) Symbol Parameter Conditions Typical (Note 9) Limits (Note 10) Units (Limits) SCLK, SDI, SEN, MCLK, VSMP,CLMP Digital Input Characteristics VIN(1) Logical “1” Input Voltage VA=5.25V 2.0 V (max) VIN(0) Logical “0” Input Voltage VA=4.75V 0.8 V (min) IIN Input Leakage Current VIN=VA VIN=DGND 0.1 -0.1 µA(max) µA(max) CIN Input Capacitance 5 pF D0-D7 Digital Output Characteristics VOUT(1) Logical “1” Output Voltage IOUT=-360µA 0.8*VD V (min) VOUT(0) Logical “0” Output Voltage IOUT=1.6mA 0.2*VD V (max) Power Supply Characteristics IA Analog Supply Current Operating 75 108 mA (max) Power Down 675 900 µA (max) ID Digital Supply Current (Note 15) Operating 210 475 µA (max) Power Down 2 25 µA (max) Electrical Characteristics (Continued) The following specifications apply for AGND=DGND=0V, VA=+5.0VDC, VD=+3.0 or +5.0VDC, fMCLK=12MHz. Boldface limits apply for TA=TJ=TMIN to TMAX; all other limits TA=TJ=25°C. (Notes 7, 8, 12 & 16) |
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