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ADC12130 bảng dữ liệu(PDF) 6 Page - National Semiconductor (TI) |
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ADC12130 bảng dữ liệu(HTML) 6 Page - National Semiconductor (TI) |
6 / 42 page Converter Electrical Characteristics (Continued) The following specifications apply for (V + =V A+=VD+ = +5V, VREF+ = +4.096V, and fully differential input with fixed 2.048V common-mode voltage) or (V + =V A+=VD+ = 3.3V, VREF+ = 2.5V and fully-differential input with fixed 1.250V common-mode voltage), V REF− = 0V, 12-bit + sign conversion mode, source impedance for analog inputs, VREF − and V REF + ≤ 25Ω,f CK =fSK = 5 MHz, and 10 (t CK) acquisition time unless otherwise specified. Boldface limits apply for TA =TJ =TMIN to TMAX; all other limits T A =TJ = 25˚C. (Notes 7, 8, 9) Symbol Parameter Conditions Typical (Note 10) Limits (Note 11) Units (Limits) UNIPOLAR DYNAMIC CONVERTER CHARACTERISTICS S/(N+D) Signal-to-Noise Plus Distortion Ratio f IN = 1 kHz, VIN =5VPP,VREF + = 5.0V 69.4 dB f IN = 20 kHz, VIN =5VPP,VREF + = 5.0V 68.3 dB f IN = 40 kHz, VIN =5VPP,VREF+ = 5.0V 65.7 dB −3 dB Full Power Bandwidth V IN =5VPP, where S/(N+D) drops 3 dB 31 kHz DIFFERENTIAL DYNAMIC CONVERTER CHARACTERISTICS f IN = 1 kHz, VIN = ±5V, VREF + = 5.0V 77.0 dB S/(N+D) Signal-to-Noise Plus Distortion Ratio f IN = 20 kHz, VIN = ±5V, VREF + = 5.0V 73.9 dB f IN = 40 kHz, VIN = ±5V, VREF + = 5.0V 67.0 dB −3 dB Full Power Bandwidth V IN = ±5V, where S/(N+D) drops 3 dB 40 kHz REFERENCE INPUT, ANALOG INPUTS AND MULTIPLEXER CHARACTERISTICS C REF Reference Input Capacitance 85 pF C A/D A/DIN1 and A/DIN2 Analog Input Capacitance 75 pF A/DIN1 and A/DIN2 Analog Input Leakage Current V IN = +5.0V or VIN =0V ±0.1 µA CH0–CH7 and COM Input Voltage GND − 0.05 (V A+) + 0.05 V (min) V (max) C CH CH0–CH7 and COM Input Capacitance 10 pF C MUXOUT MUX Output Capacitance 20 pF Off Channel Leakage (Note 16) CH0–CH7 and COM Pins On Channel = 5V and Off Channel = 0V −0.01 µA On Channel = 0V and Off Channel = 5V 0.01 µA On Channel Leakage (Note 16) CH0–CH7 and COM Pins On Channel = 5V and Off Channel = 0V 0.01 µA On Channel = 0V and Off Channel = 5V −0.01 µA MUXOUT1 and MUXOUT2 Leakage Current V MUXOUT = 5.0V or VMUXOUT = 0V 0.01 µA R ON MUX On Resistance V IN = 2.5V and V MUXOUT = 2.4V 850 1900 Ω (max) R ON Matching Channel to Channel V IN = 2.5V and V MUXOUT = 2.4V 5% Channel-to-Channel Crosstalk V IN =5VPP,fIN = 40 kHz −72 dB MUX Bandwidth 90 kHz www.national.com 6 |
Số phần tương tự - ADC12130_06 |
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Mô tả tương tự - ADC12130_06 |
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