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ADC10321CIVT Folha de dados(PDF) 6 Page - Texas Instruments |
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ADC10321CIVT Folha de dados(HTML) 6 Page - Texas Instruments |
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6 / 27 page  ADC10321 SNAS028F – JUNE 2000 – REVISED MAY 2013 www.ti.com CONVERTER ELECTRICAL CHARACTERISTICS The following specifications apply for VA = +5.0VDC, VD = 5.0VDC, VD I/O = 5.0VDC, VREF+ = +3.5VDC, VREF− = +1.5VDC, CL = 20pF, fCLK = 20MHz, RS = 25Ω. Boldface limits apply for TA = TMIN to TMAX: all other limits TA = 25°C (1) Symbol Parameter Conditions Typical(2) Limits(3) Units Static Converter Characteristics INL Integral Non-Linearity ±0.45 ±1.0 LSB(max) DNL Differential-Non Linearity ±0.35 ±0.85 LSB(max) Resolution with No Missing 10 Bits Codes Zero Scale Offset Error −6 mV(max) Full-Scale Error −6 mV(max) Dynamic Converter Characteristics fIN = 1.0MHz 9.5 Bits ENOB Effective Number of Bits fIN = 4.43MHz 9.5 9.0 Bits(min) fIN = 10MHz 9.2 Bits fIN = 1.0MHz 59 dB Signal-to-Noise Plus Distortion S/(N+D) fIN = 4.43MHz 59 56 dB(min) Ratio fIN = 10MHz 57 dB fIN = 1.0MHz 60 dB SNR Signal-to-Noise Ratio fIN = 4.43MHz 60 58 dB(min) fIN = 10MHz 58 dB fIN = 1.0MHz −71 dB THD Total Harmonic Distortion fIN = 4.43MHz −70 −59 dB(min) fIN = 10MHz −66 dB fIN = 1.0MHz 74 dB SFDR Spurious Free Dynamic Range fIN = 4.43MHz 72 60 dB fIN = 10MHz 68 dB DG Differential Gain Error fIN = 4.43MHz, fCLK = 17.72MHz 0.5 %(max) DP Differential Phase Error fIN = 4.43MHz, fCLK = 17.72MHz 0.5 deg(max) Overrange Output Code VIN > VREF+ 1023 Underrange Output Code VIN < VREF− 0 BW Full Power Bandwidth 150 MHz Change in Full Scale with 4.5V to 5.5V PSRR Power Supply Rejection Ratio 56 dB Supply Change Reference and Analog Input Characteristics(4) 1.3 V(min) VIN Analog Input Range 4.0 V(max) CIN Analog VIN Input Capacitance 5 pF IIN Input Leakage Current 10 µA 850 Ω(min) RREF Reference Ladder Resistance 1000 1150 Ω(max) VREF+ Positive Reference Voltage 3.5 4.0 V(max) VREF− Negative Reference Voltage 1.5 1.3 V(min) (VREF+) 1.0 V(min) Total Reference Voltage 2.0 −(VREF −) 2.7 V(max) (1) The inputs are protected as shown below. Input voltage magnitudes up to 500mV beyond the supply rails will not damage this device. However, errors in the A/D conversion can occur if the input goes above VA or below AGND by more than 300 mV. See Figure 1, Figure 2 and Figure 3. (2) Typical figures are at TA = TJ = 25°C, and represent most likely parametric norms. (3) Tested limits are specified to TI's AOQL (Average Outgoing Quality Level). (4) When the input signal is between VREF+ and (VA + 300mV), the output code will be 3FFh, or all 1s. When the input signal is between −300 mV and VREF−, the output code will be 000h, or all 0s. 6 Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated Product Folder Links: ADC10321 |
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