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AFE7225 Datasheet(PDF) 9 Page - Texas Instruments |
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AFE7225 Datasheet(HTML) 9 Page - Texas Instruments |
9 / 106 page AFE7222 AFE7225 www.ti.com SLOS711B – NOVEMBER 2011 – REVISED MARCH 2012 3 ELECTRICAL SPECIFICATIONS 3.1 ABSOLUTE MAXIMUM RATINGS (1) over operating free-air temperature range (unless otherwise noted) MIN MAX UNIT Supply voltage range, *VDD3* –0.3 3.6 V Supply voltage range, *VDD18* –0.3 2.1 V Voltage betweeen *VDD3* to *VDD18* –2.4 3.9 V INP_A_ADC, INM_A_ADC, INP_B_ADC, INM_B_ADC, AUXADC_A, AUXADC_B, CLKINN, CLKINP –0.3 2.1 V RESET, SCLK, SDATA SEN –0.3 3.9 V DAC*_DATA_nP/M, DAC_DCLK –0.3 2.1 V TA Operating free-air temperature range –40 85 °C TJ Operating junction tamperature range 125 °C Tstg Storage temperature range –65 150 °C ESD rating Human Body Model (HBM) 2 kV (1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute maximum rated conditions for extended periods may affect device reliability. 3.2 THERMAL INFORMATION AFE7222/AFE7225 THERMAL METRIC RGC PACKAGE UNITS 64 PINS θJA Junction-to-ambient thermal resistance 22.8 θJCtop Junction-to-case (top) thermal resistance 6.7 θJB Junction-to-board thermal resistance 2.3 °C/W ψJT Junction-to-top characterization parameter 0.1 ψJB Junction-to-board characterization parameter 2.2 θJCbot Junction-to-case (bottom) thermal resistance 0.2 3.3 RECOMMENDED OPERATING CONDITIONS over operating free-air temperature range (unless otherwise noted) AFE7222 AFE7225 PARAMETER TEST CONDITIONS UNIT MIN TYP MAX MIN TYP MAX DVDD18 voltage range 1.7 1.8 1.9 1.7 1.8 1.9 V AVDD3 voltage range 2.85 3.0 3.6 2.85 3.0 3.6 V Common mode voltage at VCM-0.05 VCM VCM+0.05 VCM–0.05 VCM VCM+0.05 V ADC input pins Common mode voltage at AVDD3 AVDD3 V DAC output pins ADC_CLK speed(1) 2.5(2) 65 2.5(2) 125 MSPS DAC_CLK speed(1) 1 130 1 250 MSPS (1) See Table 10-1 and Table 10-2 for corresponding maximum interface rates. (2) Minimum ADC_CLK speed can be reduced to 0.8 MSPS by writing the following serial interface registers: • Register address 0x208, value 0x8 • Register address 0x4, value 0x8 Copyright © 2011–2012, Texas Instruments Incorporated ELECTRICAL SPECIFICATIONS 9 Submit Documentation Feedback Product Folder Link(s): AFE7222 AFE7225 |
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