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ADS8517IDWR Datasheet(PDF) 4 Page - Texas Instruments |
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ADS8517IDWR Datasheet(HTML) 4 Page - Texas Instruments |
4 / 34 page ADS8517 SLAS527 – SEPTEMBER 2008.......................................................................................................................................................................................... www.ti.com ELECTRICAL CHARACTERISTICS (continued) At TA = -40°C to +85°C, fS = 200 kHz, VDIG = VANA = 5 V, using internal reference (see Figure 39), unless otherwise noted. ADS8517I ADS8517IB(1) PARAMETER TEST CONDITIONS MIN TYP MAX MIN TYP MAX UNIT REFERENCE Internal reference voltage No load 2.48 2.5 2.52 2.48 2.5 2.52 V Internal reference source current 1 1 µA (must use external buffer) Internal reference drift 8 8 ppm/°C External reference voltage range 2.3 2.5 2.7 2.3 2.5 2.7 V for specified linearity External reference current drain External 2.5-V reference 100 100 µA DIGITAL INPUTS VIL Low-level input voltage(9) VDIG = 1.65 V to 5.5 V –0.3 0.6 –0.3 0.6 V VIH High-level input voltage(9) VDIG = 1.65 V to 5.5 V 0.5 x VDIG VDIG + 0.3 0.5 x VDIG VDIG + 0.3 V IIL Low-level input current VIL = 0 V ±10 ±10 µA IIH High-level input current VIH = 5 V ±10 ±10 µA DIGITAL OUTPUTS Data format - Parallel 16-bits in 2-bytes, Serial Data coding - Binary twos complement or straight binary ISINK = 1.6mA, VOL Low-level output voltage 0.45 0.45 V VDIG = 1.65V to 5.5V ISOURCE = 500µA, VOH High-level output voltage VDIG – 0.45 VDIG – 0.45 V VDIG = 1.65V to 5.5V High-Z state, Leakage current ±5 ±5 µA VOUT = 0 V to VDIG Output capacitance High-Z state 15 15 pF DIGITAL TIMING Bus access time RL = 3.3 kΩ, CL = 50 pF 83 83 ns Bus relinquish time RL = 3.3 kΩ, CL = 10 pF 83 83 ns POWER SUPPLIES VDIG Interface voltage 1.65 1.8 5.5 1.65 1.8 5.5 V VANA ADC core voltage 4.5 5 5.5 4.5 5 5.5 V IDIG Interface current VDIG = 5 V 0.3 0.3 mA IANA ADC core current VANA = 5 V 9 9 mA VANA = VDIG = 5 V, 47 60 47 60 mW fS = 200 kHz Power dissipation REFD high with BUF on 42 42 mW PWRD and REFD high 50 50 µW TEMPERATURE RANGE Specified performance –40 +85 –40 +85 °C Derated performance –55 +125 –55 +125 °C Storage temperature –65 +150 –65 +150 °C TSSOP 62 62 θ JA Thermal impedance °C/W SO 46 46 (9) TTL-compatible at 5V supply. Table 1. Analog Input Range Connections (see Figure 38 and Figure 39) ANALOG INPUT RANGE CONNECT R1IN VIA 200 Ω TO CONNECT R2IN VIA 100 Ω TO IMPEDANCE ±10 V VIN CAP 45.7 k Ω 0 V to 5 V AGND VIN 20.0 k Ω 0 V to 4 V VIN VIN 21.4 k Ω 4 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated Product Folder Link(s): ADS8517 |
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