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ADS8509IBDWG4 Datasheet(PDF) 4 Page - Texas Instruments |
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ADS8509IBDWG4 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 32 page ADS8509 SLAS324C – OCTOBER 2004 – REVISED APRIL 2010 www.ti.com ELECTRICAL CHARACTERISTICS (continued) At TA = –40°C to 85°C, fs = 250 kHz, VDIG = VANA = 5 V, using internal reference and 0.1%, 0.25-W fixed resistors (see Figure 29 and Figure 30) (unless otherwise specified) ADS8509I ADS8509IB PARAMETER TEST CONDITIONS UNIT MIN TYP MAX MIN TYP MAX 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 mA (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 Ext. 2.5-V ref. 100 100 mA DIGITAL INPUTS Logic levels VIL Low-level input voltage –0.3 0.8 –0.3 0.8 V VIH High-level input voltage 2.0 VDIG +0.3 V 2.0 VDIG +0.3 V V IIL Low-level input current VIL = 0 V ±10 ±10 mA IIH High-level input current VIH = 5 V ±10 ±10 mA DIGITAL OUTPUTS Data format (serial 16-bits) Data coding (binary 2's complement or straight binary) Pipeline delay (conversion results only available after completed conversion) Data clock (selectable for internal or external data clock) Internal clock (output only when EXT/INT Low 9 9 MHz transmitting data) External clock (can run EXT/INT High 0.1 26 0.1 26 continually but not recommended MHz for optimum performance) VOL Low-level output voltage ISINK = 1.6 mA 0.4 0.4 V VOH High-level output voltage ISOURCE = 500 mA 4 4 V Hi-Z State, ±5 ±5 mA Leakage current VOUT = 0 V to VDIG Output capacitance Hi-Z State 15 15 pF POWER SUPPLIES VDIG Digital input voltage 4.75 5 5.25 4.75 5 5.25 V VANA Analog input voltage 4.75 5 5.25 4.75 5 5.25 V Must be ≤ VANA IDIG Digital input current 4 4 mA IANA Analog input current 10 10 mA POWER DISSIPATION PWRD Low fS = 250 kHz 70 100 70 100 mW PWRD High 50 50 mW TEMPERATURE RANGE Specified performance –40 85 –40 85 °C Derated performance(9) –55 125 –55 125 °C Storage –65 150 –65 150 °C THERMAL RESISTANCE (qJA) SSOP 62 62 °C/W SO 46 46 °C/W (9) The internal reference may not be started correctly beyond the industrial temperature range (–40°C to 85°C), therefore use of an external reference is recommended. 4 Copyright © 2004–2010, Texas Instruments Incorporated Product Folder Link(s): ADS8509 |
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