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TLV2556 Datasheet(PDF) 5 Page - Texas Instruments |
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TLV2556 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 38 page TLV2556 SLAS355A – DECEMBER 2001 – REVISED SEPTEMBER 2002 5 www.ti.com electrical characteristics over recommended operating free-air temperature range, VREF+ = 5 V, SCLK frequency = 15 MHz when VCC = 5 V, VREF+ = 2.5 V, SCLK frequency = 10 MHz when VCC = 2.7 V (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT V High level output voltage VCC = 4.5 V, IOH = –1.6 mA VCC = 2.7 V, IOH = –0.2 mA 30 pF 2.4 V VOH High-level output voltage VCC = 4.5 V, IOH = –20 µA VCC = 2.7 V, IOH = –20 µA 30 pF VCC –0.1 V V Low level output voltage VCC = 5.5 V, IOL = 1.6 mA VCC = 3.6 V, IOH = 0.8 mA 30 pF 0.4 V VOL Low-level output voltage VCC = 5.5 V, IOL = –20 µA VCC = 3.6 V, IOH = –20 µA 30 pF 0.1 V I High impedance off state output current VO = VCC, CS at VCC 1 2.5 A IOZ High-impedance off-state output current VO = 0 V, CS at VCC –1 –2.5 µA CS at 0 V Ext Ref VCC = 5 V 1.2 I Operating supply current CS at 0 V, Ext. Ref VCC = 2.7 V 0.9 mA ICC Operating supply current CS at 0 V Int Ref VCC = 5 V 3 mA CS at 0 V, Int. Ref VCC = 2.7 V 2.4 I Software power down current For all digital inputs, 0 V ≤ VI ≤ 0.5 V or Ext. Ref 0.1 1 µA ICC(SPD) Software power-down current 0 V ≤ VI ≤ 0.5 V or VI ≥ VCC – 0.5 V, SCLK = 0 V Int. Ref 0.1 1 µA I Auto power down current For all digital inputs, 0 V ≤ VI ≤ 0.5 V or Ext. Ref 0.1 10 A ICC(APD) Auto power-down current 0 V ≤ VI ≤ 0.5 V or VI ≥ VCC – 0.5 V, SCLK = 0 V Int. Ref 1800 µA IIH High-level input current VI = VCC 0.005 2.5 µA IIL Low-level input current VI = 0 V –0.005 –2.5 µA I Selected channel leakage current Selected channel at VCC , Unselected channel at 0 V 1 µA Ilkg Selected channel leakage current Selected channel at 0 V, Unselected channel at VCC –1 µA f Internal oscillator frequency VCC = 4.5 V to 5.5 V 3.27 MHz f(OSC) Internal oscillator frequency VCC = 2.7 V to 3.6 V 2.56 MHz t Conversion time 13 5 [f ]+25ns VCC = 4.5 V to 5.5 V 4.15 µs tconv Conversion time = 13.5 [f(OSC)] + 25 ns VCC = 2.7 V to 3.6 V 5.54 µs Internal oscillator frequency switch over voltage 3.6 4.1 V Z Analog input MUX impedance‡ VCC = 4.5 V 600 Ω Zi Analog input MUX impedance‡ VCC = 2.7 V 500 Ω C Input capacitance Analog inputs 45 55 pF Ci Input capacitance Control inputs 5 15 pF † All typical values are at VCC = 5 V, TA = 25°C. ‡ The switch resistance is very nonlinear and varies with input voltage and supply voltage. This is the worst case. |
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