データシートサーチシステム |
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ADC0816 データシート(PDF) 6 Page - Texas Instruments |
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ADC0816 データシート(HTML) 6 Page - Texas Instruments |
6 / 19 page ADC0816, ADC0817 SNAS527C – JUNE 1999 – REVISED MARCH 2013 www.ti.com Electrical Characteristics Timing Specifications:VCC = VREF(+) = 5V, VREF(−) = GND, tr = tf = 20 ns and TA = 25°C unless otherwise noted. Symbol Parameter Conditions Min Typ Max Units tWS Minimum Start Pulse Width (Figure 5) (1) 100 200 ns tWALE Minimum ALE Pulse Width (Figure 5) 100 200 ns ts Minimum Address Set-Up Time (Figure 5) 25 50 ns TH Minimum Address Hold Time (Figure 5) 25 50 ns Analog MUX Delay Time tD RS= OΩ (Figure 5) 1 2.5 μs from ALE tH1, tH0 OE Control to Q Logic State CL= 50 pF, RL= 10k (Figure 8) 125 250 ns t1H, t0H OE Control to Hi-Z CL= 10 pF, RL= 10k (Figure 8) 125 250 ns tC Conversion Time fc=640 kHz, (Figure 5) (2) 90 100 116 μs fc Clock Frequency 10 640 1280 kHz Clock tEOC EOC Delay Time (Figure 5) 0 8 + 2 μs Periods CIN Input Capacitance At Control Inputs 10 15 pF TRI-STATE Output COUT At TRI-STATE Outputs (2) 10 15 pF Capacitance (1) If start pulse is asynchronous with converter clock or if fc > 640 kHz, the minimum start pulse width is 8clock periods plus 2 μs. For synchronous operation at fc ≤640 kHz take start high within 100 ns of clock going low. (2) The outputs of the data register are updated one clock cycle before the rising edge of EOC. Functional Description Multiplexer: The device contains a 16-channel single-ended analog signal multiplexer. A particular input channel is selected by using the address decoder. Table 1 shows the input states for the address line and the expansion control line to select any channel. The address is latched into the decoder on the low-to-high transition of the address latch enable signal. Table 1. Inputs States for the Address line Selected Address Line(1) Expansion AnalogChannel D C B A Control IN0 L L L L H IN1 L L L H H IN2 L L H L H IN3 L L H H H IN4 L H L L H IN5 L H L H H IN6 L H H L H IN7 L H H H H IN8 H L L L H IN9 H L L H H IN10 H L H L H IN11 H L H H H IN12 H H L L H IN13 H H L H H IN14 H H H L H IN15 H H H H H All Channels OFF X X X X L (1) X = don't care 6 Submit Documentation Feedback Copyright © 1999–2013, Texas Instruments Incorporated Product Folder Links: ADC0816 ADC0817 |
同様の部品番号 - ADC0816 |
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同様の説明 - ADC0816 |
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