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SN751177N Datasheet(PDF) 6 Page - Texas Instruments |
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SN751177N Datasheet(HTML) 6 Page - Texas Instruments |
6 / 11 page SN751177, SN751178 DUAL DIFFERENTIAL DRIVERS AND RECEIVERS SLLS059D – FEBRUARY 1990 – REVISED MAY 1999 6 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 DRIVER SECTIONS electrical characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP† MAX UNIT VIK Input clamp voltage II = –18 mA –1.5 V VOH High-level output voltage VIH = 2 V, VIL = 0.8 V, IOH = –33 mA 3.7 V VOL Low-level output voltage VIH = 2 V, VIL = 0.8 V, IOH = 33 mA 1.1 V |VOD1| Differential output voltage IO = 0 1.5 6 V RL = 100 Ω See Figure 1 2 or |VOD2| Differential output voltage RL = 100 Ω, See Figure 1 1/2 VOD1‡ V OD2 g RL = 54 Ω, See Figure 1 1.5 5 VOD3 Differential output voltage See Note 4 1.5 5 V ∆|VOD| Change in magnitude of differential output voltage (see Note 5) ±0.2 V VOC Common-mode output voltage RL = 54 Ω or 100 Ω, See Figure 1 –1§ 3 V ∆|VOC| Change in magnitude of common-mode output voltage (see Note 5) ±0.2 V IO Output current with power off VCC = 0, VO = –7 V to 12 V ±100 µA IOZ High-impedance-state output current VO = –7 V to 12 V ±100 µA IIH High-level input current VIH = 2.7 V 20 µA IIL Low-level input current VIL = 0.4 V –100 µA VO = –7 V –250 IOS Short-circuit output current (see Note 6) VO = VCC 250 mA VO = 12 V 250 ICC Supply current No load Outputs enabled 80 110 mA ICC Supply current No load Outputs disabled 50 80 mA † All typical values are at VCC = 5 V and TA = 25°C. ‡ The minimum VOD2 with a 100-Ω load is either 1/2 VOD1 or 2 V, whichever is greater. § The algebraic convention, where the less positive (more negative) limit is designated as minimum, is used in this data sheet for common-mode output and threshold voltage levels only. NOTES: 4. See TIA/EIA-485-A Figure 3.5, Test Termination Measurement 2 5. ∆|VOD| and ∆|VOC| are the changes in magnitude of VOD and VOC, respectively, that occur when the input is changed from a high level to a low level. 6. Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second. switching characteristics at VCC = 5 V, CL = 50 pF, TA = 25°C PARAMETER TEST CONDITIONS MIN TYP MAX UNIT td(OD) Differential output delay time RL =54 Ω See Figure 3 20 25 ns tt(OD) Differential output transition time RL = 54 Ω, See Figure 3 27 35 ns tPLH Propagation delay time, low- to high-level output RL =27 Ω See Figure 4 20 25 ns tPHL Propagation delay time, high- to low-level output RL = 27 Ω, See Figure 4 20 25 ns tPZH Output enable time to high level RL = 110 Ω, See Figure 5 80 120 ns tPZL Output enable time to low level RL = 110 Ω, See Figure 6 40 60 ns tPHZ Output disable time from high level RL = 110 Ω, See Figure 5 90 120 ns tPLZ Output disable time from low level RL = 110 Ω, See Figure 6 30 45 ns |
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