ZHCSUM1 数据表 | 德州仪器 TI.com.cn

ZHCSUM1C March 1993 – February 2024 SN75ALS1177 , SN75ALS1178

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NS|16
N|16

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5.4.1 Electrical Characteristics

over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)

PARAMETER		TEST CONDITIONS			MIN	TYP^⁽¹⁾	MAX	UNIT
V_IK	Input clamp voltage	I_I = -18 mA					-1.5	V
V_OH	High-level output voltage	V_IH = 2V,	V_IL = 0.8V,	I_OH = - 33mA		3.3		V
V_OL	Low-level output voltage	V_IH = 2V,	V_IL = 0.8V,	I_OL = 33mA		1.1		V
\|V_OD1\|	Differential output voltage	I_O = 0			1.5		6	V
\|V_OD2\|	Differential output voltage	V_CC = 5V,	R_L = 100Ω,	See Figure 6-1	1/2V_OD1 or 2^⁽²⁾			V
\|V_OD2\|	Differential output voltage	R_L = 54Ω,	See Figure 6-1		1.5	2.5	5
\|V_OD3\|	Differential output voltage	See ^{Note 4}			1.5		5	V
Δ\|V_OD\|	Change in magnitude of differential output voltage (see ^{Note 5})	R_L = 54Ω or 100Ω,		See Figure 6-1			±0.2	V
V_OC	Common-mode output voltage	R_L = 54Ω or 100Ω,		See Figure 6-1	-1⁽³⁾		3	V
Δ\|V_OC\|	Change in magnitude of common-mode output voltage (see ^{Note 5})	R_L = 54Ω or 100Ω,		See Figure 6-1			±0.2	V
I_O(OFF)	Output current with power off	V_CC = 0,	V_O = -7V to 12V				±100	μA
I_OZ	High-impedance-state output current	V_O = -7V to 12V					±100	μA
I_IH	High-level input current	V_IH = 2.7V					100	μA
I_IL	Low-level input current	V_IL = 0.4V					-100	μA
I_OS	Short-circuit output current	V_O = -7V					-250	mA
		V_O = V_CC					250
		V_O = 12V					250
		V_O = 0V					150
I_CC	Supply current (total package)	No load	Outputs enabled			35	50	mA
I_CC	Supply current (total package)	No load	Outputs disabled			20	50	mA

(1) All typical values are at V_CC = 5V and T_A = 25°C.

(2) The minimum V_OD2 with a 100Ω load is either 1/2 V_OD1 or 2V, whichever is greater.

(3) 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.

(4) See TIA/EIA-485-A Figure 6-3.5, test termination measurement 2.

(5) ∆|V_OD| and ∆|V_OC| are the changes in magnitude of V_OD and V_OC, respectively, that occur when the input is changed from a high level to a low level.