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Part: AM26LS32AMWB
Category:
Interface and Interconnect
-> RS-422
Description: ti AM26LS32A, Quadruple Differential Line Receiver
Company: Texas Instruments, Inc.
Datasheet: Download AM26LS32AMWB datasheet File size : 462 kB
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Datasheet text preview:
AM26LS32AC, AM26LS32AI, AM26LS33AC, AM26LS32AM, AM26LS33AM QUADRUPLE DIFFERENTIAL LINE RECEIVERS
SLLS115D OCTOBER 1980 REVISED MARCH 2002
D D D D D D D D D D
AM26LS32A Devices Meet or Exceed the Requirements of ANSI TIA/EIA-422-B, TIA/EIA-423-B, and ITU Recommendations V.10 and V.11 AM26LS32A Devices Have ±7-V Common-Mode Range With ±200-mV Sensitivity AM26LS33A Devices Have ±15-V Common-Mode Range With ±500-mV Sensitivity Input Hysteresis . . . 50 mV Typical Operate From a Single 5-V Supply Low-Power Schottky Circuitry 3-State Outputs Complementary Output-Enable Inputs Input Impedance . . . 12 k Min Designed to Be Interchangeable With Advanced Micro Devices AM26LS32 and AM26LS33
AM26LS32AC . . . D, N, OR NS PACKAGE AM26LS32AI, AM26LS33AC . . . D OR N PACKAGE AM26LS32AM, AM26LS33AM . . . J PACKAGE (TOP VIEW)
1B 1A 1Y G 2Y 2A 2B GND
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
VCC 4B 4A 4Y G 3Y 3A 3B
AM26LS32AM, AM26LS33AM . . . FK PACKAGE (TOP VIEW)
1A 1B NC VCC 4B 1Y G NC 2Y 2A
3 4 5 6 7 8 2 1 20 19 18 17 16 15 14 9 10 11 12 13
description
The AM26LS32A and AM26LS33A devices are quadruple differential line receivers for balanced and unbalanced digital data transmission. The enable function is common to all four receivers and offers a choice of active-high or active-low input. The 3-state outputs permit connection directly to a bus-organized system. Fail-safe design ensures that, if the inputs are open, the outputs always are high.
4A 4Y NC G 3Y
NC No internal connection
Compared to the AM26LS32 and the AM26LS33, the AM26LS32A and AM26LS33A incorporate an additional stage of amplification to improve sensitivity. The input impedance has been increased, resulting in less loading of the bus line. The additional stage has increased propagation delay; however, this does not affect interchangeability in most applications. The AM26LS32AC and AM26LS33AC are characterized for operation from 0°C to 70°C. The AM26LS32AI is characterized for operation from 40°C to 85°C. The AM26LS32AM and AM26LS33AM are characterized for operation over the full military temperature range of 55°C to 125°C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. AM26LS32 and AM26LS33 are trademarks of Advanced Micro Devices, Inc.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
Copyright 2002, Texas Instruments Incorporated
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
2B GND NC 3B 3A
1
AM26LS32AC, AM26LS32AI, AM26LS33AC, AM26LS32AM, AM26LS33AM QUADRUPLE DIFFERENTIAL LINE RECEIVERS
SLLS115D OCTOBER 1980 REVISED MARCH 2002
FUNCTION TABLE (each receiver) DIFFERENTIAL AB VID VIT+ VIT VID VIT+ VID VIT X Open ENABLES G H X H X H X L H X G X L X L X L H X L OUTPUT Y H H ? ? L L Z H H
H = high level, L = low level, ? = indeterminate, X = irrelevant, Z = high impedance (off)
logic diagram (positive logic)
G G 1A 1B 2A 2B 3A 3B 4A 4B 4 12 2 1 6 7 10 9 14 15 3
1Y
5
2Y
11
3Y
13
4Y
2
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
AM26LS32AC, AM26LS32AI, AM26LS33AC, AM26LS32AM, AM26LS33AM QUADRUPLE DIFFERENTIAL LINE RECEIVERS
SLLS115D OCTOBER 1980 REVISED MARCH 2002
schematics of inputs and outputs
EQUIVALENT OF EACH DIFFERENTIAL INPUT VCC
EQUIVALENT OF EACH ENABLE INPUT VCC 8.3 k NOM
TYPICAL OF ALL OUTPUTS VCC 85 NOM
100 k A Input Only 20 k NOM Input 100 k B Input Only 960 NOM 960 NOM Enable
Output
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Input voltage, VI: Any differential input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±25 V Other inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Differential input voltage, VID (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±25 V Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table Package thermal impedance, JA (see Note 3): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73°C/W N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67°C/W NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64°C/W Case temperature for 60 seconds, TC: FK package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: D or N package . . . . . . . . . . . . . . . . 260°C Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds: J package . . . . . . . . . . . . . . . . . . . . . 300°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. All voltage values, except differential voltages, are with respect to the network ground terminal. 2. Differential voltage values are at the noninverting (A) input terminals with respect to the inverting (B) input terminals. 3. The package thermal impedance is calculated in accordance with JESD 51-7. DISSIPATION RATING TABLE PACKAGE FK J TA 25°C POWER RATING 1375 mW 1375 mW DERATING FACTOR ABOVE TA = 25°C 11.0 mW/°C 11.0 mW/°C TA = 70°C POWER RATING 880 mW 880 mW TA = 125°C POWER RATING 275 mW 275 mW
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
3
AM26LS32AC, AM26LS32AI, AM26LS33AC, AM26LS32AM, AM26LS33AM QUADRUPLE DIFFERENTIAL LINE RECEIVERS
SLLS115D OCTOBER 1980 REVISED MARCH 2002
recommended operating conditions
MIN VCC VIH VIL VIC IOH IOL TA Supply voltage voltage High-level input voltage Low-level input voltage Common-mode input voltage input voltage High-level output current Low-level output current AM26LS32AC, AM26LS33AC Operating free-air temperature AM26LS32AI AM26LS32AM, AM26LS33AM 0 40 55 AM26LS32A AM26LS33A AM26LS32AC, AM26LS32AI, AM26LS33AC AM26LS32AM, AM26LS33AM 4.75 4.5 2 0.8 ±7 ±15 440 8 70 85 125 °C NOM 5 5 MAX 5.25 5.5 UNIT V V V V µA mA
electrical characteristics over recommended ranges of VCC, VIC, and operating free-air temperature (unless otherwise noted)
PARAMETER VIT+ VIT Vhys VIK Positive-going input threshhold voltage Negative-going input threshhold voltage Hysteresis voltage (VIT+ VIT) Enable-input clamp voltage TEST CONDITIONS VO = VOHmin, IOH = 440 µA 440 µA VO = 0 45 V IOL = 8 mA 0.45 V, mA AM26LS32A AM26LS33A AM26LS32A AM26LS33A 0.2 0.5 50 VCC = MIN, VCC =MIN, VID = 1 V, , , VI(G) = 0.8 V, IOH = 440 µA VCC = MIN, VID = 1 V, , , VI(G) = 0.8 V VCC = MAX MAX VI = 15 V, VI = 15 V, VI = 5.5 V VI = 2.7 V VI = 0.4 V VIC = 15 V to 15 V, VCC = MAX One input to ac ground 12 15 15 85 II = 18 mA AM26LS32AC AM26LS33AC AM26LS32AM, AM26LS32AI, AM26LS33AM IOL = 4 mA IOL = 8 mA VO = 2.4 V VO = 0.4 V Other input at 10 V to 15 V Other input at 15 V to 10 V 1.5 2.7 V 2.5 0.4 0.45 20 20 1.2 1.7 100 20 0.36 mA µA µA mA k mA V MIN TYP MAX 0.2 0.5 UNIT V V mV V
VOH
High-level output voltage output voltage
VOL
Low-level output voltage output voltage Off-state (high-impedance state) state) output current Line input current input current Enable input current High-level enable current Low-level enable current Input resistance Short-circuit output current§
IOZ
µA
II II(EN) IIH IIL rI IOS
ICC Supply current VCC = MAX, All outputs disabled 52 70 mA All typical values are at VCC = 5 V, TA = 25°C, and VIC = 0. The algebraic convention, in which the less positive (more negative) limit is designated as minimum, is used in this data sheet for threshold levels only. § Not more than one output should be shorted to ground at a time, and duration of the short circuit should not exceed one second.
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POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
AM26LS32AC, AM26LS32AI, AM26LS33AC, AM26LS32AM, AM26LS33AM QUADRUPLE DIFFERENTIAL LINE RECEIVERS
SLLS115D OCTOBER 1980 REVISED MARCH 2002
switching characteristics, VCC = 5 V, TA = 25°C
PARAMETER tPLH tPHL tPZH tPZL tPHZ tPLZ Propagation delay time, low-to-high-level output Propagation delay time, high-to-low-level output Output enable time to high level Output enable time to low level Output disable time from high level Output disable time from low level TEST CONDITIONS CL = 15 pF 15 pF, CL = 15 pF 15 pF, CL = 5 pF pF, See Figure 1 Figure See Figure 1 Figure See Figure 1 Figure MIN TYP 20 22 17 20 21 30 MAX 35 35 22 25 30 40 UNIT ns ns ns
PARAMETER MEASUREMENT INFORMATION
VCC Test Point From Output Under Test CL (see Note A) RL = 2 k S1 2.5 V Input 0 tPLH Output tPHL VOH 1.3 V S1 and S2 Closed TEST CIRCUIT VOLTAGE WAVEFORMS FOR tPLH, tPHL 1.3 V VOL 0 2.5 V 5 k See Note B S2
5 ns 90% Enable G 10% See Note C 90% 1.3 V Enable G tPZH Output S1 Open S2 Closed 1.3 V tPHZ VOLTAGE WAVEFORMS FOR tPHZ, tPZH 10% 10% 1.3 V 90% 1.3 V
5 ns 3V Enable G 10% 0 3V 10%
5 ns 90% 1.3 V 90% 1.3 V
5 ns 3V
10% See Note C
0 3V
90% 1.3 V
90% Enable G 1.3 V 10% tPZL 10%
90% 1.3 V
0 0.5 V VOH Output
S1 Closed S2 Closed tPLZ 0.5 V
0 1.4 V VOL
1.3 V
1.4 V S1 Closed S2 Closed
S1 Closed S2 Open
VOLTAGE WAVEFORMS FOR tPLZ, tPZL
NOTES: A. CL includes probe and jig capacitance. B. All diodes are 1N3064 or equivalent. C. Enable G is tested with G high; G is tested with G low.
Figure 1
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· DALLAS, TEXAS 75265
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