DS26C32AMQML DS26C32AMQML Quad Differential Line Receiver Literature Number: SNOSAS3 DS26C32AMQML Quad Differential Line Receiver with 6 mA source and sink capability. This product is pin compatible with the DS26LS32A and the AM26LS32. General Description The DS26C32A is a quad differential line receiver designed to meet the RS-422, RS-423, and Federal Standards 1020 and 1030 for balanced and unbalanced digital data transmission, while retaining the low power characteristics of CMOS. The DS26C32A has an input sensitivity of 200 mV over the common mode input voltage range of ±7V. The DS26C32A features internal pull-up and pull-down resistors which prevent output oscillation on unused channels. The DS26C32A provides an enable and disable function common to all four receivers, and features TRI-STATE ® outputs Features ■ ■ ■ ■ ■ ■ CMOS design for low power ±0.2V sensitivity over input common mode voltage range Input fail-safe circuitry. Inputs won't load line when VCC = 0V Meets the requirements of EIA standard RS-422 TRI-STATE outputs for connection to system buses Ordering Information NS Part Number SMD Part Number DS26C32AME/883 5962–9164001M2A NS Package Number E20A Package Description 20LD Leadless Chip Carrier DS26C32AMJ/883 5962–9164001MEA J16A 16LD Ceramic Dip DS26C32AMW/883 5962–9164001MFA W16A 16LD Ceramic Flatpack DS26C32AMWG/883 5962–9164001MXA WG16A 16LD Ceramic SOIC Connection Diagrams Dual-In-Line Package 20-Lead Ceramic Leadless Chip Carrier 20163102 Top View See NS Package J16A, WG16A, or W16A 20163112 TRI-STATE® is a registered trademark of National Semiconductor Corporation. © 2010 National Semiconductor Corporation 201631 www.national.com DS26C32AMQML Quad Differential Line Receiver October 26, 2010 DS26C32AMQML Logic Diagram 20163101 Truth Table ENABLE ENABLE Input L H X Z VID ≥ V Th (Max) H VID ≤ V Th (Min) L Open H All Other Combinations of Enable Inputs Z = TRI-STATE www.national.com 2 Output DS26C32AMQML Absolute Maximum Ratings (Note 2, Note 1) Supply Voltage (VCC) Common Mode Range (VCM) Differential Input Voltage (VDiff) Enable Input Voltage (V I) Storage Temperature Range (T Stg) 7V ±14V ±14V 7V −65°C ≤ TA ≤ +150°C 260°C Lead Temperature (Soldering 4 sec.) Recommended Operating Conditions Min 4.50 −55 Supply Voltage (VCC) Operating Temperature Range (TA) Max 5.50 +125 Units V °C Quality Conformance Inspection Mil-Std-883, Method 5005 - Group A Subgroup Description 1 Static tests at Temp °C +25 2 Static tests at +125 3 Static tests at -55 4 Dynamic tests at +25 5 Dynamic tests at +125 6 Dynamic tests at -55 7 Functional tests at +25 8A Functional tests at +125 8B Functional tests at -55 9 Switching tests at +25 10 Switching tests at +125 11 Switching tests at -55 12 Settling time at +25 13 Settling time at +125 14 Settling time at -55 3 www.national.com DS26C32AMQML DS26C32AM Electrical Characteristics DC Parameters Symbol Parameter Conditions Notes Min Max Units Subgroups -200 +200 mV 1, 2, 3 4.5 11 KΩ 1, 2, 3 VTH Minimum Differential Input Voltage VCC = 5V, VO = VOH or VOL, -7 < VCM < +7 RI Input Resistance VCC = 5V, -7 < VCM < +7, One input AC Gnd II Input Current VCC = 5V, VI = +10V, Other Input = Gnd +1.8 mA 1, 2, 3 VCC = 5V, VI = -10V, Other Input = Gnd -2.7 mA 1, 2, 3 V 1, 2, 3 V 1, 2, 3 V 1, 2, 3 0.8 V 1, 2, 3 VOH Logical "1" Output Voltage VCC = 4.5V, VDiff = +1V, IO = -6.0mA 3.8 VOL Logical "0" Output Voltage VCC = 5.5V, VCC = Max, VDiff = -1V, IO = 6.0mA VIH Minimum Enable High Level Voltage (Note 3) VIL Maximum Enable Low Level Voltage (Note 3) IOZ Maximum TRI-STATE Output Leakage Current VO = VCC or Gnd, Enable = VIL, Enable = VIH ±5.0 µA 1, 2, 3 II Maximum Enable Input Current VI = VCC or Gnd ±1.0 µA 1, 2, 3 ICC Quiescent Power Supply Current VDiff = +1V, VCC = 5.5V 25 mA 1, 2, 3 Max Units Subgroups 0.3 2.0 AC Parameters - Propagation Delay Time The following conditions apply, unless otherwise specified. Symbol Parameter VCC = 5V ±10%, CCL = 50pF, VDiff = 2.5V Conditions Notes Min tPLH Input to Output Prop Delay VCM = 0V 35 ns 9, 10, 11 tPHL Input to Output Prop Delay VCM = 0V 35 ns 9, 10, 11 tRise Output Rise Time VCM = 0V 9 ns 9, 10, 11 tFall Output Fall Time VCM = 0V 9 ns 9, 10, 11 tPLZ Output Disable Time RL = 1000Ω 29 ns 9, 10, 11 tPZL Output Enable Time RL = 1000Ω 29 ns 9, 10, 11 tPHZ Output Disable Time RL = 1000Ω 29 ns 9, 10, 11 tPZH Output Enable Time RL = 1000Ω 29 ns 9, 10, 11 Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions. Note 2: Unless otherwise specified, all voltages are referenced to ground. Note 3: Parameter tested Go-No-Go only. www.national.com 4 DS26C32AMQML Typical Performance Characteristics Differential Propagation Delay vs Temperature Differential Propagation Delay vs Power Supply Voltage 20163113 20163114 Differential Skew vs Temperature Differential Skew vs Power Supply Voltage 20163115 20163116 Output High Voltage vs Output High Current Output High Voltage vs Output High Current 20163117 20163118 5 www.national.com DS26C32AMQML Output Low Voltage vs Output Low Current Output Low Voltage vs Output Low Current 20163119 20163120 Input Current vs Power Supply Voltage Input Resistance vs Input Voltage 20163121 20163122 Hysteresis & Differential Transition Voltage vs Temperature Hysteresis & Differential Transition Voltage vs Power Supply Voltage 20163123 www.national.com 20163124 6 DS26C32AMQML Supply Current vs Temperature Disabled Supply Current vs Power Supply Voltage 20163125 20163126 Supply Current vs Data Rate 20163127 7 www.national.com DS26C32AMQML AC Test Circuit and Switching Time Waveforms 20163106 CL includes load and test jig capacitance. S1 = VCC for tPZL, and tPLZ measurements. S1 = Gnd for tPZH, and tPHZ measurements. FIGURE 1. Test Circuit for TRI-STATE Output Tests 20163107 FIGURE 2. Propagation Delay 20163108 FIGURE 3. TRI-STATE®Output Enable and Disable Waveforms www.national.com 8 DS26C32AMQML Typical Applications Two-Wire Balanced Systems, RS-422 20163109 9 www.national.com DS26C32AMQML Revision History Section Released 10/26/2010 www.national.com Revision A Section Changes New Release, Corporate format 10 MDS data sheets converted into one Corp. data sheet format. MNDS26C32AM-X Rev 0B0 will be archived. DS26C32AMQML Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead Ceramic Leadless Chip Carrier (E) NS Package Number E20A 16-Lead Ceramic Dual-In-Line Package (J) NS Package Number J16A 11 www.national.com DS26C32AMQML 16-Lead Ceramic FlatPak (W) NS Package Number W16A 16-Lead Ceramic FlatPak (W) NS Package Number WG16A www.national.com 12 DS26C32AMQML Notes 13 www.national.com DS26C32AMQML Quad Differential Line Receiver Notes For more National Semiconductor product information and proven design tools, visit the following Web sites at: www.national.com Products Design Support Amplifiers www.national.com/amplifiers WEBENCH® Tools www.national.com/webench Audio www.national.com/audio App Notes www.national.com/appnotes Clock and Timing www.national.com/timing Reference Designs www.national.com/refdesigns Data Converters www.national.com/adc Samples www.national.com/samples Interface www.national.com/interface Eval Boards www.national.com/evalboards LVDS www.national.com/lvds Packaging www.national.com/packaging Power Management www.national.com/power Green Compliance www.national.com/quality/green Switching Regulators www.national.com/switchers Distributors www.national.com/contacts LDOs www.national.com/ldo Quality and Reliability www.national.com/quality LED Lighting www.national.com/led Feedback/Support www.national.com/feedback Voltage References www.national.com/vref Design Made Easy www.national.com/easy www.national.com/powerwise Applications & Markets www.national.com/solutions Mil/Aero www.national.com/milaero PowerWise® Solutions Serial Digital Interface (SDI) www.national.com/sdi Temperature Sensors www.national.com/tempsensors SolarMagic™ www.national.com/solarmagic PLL/VCO www.national.com/wireless www.national.com/training PowerWise® Design University THE CONTENTS OF THIS DOCUMENT ARE PROVIDED IN CONNECTION WITH NATIONAL SEMICONDUCTOR CORPORATION (“NATIONAL”) PRODUCTS. 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