Revised November 1999 100316 Low Power Quad Differential Line Driver with Cut-Off General Description Features The 100316 is a quad differential line driver with output cutoff capability. The outputs are designed to drive a doubly terminated 50Ω transmission line (25Ω equivalent impedance) in an ECL backplane. The 100316 is ideal for driving low noise, differential ECL backplanes. A LOW on the output enable (OE) will set both the true and complementary outputs into a high impedance or cut-off state, isolating them from the backplane. The cut-off state is designed to be more negative than a normal ECL LOW state. ■ Differential inputs and outputs ■ Output cut-off capability ■ Drives 25Ω load ■ VBB available for single-ended operation ■ 2000V ESD protection ■ Voltage compensated operating range = −4.2V to −5.7V ■ Available to industrial grade temperature range Unlike most 100K devices, the data inputs (Dn, Dn) do not have input pull-down resistors. An internal reference supply (VBB) is available for single-ended operation. Ordering Code: Order Number Package Number Package Description 100316QC V28A 28-Lead Plastic Lead Chip Carrier (PLCC), JEDEC MO-047, 0.450 Square 100316QI V28A 28-Lead Plastic Lead Chip Carrier (PLCC), JEDEC MO-047, 0.450 Square Industrial Temperature Range (−40°C to +85°C) Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Logic Symbol Connection Diagram 28-Pin PLCC Pin Descriptions Pin Names Description Dn Data Inputs Qn Data Outputs Qn Complementary Data Outputs OE Output Enable © 1999 Fairchild Semiconductor Corporation DS010922 www.fairchildsemi.com 100316 Low Power Quad Differential Line Driver with Cut-Off May 1991 100316 Truth Table Logic Diagram Inputs Outputs Dn Dn OE Qn Qn L H H L H H L H H L X X L Cut-Off Cut-Off H = HIGH Voltage Level L = LOW Voltage Level X = Don’t Care Cut-Off = Lower-than-LOW State www.fairchildsemi.com 2 Storage Temperature (TSTG) Recommended Operating Conditions −65°C to +150°C Case Temperature (TC) Maximum Junction Temperature (TJ)+150°C Pin Potential to Ground Pin (VEE) −5.7V to −4.2V Supply Voltage (VEE) Note 1: The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum rating. The “Recommended Operating Conditions” table will define the conditions for actual device operation. ≥2000V ESD (Note 2) −40°C to +85°C Industrial −100 mA Output Current (DC Output HIGH) 0°C to +85°C Commercial −7.0V to 0.5V VEE to +0.5V Input Voltage (DC) 100316 Absolute Maximum Ratings(Note 1) Note 2: ESD testing conforms to MIL-STD-883, Method 3015. Commercial Version DC Electrical Characteristics (Note 3) VEE = −4.2V to −5.7V, VCC = VCCA = GND, TC = 0°C to +85°C Min Typ Max Units VOH Symbol Output HIGH Voltage Parameter −1025 −955 −870 mV VIN = VIH (Max) Conditions Loading with VOL Output LOW Voltage −1830 −1705 −1620 mV or VIL (Min) 25Ω to −2.0V VOHC Output HIGH Voltage −1035 mV VIN = VIH (Min) Loading with VOLC Output LOW Voltage −1610 mV or VIL (Max) 25Ω to −2.0V VOLZ Cut-Off LOW Voltage −1950 mV VIN = VIH (Min) OE = LOW or VIL (Max) −1380 −1320 −1260 mV IVBB = −1 mA mV Required for Full Output Swing VBB Output Reference Voltage VDIFF Input Voltage Differential 150 VCM Common Mode Voltage VCC − 2.0 VCC − 0.5 V VIH Single-Ended −1110 −870 mV Input HIGH Voltage Guaranteed HIGH Signal for All Inputs (with one input tied to V BB) VBB (Max) + VDIFF VIL Single-Ended Guaranteed LOW Signal for All Input LOW Voltage −1830 IIL Input LOW Current 0.50 IIH Input HIGH Current DN IIHZ Input HIGH Current OE ICBO Input Leakage Current −10 IEE Power Supply Current, Normal −85 IEEZ Power Supply Current, Cut-Off −152 −1530 mV Inputs (with one input tied to V BB) VBB (Min) − VDIFF µA VIN = VIL (Min) 250 µA VIN = VIH (Max), D1 = V BB, D1 = VIL (Min) 360 µA VIN = VIH (Max), D1 = V BB, D1 = VIL (Min) µA VIN = VEE, D1 = VBB, D1 = VIL (Min) −30 mA D1 = VBB, D1 = VIL (Min) −75 mA D1–D4 = VBB, D1–D4 = VIL (Min), OE = LOW Note 3: The specified limits represent the “worst case” value for the parameter. Since these values normally occur at the temperature extremes, additional noise immunity and guardbanding can be achieved by decreasing the allowable system operating ranges. Conditions for testing shown in the tables are chosen to guarantee operation under “worst case” conditions. AC Electrical Characteristics VEE = −4.2V to −5.7V, VCC = VCCA = GND Symbol Parameter tPLH Propagation Delay tPHL Data to Output TC = 0°C TC = +25°C TC = +85°C Min Max Min Max Min Max 0.65 2.10 0.65 2.10 0.65 2.10 tPZH Propagation Delay 1.8 4.00 1.8 4.00 1.8 4.00 tPHZ OE to Output 1.2 2.90 1.2 2.90 1.2 2.90 tTLH Transition Time, Dn to Qn tTHL 20% to 80%, 80% to 20% 0.45 1.50 0.45 1.50 0.45 1.50 3 Units Conditions ns ns Figures 1, 2 ns www.fairchildsemi.com 100316 Industrial Version DC Electrical Characteristics (Note 4) VEE = −4.2V to −5.7V, VCC = VCCA = GND Symbol Parameter TC = −40°C Min TC = 0°C to +85°C Max Min Max Units Conditions VOH Output HIGH Voltage −1085 −870 −1025 −870 mV VIN = VIH (Max) Loading with VOL Output LOW Voltage −1830 −1585 −1830 −1620 mV or VIL (Min) 25Ω to −2.0V VOHC Output HIGH Voltage −1095 mV VIN = VIH (Min) Loading with VOLC Output LOW Voltage −1575 −1610 mV or VIL (Max) 25Ω to −2.0V VOLZ Cut-Off LOW Voltage −1900 −1950 mV OE = LOW, VIN = VIH (Min) VBB Output Reference Voltage −1260 mV IVBB = −1 mA VDIFF Input Voltage Differential 150 mV Required for Full Output Swing VCM Common Mode Voltage VIH Single-Ended −1035 or VIL (Max) Input HIGH Voltage −1395 −1255 −1380 VCC − 2.0 VCC − 0.5 VCC − 2.0 VCC − 0.5 V −1115 −870 −1110 −870 mV 150 Guaranteed HIGH Signal for All Inputs (with one input tied to VBB) VBB (Max) + VDIFF VIL Single-Ended Guaranteed LOW Signal for All Input LOW Voltage −1830 −1535 −1830 −1530 IIL Input LOW Current 0.50 IIH Input HIGH Current, DN 240 240 IIHZ Input HIGH Current, OE 360 360 ICBO Input Leakage Current −10 IEE Power Supply Current, −85 −30 −85 −30 mA D1 = VBB, D1 = VIL (Min) −152 −75 −152 −75 mA D1–D4 = VBB, D1–D4 = VIL (Min), mV Inputs (with one input tied to VBB) VBB (Min) − VDIFF µA 0.50 −10 µA µA VIN = VIL (Min) VIN = VIH (Max), D1 = VBB, D1 = VIL (Min) VIN = VEE, D1 = VBB, D1 = VIL (Min) Normal IEEZ Power Supply Current, OE = LOW Cut-Off Note 4: The specified limits represent the “worst case” value for the parameter. Since these values normally occur at the temperature extremes, additional noise immunity and guardbanding can be achieved by decreasing the allowable system operating ranges. Conditions for testing shown in the tables are chosen to guarantee operation under “worst case” conditions. AC Electrical Characteristics VEE = −4.2V to −5.7V, VCC = VCCA = GND Symbol Parameter tPLH Propagation Delay tPHL Data to Output tPZH Propagation Delay TC = −40°C TC = +25°C TC = +85°C Min Max Min Max Min Max 0.65 2.10 0.65 2.10 0.65 2.10 1.80 4.00 1.80 4.00 1.80 4.00 Units ns ns tPHZ OE to Output tTLH Transition Time tTHL 20% to 80%, 80% to 20% www.fairchildsemi.com 1.20 2.90 1.20 2.90 1.20 2.90 0.45 1.50 0.45 1.50 0.45 1.50 4 Conditions ns Figures 1Figure 2 100316 Test Circuitry Notes: VCC, VCCA = +2V, VEE = −2.5V L1 and L2 = equal length 50Ω impedance lines RT = 50Ω terminator internal to scope Decoupling 0.1 µF from GND to VCC and VEE All unused outputs are loaded with 25Ω to GND CL = Fixture and stray capacitance ≤ 3 pF FIGURE 1. AC Test Circuit Switching Waveforms FIGURE 2. Propagation Delay, Cut-Off and Transition Times 5 www.fairchildsemi.com 100316 Low Power Quad Differential Line Driver with Cut-Off Physical Dimensions inches (millimeters) unless otherwise noted 28-Lead Plastic Lead Chip Carrier (PLCC), JEDEC MO-047, 0.450 Square Package Number V28A Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. www.fairchildsemi.com www.fairchildsemi.com 6