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TL712 DIFFERENTIAL COMPARATOR D Operates From a Single 5-V Supply D 0 to 5.5 V Common-Mode Input Voltage Range D Self-Biased Inputs D Complementary 3-State Outputs D Enable Capability D Hysteresis . . . 5 mV Typ D Response Times . . . 25 ns Typ SLCS002C – JUNE 1983 – REVISED AUGUST 2000 D, P, OR PS PACKAGE (TOP VIEW) NC 1 IN– 2 IN+ 3 OE 4 8 VCC 7 OUT– 6 OUT+ 5 GND NC – No internal connection description The TL712 is a high-speed comparator fabricated with bipolar Schottky process technology. The circuit has differential analog inputs and complementary 3-state TTL-compatible logic outputs with symmetrical switching characteristics. When the output enable (OE) is low, both outputs are in the high-impedance state. This device operates from a single 5-V supply and is useful as a disk memory read-chain data comparator. The TL712C is characterized for operation from 0°C to 70°C. AVAILABLE OPTIONS PACKAGED DEVICES TA PLASTIC SMALL OUTLINE (D) PLASTIC SMALL-OUTLINE EIAJ (PS) PLASTIC DIP (P) 0°C to 70°C TL712CD TL712CPSR TL712CP The PS package is only availiable tape and reeled. The D package also is available taped and reeled. Add the suffix R to device type (e.g., TL712CDR). symbol (positive logic) 4 OE 2 IN– 3 IN+ 7 OUT– 6 OUT+ 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. • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 Copyright © 2000, Texas Instruments Incorporated 1 TL712 DIFFERENTIAL COMPARATOR SLCS002C – JUNE 1983 – REVISED AUGUST 2000 schematics of inputs and outputs EQUIVALENT OF EACH DIFFERENTIAL INPUT VCC Input 4 kΩ Nom 960 Ω Nom 960 Ω Nom EQUIVALENT OF EACH ENABLE INPUT VCC 8.3 kΩ Nom OE TYPICAL OF ALL OUTPUTS VCC 85 Ω Nom Output absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Differential input voltage, VID (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 25 V Input voltage, VI, any differential input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 25 V Output enable voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V Low-level output current, IOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Package thermal impedance, θJA (see Note 3): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97°C/W P package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85°C/W PS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95°C/W Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°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 in the “recommended operating conditions” section of this specification 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. 2. Differential voltage values are at IN+ with respect to IN –. 3. The package thermal impedance is calculated in accordance with JESD 51. 2 • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 TL712 DIFFERENTIAL COMPARATOR recommended operating conditions Supply voltage, VCC Common-mode input voltage, VIC High-level output current, IOH Low-level output current, IOL Operating free-air temperature, TA SLCS002C – JUNE 1983 – REVISED AUGUST 2000 MIN NOM MAX UNIT 4.75 5 5.25 V 0 5.5 V – 1 mA 16 mA 0 70 °C electrical characteristics at VCC = 5 V, TA = 25°C PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VT Threshold voltage (VT + and VT –) VICR = 0 to 5 V – 100† 100 mV Vhys Hysteresis (VT + – VT –) 5 mV VOH High-level output voltage VID = 100 mV, IOH = – 1 mA 2.7 3.5 V VOL Low-level output voltage VID = – 100 mV, IOL = 16 mA 0.4 0.5 V IOZ Off-state output current VO = 2.4 V – 20 µA II Enable current VI = 5.5 V 100 µA IIH High-level enable current VIH = 2.7 V 20 µA IIL Low-level enable current VIL = 0.4 V – 360 µA ri Differential input resistance 4 kΩ ro Output resistance 100 W IOS Short-circuit output current – 15 – 85 mA ICC Supply current VID = 0, No load 17 20 mA † The algebraic convention, where the more negative limit is designated as minimum, is used in this data sheet for input threshold voltage levels only. switching characteristics, VCC = 5 V, TA = 25°C PARAMETER TEST CONDITIONS MIN TYP MAX UNIT tPLH Propagation delay time, low-to-high-level output tPHL Propagation delay time, high-to-low-level output TTL load, See Figure 1, See Note 4 25 ns 25 ns NOTE 4: The response time specified is for a 100-mV input step with 5-mV overdrive (105 mV total), and is the interval between the input step function and the instant when the output crosses 2.5 V. • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 3 TL712 DIFFERENTIAL COMPARATOR SLCS002C – JUNE 1983 – REVISED AUGUST 2000 PARAMETER MEASUREMENT INFORMATION 5V Output 2 kΩ NOTE A: All diodes are 1N4148 or equivalent. Figure 1. TTL Output Load Circuit Differential Input Voltage VO – Output Voltage – V TYPICAL CHARACTERISTICS OUTPUT RESPONSE FOR VARIOUS INPUT OVERDRIVE VOLTAGES VCC = 5 V TTL Load TA = 25°C 100 mV + Overdrive OUTPUT RESPONSE FOR VARIOUS INPUT OVERDRIVE VOLTAGES VCC = 5 V TTL Load TA = 25°C 100 mV + Overdrive Differential Input Voltage VO – Output Voltage – V 5 100 mV 4 50 mV 3 20 mV 2 5 mV 1 0 0 5 10 15 20 25 30 35 40 t – Time – ns Figure 2 5 4 100 mV 3 50 mV 20 mV 2 5 mV 1 0 0 5 10 15 20 25 30 35 40 t – Time – ns Figure 3 4 • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 VIC – Common-Mode Input Voltage TL712 DIFFERENTIAL COMPARATOR SLCS002C – JUNE 1983 – REVISED AUGUST 2000 TYPICAL CHARACTERISTICS COMMON-MODE PULSE RESPONSE 4 3 VCC = 5 V TA = 25°C 2 1 0 50 Ω VO 1.7 VIC 1.65 50 Ω 1.6 1.55 1.5 0 20 40 60 80 100 120 140 160 t – Time – ns Figure 4 VO – Output Voltage – V • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 5 IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those pertaining to warranty, patent infringement, and limitation of liability. TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements. Customers are responsible for their applications using TI components. In order to minimize risks associated with the customer’s applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right of TI covering or relating to any combination, machine, or process in which such semiconductor products or services might be or are used. TI’s publication of information regarding any third party’s products or services does not constitute TI’s approval, warranty or endorsement thereof. Copyright © 2000, Texas Instruments Incorporated

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