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DTL3A Datasheet(PDF) 3 Page - List of Unclassifed Manufacturers |
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DTL3A Datasheet(HTML) 3 Page - List of Unclassifed Manufacturers |
3 / 5 page DTL3A Model Digital Inputs/Outputs Logic Compatibility (Pins 1, 4-7) CMOS/TTL Input Logic Levels: Logic "1" +2 Volts, minimum Logic "0" +0.8 Volts, maximum Input Logic Loading: Logic "1" (IIH @ VIH = 5 Volts) 20µA, maximum Logic "0" (IIL @ VIL = 0 Volts) –0.6mA, maximum Output Logic Levels: Logic "1" (@ 150µA) +3.5 Volts, minimum Logic "0" (@ 1.6mA) +0.4 Volts, maximum Timing See Timing Diagram Output Current: Range 0-2 Amps Resolution ➀ 0.024%FS (488µA) Accuracy ➅ ±1%, maximum Voltage Range ➁ 2.5-200 Volts Power Range 0-100 Watts Impedance 10M Ω, minimum Offset Error ➂ ±0.5mA, maximum Gain Error ±0.1%, maximum Isolation Voltage: Digital Inputs/Output to ±Load 500Vdc, minimum Any Pin to Case 500Vdc, minimum Isolation Resistance 100M Ω, minimum Dynamic Performance Output Slew Rate ±10A/µsec, minimum Output Settling Time ➃ 100µsec Digital Input Update Rate to 20kHz Power Requirements Power Supply Range (+VCC, Pin 3) +4.75-5.25 Volts (+5V nominal) Power Supply Current 110mA typ., 150mA max. Environmental Operating Temperature ➄ –40 to +100°C (Case) Storage Temperature –40 to +125°C (Ambient) Humidity (Non-condensing) to 95% Altitude Above Sea Level 10,000 feet Physical Dimensions 2" x 2" x 0.5" (51 x 51 x 12.7mm) Shielding 6-sided (Connected to pin 2) Case Material Tin-plated steel shell with aluminum baseplate Pin Material Brass, solder coated Mounting Holes Through-hole spacers, #4-40 clearance Weight 1.9 ounces (54 grams) ➀ The smallest increment/decrement in output current is defined by one LSB (least significant bit) of the 12-bit digital input word. One LSB is equal to full scale (FS) divided by 4096 which corresponds to 0.0244% of 2A or 488µA. ➁ For proper operation, the unit's output/load voltage must remain within this range. Voltages greater than the listed maximum can damage the device. Voltages less than the minimum provide insufficient bias for the output stage and will result in unpredictable or no operation. See Output Compliance Voltage and the Fault Line for details. ➂ Offset error is defined as the current sunk/sourced by the DTL3A’s output, under any output voltage conditions, when the digital input word is all "0's." ➃ Full scale step (2 Amps) settling to within ±0.5mA of its final value. ➄ See Temperature Derating. ➅ Applies over all specified ranges/combinations of load voltage/current, operating temperature, and VCC. Power Supply Voltage (+VCC, Pin 3) –0.5 to +5.5 Volts Digital Input Voltage (Pins 4-7) –0.5 to +5.5 Volts Output Reverse-Polarity Protection No protection Output Overvoltage Protection No protection Output Undervoltage Protection Yes (See Fault Line) Case Temperature +105°C Storage Temperature (Ambient) –40 to +125°C Lead Temperature (Soldering, 10 sec.) +300°C Absolute Maximum Ratings These are stress ratings. Exposure of devices to any of these conditions may adversely affect long-term reliability. Proper operation under conditions other than those listed in the Performance/Functional Specifications Table is not implied. Overview The DTL3A is a digitally programmable, CMOS/TTL-compatible, serial-input current sink. It’s output/load current range is 0 to 2 Amps (in 488µA increments), over a compliance voltage range of 2.5 to 200 Volts and an output/ load power range of 0 to 100 Watts. The device’s digital I/O coding is straight binary (see table below). A digital input of all "0’s" forces a load current of 0 Amps. A digital input of all "1’s" forces a load current of 1.9995 Amps. In a typical power-supply test or burn-in application, the output pins of the device under test (DUT) are connected to the DTL3A’s +Load (pins 10 and 11) and –Load (pins 8 and 9) outputs. The DTL3A’s operation is controlled by its four digital input lines (Serial Data In, Clock, Latch Data and Control Strobe). TECHNICAL NO TES MSB LSB DTL3A 1111 1111 1111 1.9995 1100 0000 0000 1.5000 1000 0000 0000 1.0000 0111 1111 1111 0.9995 0100 0000 0000 0.5000 0010 0000 0000 0.2500 0000 0000 0001 0.0005 0000 0000 0000 0.0000 Serial Input Data Word Load Current (Amps) Mapping of the Serial-Input Data to Load Current 3 100 W A TT , HIGH-V O L T A GE ELECTR ONIC LO ADS Performance/Functional Specifications Typical @ TA = +25°C with nominal +5V supply voltage, unless noted. |
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