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DTL3A Datasheet(PDF) 3 Page - List of Unclassifed Manufacturers

Part # DTL3A
Description  DIGITALLY PROGRAMMABLE, 2A/200V 100WATT, ELECTRONIC LOADS
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DTL3A Datasheet(HTML) 3 Page - List of Unclassifed Manufacturers

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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
0.024%FS (488µA)
Accuracy
±1%, maximum
Voltage Range
2.5-200 Volts
Power Range
0-100 Watts
Impedance
10M
Ω, minimum
Offset Error
±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
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
–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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