XTR103 Burr-Brown Corporation, XTR103 Datasheet
XTR103
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XTR103 Summary of contents
Page 1
... The XTR103 operates on loop power supply voltages down to 9V. The XTR103 is available in 16-pin plastic DIP and SOL-16 surface-mount packages specified for the – +85 C temperature range. International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111 Internet: http://www.burr-brown.com/ • ...
Page 2
... Operating JA Specification same as XTR103BP. NOTES: (1) Includes corrected Pt100 nonlinearity for process measurement spans greater than 100 C, and over-temperature zero and span effects. Does not include initial offset and gain errors which are normally trimmed to zero (2) Describes accuracy of the 4mA low-scale offset current. Does not include input amplifier effects ...
Page 3
... TEMPERATURE specifications. (1) RANGE – +85 C – +85 C – +85 C – + pin) .......................................... 40V O + – (referenced to I pin) ........................ XTR103 ® ...
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... Frequency (Hz) LOOP RESISTANCE vs LOOP POWER SUPPLY 1750 1500 (V+) – 9V 1250 R max = L 20mA 1000 750 Operating Region 500 250 Loop Power Supply Voltage, V ® XTR103 20mA 4mA 100k 1M 140 G = 0.16A/V 120 (R = 400 ) G 100 10k 100k 0.1 60 1550 50 ...
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... 24VDC, unless otherwise noted. A OUTPUT CURRENT NOISE DENSITY vs FREQUENCY 0.1 0 100 Frequency (Hz) 1k 100 10 (CONT 0.1 1k 10k 100k 0.1 INPUT VOLTAGE NOISE DENSITY vs FREQUENCY 0 100 1k Frequency (Hz) 5 INPUT CURRENT NOISE DENSITY vs FREQUENCY 1 10 100 1k 10k Frequency (Hz) 10k 100k XTR103 100k ® ...
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... APPLICATION INFORMATION Figure 1 shows the basic connection diagram for the XTR103. The loop power supply, V provides power for all circuitry. PS Output loop current is measured as a voltage across the series load resistor Two matched 0.8mA current sources drive the RTD and zero-setting resistor, R ...
Page 7
... See text for discussion of performance. FIGURE 2. Operation Without External Transistor. LOOP POWER SUPPLY The voltage applied to the XTR103, V+, is measured with respect to the I connection, pin 7. V+ can range from 40V. The loop supply voltage will differ from the ...
Page 8
... Long lines are subject to voltage surges which can damage semiconductor components. To avoid damage, the maxi- mum applied voltage rating for the XTR103 is 40V. A zener diode may be used for D applied to the XTR103 to a safe level. The loop power supply voltage must be lower than the voltage rating of the zener diode. 13 ...
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... L RADIO FREQUENCY INTERFERENCE The long wire lengths of current loops invite radio frequency interference. RF can be rectified by the sensitive input circuitry of the XTR103 causing errors. This generally appears as an unstable output current that varies with the position of loop supply or input wiring. V+ XTR103 FIGURE 5 ...
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... G R XTR103 G 0.01µ – 0.01µF R LIN 13 12 1N4148 0.01µF XTR103 – LIN 4-20mA O 1100 1.5k 0.01µF 1N4148 0.01µ ...