LM234DT STMicroelectronics, LM234DT Datasheet
LM234DT
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LM234DT Summary of contents
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Features ■ Operates from 1V to 40V ■ 0.02%/V current regulation ■ Programmable from 1µA to 10mA ■ ±3% initial accuracy Description The LM134/LM234/LM334 are 3-terminal adjustable current sources characterized by: ■ an operating current range of 10000: 1 ■ ...
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Schematic diagram 1 Schematic diagram Figure 1. Schematic diagram 2 Absolute maximum ratings Table 1. Absolute maximum ratings Symbol Voltage Forward Reverse - V ADJ pin to V ADJ I Set current set P Power dissipation tot ...
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LM134-LM234-LM334 3 Electrical characteristics T = +25°C with pulse testing so that junction temperature does not change during testing j (unless otherwise specified) Table 2. Electrical characteristics Parameter + (1) Set current error (V = +2.5V) - 10µA ≤ I ...
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Electrical characteristics Figure 2. Output impedance Frequency (Hz) Figure 4. Startup Time (scale changes at each current level) Figure 6. Voltage across R Temperature (°C) 4/16 Figure 3. Figure 5. Time (scale changes at each current level) Figure 7. set ...
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LM134-LM234-LM334 Figure 8. Turn-on voltage + - voltage (V) Electrical characteristics Figure 9. Ratio set I (mA) set - current 5/16 ...
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Application information 4 Application information 4.1 Slew rate At slew rates above a threshold (see have a non-linear current characteristic. The slew rate at which this takes place is directly proportional to I set Slew rates of more than 1V/µs ...
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LM134-LM234-LM334 4.6 Sensing temperature The LM134, LM234, LM334 are excellent remote controlled temperature sensors because their operation as current sources preserves their accuracy even in the case of long connecting wires. The output current is directly proportional to the absolute ...
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Application information Typical applications Figure 11. Basic 2-terminal current source Figure 13. Terminating remote sensor for voltage output 8/16 LM134-LM234-LM334 Figure 12. Alternate trimming technique Figure 14. Zero temperature coefficient current source ...
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LM134-LM234-LM334 Figure 15. Low output impedance thermometer Figure 17. Micropower bias Application information Figure 16. Low output impedance thermometer Figure 18. Low input voltage reference driver 9/16 ...
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Application information Figure 19. In-line current limiter 10/16 LM134-LM234-LM334 Figure 20. Fet cascading for low capacitance ...
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... JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an STMicroelectronics trademark. ECOPACK specifications are available at: www.st.com. Package information ...
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Package information 5.1 SO-8 package mechanical data Ref ccc 12/16 Dimensions Millimeters Min. Typ. Max. 1.75 0.10 0.25 1.25 0.28 0.48 0.17 0.23 4.80 4.90 5.00 5.80 6.00 ...
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LM134-LM234-LM334 5.2 TO-92 ammopack and tape & reel package mechanical data Dim F1/F2 Δh Δ Millimeters ...
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Package information 5.3 TO-92 bulk package mechanical data Dim 14/16 Millimeters Min. Typ. Max. 1.27 3.2 3.7 4.2 4.45 5.00 5.2 4.58 5.03 5.33 12.7 0.407 0.5 0.508 0.35 LM134-LM234-LM334 Inches Min. Typ. ...
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LM134-LM234-LM334 6 Ordering information Table 3. Order codes Part number LM134D/DT LM134Z/ZT/AP LM234D/DT LM234Z/ZT/AP LM334D/DT LM334Z/ZT/AP LM334AD/ADT LM334AZ/AZT/AAP 7 Revision history Date 2-May-2003 28-Oct-2005 29-May-2007 Temperature Package range -55°C to +125°C SO-8 -55°C to +125°C TO-92 -25°C to +100°C SO-8 ...
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... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...