adr391 Analog Devices, Inc., adr391 Datasheet
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adr391 Summary of contents
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... Data acquisition systems Industrial process controls Automotive GENERAL DESCRIPTION The ADR390, ADR391, ADR392, and ADR395 are precision 2.048 V, 2.5 V, 4.096 V, and 5 V band gap voltage references, respectively, featuring low power and high precision in a tiny footprint. Using ADI’s patented temperature drift curvature correction techniques, the ADR39x references achieve a low 9 ppm/° ...
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... Updated Format................................................................ Universal Changes to Title ............................................................................... 1 Changes to Features......................................................................... 1 Changes to Applications ................................................................. 1 Changes to General Description ................................................... 1 Changes to Table 1........................................................................... 1 Changes to ADR390—Specifications............................................ 3 Changes to ADR391—Specifications............................................ 4 Changes to ADR392—Specifications............................................ 5 Changes to ADR395—Specifications............................................ 6 Changes to Absolute Maximum Ratings ...................................... 7 Changes to Thermal Resistance..................................................... 7 Moved ESD Caution........................................................................ 7 Changes to Figure 3, Figure 4, Figure 7, and Figure 8 ................ 9 Changes to Figure 11, Figure 12, Figure 13, and Figure 14 ...
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... T LOAD No load −40°C < T < +125° 1000 hours kHz Rev Page ADR390/ADR391/ADR392/ADR395 Min Typ 2.042 2.048 2.044 2.048 300 < +125°C 10 < +85° < +125° ...
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... ADR390/ADR391/ADR392/ADR395 ADR391 SPECIFICATIONS Electrical characteristics 2 Table 3. Parameter Symbol OUTPUT VOLTAGE INITIAL ACCURACY V OERR V OERR V OERR V OERR TEMPERATURE COEFFICIENT TCV SUPPLY VOLTAGE HEADROOM V IN LINE REGULATION ∆V LOAD REGULATION ∆V QUIESCENT CURRENT I IN VOLTAGE NOISE en p-p TURN-ON SETTLING TIME ...
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... T LOAD LOAD No load −40°C < T < +125° 1000 hours kHz Rev Page ADR390/ADR391/ADR392/ADR395 Min Typ 4.090 4.096 4.091 4.096 300 < +125°C 10 < +125° 100 80 ...
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... ADR390/ADR391/ADR392/ADR395 ADR395 SPECIFICATIONS Electrical characteristics 5 Table 5. Parameter Symbol OUTPUT VOLTAGE INITIAL ACCURACY V OERR V OERR V OERR V OERR TEMPERATURE COEFFICIENT TCV SUPPLY VOLTAGE HEADROOM V IN LINE REGULATION ∆V LOAD REGULATION ∆V QUIESCENT CURRENT I IN VOLTAGE NOISE en TURN-ON SETTLING TIME ...
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... Rating mount packages See derating Table 7. Thermal Resistance curves Package Type –65°C to +125°C TSOT-23-5 (UJ-5) –40°C to +125°C –65°C to +125°C 300°C Rev Page ADR390/ADR391/ADR392/ADR395 θ θ 230 146 is JA Unit °C/W ...
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... O to –40°C to +125°C and back to +25°C 150 100 50 0 –50 –100 –150 0 100 200 300 400 500 600 700 TIME (Hours) Figure 2. ADR391 Typical Long-Term Drift over 1,000 Hours 800 900 1000 ...
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... Figure 6. ADR395 Output Voltage vs. Temperature 140 +125 ° C 120 +85 ° C +25 ° C 100 –40 ° 2.5 5.0 7.5 10.0 INPUT VOLTAGE (V) Figure 7. ADR390 Supply Current vs. Input Voltage 140 120 +85 ° C 100 +25 ° C –40 ° 2.5 5.0 7.5 10.0 INPUT VOLTAGE (V) Figure 8. ADR391 Supply Current vs. Input Voltage 100 125 12.5 15.0 12.5 15.0 ...
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... Rev Page 0mA TO 5mA 5. 3.0V IN – TEMPERATURE ( °C) Figure 12. ADR391 Load Regulation vs. Temperature I = 0mA TO 5mA 7.5V IN –40 – 100 TEMPERATURE ( °C) Figure 13. ADR392 Load Regulation vs. Temperature I = 0mA TO 5mA 7.5V IN – 100 TEMPERATURE (° ...
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... Figure 19. ADR390 Minimum Input Voltage vs. Load Current 3.6 3.4 3.2 3.0 2.8 2.6 0 100 125 Figure 20. ADR391 Minimum Input Voltage vs. Load Current Rev Page ADR390/ADR391/ADR392/ADR395 V = 5.3V TO 15V IN – 100 TEMPERATURE ( ° C) +125° C –40° C +25° C +85° LOAD CURRENT (mA) +125 ° ...
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... V DEVIATION (mV) OUT Figure 24. ADR391 V Hysteresis Distribution OUT ADR391 ADR390 100 10 100 1k FREQUENCY (Hz) Figure 25. Voltage Noise Density vs. Frequency TIME (1 Sec/DIV) Figure 26. ADR391 Typical Voltage Noise 0 +25°C 0.19 0.34 10k ...
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... TIME (10µs/DIV) Figure 27. ADR391 Voltage Noise kHz C BYPASS LINE 0.5V/DIV INTERRUPTION V 1V/DIV OUT TIME (10µs/DIV) Figure 28. ADR391 Line Transient Response C BYPASS 0.5V/DIV LINE INTERRUPTION V OUT 1V/DIV Figure 29. ADR391 Line Transient Response ADR390/ADR391/ADR392/ADR395 V OUT V LOAD Figure 30. ADR391 Load Transient Response = 0µ ...
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... ADR390/ADR391/ADR392/ADR395 V = 15V IN 5V/DIV V IN 2V/DIV V OUT TIME (20 µ s/DIV) Figure 33. ADR391 Turn-On Response Time 15V IN V 5V/DIV IN V 2V/DIV OUT TIME (40 µ s/DIV) Figure 34. ADR391 Turn-Off Response 0.1 µ BYPASS 2V/DIV V OUT 5V/DIV V IN TIME (200 µ s/DIV) Figure 35. ADR391 Turn-On/Turn-Off Response 500 Ω ...
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... C = 1µ 100 1k 10k FREQUENCY (Hz) Figure 39. Output Impedance vs. Frequency C = 0µ 0.1µF L 100k 1M Rev Page ADR390/ADR391/ADR392/ADR395 ...
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... DEVICE POWER DISSIPATION CONSIDERATIONS The ADR390/ADR391/ADR392/ADR395 are capable of deli- vering load currents to 5 mA, with an input voltage that ranges from 2.8 V (ADR391 only When these devices are used in applications with large input voltages, care should be taken to avoid exceeding the specified maximum power ...
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... U2. U1 and U2 are simply chosen for the two voltages that supply the required outputs (see the Output Table in Figure 42). For example, if both U1 and U2 are ADR391s, V While this concept is simple, a precaution is required. Since the lower reference circuit must sink a small bias current from U2 ...
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... General-Purpose Current Source Many times in low power applications, the need arises for a precision current source that can operate on low supply vol- tages. ADR390/ADR391/ADR392/ADR395 can be configured as a precision current source. As shown in Figure 45, the circuit configuration is a floating current source with a grounded load. ...
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... TSOT 0.15 25 TSOT 0.12 9 TSOT 0.12 9 TSOT 0.12 25 TSOT 0.12 25 TSOT 0.10 9 TSOT 0.10 9 TSOT Rev Page ADR390/ADR391/ADR392/ADR395 8° 4° 0.60 0.45 0.30 Number Package of Parts Temperature Option Branding per Reel Range UJ-5 R0A 3,000 –40°C to +125°C UJ-5 R0A 250 –40°C to +125°C UJ-5 R0B 3,000 –40°C to +125°C ...
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... ADR390/ADR391/ADR392/ADR395 NOTES © 2005 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. C00419–0–5/05(F) Rev Page ...