REF194GP Analog Devices Inc, REF194GP Datasheet
REF194GP
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REF194GP Summary of contents
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... Smart sensors Solar-powered applications Loop current-powered instruments GENERAL DESCRIPTION The REF19x series precision band gap voltage references use a patented temperature drift curvature correction circuit and laser trimming of highly stable, thin-film resistors to achieve a very low temperature coefficient and high initial accuracy. The REF19x series is made up of micropower, low dropout ...
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... Device Power Dissipation Considerations.............................. 19 A ≤ +85°C.. 7 Output Voltage Bypassing ......................................................... 19 A ≤ −40°C ≤ +125°C 8 Sleep Mode Operation............................................................... 25°C..................... 8 Basic Voltage Reference Connections ..................................... 19 a ≤ +85°C.. 9 Membrane Switch-Controlled Power Supply ......................... 19 A ≤ +125°C 9 Current-Boosted References with Current Limiting............. 25°C .................. 10 Negative Precision Reference without Precision Resistors ...
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SPECIFICATIONS ELECTRICAL CHARACTERISTICS—REF191 @ 3 25°C, unless otherwise noted Table 2. Parameter Mnemonic 1 INITIAL ACCURACY E Grade Grade G Grade 2 LINE REGULATION E Grade ΔV /ΔV ...
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REF19x Series ELECTRICAL CHARACTERISTICS—REF191 @ −40°C ≤ 3.3 V, −40°C ≤ T ≤ +85°C, unless otherwise noted Table 3. Parameter 1, 2 TEMPERATURE COEFFICIENT E Grade F Grade 3 G Grade 4 LINE REGULATION ...
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ELECTRICAL CHARACTERISTICS—REF191 @ −40°C ≤ 3.3 V, −40°C ≤ T ≤ +125°C, unless otherwise noted Table 4. Parameter 1, 2 TEMPERATURE COEFFICIENT E Grade F Grade 3 G Grade 4 LINE REGULATION E Grade ...
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REF19x Series ELECTRICAL CHARACTERISTICS—REF192 @ −40°C ≤ 3.3 V, −40°C ≤ T ≤ +85°C, unless otherwise noted Table 6. Parameter 1, 2 TEMPERATURE COEFFICIENT E Grade F Grade 3 G Grade 4 LINE REGULATION ...
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ELECTRICAL CHARACTERISTICS—REF193 @ 3 25°C, unless otherwise noted Table 8. Parameter Mnemonic 1 INITIAL ACCURACY G Grade V 2 LINE REGULATION G Grade ΔV 2 LOAD REGULATION G Grade ΔV DROPOUT ...
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REF19x Series ELECTRICAL CHARACTERISTICS—REF193 @ 3.3 V, –40°C ≤ T ≤ +125°C, unless otherwise noted Table 10. Parameter 1 ,2 TEMPERATURE COEFFICIENT 3 G Grade 4 LINE REGULATION G Grade LOAD REGULATION 4 G ...
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ELECTRICAL CHARACTERISTICS—REF194 @ −40°C ≤ 5.0 V, −40°C ≤ T ≤ +85°C, unless otherwise noted Table 12. Parameter 1, 2 TEMPERATURE COEFFICIENT E Grade F Grade G Grade 3 4 LINE REGULATION E Grade ...
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REF19x Series ELECTRICAL CHARACTERISTICS—REF195 @ 5. 25°C, unless otherwise noted Table 14. Parameter 1 INITIAL ACCURACY E Grade F Grade G Grade 2 LINE REGULATION E Grade F and G Grades ...
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ELECTRICAL CHARACTERISTICS—REF195 @ −40°C ≤ 5.20 V, −40°C ≤ T ≤ +125°C, unless otherwise noted Table 16. Parameter 1, 2 TEMPERATURE COEFFICIENT E Grade F Grade 3 G Grade 4 LINE REGULATION E Grade ...
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REF19x Series ELECTRICAL CHARACTERISTICS—REF196 @ −40°C ≤ 3.5 V, –40°C ≤ T ≤ +85°C, unless otherwise noted Table 18. Parameter 1, 2 TEMPERATURE COEFFICIENT 3 G Grade 4 LINE REGULATION G Grade LOAD REGULATION ...
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ELECTRICAL CHARACTERISTICS—REF198 @ 5 25°C, unless otherwise noted Table 20. Parameter Mnemonic INITIAL ACCURACY 1 E Grade Grade G Grade LINE REGULATION 2 E Grade ΔV /ΔV O ...
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REF19x Series ELECTRICAL CHARACTERISTICS—REF198 @ −40°C ≤ 5.0 V, −40°C ≤ T ≤ +125°C, unless otherwise noted Table 22. Parameter 1, 2 TEMPERATURE COEFFICIENT E Grade F Grade 3 G Grade 4 LINE REGULATION ...
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ABSOLUTE MAXIMUM RATINGS Table 24. 1 Parameter Supply Voltage Output to GND Output to GND Short-Circuit Duration Storage Temperature Range PDIP, SOIC_N Package Operating Temperature Range REF19x Junction Temperature Range PDIP, SOIC_N Package Lead Temperature Range (Soldering 60 sec) 1 ...
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REF19x Series TYPICAL PERFORMANCE CHARACTERISTICS 5.004 3 TYPICAL PARTS 5.15V < V < 15V IN 5.003 5.002 5.001 5.000 4.999 4.998 4.997 4.996 –50 – TEMPERATURE (°C) Figure 3. REF195 Output Voltage vs. Temperature 32 5.15V ≤ V ...
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FREQUENCY (Hz) Figure 9. Ripple Rejection vs. Frequency 10µF REF19x 1kΩ 15V 10µF 1µF REF Figure 10. Ripple Rejection vs. Frequency Measurement Circuit ...
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REF19x Series 5V 100% 90% 10% 0% 200mV Figure 18. Line Transient Response 200µ Rev Page 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 REF195 DROPOUT ...
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... Pin 3 should be connected 10µF 0.1µF SLEEP Figure 21. Basic Voltage Reference Configuration MEMBRANE SWITCH-CONTROLLED POWER SUPPLY With output load currents in the tens of mA, the REF19x family of references can operate as a low dropout power supply in hand-held instrument applications. In the circuit shown in Figure 22, a membrane on/off switch is used to control the operation of the reference. During an initial power-on condition, the SLEEP pin is held to GND by the 10 kΩ ...
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... DAC into a voltage-switching DAC using a 1.25 V reference amp, and a pair of resistors. Using a current-switching DAC directly requires an additional operational amplifier at the output to reinvert the signal. A negative voltage reference is then desirable, because an additional operational amplifier is not required for either reinversion (current-switching mode) or amplification (voltage-switching mode) of the DAC output voltage ...
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... GND 1µF 4 10kΩ 100kΩ Figure 24. Negative Precision Voltage Reference Uses No Precision Resistors STACKING REFERENCE ICS FOR ARBITRARY OUTPUTS Some applications may require two reference voltage sources that are a combined sum of standard outputs. The circuit shown in Figure 25 shows how this stacked output reference can be implemented ...
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REF19x Series REF19x 3 SLEEP V 6 REF 1µF GND ADJUST V ≥ I × R (MAX (MIN) IN OUT OUT (REF19x) ...
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... A1 = 1/2 OP295 GND 1µF 100kΩ 4 Figure 29. A Low Dropout, Kelvin-Connected Voltage Reference FAIL-SAFE 5 V REFERENCE Some critical applications require a reference voltage to be maintained at a constant voltage, even with a loss of primary power. The low standby power of the REF19x series and the switched output capability allow a fail-safe reference configuration to be implemented rather easily ...
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... A distinct feature of the circuit is that it can be remotely controlled on or off by digital means via the SLEEP pin ...
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OUTLINE DIMENSIONS 0.400 (10.16) 0.365 (9.27) 0.355 (9.02 0.280 (7.11) 0.250 (6.35) 1 0.240 (6.10) 4 0.100 (2.54) BSC 0.060 (1.52) MAX 0.210 (5.33) MAX 0.015 0.150 (3.81) (0.38) 0.015 (0.38) MIN GAUGE 0.130 (3.30) PLANE 0.115 (2.92) ...
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... REF194ESZ-REEL −40°C to +85°C REF194FS −40°C to +85°C 1 REF194FSZ −40°C to +85°C REF194GP −40°C to +85°C 1 REF194GPZ −40°C to +85°C REF194GS −40°C to +85°C REF194GS-REEL −40°C to +85°C REF194GS-REEL7 −40°C to +85°C 1 REF194GSZ − ...
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Model Temperature Range 1 REF194GSZ-REEL7 −40°C to +85°C REF195ES −40°C to +85°C REF195ES-REEL −40°C to +85°C 1 REF195ESZ −40°C to +85°C 1 REF195ESZ-REEL −40°C to +85°C REF195FS −40°C to +85°C REF195FS-REEL −40°C to +85°C 1 REF195FSZ −40°C to +85°C REF195FSZ-REEL ...
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REF19x Series NOTES ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners C00371-0-10/06(I) Rev Page ...