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REF2125 Datasheet(PDF) 5 Page - Texas Instruments |
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REF2125 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 24 page 5 REF2125 www.ti.com SBAS798 – SEPTEMBER 2017 Product Folder Links: REF2125 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated (1) Temperature drift is specified according to the box method. See Feature Description for more details. (2) Dropout voltage under test condition is 100mV. (3) In clean start section it is referred as IPEAK. (4) The peak-to-peak noise measurement procedure is explained in more detail in Noise Performance. (5) Long-term stability measurement procedure is explained in more in detail in Long-Term Stability. (6) The thermal hysteresis measurement procedure is explained in more detail in Thermal Hysteresis. 6.5 Electrical Characteristics At TA = 25°C unless otherwise noted. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ACCURACY AND DRIFT Output voltage accuracy –40°C ≤ TA ≤ 125°C –0.05% 0.05% Output voltage temperature coefficient(1) 2.5 6 ppm/°C LINE AND LOAD REGULATION ΔV(OΔVIN) Line regulation VIN = 2.55 V to 12 V , TA = 25°C 2 ppm/V VIN = VREF + VDO (2) to 12 V, −40°C ≤ T A ≤ 125°C 15 ΔV(OΔIL) Load regulation IL = 0 mA to 10 mA, VIN = 3 V, TA = 25°C Sourcing 20 ppm/mA IL = 0 mA to 10 mA, VIN = 3 V, −40°C ≤ TA ≤ 125°C Sourcing 30 IL = 0 mA to –10 mA, VIN = VREF+ VDO (2), T A = 25°C Sinking 40 IL = 0 mA to –10 mA, VIN = VREF+ VDO (2), −40°C ≤ T A ≤ 125°C Sinking 70 ISC Short-circuit current(3) VREF = 0, CCS = No connect, TA = 25°C 18 mA RCS = 500kΩ, TA = 25°C 7 mA CCS = GND, TA = 25°C 0.5 mA NOISE en p-p Output voltage noise(4) ƒ = 0.1 Hz to 10 Hz 5 μV p-p/V ƒ = 10 Hz to 10 kHz 24 μV rms en Output voltage noise density ƒ = 1 kHz 0.25 ppm/ √Hz HYSTERESIS AND LONG TERM STABILITY Long-term stability(5) 1000 hours 30 ppm Output voltage hysteresis(6) TA = 25°C to −40°C to 125°C to 25°C, Cycle 1 30 ppm TA = 25°C to −40°C to 125°C to 25°C, Cycle 2 10 TURNON tON Turnon time 0.1% of output voltage settling, CL = 10 µF, REF2125 2.5 ms CAPACITIVE LOAD CL Stable output capacitor value −40°C ≤ TA ≤ 125°C 0.1 10 µF OUTPUT VOLTAGE VREF Output voltage REF2125 2.5 V |
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