Datasheet REF3425-EP (Texas Instruments) - 5

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REF3425-EP , REF3430-EP, REF3433-EP, REF3440-EP www.ti.com
SBAS942B – DECEMBER 2018 – REVISED APRIL 2019
7.5 Electrical Characteristics
At TA = 25°C unless otherwise noted.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ACCURACY AND DRIFT
Output voltage T accuracy A = 25°C –0.05% 0.05% Output voltage temperature –55°C ≤ TA ≤ 125°C 2.5 10 ppm/°C coefficient(1)
LINE AND LOAD REGULATION
VIN = 2.55 V to 12 V, TA = 25°C 2 ΔV(OΔVIN) Line regulation(2) ppm/V VIN = VREF + VDO to 12 V, –55°C ≤ TA ≤ 125°C 15 IL = 0 mA to 10 mA, VIN = 3 Sourcing 20 V, TA = 25°C IL = 0 mA to 10 mA, VIN = 3 Sourcing 30 V, –55°C ≤ TA ≤ 125°C REF3425-EP 40 I REF3430-EP 43 L = 0 mA to –10 mA, VIN = Sinking ΔV(OΔIL) Load regulation(2) V ppm/mA REF + VDO, TA = 25°C REF3440-EP 48 REF3440-EP 60 REF3425-EP 70 IL = 0 mA to –10 mA, VIN = REF3430-EP 75 VREF + VDO, –55°C ≤ TA ≤ Sinking 125°C REF3433-EP 84 REF3440-EP 98 Short-circuit ISC current (output VREF = 0, TA = 25°C 18 22 mA shorted to ground)
NOISE
ƒ = 0.1 Hz to 10 Hz 5 Output voltage µV p-p/V en p-p ƒ = 0.1 Hz to 10 Hz (REF3440-EP) 3.8 noise(3) ƒ = 10 Hz to 10 kHz 24 µV rms Output voltage ƒ = 1 kHz 0.25 en ppm/√Hz noise density ƒ = 1 kHz (REF3440-EP) 0.2
LONG-TERM STABILITY
Long-term 0 - 1000 hours at 35°C 25 ppm stability(4) 1000 - 2000 hours at 35°C 10
TURNON
tON Turnon time 0.1% of output voltage settling, CL = 10 µF 2.5 ms
CAPACITIVE LOAD
Stable output CL –55°C ≤ T capacitor value A ≤ 125°C 0.1 10 µF (1) Temperature drift is specified according to the box method. See the Feature Description section for more details. (2) The ppm/V and ppm/mA in line and load regulation can be also expressed as µV/V and µV/mA. (3) The peak-to-peak noise measurement procedure is explained in more detail in the Noise Performance section. (4) Long-term stability measurement procedure is explained in more in detail in the Long-Term Stability section. Copyright © 2018–2019, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: REF3425-EP REF3430-EP REF3433-EP REF3440-EP Document Outline 1 Features 2 Applications 3 Description Table of Contents 4 Revision History 5 Device Comparison Table 6 Pin Configuration and Functions 7 Specifications 7.1 Absolute Maximum Ratings 7.2 ESD Ratings 7.3 Recommended Operating Conditions 7.4 Thermal Information 7.5 Electrical Characteristics 7.6 Typical Characteristics 8 Parameter Measurement Information 8.1 Solder Heat Shift 8.2 Long-Term Stability 8.3 Power Dissipation 8.4 Noise Performance 9 Detailed Description 9.1 Overview 9.2 Functional Block Diagram 9.3 Feature Description 9.3.1 Supply Voltage 9.3.2 Low Temperature Drift 9.3.3 Load Current 9.4 Device Functional Modes 9.4.1  EN Pin 9.4.2 Negative Reference Voltage 10 Application and Implementation 10.1 Application Information 10.2 Typical Application: Basic Voltage Reference Connection 10.2.1 Design Requirements 10.2.2 Detailed Design Procedure 10.2.2.1 Input and Output Capacitors 10.2.2.2 4-Wire Kelvin Connections 10.2.2.3 VIN Slew Rate Considerations 10.2.2.4 Shutdown/Enable Feature 10.2.3 Application Curves 11 Power Supply Recommendations 12 Layout 12.1 Layout Guidelines 12.2 Layout Example 13 Device and Documentation Support 13.1 Documentation Support 13.1.1 Related Documentation 13.2 Related Links 13.3 Receiving Notification of Documentation Updates 13.4 Community Resources 13.5 Trademarks 13.6 Electrostatic Discharge Caution 13.7 Glossary 14 Mechanical, Packaging, and Orderable Information