SBVS032I March   2002  – July 2022 REF3012 , REF3020 , REF3025 , REF3030 , REF3033 , REF3040

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Supply Voltage
      2. 8.3.2 Thermal Hysteresis
      3. 8.3.3 Temperature Drift
      4. 8.3.4 Noise Performance
      5. 8.3.5 Long-Term Stability
      6. 8.3.6 Load Regulation
    4. 8.4 Device Functional Modes
      1. 8.4.1 Negative Reference Voltage
      2. 8.4.2 Data Acquisition
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Related Links
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Support Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.5 Electrical Characteristics


at TA = 25°C, VIN = 5 V, and ILOAD = 0 mA (unless otherwise noted)
PARAMETERTEST CONDITIONSMINTYPMAXUNIT
REF3012 (1.25 V)(1)
VOUTOutput voltage1.24751.251.2525V
Initial accuracy0.2%
Output voltage noisef = 0.1 Hz to 10 Hz14μVPP
f = 10 Hz to 10 kHz42µVrms
Line regulation1.8 V ≤ VIN ≤ 5.5 V60190µV/V
REF3020 (2.048 V)
VOUTOutput voltage2.0442.0482.052V
Initial accuracy0.2%
Output voltage noisef = 0.1 Hz to 10 Hz23μVPP
f = 10 Hz to 10 kHz65µVrms
Line regulationVREF + 50 mV ≤ VIN ≤ 5.5 V110290µV/V
REF3025 (2.5 V)
VOUTOutput voltage2.4952.502.505V
Initial accuracy0.2%
Output voltage noisef = 0.1 Hz to 10 Hz28μVPP
f = 10 Hz to 10 kHz80µVrms
Line regulationVREF + 50 mV ≤ VIN ≤ 5.5 V120325µV/V
REF3030 (3.0 V)
VOUTOutput voltage2.9943.03.006V
Initial accuracy0.2%
Output voltage noisef = 0.1 Hz to 10 Hz33μVPP
f = 10 Hz to 10 kHz94µVrms
Line regulationVREF + 50 mV ≤ VIN ≤ 5.5 V120375µV/V
REF3033 (3.3 V)
VOUTOutput voltage3.2943.303.306V
Initial accuracy0.2%
Output voltage noisef = 0.1 Hz to 10 Hz36μVPP
f = 10 Hz to 10 kHz105µVrms
Line regulationVREF + 50 mV ≤ VIN ≤ 5.5 V130400µV/V
REF3040 (4.096 V)
VOUTOutput voltage4.0884.0964.104V
Initial accuracy0.2%
Output voltage noisef = 0.1 Hz to 10 Hz45μVPP
f = 10 Hz to 10 kHz128µVrms
Line regulationVREF + 50 mV ≤ VIN ≤ 5.5 V160410µV/V
REF30xx (REF3012, REF3020, REF3025, REF3030, REF30333, REF3040)
dVOUT/dTOutput voltage temperature drift(2)0°C ≤ TA ≤ 70°C2050ppm/°C
–30°C ≤ TA ≤ +85°C2860
–40°C ≤ TA ≤ +85°C3065
–40°C ≤ TA ≤ +125°C3575
Long-term stability0000h to 1000h24ppm
1000h to 2000h15
ΔVO(ΔIL)Load regulation(3)0 mA < ILOAD < 25 mA, VIN = VREF + 500 mV(1)3100µV/mA
dTThermal hysteresis(4)25100ppm
VIN – VOUTDropout voltage150mV
ISCShort-circuit current45mA
Turnon settling timeTo 0.1% with CL = 1 μF120µs
POWER SUPPLY
IQQuiescent current4250μA
–40°C ≤ TA ≤ +125°C59
(1) The minimum supply voltage for the REF3012 is 1.8 V.
(2) Box method used to determine over temperature drift.
(3) Typical value of load regulation reflects measurements using a force and sense contacts; see Section 8.3.6 section.
(4) Thermal hysteresis procedure explained in more detail in Section 8.3.2 section.