REF5020IDG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The REF5020IDG4 is a precision 2.048 V three-terminal voltage reference IC with 10 mA output capability and a tight output range of 2.045 V to 2.050 V, packaged in an 8-pin SOIC for high-accuracy ADC and DAC reference applications.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- REF5020IDG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 2.048 V precision output ideal for 12-bit and 16-bit ADC/DAC references
- Tight output voltage tolerance: 2.045 V to 2.050 V
- 10 mA output current for driving multiple reference loads
- Three-terminal architecture for simple dropout-free biasing
- 8-pin SOIC package for easy PCB integration
- Low noise output suitable for precision analog measurement chains
Applications
The REF5020IDG4 provides a stable 2.048 V reference for precision analog-to-digital and digital-to-analog converters in industrial instrumentation and data acquisition systems. It is used in medical measurement equipment, smart power meters, and calibration instruments where a binary-friendly 2.048 V reference aligns with 12-bit LSB increments. Laboratory test equipment and precision sensor interfaces also rely on this device for its low offset and stable output voltage.
Specifications
| YTEOL | 0 |
| Analog IC - Other Type | THREE TERMINAL VOLTAGE REFERENCE |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Voltage-Max | 2.05V |
| Output Voltage-Min | 2.045V |
| Output Voltage-Nom | 2.048V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 18V |
| Supply Voltage-Min (Vsup) | 2.7V |
| Surface Mount | YES |
| Temp Coef of Voltage-Max | 8ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trim/Adjustable Output | YES |
| Voltage Tolerance-Max | 0.05% |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for REF5020IDG4:
Voltage Reference, 1 Output, 2.048V, Trim/Adjustable, PDSO8
Three Terminal Voltage Reference, 1 Output, 2.048V, Trim/Adjustable, PDSO8
Frequently Asked Questions
Why is the 2.048 V output of the REF5020IDG4 particularly convenient for ADC reference design?
A 2.048 V reference is binary-friendly: for a 12-bit ADC it gives an LSB of exactly 0.5 mV, and for a 16-bit ADC an LSB of approximately 31.25 µV. This simplifies code-to-voltage conversion in firmware and reduces rounding errors in precision measurement systems compared to a 2.5 V or 3 V reference.
How much output current can the REF5020IDG4 supply to the reference loads?
The REF5020IDG4 can source up to 10 mA from its output pin, which is sufficient to simultaneously supply the reference inputs of multiple ADCs or DACs on a shared reference bus. This reduces the number of reference ICs needed on multi-channel data acquisition boards, lowering bill-of-materials cost.
How tight is the output voltage accuracy of the REF5020IDG4?
The REF5020IDG4 maintains its output voltage between 2.045 V and 2.050 V over its operating conditions, a total tolerance band of only 5 mV around the 2.048 V nominal value. This level of precision meets the reference accuracy requirements for 12-bit and some 14-bit ADC designs without external trimming.
In which measurement system categories does the REF5020IDG4 see the most use?
The REF5020IDG4 is widely used in industrial process control instruments, medical monitoring devices, smart electricity meters, and precision weigh scales where stable, low-drift 2.048 V references are required. Its 8-pin SOIC package and 10 mA output make it straightforward to integrate into multi-channel ADC front-ends in these demanding applications.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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