REF5040
- Low temperature drift (maximum):
- Enhanced-grade: 2.5ppm/°C
- High-grade: 3ppm/°C
- Standard-grade: 8ppm/°C
- High accuracy (maximum):
- Enhanced-grade: 0.025%
- High-grade: 0.05%
- Standard-grade: 0.1%
- Low noise:
- Enhanced-grade: 0.5µVPP/V
- High/Standard-grade: 3µVPP/V
- Excellent long-term stability:
- 22ppm after first 1000 hours (SOIC-8)
- 50ppm after first 1000 hours (VSSOP-8)
- Wide input voltage support:
- Enhanced-grade: 42V
- High/Standard-grade: 18V
- High-output current: ±10mA
- Temperature range: -40°C to 125°C
The REF50xx is a family of low-noise, low-drift, very high precision voltage references. These references are capable of both sinking and sourcing current, and have excellent line and load regulation.
Excellent temperature drift (2.5ppm/°C) and high accuracy (0.025%) are achieved using proprietary design techniques. These features, combined with very low flicker noise (0.5µVPP/V), make the REF50xx family an excellent choice for use in high-precision data acquisition systems. REF50 family is available in enhanced grade (REF50xxEI), high grade (REF50xxI) and standard grade (REF50xxAI). The reference voltages are offered in 8-pin SOIC and VSSOP packages and are specified from –40°C to 125°C.
The REF50xxEI supports wide supply voltage rating of 42V with ultra-low IQ of 280µA. The wide supply range allows for direct connection to the battery or field supply. This also protects the device in case of power supply IC failure.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.
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REF5040 TINA-TI Reference Design (Rev. A)
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PSPICE-FOR-TI — PSpice® for TI design and simulation tool
TIDA-01576 — High accuracy analog input module reference design with 16-bit 1-MSPS dual simultaneous-sampling ADC
TIDA-01056 — 20-bit 1MSPS DAQ Reference Design Optimizing Power Supply Efficiency While Minimizing EMI
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TIDA-010008 — Flat-Clamp TVS based Reference Design for Protection Against Transient for Grid Applications
TIDA-01402 — High-Precision Reference Design for Buffering a DAC Signal
TIDA-01214 — Isolated, High-Accuracy Analog Input Module Reference Design Using 16-Bit ADC and Digital Isolator
TIDA-01055 — ADC Voltage Reference Buffer Optimization Reference Design for High Performance DAQ Systems
TIDA-01057 — Reference Design Maximizing Signal Dynamic Range for True 10 Vpp Differential Input to 20 bit ADC
TIPD173 — 16 bit 1MSPS Data Acquisition Reference Design for Single-Ended Multiplexed Applications
Package | Pins | CAD symbols, footprints & 3D models |
---|---|---|
SOIC (D) | 8 | Ultra Librarian |
VSSOP (DGK) | 8 | Ultra Librarian |
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