Model No: REF5020AIDR
Texas Instruments REF5020AIDR
Manufacturer: Texas Instruments
SEMICON NO.: REF5020AIDR
Package: 8-SOIC
Stock: In stock
Description: Voltage Reference Series Fixed 2.048V 10 mA
SEMICON NO.: REF5020AIDR
Package: 8-SOIC
Stock: In stock
Description: Voltage Reference Series Fixed 2.048V 10 mA
Quantity :
| Mfr | Texas Instruments |
| Device Type | Low-Noise, Very Low Drift, Voltage Reference |
| Reference Type | Series (Precision) |
| Output Type | Fixed |
| Output Voltage | 2.048 V |
| Initial Accuracy (Tolerance) | ±0.1% (Max) |
| Output Current | ±10 mA |
| Temperature Coefficient | 8 ppm/°C (Max) |
| Input Voltage (VIN) | 2.7 V to 18 V |
| Supply Current (IQ) | 1.2 mA (Typical) |
| Line Regulation | Excellent |
| Load Regulation | 30 ppm/mA |
| Output Current (Max) | 10 mA |
| Operating Temperature | –40°C to +125°C |
| Package | 8-SOIC |
| Mounting Type | Surface Mount |
| Compliance | RoHS Compliant |
The REF5020AIDR is a low-noise, very low-drift, precision series voltage reference from Texas Instruments that provides a fixed 2.048 V output from a 2.7 V to 18 V supply. As a standard-grade member of the REF50xx family, it delivers plus or minus 0.1% initial accuracy, 8 ppm/°C maximum temperature drift and only 3 uVpp/V low-frequency noise from 0.1 Hz to 10 Hz while sourcing and sinking up to 10 mA. A TEMP pin enables on-chip temperature monitoring, and a TRIM/NR pin supports output trimming or external noise reduction. The device is specified from -40 °C to +125 °C.
Highlights and Key Features
● Fixed 2.048 V precision reference with plus or minus 0.1% initial accuracy and 8 ppm/°C maximum drift.
● Very low 3 uVpp/V low-frequency noise (0.1 Hz to 10 Hz) for 16-bit data acquisition.
● Sources and sinks up to 10 mA with excellent 1 ppm/V line and 30 ppm/mA load regulation.
● TEMP pin outputs 575 mV at 25 °C with 2.64 mV/°C sensitivity for system temperature monitoring.
● TRIM/NR pin allows output adjustment and external noise filtering for tighter accuracy.
● Wide 2.7 V to 18 V input, 0.8 mA typical quiescent current, MSL 2 and 260 °C reflow capability.
Applications
● Precision data acquisition systems and 16-bit, 250 kSPS analog front ends.
● Semiconductor test equipment and industrial process control loops.
● Medical instrumentation, plus pressure and temperature transmitters.
● Laboratory and field instrumentation needing a stable reference over temperature.
Frequently Asked Questions
Q: What is the main advantage of the REF5020AIDR?
A: A fixed 2.048 V output with very low noise and drift, letting 16-bit converters reach their rated accuracy.
Q: How does the A suffix matter?
A: REF5020AIDR is standard grade at plus or minus 0.1% and 8 ppm/°C; REF5020IDR is high grade at plus or minus 0.05% and 3 ppm/°C.
Q: Which capacitors are required?
A: A 1 uF output capacitor and a 0.1 uF input bypass placed close to the pins for stability and noise.
Alternative voltage reference models
1. REF5020IDR: high-grade drop-in replacement offering plus or minus 0.05% accuracy and 3 ppm/°C drift in the same 8-SOIC.
2. REF5020EIDR: enhanced REF50E grade with 2.5 ppm/°C, 0.025% accuracy, 0.5 uVpp/V noise and a 42 V input.
3. ADR4520ARZ: an Analog Devices 2.048 V series reference with 1 uVpp noise, 4 ppm/°C drift and a 3 V to 15 V input.
4. MAX6070AAUT20: a 2.048 V, 6 ppm/°C maximum SOT23-6 alternative for compact designs.
● Fixed 2.048 V precision reference with plus or minus 0.1% initial accuracy and 8 ppm/°C maximum drift.
● Very low 3 uVpp/V low-frequency noise (0.1 Hz to 10 Hz) for 16-bit data acquisition.
● Sources and sinks up to 10 mA with excellent 1 ppm/V line and 30 ppm/mA load regulation.
● TEMP pin outputs 575 mV at 25 °C with 2.64 mV/°C sensitivity for system temperature monitoring.
● TRIM/NR pin allows output adjustment and external noise filtering for tighter accuracy.
● Wide 2.7 V to 18 V input, 0.8 mA typical quiescent current, MSL 2 and 260 °C reflow capability.
Applications
● Precision data acquisition systems and 16-bit, 250 kSPS analog front ends.
● Semiconductor test equipment and industrial process control loops.
● Medical instrumentation, plus pressure and temperature transmitters.
● Laboratory and field instrumentation needing a stable reference over temperature.
Frequently Asked Questions
Q: What is the main advantage of the REF5020AIDR?
A: A fixed 2.048 V output with very low noise and drift, letting 16-bit converters reach their rated accuracy.
Q: How does the A suffix matter?
A: REF5020AIDR is standard grade at plus or minus 0.1% and 8 ppm/°C; REF5020IDR is high grade at plus or minus 0.05% and 3 ppm/°C.
Q: Which capacitors are required?
A: A 1 uF output capacitor and a 0.1 uF input bypass placed close to the pins for stability and noise.
Alternative voltage reference models
1. REF5020IDR: high-grade drop-in replacement offering plus or minus 0.05% accuracy and 3 ppm/°C drift in the same 8-SOIC.
2. REF5020EIDR: enhanced REF50E grade with 2.5 ppm/°C, 0.025% accuracy, 0.5 uVpp/V noise and a 42 V input.
3. ADR4520ARZ: an Analog Devices 2.048 V series reference with 1 uVpp noise, 4 ppm/°C drift and a 3 V to 15 V input.
4. MAX6070AAUT20: a 2.048 V, 6 ppm/°C maximum SOT23-6 alternative for compact designs.
