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Product Detailed Parameters
- Description：IC VREF SHUNT 0.08% SOT23-3
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：1.225V
- Voltage - Output (Max)：-
- Current - Output：10 mA
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：-
- Qualification：-
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Overview
The AD1580BRTZ-R2 is a micropower, precision shunt voltage reference manufactured by Analog Devices Inc. It provides a stable 1.225 V output with an initial accuracy of ±0.1% and a maximum temperature drift of 50 ppm/°C. The device operates within a wide current range from 50 µA to 10 mA and features a dynamic output impedance of 0.5 Ω maximum. It is housed in a compact SOT-23-3 surface-mount package and functions reliably across an operating temperature range of −40°C to +85°C.
Feature Summary
- Utilizes proprietary curvature correction design techniques to minimize nonlinearities in the voltage output temperature characteristics.
- Maintains stability when connected to any value of capacitive load without oscillation.
- Features high electrostatic discharge (ESD) protection ratings for robust operation.
Applications
- Portable, battery-powered equipment
- Cellular phones, notebook computers, PDAs, GPSs, and DMMs
- Computer workstations
- Smart industrial transmitters
- PCMCIA cards
Procurement Notes
Verify that the specific ordering suffix matches the required packaging format, as the R2 designation indicates cut tape or similar reel options distinct from standard bulk reels. Confirm RoHS compliance status through official documentation before integration. Ensure the selected component grade meets the strict initial accuracy and temperature drift requirements defined in the datasheet specifications.
Selection Notes
Select this component when a low-cost, two-terminal shunt reference is required for space-constrained designs. The B grade offers tighter initial accuracy compared to the A grade. Consider the SOT-23 package dimensions for PCB layout constraints. Verify that the system supply voltage allows for sufficient headroom to maintain the minimum operating current of 50 µA while limiting maximum current to 10 mA.
Part Context
This part belongs to the AD1580 family of micropower precision references. The family includes variants with different accuracies and packages, such as the SC70 option. The AD1580 series is designed for applications requiring stable voltage references in data acquisition systems and portable electronics where power consumption and physical size are critical factors.
Replacement Considerations
The AD1580BKSZ-REEL7 serves as a pin-compatible alternative in the SC-70 package with slightly different initial accuracy specifications.
FAQ
How does the AD1580 handle capacitive loads?
The AD1580 is stable with any value of capacitive load, eliminating the need for isolation resistors in most standard applications.
What is the turn-on settling time for the AD1580?
The turn-on settling time to 0.1% is typically 5 µs when measured with no load capacitor.
