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AD780BRZ-REEL7
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Product Detailed Parameters
- Description：IC VREF SERIES 0.04%/0.03% 8SOIC
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Programmable
- Voltage - Output (Min/Fixed)：±2.5V, ±3V
- Voltage - Output (Max)：-
- Current - Output：10 mA
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The AD780BRZ-REEL7 is a high precision band gap voltage reference providing pin-programmable 2.5 V or 3.0 V outputs from input voltages between 4.0 V and 36 V. It features ultralow drift of 3 ppm/°C maximum, low noise of 100 nV/√Hz, and quiescent current of 1 mA maximum. The device operates in series or shunt mode, supports ±2.5 V or ±3.0 V outputs, and includes a temperature output pin. It is housed in an 8-Lead SOIC package.
Feature Summary
- Pin programmable for 2.5 V or 3.0 V output selection
- Ultralow drift and high accuracy with laser trimming
- Low noise performance with external reduction capability
- Temperature output pin for transducer configuration
Applications
- High resolution analog-to-digital converters (ADCs)
- Digital-to-analog converters (DACs)
- Precision general-purpose reference applications
Procurement Notes
Verify the specific ordering suffix to confirm packaging quantity and reel specifications. Ensure the component grade matches the required temperature range and accuracy specifications. Confirm RoHS compliance status as indicated by the part number designation. Cross-reference the datasheet revision to validate parameter updates before final procurement decisions.
Selection Notes
Select this component when ultrahigh precision and low drift are critical requirements. The pin-programmable feature allows flexibility between 2.5 V and 3.0 V outputs without changing hardware. Consider the temperature output pin if system calibration or ambient monitoring is needed. Verify that the input voltage range meets the application's supply constraints.
Part Context
The AD780BRZ-REEL7 belongs to the AD780 family of high precision references. It serves as a plug-in upgrade for older references like the LT1019(A)–2.5 and AD680. The BRZ variant specifically denotes the B-grade accuracy level packaged in an 8-Lead SOIC format on a reel.
Replacement Considerations
LT1019(A)–2.5
FAQ
How is the output voltage selected?
The output voltage is determined by the connection of Pin 8. Grounding Pin 8 selects the 3.0 V output, while leaving it unconnected selects the 2.5 V output.
Can the AD780 generate negative voltages?
Yes, by operating in shunt mode where the input and output are connected to ground and the GND pin is biased via a resistor, it can provide negative reference outputs.
