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AD780CRZ
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Product Detailed Parameters
- Description：IC VREF SERIES 0.06%/0.17% 8SOIC
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- 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 AD780CRZ is a high-precision band gap voltage reference in an 8-lead SOIC package. It provides pin-programmable outputs of 2.5 V or 3.0 V from input voltages between 4.0 V and 36 V. The device features ultralow drift, with a maximum temperature coefficient of 7 ppm/°C over the -40°C to +85°C range. Initial accuracy is specified at ±1 mV (±0.04%). Quiescent current is typically 1 mA. The output can source or sink up to 10 mA, supporting both series and shunt mode operations.
Feature Summary
- Pin-programmable selection between 2.5 V and 3.0 V output voltages
- Ultralow drift performance achieved through laser trimming
- Capable of driving capacitive loads without instability
- Integrated temperature output pin for system monitoring
Applications
- Precision references for high-resolution analog-to-digital converters
- Reference sources for digital-to-analog converters
- Temperature transducer configurations
- Negative voltage reference generation in shunt mode
Procurement Notes
Verify the specific suffix 'CRZ' indicates the industrial temperature grade (-40°C to +85°C) and RoHS compliance. Confirm the package type matches the required PCB footprint. Ensure the ordering quantity aligns with the tube packing format associated with this specific part number variant.
Selection Notes
Select the AD780CRZ when low initial error and minimal temperature drift are critical requirements. The device supports both sourcing and sinking currents up to 10 mA. Consider the integrated temperature pin if ambient monitoring is needed within the same component footprint.
Part Context
The AD780CRZ belongs to the AD780 family of ultrahigh precision band gap references. This family includes grades AN, AR, BN, BR, and CR, differentiated by drift specifications. The CR grade offers a maximum drift of 7 ppm/°C, positioning it as a high-performance option for general-purpose precision applications requiring stability over the industrial temperature range.
Replacement Considerations
The datasheet identifies the LT1019(A)-2.5 and AD680 as legacy parts for which the AD780 serves as a plug-in upgrade. Verify pin compatibility and thermal characteristics when substituting these older components.
