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Product Detailed Parameters
- Description：IC DAC 12BIT V-OUT 24DIP
- Series：DACPORT®
- Mfr：Analog Devices Inc.
- Package：Tube,Tube
- Number of Bits：12
- Number of D/A Converters：2
- Settling Time：10µs
- Output Type：Voltage - Buffered
- Differential Output：No
- Data Interface：Parallel
- Reference Type：External, Internal
- Voltage - Supply, Analog：±15V
- Voltage - Supply, Digital：15V
- INL/DNL (LSB)：±0.5 (Max), ±0.9 (Max)
- Architecture：R-2R
- Operating Temperature：-40°C ~ 85°C
- Package / Case：24-DIP (0.300", 7.62mm)
- Supplier Device Package：24-PDIP
- Mounting Type：Through Hole
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Overview
The AD7247KN is a dual 12-bit digital-to-analog converter (DAC) from Analog Devices, utilizing LC2MOS technology. It features a parallel word input interface and provides voltage outputs with a settling time of 8 µs. The device operates on dual power supplies ranging from ±10.8 V to ±16.5 V, typically ±15 V. It supports both external and internal reference configurations. Key linearity specifications include a differential nonlinearity (DNL) of ±0.9 LSB and an integral nonlinearity (INL) of ±1 LSB. The component is housed in a 24-pin ceramic dual in-line package (CDIP) suitable for through-hole mounting.
Feature Summary
- Dual-channel 12-bit resolution with LC2MOS architecture
- Parallel word input interface for high-speed data loading
- Settling time of 8 µs with ±0.9 LSB DNL and ±1 LSB INL
- Operates on dual supplies from ±10.8 V to ±16.5 V
Applications
- Industrial process control systems requiring precise analog signal generation
- Test and measurement equipment needing stable dual-channel voltage references
- Data acquisition systems interfacing with parallel digital buses
Procurement Notes
Verify the specific suffix 'KN' against official Analog Devices documentation to confirm the ceramic DIP package variant. Ensure compatibility with existing PCB footprints designed for 24-lead CDIP packages. Confirm supply voltage requirements match the ±10.8 V to ±16.5 V range specified for this component class.
Selection Notes
Select the AD7247KN when dual independent 12-bit DAC channels are required with parallel interface speed. Consider the 8 µs settling time for bandwidth limitations. Verify that the system can accommodate the physical dimensions of the 24-pin ceramic package and the thermal dissipation characteristics under maximum load conditions.
Part Context
The AD7247 belongs to the AD7247 family of LC2MOS DACPORT devices. It shares architectural similarities with serial variants like the AD7243 but offers parallel connectivity for faster throughput. The 'KN' designation typically indicates a military or extended temperature grade ceramic package, distinct from plastic DIP or SOIC versions found in the same series.
Replacement Considerations
Direct pin-compatible replacements within the same package may include other AD7247 variants such as AD7247JNZ or AD7247ABNZ, provided the package type matches. Verify electrical specifications and temperature ranges before substitution.
