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Product Detailed Parameters
- Description：IC DAC 12BIT V-OUT 28CDIP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Bulk,Tube
- Number of Bits：12
- Number of D/A Converters：4
- Settling Time：10µs
- Output Type：Voltage - Buffered
- Differential Output：No
- Data Interface：Parallel
- Reference Type：External
- Voltage - Supply, Analog：±11.4V ~ 16.5V
- Voltage - Supply, Digital：5V
- INL/DNL (LSB)：±0.5, ±0.5 (Max)
- Architecture：R-2R
- Operating Temperature：-40°C ~ 85°C
- Package / Case：28-CDIP (0.600", 15.24mm)
- Supplier Device Package：28-CDIP
- Mounting Type：Through Hole
- Grade：-
- Qualification：-
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Overview
The AD664BD-UNI is a monolithic integrated circuit containing four complete 12-bit voltage-output digital-to-analog converters (DACs). It utilizes an R-2R resistor ladder architecture with double-buffered input latches and a data readback function. The device operates with analog supply voltages ranging from ±11.4 V to ±16.5 V and a digital supply of 5 V. Key electrical specifications include a settling time of 10 µs, maximum integral nonlinearity (INL) of ±0.5 LSB, and differential nonlinearity (DNL) of ±0.5 LSB. It features a parallel microprocessor-compatible I/O interface and is housed in a 28-CDIP package.
Feature Summary
- Four independent 12-bit voltage-output DACs on a single chip
- Double-buffered input latch structure for simplified interfacing
- Data register readback capability via the serial port
- "Reset to Zero" override function for output control
Applications
- Automatic test equipment
- Robotics systems
- Process control instrumentation
- Disk drive servo circuits
- Avionics signal generation
Procurement Notes
Verify component authenticity through authorized Analog Devices channels or certified distributors. Confirm lot traceability and MIL-STD-883 compliance if required by specification. Check for lead time variations due to limited production runs. Ensure storage conditions meet moisture sensitivity level requirements prior to assembly.
Selection Notes
Select this part for applications requiring four isolated 12-bit outputs with high accuracy. Verify that the 10 µs settling time meets system bandwidth requirements. Ensure the design accommodates the ±11.4 V to ±16.5 V analog supply range. Consider the 28-CDIP package constraints for PCB layout and thermal management.
Part Context
The AD664BD-UNI belongs to the AD664 family of quad 12-bit DACs. The 'B' suffix typically denotes a specific performance grade or temperature range variant within the series. The 'UNI' suffix often indicates a universal or standard commercial/industrial grade version, distinct from military-compliant variants like the 883B versions. It shares core functionality with other AD664 derivatives but may differ in testing criteria or packaging options.
Replacement Considerations
Direct pin-compatible substitutes within the AD664 family include AD664SD-BIP and AD664JPZ, though package types (CDIP vs PLCC) and specific performance grades must be verified against the original design requirements.
