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Product Detailed Parameters
- Description：IC DAC 12BIT V-OUT 28DIP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube,Tube
- Number of Bits：12
- Number of D/A Converters：1
- Settling Time：4µs
- Output Type：Voltage - Buffered
- Differential Output：No
- Data Interface：Parallel
- Reference Type：External, Internal
- Voltage - Supply, Analog：±11.4V ~ 16.5V
- Voltage - Supply, Digital：-
- INL/DNL (LSB)：±0.25, ±0.25
- Architecture：R-2R
- Operating Temperature：0°C ~ 70°C
- Package / Case：28-DIP (0.600", 15.24mm)
- Supplier Device Package：28-PDIP
- Mounting Type：Through Hole
- Grade：-
- Qualification：-
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Overview
The AD667KN is a microprocessor-compatible 12-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc. It features a parallel interface and voltage output in a 28-pin Plastic DIP package. 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 3 μs to ±0.01% for full-scale range changes, a maximum linearity error of ±1/4 LSB at +25°C, and monotonicity guaranteed across the operating temperature range of 0°C to +70°C.
Feature Summary
- 12-bit resolution with double-buffered input latches for microprocessor compatibility
- Integrated low-noise buried Zener reference source
- Monotonic operation guaranteed over the full specified temperature range
- Parallel data interface supporting TTL and CMOS logic levels
Applications
- Microprocessor-based control systems requiring precise analog signal generation
- Industrial process control loops
- Test and measurement equipment
Procurement Notes
Verify that the component matches the specific K grade for ±1/4 LSB linearity at +25°C. Confirm the package type is 28-PDIP and the operating temperature range meets the 0°C to +70°C requirement. Ensure power supply decoupling follows the datasheet guidelines to maintain performance.
Selection Notes
Select the AD667KN when a 12-bit DAC with high accuracy (±1/4 LSB) and fast settling time (3 μs) is required. It is suitable for applications needing direct interfacing with 8-bit, 12-bit, or 16-bit buses via its addressable latch structure. Consider the ±12 V or ±15 V supply requirements and the need for external trimming if using unipolar configurations.
Part Context
The AD667KN belongs to the AD667 family of 12-bit D/A converters. This series includes various grades (J, K, A, B, S) differentiated by linearity accuracy and operating temperature ranges. The KN variant specifically denotes the K grade performance housed in a plastic DIP package.
Replacement Considerations
Direct replacement options within the same family include the AD667KP (PLCC package) or AD667JN/JNZ (lower linearity grade). Verify pinout compatibility and thermal characteristics when substituting.
