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Product Detailed Parameters
- Description：12-BIT 100 KSPS A/D CONVERTER
- Series：-
- Mfr：Analog Devices Inc.
- Package：Bulk
- Number of Bits：12
- Sampling Rate (Per Second)：100k
- Number of Inputs：1
- Input Type：Single Ended
- Data Interface：Parallel
- Configuration：S/H-ADC
- Ratio - S/H:ADC：1:01
- Number of A/D Converters：1
- Architecture：SAR
- Reference Type：External, Internal
- Voltage - Supply, Analog：4.75V ~ 5.25V
- Voltage - Supply, Digital：4.75V ~ 5.25V
- Features：-
- Operating Temperature：0°C ~ 70°C
- Package / Case：28-SOIC (0.295", 7.50mm Width)
- Supplier Device Package：28-SOIC
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
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Overview
The AD1674KR-REEL is a monolithic 12-bit analog-to-digital converter manufactured by Analog Devices Inc. It operates within the commercial temperature range of 0°C to +70°C and features an integrated sample-and-hold amplifier (SHA) supporting full Nyquist bandwidth. The device utilizes a successive approximation register (SAR) architecture with a sampling rate of 100 kSPS. It accepts single-ended inputs across four calibrated ranges: 0 V to +10 V, 0 V to +20 V, –5 V to +5 V, and –10 V to +10 V. Power supplies include +5 V logic and ±12 V or ±15 V analog rails. The component is housed in a 28-lead plastic SOIC package.
Feature Summary
- Integrated SHA supporting full Nyquist bandwidth without requiring wait-states
- Industry standard pinout compatible with AD574A and AD674A
- Flexible digital interface with three-state output buffers for microprocessor connection
- Internal 10 V reference with external calibration options
Applications
- Signal processing systems
- Traditional DC measurement applications
- Data acquisition circuits
Procurement Notes
Verify that the ordering suffix 'R' corresponds to the Plastic SOIC package and '-REEL' indicates tape and reel packaging. Confirm the 'K' grade designation matches the required 0°C to +70°C operating temperature range. Ensure the specific revision level aligns with design requirements.
Selection Notes
Select this model for applications requiring a 12-bit resolution at 100 kSPS with a parallel interface. The K grade is suitable for commercial environments. Verify input voltage compatibility with the supported unipolar and bipolar ranges. Consider the power dissipation limits when designing thermal management solutions.
Part Context
The AD1674 series includes multiple temperature grades and packages. The J and K grades are specified for 0°C to +70°C operation. The A and B grades cover -40°C to +85°C, while the T grade supports -55°C to +125°C. Package options include Plastic DIP, Hermetic Ceramic DIP, and Plastic SOIC.
Replacement Considerations
The AD1674 is pin-compatible with the industry standard AD574A and AD674A. These devices may serve as functional replacements if system timing and accuracy specifications allow.
