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Product Detailed Parameters
- Description：IC ADC 12BIT SAR 28SOIC
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tape & Reel (TR)
- 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：±11.4V ~ 16.5V
- Voltage - Supply, Digital：5V
- 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 AD1674JR-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 utilizes a plastic SOIC-28 package. The device integrates a sample-and-hold amplifier, a 10V reference, and three-state output buffers. It supports unipolar (0V–10V, 0V–20V) and bipolar (±5V, ±10V) input ranges with a sampling rate of 100 kSPS. Power supplies include VLOGIC at +5V and analog supplies at ±12V or ±15V.
Feature Summary
- Integrated Sample-and-Hold Amplifier supporting full Nyquist bandwidth
- Industry standard pinout compatible with AD574A and AD674A
- Flexible digital interface with 8-bit or 12-bit microprocessor compatibility
- Calibrated input ranges: 0V–10V, 0V–20V, ±5V, and ±10V
Applications
- Signal processing systems requiring AC and DC specifications
- Traditional DC measurement applications
- Microprocessor-based data acquisition systems
Procurement Notes
Verify that the ordering suffix 'JR' corresponds to the Plastic SOIC-28 package and the J grade for the 0°C to +70°C temperature range. Confirm the REEL designation indicates tape and reel packaging. Ensure the specific revision matches the required datasheet version for timing parameters.
Selection Notes
Select this component when an industry-standard pinout is required for direct replacement of legacy ADCs like the AD574A. Choose the J grade for commercial environments operating between 0°C and +70°C. Verify that the power supply rails match the specified +5V logic and ±12V/±15V analog requirements.
Part Context
The AD1674 series includes multiple grades (J, K, A, B, T) and packages (DIP, SOIC, Ceramic DIP). The AD1674JR specifically denotes the J grade in a plastic SOIC package. Other variants offer extended temperature ranges or hermetic sealing for military applications.
Replacement Considerations
The AD1674 is pin-compatible with the AD574A and AD674A. When replacing these devices, ensure the system accommodates the AD1674's internal clocking and control logic differences, particularly regarding the CE, CS, and R/C signal interactions.
