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Product Detailed Parameters
- Description：IC ADC 12BIT SAR 28CDIP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- 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：-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 AD1674BD is a 12-bit, 100 kSPS analog-to-digital converter manufactured by Analog Devices Inc. It features an integrated sample-and-hold amplifier (SHA) and operates with ±11.4 V to ±16.5 V analog supplies and a +5 V logic supply. The device utilizes a SAR architecture with a parallel digital interface in a 28-lead hermetically sealed ceramic DIP package. It supports unipolar (0–10 V, 0–20 V) and bipolar (±5 V, ±10 V) input ranges. Key specifications include a full-scale error of 0.25% FSR, integral nonlinearity of ±1/2 LSB, and a signal-to-noise ratio of 70 dB.
Feature Summary
- Integrated SHA supporting full Nyquist bandwidth without wait-states
- Industry standard pinout compatible with AD574A and AD674A
- Fully specified for AC parameters including THD and S/(N+D)
- Flexible digital interface with three-state output buffers
Applications
- Signal processing systems requiring high dynamic performance
- Traditional DC measurement applications
- Industrial control systems operating in commercial or industrial temperature ranges
Procurement Notes
Verify the specific ordering suffix 'BD' corresponds to the -40°C to +85°C temperature range and hermetically sealed ceramic DIP package. Confirm that the component meets MIL-STD-883 screening requirements if military-grade reliability is necessary for the application.
Selection Notes
Select the AD1674BD when a 12-bit resolution at 100 kSPS is required alongside a wide input bandwidth. Ensure the design accommodates the ±12 V or ±15 V analog power supplies and +5 V logic supply. Consider the 28-lead ceramic DIP footprint for PCB layout constraints.
Part Context
The AD1674BD belongs to the AD1674 family of 12-bit A/D converters. It is implemented using Analog Devices’ BiMOS II process, combining high-performance bipolar analog circuitry with digital CMOS logic. This technology enables the integration of the SHA, reference, and clock circuits on a single die.
Replacement Considerations
The AD1674BD is pin-compatible with the AD574A and AD674A. However, these alternatives may offer different conversion speeds or accuracy specifications. Verify electrical compatibility before substitution.
