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AD774BJNZ
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Product Detailed Parameters
- Description：IC ADC 12BIT SAR 28DIP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Bulk,Tube
- Number of Bits：12
- Sampling Rate (Per Second)：-
- Number of Inputs：2
- Input Type：Single Ended
- Data Interface：Parallel
- Configuration：ADC
- Ratio - S/H:ADC：-
- Number of A/D Converters：1
- Architecture：SAR
- Reference Type：Internal
- Voltage - Supply, Analog：±11.4V ~ 16.5V
- Voltage - Supply, Digital：5V
- Features：-
- Operating Temperature：-40°C ~ 85°C
- Package / Case：28-DIP (0.600", 15.24mm)
- Supplier Device Package：28-PDIP
- Mounting Type：Through Hole
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Overview
The AD774BJNZ is a 12-bit successive approximation register (SAR) analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It features a parallel interface and supports single-ended inputs with a sampling rate of 125 kS/s. The device operates on dual power supplies, requiring an analog supply voltage between 4.5 V and 5.5 V and a digital supply voltage between 11.4 V and 16.5 V. It is housed in a 28-pin PDIP package designed for through-hole mounting. The component includes both external and internal reference options, with a reference voltage capability of 10 V. Integral nonlinearity is specified at +/- 0.5 LSB, and the maximum power dissipation is 825 mW.
Feature Summary
- 12-bit resolution with SAR architecture
- Parallel data interface supporting up to 125 kS/s sampling
- Dual power supply operation (Analog: 4.5-5.5 V; Digital: 11.4-16.5 V)
- Integrated internal reference or external reference support
Applications
- Industrial process control systems
- Data acquisition modules
- High-resolution sensor interfaces
Procurement Notes
Verify the specific suffix 'J' for temperature range and performance grade against the official datasheet, as variations exist within the AD774B family. Confirm availability status directly with authorized distributors, as stock levels fluctuate. Ensure the procurement channel provides valid traceability documentation for quality assurance purposes.
Selection Notes
Select the AD774BJNZ when a 12-bit resolution and high-speed parallel interface are required for single-ended signals. Consider the specific digital supply voltage requirement (up to 16.5 V) compared to standard 5 V logic families. Evaluate the PDIP-28 package constraints if surface mount alternatives like the AD774BBRZ are not suitable for the mechanical design.
Part Context
The AD774BJNZ belongs to the AD774B series of monolithic 12-bit ADCs from Analog Devices. This series is characterized by its combination of speed and accuracy using SAR technology. The 'B' designation typically indicates a specific performance grade, while 'J' denotes the commercial temperature range variant. It serves as a bridge between lower-speed delta-sigma converters and higher-speed flash architectures.
Replacement Considerations
The AD774BBRZ offers identical electrical specifications but utilizes a surface-mount SOIC-28 package instead of the through-hole PDIP-28. Verify pin compatibility and thermal management requirements when substituting packages.
