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Product Detailed Parameters
- Description：IC DAS 16BIT 200K 28DIP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube,Tube
- Type：Data Acquisition System (DAS)
- Number of Channels：4
- Resolution (Bits)：16 b
- Sampling Rate (Per Second)：200k
- Data Interface：Serial
- Voltage Supply Source：Analog and Digital
- Voltage - Supply：4.75V ~ 5.25V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Through Hole
- Package / Case：28-DIP (0.600", 15.24mm)
- Supplier Device Package：28-PDIP
- Grade：-
- Qualification：-
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Overview
The AD974BN is a four-channel, 16-bit data acquisition system operating from a single +5 V supply. It integrates a 200 kSPS sampling ADC, a 4-to-1 multiplexer, and a +2.5 V reference on a single chip. The device supports analog input ranges of –10 V to +10 V, 0 V to +4 V, and 0 V to +5 V. It features a serial interface for efficient data transfer with low interconnect requirements. Power consumption is 120 mW in active mode and 50 mW in power-down mode. The component is housed in a 28-lead plastic DIP package.
Feature Summary
- Four single-ended analog input channels with integrated multiplexer
- 16-bit resolution with 200 kSPS throughput rate
- Single +5 V supply operation with power-down mode
- Supports internal or external 2.5 V reference selection
Applications
- Industrial process control systems
- Data logging applications
- Test and measurement equipment
Procurement Notes
Verify the specific grade (A or B) required for linearity and dynamic range specifications. Confirm the package type matches the design footprint, as the AD974 family includes SOIC and SSOP variants alongside the DIP option. Ensure the ordering suffix corresponds to the desired temperature range and packaging format.
Selection Notes
Select the AD974BN for applications requiring four isolated analog inputs with high DC accuracy. The A Grade offers 83 dB S/(N+D), while the B Grade provides 85 dB. Consider the internal reference capability to reduce external component count. Verify that the serial interface timing aligns with the host microcontroller's capabilities.
Part Context
The AD974BN belongs to the AD974 family of data acquisition systems manufactured by Analog Devices. This series combines multiplexing, analog-to-digital conversion, and reference voltage generation into a single monolithic BiCMOS device. The part is designed for cost-sensitive applications requiring moderate speed and high resolution.
Replacement Considerations
Direct pin-compatible replacements within the same family include the AD974AN (A Grade DIP) and AD974BR (B Grade SOIC). Cross-family replacements require verification of pinout compatibility and electrical parameter alignment.
