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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 AD974AN is a four-channel, 16-bit data acquisition system operating at 200 kSPS throughput. Fabricated on BiCMOS process, it integrates a 4-to-1 multiplexer, high-speed ADC, and +2.5 V reference. It functions from a single +5 V supply with power-down mode reducing dissipation to 50 mW. Input ranges include –10 V, 0 V to +4 V, and 0 V to +5 V. The device features serial interface with internal or external clock options. A Grade B variant offers improved linearity (–2.0 LSB INL) and S/(N+D) of 85 dB. Package: 28-Lead Plastic DIP.
Feature Summary
- Four single-ended analog input channels with integrated 4-to-1 multiplexer
- 16-bit resolution with 200 kSPS throughput rate
- Single +5 V supply operation with 120 mW active / 50 mW power-down dissipation
- Supports –10 V, 0 V to +4 V, and 0 V to +5 V input ranges via pin configuration
Applications
- Industrial process control systems requiring multi-channel signal acquisition
- Data logging applications with moderate speed and high resolution needs
- Test and measurement equipment utilizing serial interface for microcontroller integration
Procurement Notes
Verify the specific grade (A or B) required for linearity and dynamic range specifications. Confirm package type matches design constraints, as AD974AN denotes 28-lead PDIP. Ensure supply voltage stability within +4.75 V to +5.25 V for specified performance. Check thermal dissipation limits in free air conditions for the DIP package.
Selection Notes
Select AD974AN for applications needing 16-bit accuracy at low speeds. Choose B-grade version if stricter linearity (–2.0 LSB INL) and higher SNR (85 dB) are required. Consider SSOP or SOIC variants if surface mount technology is preferred over through-hole DIP packaging.
Part Context
Part of Analog Devices' AD974 family of data acquisition systems. Includes variants like AD974AR (SOIC) and AD974ARS (SSOP). Shares functional block diagram and core specifications across packages, differing primarily in physical form factor and thermal characteristics.
Replacement Considerations
Direct pin-compatible replacements within the same family include AD974BN (B-grade DIP), AD974AR (A-grade SOIC), and AD974BR (B-grade SOIC). Cross-package substitution requires verifying footprint compatibility and thermal management requirements.
