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AD7938BCP-REEL7
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Product Detailed Parameters
- Description：IC ADC 12BIT 8CH 1.5MSPS 32LFCSP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Bulk
- Number of Bits：12
- Sampling Rate (Per Second)：1.5M
- Number of Inputs：-
- Input Type：-
- Data Interface：Parallel
- Configuration：-
- Ratio - S/H:ADC：-
- Number of A/D Converters：1
- Architecture：-
- Reference Type：-
- Voltage - Supply, Analog：-
- Voltage - Supply, Digital：-
- Features：-
- Operating Temperature：-40°C ~ 85°C
- Package / Case：32-VFQFN Exposed Pad, CSP
- Supplier Device Package：32-LFCSP-VQ (5x5)
- Mounting Type：Surface Mount
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Overview
The AD7938BCP-REEL7 is a high-speed, low-power 12-bit successive approximation register (SAR) analog-to-digital converter manufactured by Analog Devices Inc. It features eight analog input channels with an integrated channel sequencer and operates from a single 2.7 V to 5.25 V power supply. The device achieves throughput rates up to 1.5 MSPS with a maximum power consumption of 6 mW at 3 V supplies. It includes an accurate on-chip 2.5 V reference and supports software-configurable single-ended, fully differential, or pseudo-differential inputs. The component utilizes a high-speed parallel interface with word/byte modes and is housed in a 32-lead LFCSP package.
Feature Summary
- Eight analog input channels with a programmable channel sequencer for sequential conversion.
- Software-selectable analog input configurations including single-ended, fully differential, and pseudo-differential modes.
- Integrated precise 2.5 V internal voltage reference with external overdrive capability.
- VDRIVE function enabling direct connection to 3 V or 5 V processor systems independent of the main supply.
Applications
- Industrial process control systems requiring multi-channel data acquisition.
- Portable instrumentation utilizing single-supply operation.
- Data acquisition modules interfacing with microprocessors via parallel interfaces.
Procurement Notes
Verify the specific ordering suffix against official documentation to confirm package type and reel specifications. Ensure compatibility with system voltage requirements and thermal constraints before integration. Confirm that the component meets all necessary environmental standards for the intended deployment environment.
Selection Notes
Select this component when high throughput and low power consumption are critical for multi-channel applications. Consider the available input configurations and the necessity for an internal reference. Evaluate the parallel interface requirements against the host processor capabilities to ensure seamless integration.
Part Context
This part belongs to the AD7938/AD7939 family of 12-bit and 10-bit parallel ADCs. It shares functional similarities with other members like the AD7938-6 but offers higher speed performance. The family is designed for applications requiring flexible input configurations and efficient power management.
Replacement Considerations
The AD7938BSUZ is a pin-compatible alternative in a TQFP package. Verify electrical specifications and package dimensions before substitution. Ensure that any replacement maintains the required throughput rate and input configuration flexibility.
