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AD7938BCP-6
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Product Detailed Parameters
- Description：IC ADC 12BIT 8CH 625KSPS 32LFCSP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tray
- Number of Bits：12
- Sampling Rate (Per Second)：625k
- 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
- Grade：-
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Overview
The AD7938BCP-6 is a 12-bit, high-speed successive approximation register (SAR) analog-to-digital converter manufactured by Analog Devices Inc. It features eight multiplexed analog input channels with an integrated channel sequencer and operates from a single 2.7 V to 5.25 V supply. The device achieves throughput rates up to 625 kSPS with low power consumption of 3.6 mW at 3 V and 7.5 mW at 5 V. It includes an accurate on-chip 2.5 V reference and supports single-ended, fully differential, or pseudo-differential inputs via software configuration. The parallel interface utilizes a VDRIVE pin for flexible logic level interfacing.
Feature Summary
- Eight analog input channels with a programmable channel sequencer for automated conversion sequences.
- Integrated precise 2.5 V internal voltage reference with low temperature coefficient.
- Software-selectable input configurations supporting single-ended, fully differential, and pseudo-differential modes.
- 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 battery-powered single-supply operation.
- Data acquisition modules in embedded systems interfacing with microprocessors or DSPs.
Procurement Notes
Verify the specific suffix 'CP' corresponds to the LFCSP package variant when sourcing components. Confirm that the 'B' grade designation meets the required operating temperature range specifications for the target application environment before finalizing procurement decisions.
Selection Notes
Select this component for applications requiring moderate resolution with multiple input channels and low power dissipation. Ensure the system clock frequency supports the maximum 625 kSPS throughput rate. Verify that the available analog input voltage ranges align with the selected reference voltage and input mode configuration.
Part Context
This part belongs to the AD7938-6 family of 12-bit SAR ADCs. It shares architectural similarities with the AD7938 but offers reduced speed compared to the 1.5 MSPS variants. The device is designed for cost-sensitive applications needing efficient multi-channel sampling without pipeline latency.
Replacement Considerations
AD7938BSUZ
