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AD7983BRMZ
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Product Detailed Parameters
- Description：IC ADC 16BIT SAR 10MSOP
- Series：PulSAR®
- Mfr：Analog Devices Inc.
- Package：Tube
- Number of Bits：16
- Sampling Rate (Per Second)：1.33M
- Number of Inputs：1
- Input Type：Pseudo-Differential
- Data Interface：SPI, DSP
- Configuration：S/H-ADC
- Ratio - S/H:ADC：1:01
- Number of A/D Converters：1
- Architecture：SAR
- Reference Type：External
- Voltage - Supply, Analog：2.375V ~ 2.625V
- Voltage - Supply, Digital：2.375V ~ 2.625V
- Features：-
- Operating Temperature：-40°C ~ 85°C
- Package / Case：10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：10-MSOP
- Mounting Type：Surface Mount
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Overview
The AD7983BRMZ is a 16-bit, 1.33 MSPS PulSAR analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It features a successive approximation register architecture with pseudo-differential analog inputs ranging from 0 V to VREF. The device operates on a single 2.5 V supply and supports logic interfaces of 1.8 V, 2.5 V, 3 V, or 5 V via the VIO pin. Key performance metrics include a Signal-to-Noise Ratio (SNR) of 92 dB at 1 kHz input frequency, a Total Harmonic Distortion (THD) of -115 dB, and an Integral Nonlinearity (INL) of ±1.0 LSB maximum. Power consumption is 10.5 mW at full throughput and drops to 80 μW in standby mode. It is housed in a 10-lead MSOP package.
Feature Summary
- Zero latency architecture providing immediate data availability after conversion completion without pipeline delay.
- Versatile serial interface compatible with SPI, QSPI, Microwire, and DSP standards, supporting daisy-chaining capabilities.
- Low power dissipation scaling linearly with throughput, enabling extended battery life in portable applications.
- Proprietary busy indicator feature allowing efficient system synchronization during high-speed data acquisition.
Applications
- Automated test equipment
- Data acquisition systems
- Medical instruments
- Machine automation
Procurement Notes
Verify the specific ordering suffix against the manufacturer's current documentation to ensure correct packaging and temperature grade. Confirm that the required reference voltage range and logic levels match the system design constraints before finalizing procurement orders.
Selection Notes
Select this component for applications requiring high resolution and moderate speed with low power consumption. Ensure the external reference voltage falls within the specified 2.9 V to 5.1 V range. Verify that the host microcontroller supports the selected serial interface mode and timing requirements for the chosen VIO level.
Part Context
This part belongs to the AD7983 series of 16-bit PulSAR ADCs. It shares architectural similarities with other members of the family but offers specific throughput and resolution characteristics. It is designed to replace older generation SAR ADCs in space-constrained designs requiring precision.
Replacement Considerations
Check for pin-compatible alternatives such as the AD7982 if higher resolution is needed. Verify electrical compatibility with existing circuit designs when substituting with other devices in the AD798x family.
FAQ
What is the maximum reference voltage supported by the AD7983?
The reference voltage range is specified from 2.9 V to 5.1 V.
Does the AD7983 have a pipeline delay?
No, it features a zero latency architecture where conversion results are available immediately after the completed conversion.
How does the SDI pin affect the interface mode?
The SDI pin selects the interface mode during the CNV rising edge; a low state selects chain mode for daisy-chaining, while a high state selects CS mode.
