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AD7893BR-5REEL7
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Product Detailed Parameters
- Description：IC ADC 12BIT SRL T/H LP 8-SOIC
- Series：-
- Mfr：Analog Devices Inc.
- Package：Bulk
- Number of Bits：12
- Sampling Rate (Per Second)：117k
- Number of Inputs：-
- Input Type：-
- Data Interface：-
- 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：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Mounting Type：Surface Mount
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Overview
The AD7893BR-5REEL7 is a 12-bit successive approximation register (SAR) analog-to-digital converter manufactured by Analog Devices Inc. It operates from a single +5 V supply and features an on-chip track/hold amplifier with a conversion time of 6 μs and a throughput rate up to 117 kHz. The device accepts a unipolar input voltage range of 0 V to +5 V and utilizes a high-speed two-wire serial interface for data output. It is housed in an 8-pin SOIC package, consumes typically 25 mW, and supports an operating temperature range of -40 °C to +85 °C.
Feature Summary
- Integrated signal scaling circuitry allows direct interfacing with ±10 V, ±2.5 V, 0 V to +5 V, or 0 V to +2.5 V analog inputs without external components.
- On-chip track/hold amplifier ensures accurate digitization of full-scale sine waves at maximum sampling rates.
- High-speed serial interface requires only two wires (SCLK and SDATA), simplifying connections to microcontrollers and DSPs.
Applications
- Battery-powered portable instrumentation due to low power consumption and single-supply operation.
- Industrial process control systems requiring isolated or remote sensor signal acquisition.
- Data acquisition modules in automated test equipment.
Procurement Notes
Verify the specific suffix 'REEL7' indicates tape-and-reel packaging when sourcing this component. Confirm that the 'B' grade designation corresponds to the required linearity accuracy and SNR specifications for your application. Ensure the ordering documentation explicitly references the AD7893BR-5 variant to guarantee the correct 0 V to +5 V input range and SOIC package type.
Selection Notes
Select the AD7893BR-5 variant specifically for applications requiring a 0 V to +5 V unipolar input range. The 'B' suffix denotes tighter linearity specifications compared to the 'A' version. Consider the 8-pin SOIC package for surface-mount assembly constraints. Verify that the system timing allows for the required 6 μs conversion time plus read overhead to maintain specified dynamic performance.
Part Context
The AD7893 series represents a family of fast, 12-bit ADCs fabricated using Analog Devices' LC2MOS process. This technology combines precision bipolar circuits with low-power CMOS logic. The BR-5 variant is part of the commercial temperature range lineup, offering a balance of speed, accuracy, and power efficiency within a compact 8-pin footprint suitable for space-constrained designs.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative SAR ADCs based on pin compatibility, input range matching, and serial interface protocol if cross-referencing is required.
