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AD7920BKS-REEL7
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Product Detailed Parameters
- Description：IC ADC 12BIT SRL 250KSPS SC70-6
- Series：-
- Mfr：Analog Devices Inc.
- Package：Bulk
- Number of Bits：12
- Sampling Rate (Per Second)：250k
- Number of Inputs：-
- Input Type：-
- Data Interface：SPI, DSP
- 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：6-TSSOP, SC-88, SOT-363
- Supplier Device Package：SC-70-6
- Mounting Type：Surface Mount
- Grade：-
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Overview
The AD7920BKS-REEL7 is a 12-bit successive approximation analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates from a single 2.35 V to 5.25 V supply and supports throughput rates up to 250 kSPS. The device features an internal track-and-hold amplifier capable of handling input frequencies exceeding 13 MHz. Power consumption is typically 3.6 mW at 250 kSPS with a 3 V supply, or 12.5 mW with a 5 V supply. The part utilizes a flexible serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards. It includes a power-down mode with maximum current consumption of 1 μA.
Feature Summary
- Integrated track-and-hold amplifier for high-speed signal acquisition
- Flexible serial clock speed management for optimized power efficiency
- Internal reference derived directly from the power supply voltage
- Zero pipeline delay architecture for immediate data availability
Applications
- Battery-powered systems
- Medical instruments
- Data acquisition systems
- Instrumentation and control systems
Procurement Notes
Verify the specific grade (A or B) required for your application, as specifications such as integral nonlinearity and offset error differ between grades. Confirm that the SC70 package matches your PCB footprint requirements. Ensure the ordering suffix corresponds to the reel packaging format indicated in the datasheet ordering guide.
Selection Notes
Select this component when a compact 12-bit ADC with low power consumption is needed. The AD7920 is suitable for applications requiring a wide dynamic input range relative to the supply voltage. Consider the AD7910 if 10-bit resolution is sufficient for lower cost or performance needs.
Part Context
This component belongs to the AD7910/AD7920 family of micropower, high-speed ADCs. The family shares identical pinouts and functional blocks, differing primarily in resolution and accuracy grades. The AD7920 provides 12-bit resolution, while the AD7910 offers 10-bit resolution within the same small packages.
Replacement Considerations
The AD7910 is a compatible alternative if 10-bit resolution meets system requirements. Other members of the AD79xx series may offer different channel counts or interfaces but require schematic and software verification.
