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AD7853BN
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Product Detailed Parameters
- Description：IC ADC 12BIT SRL 200KSPS 24-DIP
- Series：*
- Mfr：Analog Devices Inc.
- Package：Tube
- Number of Bits：12
- Sampling Rate (Per Second)：-
- Number of Inputs：-
- Input Type：-
- Data Interface：-
- Configuration：-
- Ratio - S/H:ADC：-
- Number of A/D Converters：-
- Architecture：-
- Reference Type：-
- Voltage - Supply, Analog：-
- Voltage - Supply, Digital：-
- Features：-
- Operating Temperature：-
- Package / Case：24-DIP (0.300", 7.62mm)
- Supplier Device Package：24-PDIP
- Mounting Type：Through Hole
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Overview
The AD7853BN is a high-speed, low-power, 12-bit analog-to-digital converter (ADC) from Analog Devices. It operates from a single 3 V to 5.5 V power supply and supports a throughput rate of 200 kSPS. The device features a pseudo-differential sampling scheme with a track-and-hold acquisition time of 400 ns. It includes system and self-calibration options with autocalibration on power-up. Power consumption is typically 20 mW at 5 V and 12 mW at 3 V in normal mode, dropping to 25 µW after conversion. The ADC provides flexible serial interface compatibility with SPI, QSPI, 8051, and microprocessor systems.
Feature Summary
- Integrated self-calibration and system calibration with automatic power-up initialization
- Flexible serial interface supporting multiple communication protocols including SPI and QSPI
- Low power architecture with automatic power-down capabilities after conversion
- Pseudo-differential input configuration allowing versatile signal range selection
Applications
- Battery-powered personal digital assistants and mobile communications devices
- Medical instrumentation requiring precise data acquisition
- Pen computers and handheld control systems
- High-speed modem applications
Procurement Notes
Verify the specific grade suffix 'BN' against the manufacturer's ordering guide to confirm linearity error specifications and package type. Ensure that the required operating temperature range aligns with the component's rated commercial or industrial limits. Confirm pinout compatibility for the 24-lead plastic DIP package before integration into existing designs.
Selection Notes
Select the AD7853BN when a 200 kSPS sampling rate is required alongside low power consumption. Consider this part over the AD7853L variant if higher speed is prioritized over minimal power usage. Verify that the system can accommodate the 24-lead DIP package dimensions and that the serial interface timing requirements match the host controller capabilities.
Part Context
The AD7853 series consists of two main variants: the standard AD7853 optimized for speed and the AD7853L optimized for lower power consumption. Both share identical architectural features but differ in maximum throughput rates and power dissipation characteristics. The AD7853BN represents the B-grade version of the standard speed variant housed in a plastic DIP package.
Replacement Considerations
The AD7853AN serves as a direct functional replacement within the same family, differing primarily in linearity error specifications rather than core performance metrics.
