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AD7827BNZ
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Product Detailed Parameters
- Description：IC ADC 8BIT SAMPLING SRL 8DIP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Number of Bits：8
- Sampling Rate (Per Second)：1M
- 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 ~ 105°C
- Package / Case：8-DIP (0.300", 7.62mm)
- Supplier Device Package：8-PDIP
- Mounting Type：Through Hole
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Overview
The AD7827BNZ is an 8-bit, single-channel analog-to-digital converter (ADC) featuring a half-flash architecture and a maximum throughput of 1 MSPS. It operates from a single 3 V or 5 V supply with an input range of 0 V to 2 V or 0 V to 2.5 V, respectively. The device integrates a track-and-hold amplifier, a 2.5 V reference with 2% tolerance, and a serial interface compatible with DSPs. Key electrical parameters include a conversion time of 420 ns, acquisition time of 200 ns, SNR of 48 dB min, INL/DNL of ±0.5 LSB max, and power dissipation of 30 mW max at 3 V.
Feature Summary
- Integrates a track-and-hold amplifier for precise signal sampling.
- Features automatic power-down functionality controlled by the CONVST pin state.
- Includes an on-chip 2.5 V voltage reference with 2% tolerance.
- Utilizes a three-wire serial interface optimized for direct DSP connection.
Applications
- High-speed data acquisition systems requiring low power consumption.
- Digital signal processing (DSP) applications with serial interface compatibility.
- Subsampling applications utilizing high input frequency capabilities.
Procurement Notes
Verify the specific ordering suffix 'BNZ' corresponds to the plastic DIP package variant when sourcing. Confirm that the component meets RoHS compliance requirements if applicable to your manufacturing standards. Ensure the supplier provides valid traceability documentation for quality assurance purposes.
Selection Notes
Select this component for applications requiring an 8-bit resolution with 1 MSPS throughput. Consider the integrated 2.5 V reference if external reference circuitry is undesirable. Evaluate the power consumption trade-offs between continuous sampling mode and automatic power-down mode based on system duty cycles.
Part Context
The AD7827 belongs to Analog Devices' family of low-power, high-speed ADCs. It utilizes a half-flash architecture to achieve 8-bit resolution efficiently. The BNZ suffix indicates the specific plastic dual-in-line package configuration suitable for through-hole mounting in industrial environments.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout and electrical specifications carefully when considering alternative components from other manufacturers.
