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AD7895AR-2REEL
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Product Detailed Parameters
- Description：IC ADC 12BIT SRL 5V 8-SOIC
- Series：-
- Mfr：Analog Devices Inc.
- Package：Bulk
- Number of Bits：12
- Sampling Rate (Per Second)：192k
- 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
- Grade：-
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Overview
The AD7895AR-2REEL is a 12-bit successive approximation analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates from a single +5 V supply and features an input voltage range of 0 V to +2.5 V. The device integrates a track/hold amplifier, on-chip clock, and serial interface within an 8-pin SOIC package. Key electrical specifications include a maximum conversion time of 3.8 μs in high sampling mode and a typical power dissipation of 16 mW. It provides a signal-to-noise ratio of 70 dB and maintains linearity errors within ±1 LSB.
Feature Summary
- Integrates a 12-bit SAR ADC with an on-chip track/hold amplifier and internal clock oscillator.
- Features a high-speed two-wire serial interface for simplified microcontroller connectivity.
- Supports automatic power-down mode to minimize energy consumption during idle periods.
Applications
- Battery-powered portable instrumentation systems
- Industrial process control data acquisition
- Portable medical devices requiring low power consumption
Procurement Notes
Verify the specific suffix REEL indicates tape-and-reel packaging when sourcing components. Confirm that the -2 designation corresponds to the 0 V to +2.5 V unipolar input range required for the application. Ensure the operating temperature range aligns with the commercial grade specification of -40 °C to +85 °C.
Selection Notes
Select this component when a compact 8-pin solution is required for 12-bit resolution applications. The AD7895AR-2REEL is suitable for designs needing a single +5 V supply and a unipolar input range up to 2.5 V. Consider the 3.8 μs conversion speed and 192 kHz throughput rate for moderate-speed data acquisition tasks.
Part Context
This part belongs to the AD7895 family of fast 12-bit ADCs. The AR variant denotes the small outline IC (SOIC) package option. The -2 suffix specifies the unipolar input configuration, distinguishing it from bipolar versions like the AD7895-10 or AD7895-3. The REEL suffix typically indicates bulk tape-and-reel shipping format.
Replacement Considerations
The AD7895BR-2REEL offers the same functionality with potentially tighter linearity specifications. For pin-compatible upgrades requiring higher resolution, the AD7894 series may be considered if system constraints allow.
