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Product Detailed Parameters
- Description：IC MUX 20PLCC
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Switch Circuit：-
- Multiplexer/Demultiplexer Circuit：-
- On-State Resistance (Max)：-
- Channel-to-Channel Matching (ΔRon)：-
- Voltage - Supply, Single (V+)：-
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：-
- -3db Bandwidth：-
- Charge Injection：-
- Channel Capacitance (CS(off), CD(off))：-
- Current - Leakage (IS(off)) (Max)：-
- Crosstalk：-
- Operating Temperature：-
- Mounting Type：Surface Mount
- Package / Case：20-LCC (J-Lead)
- Supplier Device Package：20-PLCC (9x9)
- Number of Circuits：-
Download product information
Overview
The AD7705 is a low power, 16-bit Sigma-Delta analog-to-digital converter (ADC) from Analog Devices. It operates on a single 3V or 5V supply with a typical power consumption of 1mW. The device features two differential input channels or three single-ended inputs, making it suitable for precision measurement applications. It integrates programmable gain amplifiers and a high-performance clock system.
Feature Summary
- Integrated Sigma-Delta modulation with 16-bit resolution
- On-chip programmable gain amplifier
- Low power consumption suitable for battery operation
- Digital filter with selectable update rates
Applications
- Industrial process control systems
- Weight scales and load cell measurements
- Portable instrumentation devices
- Medical equipment signal acquisition
Procurement Notes
Verify the specific suffix codes against official Analog Devices documentation to confirm package type and temperature range. Ensure compatibility with existing SPI interface timing requirements. Confirm RoHS compliance status for the specific revision being procured.
Selection Notes
Select this component when high resolution and low noise are required for slow-moving signals. Compare channel count requirements against the AD7706 variant if additional inputs are needed. Evaluate power constraints to ensure the 1mW operating current fits the system budget.
Part Context
This part belongs to the AD770x family of low-power, 16-bit ADCs designed for precision data acquisition. It serves as a direct replacement for older generation converters in industrial and medical applications requiring high accuracy and low power dissipation.
Replacement Considerations
Publicly documented compatible alternatives include the MS7705 from Richwave Technology. Verify pinout and register compatibility before substitution to ensure seamless integration into existing designs.
