AD7400AYRWZ

• Product introduction

AD7400AYRWZ isolated sigma-delta modulator

The AD7400 is a second-order sigma-delta modulator that uses on-chip digital isolation from Analog Devices, Inc., iCoupler®, to convert analog input signals to a high speed, 1-bit data stream. The AD7400 operates from a 5 V supply and can input a differential signal of ± 200 mV (320 mV full-scale± 320 mV).Analog modulatorThe input signal is continuously sampled, eliminating the need for an external sample-and-hold circuitry. The input information is contained in an output stream with a data rate of 10 MHz, and the original information can be reconstructed with appropriate digital filters. Serial I/O can operate from a 5 V or 3 V supply (V_DD2 )。

The serial interface is digitally isolated. By combining a high-speed CMOS process with monolithic air-core transformer technology, on-chip isolation provides superior operating characteristics compared to other devices such as traditional optocouplers. The device has an on-chip reference. The AD7400 is available in a 16-lead SOIC package and operates over the −40°C to +105°C temperature range.

We also offer the AD7401, a product with an external clock.

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--AC motor control
--Data acquisition system
--A solution that can replace ADC plus optical isolator

• 10 MHz clock rate
• Second-order modulator
• 16-bit no missing codes
• INL is typically ±2 LSB at 16 bits

• The maximum offset drift is 3.5 μV/°C
• On-chip digital isolator
• On-chip reference
• Low power operation: 18 mA maximum (5.25 V)
• Operating temperature range: -40°C to +105°C
• 16-pin SOIC package
• For more features, please refer to the data sheet

Temperature sensor