- Manufacturer Part Number : AD7400
- Manufacturer : AD
- Description : Isolated Sigma-Delta Modulator
- Series : AD7400
- Reference Price : USD 2.592
- Our Price : We have a better price, contact us by email
- Product Type : Integrated/Special Purpose A/D Converters
- Function : Isolated A/D Converters
- Current Suggest : Production
- Status : Production
- RoHS Status: -
- Voltage: -
- Feature: -
- Package Case: -
- Temperature Range: -
- Packing: Reel/Tray/Tube
- Standard Packing Quantity: -
- Country of Origin: -
- Other Part Number : AD7400
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
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- 10 MHz clock rate
- Second-order modulator
- 16 bits no missing codes
- ±2 LSB INL typical at 16 bits
- 3.5 μV/°C maximum offset drift
- On-board digital isolator
- On-board reference
- Low power operation: 18 mA maximum at 5.25 V
- −40°C to +105°C operating range
- 16-lead SOIC package
- See attached Data Sheet for more Features.
The AD7400 is a second-order, sigma-delta (Σ-Δ) modulator that converts an analog input signal to a high speed, 1-bit data stream with on-chip digital isolation based on Analog Devices, Inc. iCoupler® technology. The AD7400 operates from a 5 V power supply and accepts a differential input signal of ±200 mV (±320 mV full scale). The analog input is continuously sampled by the analog modulator, eliminating the need for external sample-and-hold circuitry. The input information is contained in the output stream as a density of ones with a data rate of 10 MHz. The original information can be reconstructed with an appropriate digital filter. The serial I/O can use a 5 V or a 3 V supply (VDD2).
The serial interface is digitally isolated. High speed CMOS, combined with monolithic air core transformer technology, means the on-chip isolation provides outstanding performance characteristics superior to alternatives such as optocoupler devices. The part contains an on-chip reference. The AD7400 is offered in a 16-lead SOIC and has an operating temperature range of −40°C to +105°C.
An external clock version, AD7401, is also available.
Applications
- AC motor controls
- Data acquisition systems
- A/D + opto-isolator replacements
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.