Datasheet for AD5421BREZ:
- Manufacturer Part Number : AD5421BREZ
- Manufacturer : AD
- Description : 16-Bit, Serial Input, Loop-Powered, 4mA to 20mA DAC IC
- Series : AD5421
- Reference Price : USD 4.44
- Our Price : We have a better price, contact us by email
- Product Type : 4-20mA
- Function : 4-20mA Current Loop D/A Converters
- Current Suggest : Recommended for New Designs
- Status : Production
- ROHS Status : ROHS Compliant (Lead Free)
- Package Type : 28-Lead TSSOP w/ EP
- Pins : 28
- MFG Package Case : RE-28-2
- Part Type : OTH
- Standard Packing Type : Tube
- Standard Packing Quantity : 50
- Working Temperature : -40 to 105C
- Other Part Number : AD5421BREZ
- 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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- 16-bit resolution and monotonicity
- Pin selectable NAMUR-compliant ranges
- 4 mA to 20 mA
- 3.8 mA to 21 mA
- 3.2 mA to 24 mA
- NAMUR-compliant alarm currents
- Downscale alarm current = 3.2 mA
- Upscale alarm current = 22.8 mA/24 mA
- Total unadjusted error (TUE): 0.05% maximum
- INL error: 0.0035% FSR maximum
- Output TC: 3 ppm/°C typical
- Quiescent current: 300 μA maximum
- Flexible SPI-compatible serial digital interface with Schmitt triggered inputs
- On-chip fault alerts via FAULT pin or alarm current
- Automatic readback of fault register on each write cycle
- Slew rate control function
- Gain and offset adjust registers
- On-chip reference TC: 4 ppm/°C maximum
- Selectable regulated voltage output
- Loop voltage range: 5.5 V to 52 V
- Temperature range: −40°C to +105°C
- TSSOP and LFCSP packages
The AD5421 is a complete, loop-powered, 4 mA to 20 mAdigital-to-analog converter (DAC) designed to meet the needsof smart transmitter manufacturers in the industrial controlindustry. The DAC provides a high precision, fully integrated,low cost solution in compact TSSOP and LFCSP packages.
The AD5421 includes a regulated voltage output that is used topower itself and other devices in the transmitter. This regulatorprovides a regulated 1.8 V to 12 V output voltage. The AD5421also contains 1.22 V and 2.5 V references, thus eliminating theneed for a discrete regulator and voltage reference.
The AD5421 can be used with standard Highway AddressableRemote Transducer (HART®) FSK protocol communicationcircuitry without any degradation in specified performance. Thehigh speed serial interface is capable of operating at 30 MHz andallows for simple connection to commonly used microprocessorsand microcontrollers via a SPI-compatible, 3-wire interface.
The AD5421 is guaranteed monotonic to 16 bits. It provides0.0015% integral nonlinearity, 0.0012% offset error, and0.0006% gain error under typical conditions.
The AD5421 is available in a 28-lead TSSOP and a 32-lead LFCSPspecified over the extended industrial temperature range of−40°C to +105°C.
Applications
- Industrial Process Control
- 4 mA to 20 mA loop-powered transmitters
- Smart transmitters
- HART network connectivity
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
