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AD421BRZRL Digital Integrated Circuit IC Chip 16bit Loop Powered Dac Converter

Shenzhen Retechip Electronics Co., Ltd

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Contact name:Allen Wang

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AD421BRZRL Digital Integrated Circuit IC Chip 16bit Loop Powered Dac Converter

Country/Region china
City & Province shenzhen guangdong
Categories Inverters & Converters
InquireNow

Product Details

AD421BRZRL Digital Integrated Circuit 16bit Loop Powered 4 Ma To 20 Ma Dac Converter,Loop-Powered 4 mA to 20 mA DAC​

 

Applications 

 

• Industrial automation

• Motor control

• Power supplies

• Solar inverters

• Medical equipment

 

Specifications

 

Product AttributeAttribute Value
Analog Devices Inc.
Product Category:Digital to Analog Converters - DAC
AD421
16 bit
1 Channel
8 ms
Current
3-Wire
2.95 V to 5.05 V
2.95 V to 5.05 V
- 40 C
+ 85 C
SOIC-16
Reel
INL - Integral Nonlinearity:+/- 0.01 % FSR
Number of Converters:1 Converter
Pd - Power Dissipation:1.95 mW
Shutdown:No Shutdown
Subcategory:Data Converter ICs
Supply Voltage - Max:5.05 V
Supply Voltage - Min:2.95 V

 

 

Description 

 

The AD421 is a complete, loop-powered, digital to 4 mA to 20 mA converter, designed to meet the needs of smart transmitter manufacturers in the Industrial Control industry. It provides a high precision, fully integrated, low cost solution in a compact 16-lead package.

 

The AD421 is ideal for extending the resolution of smart 4 mA to 20 mA transmitters at very low cost. The AD421 includes a selectable regulator that is used to power itself and other devices in the transmitter. This regulator provides either a +5 V, +3.3 V or +3 V regulated output voltage. The part also contains +1.25 V and +2.5 V precision references.

 

The AD421 thus eliminates the need for a discrete regulator and voltage reference. The only external components required are a number of passive components and a pass transistor to span large loop voltages.

 

The AD421 can be used with standard HART FSK protocol communication circuitry without any degradation in specified performance. The high speed serial interface is capable of operating at 10 Mbps and allows for simple connection to commonly-used microprocessors and microcontrollers via a standard three-wire serial interface.

 

 

Features

 

1. The AD421 is a single chip, high performance, low cost solution for generating 4 mA to 20 mA signals for smart industrial control transmitters.

2. The AD421’s regulated supply voltage can be used to power any additional circuits in the transmitter. The regulated output value is pin selectable as either +3 V, +3.3 V or +5 V.

3. The AD421’s on-chip references can provide a precision reference voltage to other devices in the system. This reference voltage can be either +1.25 V or +2.5 V.

4. The AD421 is fully compatible with standard HART circuitry or other similar FSK protocols.

5. With the addition of a single discrete transistor, the AD421 can be operated from VCC + 2 V min to a maximum of the breakdown voltage of the pass transistor.

6. The AD421 converts the digital data to current with 16-bit resolution and monotonicity. Full-scale settling time to ±0.1% typically occurs within 8 ms.

7. The AD421 features a programmable alarm current capability that allows the transmitter to send out of range currents to indicate a transducer fault

 

Trading Guides

                                                                             

ShippingDelivery period

 

 For in-stock parts, orders are estimated to ship out in 3 days.
 Once shipped, estimated delivery time depends on the below   carriers you chose:
 DHL Express, 3-7 business days.
 DHL eCommerce,12-22 business days.
 FedEx International Priority, 3-7 business days
 EMS, 10-15 business days.
 Registered Air Mail, 15-30 business days.

 

Shipping rates

 

 After confirming the order, we will evaluate the shipping cost   based on the weight of the goods

 

Shipping option

 

 We provide DHL, FedEx, EMS, SF Express, and Registered     Air Mail international shipping.

 

Shipping tracking

 

 We will notify you by email with tracking number once order   is shipped.

 

Returning

warranty

Returning

 

 Returns are normally accepted when completed within 30   days from date of shipment.Parts should be unused and in   original packaging.Customer has to take charge for the   shipping.

 

Warranty

 

 All Retechip purchases come with a 30-day money-back   return policy, This warranty shall not apply to any item where   defects have been caused by improper customer assembly,   failure by customer to follow instructions, product   modification, negligent or improper operation

 

Ordering

 

Payment

 

 

 T/T,PayPal, Credit Card includes Visa, Master, American   Express.

 

 

 

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