AD421BRZRL7 ,DA Converter, AD Converter IC - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

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158 points

Part No

AD421BRZRL7
Manufacturer

ADI
ChipWorker Part#

CW10142500
Category

DA Converter, AD Converter IC
Package

SOIC-16
Description

DAC 1CH Delta-Sigma 16Bit 16Pin SOIC W T/R
Documentation

Datasheet
Ships from

Moscow
Наличие

In Stock
Estimated Price

$ 7.77

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AD421BRZRL7 Specifications

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Attribute	Attribute Value

Part Number	AD421BRZRL7
Manufacturer	ADI
ChipWorker Part#	CW10142500
Category	DA Converter, AD Converter IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	16 Pin
Case/Package	SOIC-16
Number of Outputs	1 Output
Number of Channels	1 Channel
Number of Bits	16 Bit
Power Dissipation	0.45 W
Resolution (Bits)	16.0 Bit
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Power Dissipation (Max)	450 mW
Supply Voltage	3V,3.3V,5V
	expand all
Size-Height	2.35 mm
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
Mil-Spec	No
ECCN Code	EAR99

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Product Description

Product Details
The AD421 is a complete, loop-powered, digital to 4-20 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-pin package. The AD421 is ideal for extending the resolution of smart 4-20 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.
The sigma-delta architecture of the DAC guarantees 16-bit monotonicity while the integral nonlinearity for the AD421 is ±0.01%. The part provides a zero scale 4 mA output current with ±0.1% offset error and a 20 mA full-scale output current with ±0.2% gain error.
The AD421 is available in a 16-pin, 0.3 inch-wide, plastic DIP and a 16-lead, 0.3 inch-wide, SOIC package. The part is specified over the industrial temperature range of -40°C to +85°C.
### Features and Benefits
4mA to 20 mA Current Output
HART@ Compatible
16-Bit Resolution and Monotonicity
±0.01% Integral Nonlinearity
5 V or 3 V Regulator Output
2.5 V and 1.25 V Precision Reference
750 µA Quiescent Current max
Programmable Alarm Current Capability
Flexible High Speed Serial Interface
16-Lead SOIC and PDIP Packages

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