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AD421BNZ The AD421BNZ is a 16-bit, loop-powered 4-20 mA digital-to-analog converter from Analog Devices. It features a single supply, serial interface, and on-chip references.
Mfr Part #:

AD421BNZ

Available from 2 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The AD421BNZ is a 16-bit, loop-powered 4-20 mA digital-to-analog converter from Analog Devices. It features a single supply, serial interface, and on-chip references.
✓ Total Stock: 4,003 pcs

AD421BNZ Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Optech Co.,Limited ✓
Non-Authorised Inventory information
2,003 pcs
On Request
2003 pcs On Request 1 On Request On Request 24+ On Request On Request
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
2,000 pcs
On Request
2000 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

AD421BNZ Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Data Interface
Lead Spacing
Lead Style
Mounting Type
Number of Channels
Operating Temperature
Output Type
Quiescent Current
Resolution (Bits)
SVHC Present
Settling Time
Supplier Device Package
Supplier Package
Type
Voltage
Voltage Supply Source
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AD421BNZ Description

Short technical summary and product information.

The AD421BNZ is a 16-bit, loop-powered digital-to-analog converter (DAC) designed to produce 4 mA to 20 mA output signals for industrial control transmitters. It is manufactured by Analog Devices and packaged in a through-hole 16-DIP (0.300", 7.62mm) package, also known as 16-PDIP.

 

Key electrical specifications include 16-bit resolution and monotonicity, typical integral nonlinearity (INL) of 0.01%, and a typical full-scale settling time of 8 ms to ±0.1%. The device operates from a single supply and features a pin-selectable regulated output voltage of 3 V, 3.3 V, or 5 V to power additional circuitry. On-chip precision references provide 1.25 V and 2.5 V outputs. The quiescent current is 750 µA maximum.

 

The AD421BNZ uses a MICROWIRE serial interface and is fully compatible with HART® circuitry. It is designed for loop-powered smart transmitters and can be used with an external pass transistor to operate from a wider supply voltage range. The operating temperature range is -40°C to 85°C.

AD421BNZ Quick Information

Product Type: 4-20 mA DAC
Series: AD421
Canonical Name: AD421BNZ - 16-Bit, Loop-Powered 4-20 mA DAC
Subcategory: 4-20 mA DAC

AD421BNZ Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Yes

AD421BNZ Features

  • 16-bit resolution with 0.01% INL typical.
  • Loop-powered 4 mA to 20 mA current output.
  • On-chip 2.5 V and 1.25 V precision references.
  • Pin-selectable 3 V, 3.3 V, or 5 V regulator output.
  • MICROWIRE serial interface with HART compatibility.

AD421BNZ Applications

  • Used in smart industrial control transmitters.
  • Ideal for 4-20 mA loop-powered systems.
  • Suitable for HART-compatible field instruments.
  • Designed for precision analog output modules.
  • Applicable in process control automation.

AD421BNZ FAQs

7 frequently asked questions generated from this part’s specifications.
What is the resolution of the AD421BNZ?

The AD421BNZ has a 16-bit resolution.

How many channels does the AD421BNZ have?

It has a single channel (1).

What is the output type of the AD421BNZ?

The output is 4 mA to 20 mA current.

What is the settling time of the AD421BNZ?

Typical settling time to ±0.1% is 8 ms.

What is the integral nonlinearity (INL) of the AD421BNZ?

Typical INL is 0.01%.

What package does the AD421BNZ come in?

It is available in a 16-DIP (0.300", 7.62mm) through-hole package, also known as 16-PDIP.

What is the operating temperature range of the AD421BNZ?

The operating temperature range is -40°C to 85°C.

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