AD420ANZ-32 Data & Signal Conversion by Analog Devices


Status: Unknown
Series: AD420 Series
RoHS: Unknown
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The AD420 is a complete digital to current loop output converter, designed to meet the needs of the industrial control market. It provides a high precision, fully integrated, low cost single-chip solution for generating current loop signals in a compact 24-lead SOIC or PDIP package. The output current range can be programmed to 4 mA to 20 mA, 0 mA to 20 mA or to an overrange function of 0 mA to 24 mA. The AD420 can alternatively provide a voltage output from a separate pin that can be configured to provide 0 V to 5 V, 0 V to 10 V, ±5 V, or ±10 V with the addition of a single external buffer amplifier. The 3.3 M Baud serial input logic design minimizes the cost of galvanic isolation and allows for simple connection to commonly used microprocessors. It can be used in 3-wire or asynchronous mode and a serial-out pin is provided to allow daisy chaining of multiple DACs on the current loop side of the isolation barrier. The AD420 uses sigma-delta (Σ-Δ) DAC technology to achieve 16-bit monotonicity at very low cost. Full-scale settling to 0.1% occurs within 3 ms. The only external components that are required (in addition to normal transient protection circuitry) are two low cost capacitors which are used in the DAC out- put filter. If the AD420 is used at extreme temperatures and supply voltages, an external output transistor can be used to minimize power dissipation on the chip via the BOOST pin. The FAULT DETECT pin signals when an open circuit occurs in the loop. The on-chip voltage reference can be used to supply a precision +5 V to external components in addition to the AD420 or, if the user desires temperature stability exceeding 25 ppm/°C, an external precision reference such as the AD586 can be used as the reference. The AD420 is available in a 24-lead SOIC and PDIP over the industrial temperature range of −40°C to +85°C.
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Logo for Chip One Stop Chip One Stop
100 units
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1 units
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Logo for Newark Electronics Newark Electronics
1 units
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Resolution (Bits) 16bit
Sampling Rate 400SPS
Input Channel Type Serial
Supply Voltage Range 12V to 32V
ADC / DAC Case Style DIP
No. of Pins 24Pins
Data Interface SPI
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range AD420 Series
Automotive Qualification Standard -
SVHC No SVHC (07-Jul-2017)
A/D / D/A Features Internal Reference Latches Microprocessor Compatible
Base Number 420
Conversion Time 3µs
IC Case Style DIP
IC Generic Number 420
Linearity Error 0.012%
Logic Function Number 420
No. of Bits 16bit
No. of Channels 1Channels
Operating Temperature Range -40°C to +85°C
Output Type Current
Power Dissipation Ptot Max 120mW
Settling Time 3ms
Supply Current 4.2mA
Supply Voltage Max 32V
Supply Voltage Min 12V

Alternative Descriptions

AD420ANZ-32 | Elfaro
DAC 1-CH Delta-Sigma 16-bit 24-Pin PDIP Tube | Holdelec
DAC, 16BIT, DIP-24, -40 TO 85DEG C | element14
Resolution (Bits):16bit | Newark Electronics
16bit Ser. DAC I-Outp DIP24 | Schukat Electronic

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Frequently Asked Questions

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Additional datasheets, footprints and schematics for AD420ANZ-32 are listed on our Part Details page. You can also find images and similar parts to AD420ANZ-32 on this page.

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What category does AD420ANZ-32 fall under?

The AD420ANZ-32 is listed under Semiconductors - ICs > Data & Signal Conversion > Digital-to-Analog Converters - DAC.

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Is the AD420ANZ-32 RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Chip One Stop, element14, Newark Electronics, Farnell and Arrow Electronics have stock available or on a lead time for AD420ANZ-32.

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